Merge pull request #12046 from archilogic-com/fxaa_311

Upgrade FXAA to 3.11

examples/files.js

@@ -212,6 +212,7 @@ var files = {
 		"webgl_postprocessing_crossfade",
 		"webgl_postprocessing_dof",
 		"webgl_postprocessing_dof2",
+		"webgl_postprocessing_fxaa",
 		"webgl_postprocessing_glitch",
 		"webgl_postprocessing_godrays",
 		"webgl_postprocessing_masking",

examples/js/shaders/FXAAShader.js

@@ -19,8 +19,11 @@ THREE.FXAAShader = {
 
 	vertexShader: [
 
+		"varying vec2 vUv;",
+
 		"void main() {",
 
+			"vUv = uv;",
 			"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
 
 		"}"
@@ -28,61 +31,1085 @@ THREE.FXAAShader = {
 	].join( "\n" ),
 
 	fragmentShader: [
-
-		"uniform sampler2D tDiffuse;",
-		"uniform vec2 resolution;",
-
-		"#define FXAA_REDUCE_MIN   (1.0/128.0)",
-		"#define FXAA_REDUCE_MUL   (1.0/8.0)",
-		"#define FXAA_SPAN_MAX     8.0",
-
-		"void main() {",
-
-			"vec3 rgbNW = texture2D( tDiffuse, ( gl_FragCoord.xy + vec2( -1.0, -1.0 ) ) * resolution ).xyz;",
-			"vec3 rgbNE = texture2D( tDiffuse, ( gl_FragCoord.xy + vec2( 1.0, -1.0 ) ) * resolution ).xyz;",
-			"vec3 rgbSW = texture2D( tDiffuse, ( gl_FragCoord.xy + vec2( -1.0, 1.0 ) ) * resolution ).xyz;",
-			"vec3 rgbSE = texture2D( tDiffuse, ( gl_FragCoord.xy + vec2( 1.0, 1.0 ) ) * resolution ).xyz;",
-			"vec4 rgbaM  = texture2D( tDiffuse,  gl_FragCoord.xy  * resolution );",
-			"vec3 rgbM  = rgbaM.xyz;",
-			"vec3 luma = vec3( 0.299, 0.587, 0.114 );",
-
-			"float lumaNW = dot( rgbNW, luma );",
-			"float lumaNE = dot( rgbNE, luma );",
-			"float lumaSW = dot( rgbSW, luma );",
-			"float lumaSE = dot( rgbSE, luma );",
-			"float lumaM  = dot( rgbM,  luma );",
-			"float lumaMin = min( lumaM, min( min( lumaNW, lumaNE ), min( lumaSW, lumaSE ) ) );",
-			"float lumaMax = max( lumaM, max( max( lumaNW, lumaNE) , max( lumaSW, lumaSE ) ) );",
-
-			"vec2 dir;",
-			"dir.x = -((lumaNW + lumaNE) - (lumaSW + lumaSE));",
-			"dir.y =  ((lumaNW + lumaSW) - (lumaNE + lumaSE));",
-
-			"float dirReduce = max( ( lumaNW + lumaNE + lumaSW + lumaSE ) * ( 0.25 * FXAA_REDUCE_MUL ), FXAA_REDUCE_MIN );",
-
-			"float rcpDirMin = 1.0 / ( min( abs( dir.x ), abs( dir.y ) ) + dirReduce );",
-			"dir = min( vec2( FXAA_SPAN_MAX,  FXAA_SPAN_MAX),",
-				  "max( vec2(-FXAA_SPAN_MAX, -FXAA_SPAN_MAX),",
-						"dir * rcpDirMin)) * resolution;",
-			"vec4 rgbA = (1.0/2.0) * (",
-        	"texture2D(tDiffuse,  gl_FragCoord.xy  * resolution + dir * (1.0/3.0 - 0.5)) +",
-			"texture2D(tDiffuse,  gl_FragCoord.xy  * resolution + dir * (2.0/3.0 - 0.5)));",
-    		"vec4 rgbB = rgbA * (1.0/2.0) + (1.0/4.0) * (",
-			"texture2D(tDiffuse,  gl_FragCoord.xy  * resolution + dir * (0.0/3.0 - 0.5)) +",
-      		"texture2D(tDiffuse,  gl_FragCoord.xy  * resolution + dir * (3.0/3.0 - 0.5)));",
-    		"float lumaB = dot(rgbB, vec4(luma, 0.0));",
-
-			"if ( ( lumaB < lumaMin ) || ( lumaB > lumaMax ) ) {",
-
-				"gl_FragColor = rgbA;",
-
-			"} else {",
-				"gl_FragColor = rgbB;",
-
-			"}",
-
-		"}"
-
-	].join( "\n" )
+        "precision highp float;",
+        "",
+        "uniform sampler2D tDiffuse;",
+        "",
+        "uniform vec2 resolution;",
+        "",
+        "varying vec2 vUv;",
+        "",
+        "// FXAA 3.11 implementation by NVIDIA, ported to WebGL by Agost Biro ([email protected])",
+        "",
+        "//----------------------------------------------------------------------------------",
+        "// File:        es3-kepler\FXAA\assets\shaders/FXAA_DefaultES.frag",
+        "// SDK Version: v3.00",
+        "// Email:       [email protected]",
+        "// Site:        http://developer.nvidia.com/",
+        "//",
+        "// Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.",
+        "//",
+        "// Redistribution and use in source and binary forms, with or without",
+        "// modification, are permitted provided that the following conditions",
+        "// are met:",
+        "//  * Redistributions of source code must retain the above copyright",
+        "//    notice, this list of conditions and the following disclaimer.",
+        "//  * Redistributions in binary form must reproduce the above copyright",
+        "//    notice, this list of conditions and the following disclaimer in the",
+        "//    documentation and/or other materials provided with the distribution.",
+        "//  * Neither the name of NVIDIA CORPORATION nor the names of its",
+        "//    contributors may be used to endorse or promote products derived",
+        "//    from this software without specific prior written permission.",
+        "//",
+        "// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY",
+        "// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE",
+        "// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR",
+        "// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR",
+        "// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,",
+        "// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,",
+        "// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR",
+        "// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY",
+        "// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT",
+        "// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE",
+        "// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.",
+        "//",
+        "//----------------------------------------------------------------------------------",
+        "",
+        "#define FXAA_PC 1",
+        "#define FXAA_GLSL_100 1",
+        "#define FXAA_QUALITY_PRESET 12",
+        "",
+        "#define FXAA_GREEN_AS_LUMA 1",
+        "",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_PC_CONSOLE",
+        "    //",
+        "    // The console algorithm for PC is included",
+        "    // for developers targeting really low spec machines.",
+        "    // Likely better to just run FXAA_PC, and use a really low preset.",
+        "    //",
+        "    #define FXAA_PC_CONSOLE 0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_GLSL_120",
+        "    #define FXAA_GLSL_120 0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_GLSL_130",
+        "    #define FXAA_GLSL_130 0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_HLSL_3",
+        "    #define FXAA_HLSL_3 0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_HLSL_4",
+        "    #define FXAA_HLSL_4 0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_HLSL_5",
+        "    #define FXAA_HLSL_5 0",
+        "#endif",
+        "/*==========================================================================*/",
+        "#ifndef FXAA_GREEN_AS_LUMA",
+        "    //",
+        "    // For those using non-linear color,",
+        "    // and either not able to get luma in alpha, or not wanting to,",
+        "    // this enables FXAA to run using green as a proxy for luma.",
+        "    // So with this enabled, no need to pack luma in alpha.",
+        "    //",
+        "    // This will turn off AA on anything which lacks some amount of green.",
+        "    // Pure red and blue or combination of only R and B, will get no AA.",
+        "    //",
+        "    // Might want to lower the settings for both,",
+        "    //    fxaaConsoleEdgeThresholdMin",
+        "    //    fxaaQualityEdgeThresholdMin",
+        "    // In order to insure AA does not get turned off on colors",
+        "    // which contain a minor amount of green.",
+        "    //",
+        "    // 1 = On.",
+        "    // 0 = Off.",
+        "    //",
+        "    #define FXAA_GREEN_AS_LUMA 0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_EARLY_EXIT",
+        "    //",
+        "    // Controls algorithm's early exit path.",
+        "    // On PS3 turning this ON adds 2 cycles to the shader.",
+        "    // On 360 turning this OFF adds 10ths of a millisecond to the shader.",
+        "    // Turning this off on console will result in a more blurry image.",
+        "    // So this defaults to on.",
+        "    //",
+        "    // 1 = On.",
+        "    // 0 = Off.",
+        "    //",
+        "    #define FXAA_EARLY_EXIT 1",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_DISCARD",
+        "    //",
+        "    // Only valid for PC OpenGL currently.",
+        "    // Probably will not work when FXAA_GREEN_AS_LUMA = 1.",
+        "    //",
+        "    // 1 = Use discard on pixels which don't need AA.",
+        "    //     For APIs which enable concurrent TEX+ROP from same surface.",
+        "    // 0 = Return unchanged color on pixels which don't need AA.",
+        "    //",
+        "    #define FXAA_DISCARD 0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_FAST_PIXEL_OFFSET",
+        "    //",
+        "    // Used for GLSL 120 only.",
+        "    //",
+        "    // 1 = GL API supports fast pixel offsets",
+        "    // 0 = do not use fast pixel offsets",
+        "    //",
+        "    #ifdef GL_EXT_gpu_shader4",
+        "        #define FXAA_FAST_PIXEL_OFFSET 1",
+        "    #endif",
+        "    #ifdef GL_NV_gpu_shader5",
+        "        #define FXAA_FAST_PIXEL_OFFSET 1",
+        "    #endif",
+        "    #ifdef GL_ARB_gpu_shader5",
+        "        #define FXAA_FAST_PIXEL_OFFSET 1",
+        "    #endif",
+        "    #ifndef FXAA_FAST_PIXEL_OFFSET",
+        "        #define FXAA_FAST_PIXEL_OFFSET 0",
+        "    #endif",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#ifndef FXAA_GATHER4_ALPHA",
+        "    //",
+        "    // 1 = API supports gather4 on alpha channel.",
+        "    // 0 = API does not support gather4 on alpha channel.",
+        "    //",
+        "    #if (FXAA_HLSL_5 == 1)",
+        "        #define FXAA_GATHER4_ALPHA 1",
+        "    #endif",
+        "    #ifdef GL_ARB_gpu_shader5",
+        "        #define FXAA_GATHER4_ALPHA 1",
+        "    #endif",
+        "    #ifdef GL_NV_gpu_shader5",
+        "        #define FXAA_GATHER4_ALPHA 1",
+        "    #endif",
+        "    #ifndef FXAA_GATHER4_ALPHA",
+        "        #define FXAA_GATHER4_ALPHA 0",
+        "    #endif",
+        "#endif",
+        "",
+        "",
+        "/*============================================================================",
+        "                        FXAA QUALITY - TUNING KNOBS",
+        "------------------------------------------------------------------------------",
+        "NOTE the other tuning knobs are now in the shader function inputs!",
+        "============================================================================*/",
+        "#ifndef FXAA_QUALITY_PRESET",
+        "    //",
+        "    // Choose the quality preset.",
+        "    // This needs to be compiled into the shader as it effects code.",
+        "    // Best option to include multiple presets is to",
+        "    // in each shader define the preset, then include this file.",
+        "    //",
+        "    // OPTIONS",
+        "    // -----------------------------------------------------------------------",
+        "    // 10 to 15 - default medium dither (10=fastest, 15=highest quality)",
+        "    // 20 to 29 - less dither, more expensive (20=fastest, 29=highest quality)",
+        "    // 39       - no dither, very expensive",
+        "    //",
+        "    // NOTES",
+        "    // -----------------------------------------------------------------------",
+        "    // 12 = slightly faster then FXAA 3.9 and higher edge quality (default)",
+        "    // 13 = about same speed as FXAA 3.9 and better than 12",
+        "    // 23 = closest to FXAA 3.9 visually and performance wise",
+        "    //  _ = the lowest digit is directly related to performance",
+        "    // _  = the highest digit is directly related to style",
+        "    //",
+        "    #define FXAA_QUALITY_PRESET 12",
+        "#endif",
+        "",
+        "",
+        "/*============================================================================",
+        "",
+        "                           FXAA QUALITY - PRESETS",
+        "",
+        "============================================================================*/",
+        "",
+        "/*============================================================================",
+        "                     FXAA QUALITY - MEDIUM DITHER PRESETS",
+        "============================================================================*/",
+        "#if (FXAA_QUALITY_PRESET == 10)",
+        "    #define FXAA_QUALITY_PS 3",
+        "    #define FXAA_QUALITY_P0 1.5",
+        "    #define FXAA_QUALITY_P1 3.0",
+        "    #define FXAA_QUALITY_P2 12.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 11)",
+        "    #define FXAA_QUALITY_PS 4",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 3.0",
+        "    #define FXAA_QUALITY_P3 12.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 12)",
+        "    #define FXAA_QUALITY_PS 5",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 4.0",
+        "    #define FXAA_QUALITY_P4 12.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 13)",
+        "    #define FXAA_QUALITY_PS 6",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 4.0",
+        "    #define FXAA_QUALITY_P5 12.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 14)",
+        "    #define FXAA_QUALITY_PS 7",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 4.0",
+        "    #define FXAA_QUALITY_P6 12.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 15)",
+        "    #define FXAA_QUALITY_PS 8",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 2.0",
+        "    #define FXAA_QUALITY_P6 4.0",
+        "    #define FXAA_QUALITY_P7 12.0",
+        "#endif",
+        "",
+        "/*============================================================================",
+        "                     FXAA QUALITY - LOW DITHER PRESETS",
+        "============================================================================*/",
+        "#if (FXAA_QUALITY_PRESET == 20)",
+        "    #define FXAA_QUALITY_PS 3",
+        "    #define FXAA_QUALITY_P0 1.5",
+        "    #define FXAA_QUALITY_P1 2.0",
+        "    #define FXAA_QUALITY_P2 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 21)",
+        "    #define FXAA_QUALITY_PS 4",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 22)",
+        "    #define FXAA_QUALITY_PS 5",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 23)",
+        "    #define FXAA_QUALITY_PS 6",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 24)",
+        "    #define FXAA_QUALITY_PS 7",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 3.0",
+        "    #define FXAA_QUALITY_P6 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 25)",
+        "    #define FXAA_QUALITY_PS 8",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 2.0",
+        "    #define FXAA_QUALITY_P6 4.0",
+        "    #define FXAA_QUALITY_P7 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 26)",
+        "    #define FXAA_QUALITY_PS 9",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 2.0",
+        "    #define FXAA_QUALITY_P6 2.0",
+        "    #define FXAA_QUALITY_P7 4.0",
+        "    #define FXAA_QUALITY_P8 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 27)",
+        "    #define FXAA_QUALITY_PS 10",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 2.0",
+        "    #define FXAA_QUALITY_P6 2.0",
+        "    #define FXAA_QUALITY_P7 2.0",
+        "    #define FXAA_QUALITY_P8 4.0",
+        "    #define FXAA_QUALITY_P9 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 28)",
+        "    #define FXAA_QUALITY_PS 11",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 2.0",
+        "    #define FXAA_QUALITY_P6 2.0",
+        "    #define FXAA_QUALITY_P7 2.0",
+        "    #define FXAA_QUALITY_P8 2.0",
+        "    #define FXAA_QUALITY_P9 4.0",
+        "    #define FXAA_QUALITY_P10 8.0",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_QUALITY_PRESET == 29)",
+        "    #define FXAA_QUALITY_PS 12",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.5",
+        "    #define FXAA_QUALITY_P2 2.0",
+        "    #define FXAA_QUALITY_P3 2.0",
+        "    #define FXAA_QUALITY_P4 2.0",
+        "    #define FXAA_QUALITY_P5 2.0",
+        "    #define FXAA_QUALITY_P6 2.0",
+        "    #define FXAA_QUALITY_P7 2.0",
+        "    #define FXAA_QUALITY_P8 2.0",
+        "    #define FXAA_QUALITY_P9 2.0",
+        "    #define FXAA_QUALITY_P10 4.0",
+        "    #define FXAA_QUALITY_P11 8.0",
+        "#endif",
+        "",
+        "/*============================================================================",
+        "                     FXAA QUALITY - EXTREME QUALITY",
+        "============================================================================*/",
+        "#if (FXAA_QUALITY_PRESET == 39)",
+        "    #define FXAA_QUALITY_PS 12",
+        "    #define FXAA_QUALITY_P0 1.0",
+        "    #define FXAA_QUALITY_P1 1.0",
+        "    #define FXAA_QUALITY_P2 1.0",
+        "    #define FXAA_QUALITY_P3 1.0",
+        "    #define FXAA_QUALITY_P4 1.0",
+        "    #define FXAA_QUALITY_P5 1.5",
+        "    #define FXAA_QUALITY_P6 2.0",
+        "    #define FXAA_QUALITY_P7 2.0",
+        "    #define FXAA_QUALITY_P8 2.0",
+        "    #define FXAA_QUALITY_P9 2.0",
+        "    #define FXAA_QUALITY_P10 4.0",
+        "    #define FXAA_QUALITY_P11 8.0",
+        "#endif",
+        "",
+        "",
+        "",
+        "/*============================================================================",
+        "",
+        "                                API PORTING",
+        "",
+        "============================================================================*/",
+        "#if (FXAA_GLSL_100 == 1) || (FXAA_GLSL_120 == 1) || (FXAA_GLSL_130 == 1)",
+        "    #define FxaaBool bool",
+        "    #define FxaaDiscard discard",
+        "    #define FxaaFloat float",
+        "    #define FxaaFloat2 vec2",
+        "    #define FxaaFloat3 vec3",
+        "    #define FxaaFloat4 vec4",
+        "    #define FxaaHalf float",
+        "    #define FxaaHalf2 vec2",
+        "    #define FxaaHalf3 vec3",
+        "    #define FxaaHalf4 vec4",
+        "    #define FxaaInt2 ivec2",
+        "    #define FxaaSat(x) clamp(x, 0.0, 1.0)",
+        "    #define FxaaTex sampler2D",
+        "#else",
+        "    #define FxaaBool bool",
+        "    #define FxaaDiscard clip(-1)",
+        "    #define FxaaFloat float",
+        "    #define FxaaFloat2 float2",
+        "    #define FxaaFloat3 float3",
+        "    #define FxaaFloat4 float4",
+        "    #define FxaaHalf half",
+        "    #define FxaaHalf2 half2",
+        "    #define FxaaHalf3 half3",
+        "    #define FxaaHalf4 half4",
+        "    #define FxaaSat(x) saturate(x)",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_GLSL_100 == 1)",
+        "  #define FxaaTexTop(t, p) texture2D(t, p, 0.0)",
+        "  #define FxaaTexOff(t, p, o, r) texture2D(t, p + (o * r), 0.0)",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_GLSL_120 == 1)",
+        "    // Requires,",
+        "    //  #version 120",
+        "    // And at least,",
+        "    //  #extension GL_EXT_gpu_shader4 : enable",
+        "    //  (or set FXAA_FAST_PIXEL_OFFSET 1 to work like DX9)",
+        "    #define FxaaTexTop(t, p) texture2DLod(t, p, 0.0)",
+        "    #if (FXAA_FAST_PIXEL_OFFSET == 1)",
+        "        #define FxaaTexOff(t, p, o, r) texture2DLodOffset(t, p, 0.0, o)",
+        "    #else",
+        "        #define FxaaTexOff(t, p, o, r) texture2DLod(t, p + (o * r), 0.0)",
+        "    #endif",
+        "    #if (FXAA_GATHER4_ALPHA == 1)",
+        "        // use #extension GL_ARB_gpu_shader5 : enable",
+        "        #define FxaaTexAlpha4(t, p) textureGather(t, p, 3)",
+        "        #define FxaaTexOffAlpha4(t, p, o) textureGatherOffset(t, p, o, 3)",
+        "        #define FxaaTexGreen4(t, p) textureGather(t, p, 1)",
+        "        #define FxaaTexOffGreen4(t, p, o) textureGatherOffset(t, p, o, 1)",
+        "    #endif",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_GLSL_130 == 1)",
+        "    // Requires \"#version 130\" or better",
+        "    #define FxaaTexTop(t, p) textureLod(t, p, 0.0)",
+        "    #define FxaaTexOff(t, p, o, r) textureLodOffset(t, p, 0.0, o)",
+        "    #if (FXAA_GATHER4_ALPHA == 1)",
+        "        // use #extension GL_ARB_gpu_shader5 : enable",
+        "        #define FxaaTexAlpha4(t, p) textureGather(t, p, 3)",
+        "        #define FxaaTexOffAlpha4(t, p, o) textureGatherOffset(t, p, o, 3)",
+        "        #define FxaaTexGreen4(t, p) textureGather(t, p, 1)",
+        "        #define FxaaTexOffGreen4(t, p, o) textureGatherOffset(t, p, o, 1)",
+        "    #endif",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_HLSL_3 == 1)",
+        "    #define FxaaInt2 float2",
+        "    #define FxaaTex sampler2D",
+        "    #define FxaaTexTop(t, p) tex2Dlod(t, float4(p, 0.0, 0.0))",
+        "    #define FxaaTexOff(t, p, o, r) tex2Dlod(t, float4(p + (o * r), 0, 0))",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_HLSL_4 == 1)",
+        "    #define FxaaInt2 int2",
+        "    struct FxaaTex { SamplerState smpl; Texture2D tex; };",
+        "    #define FxaaTexTop(t, p) t.tex.SampleLevel(t.smpl, p, 0.0)",
+        "    #define FxaaTexOff(t, p, o, r) t.tex.SampleLevel(t.smpl, p, 0.0, o)",
+        "#endif",
+        "/*--------------------------------------------------------------------------*/",
+        "#if (FXAA_HLSL_5 == 1)",
+        "    #define FxaaInt2 int2",
+        "    struct FxaaTex { SamplerState smpl; Texture2D tex; };",
+        "    #define FxaaTexTop(t, p) t.tex.SampleLevel(t.smpl, p, 0.0)",
+        "    #define FxaaTexOff(t, p, o, r) t.tex.SampleLevel(t.smpl, p, 0.0, o)",
+        "    #define FxaaTexAlpha4(t, p) t.tex.GatherAlpha(t.smpl, p)",
+        "    #define FxaaTexOffAlpha4(t, p, o) t.tex.GatherAlpha(t.smpl, p, o)",
+        "    #define FxaaTexGreen4(t, p) t.tex.GatherGreen(t.smpl, p)",
+        "    #define FxaaTexOffGreen4(t, p, o) t.tex.GatherGreen(t.smpl, p, o)",
+        "#endif",
+        "",
+        "",
+        "/*============================================================================",
+        "                   GREEN AS LUMA OPTION SUPPORT FUNCTION",
+        "============================================================================*/",
+        "#if (FXAA_GREEN_AS_LUMA == 0)",
+        "    FxaaFloat FxaaLuma(FxaaFloat4 rgba) { return rgba.w; }",
+        "#else",
+        "    FxaaFloat FxaaLuma(FxaaFloat4 rgba) { return rgba.y; }",
+        "#endif",
+        "",
+        "",
+        "",
+        "",
+        "/*============================================================================",
+        "",
+        "                             FXAA3 QUALITY - PC",
+        "",
+        "============================================================================*/",
+        "#if (FXAA_PC == 1)",
+        "/*--------------------------------------------------------------------------*/",
+        "FxaaFloat4 FxaaPixelShader(",
+        "    //",
+        "    // Use noperspective interpolation here (turn off perspective interpolation).",
+        "    // {xy} = center of pixel",
+        "    FxaaFloat2 pos,",
+        "    //",
+        "    // Used only for FXAA Console, and not used on the 360 version.",
+        "    // Use noperspective interpolation here (turn off perspective interpolation).",
+        "    // {xy_} = upper left of pixel",
+        "    // {_zw} = lower right of pixel",
+        "    FxaaFloat4 fxaaConsolePosPos,",
+        "    //",
+        "    // Input color texture.",
+        "    // {rgb_} = color in linear or perceptual color space",
+        "    // if (FXAA_GREEN_AS_LUMA == 0)",
+        "    //     {__a} = luma in perceptual color space (not linear)",
+        "    FxaaTex tex,",
+        "    //",
+        "    // Only used on the optimized 360 version of FXAA Console.",
+        "    // For everything but 360, just use the same input here as for \"tex\".",
+        "    // For 360, same texture, just alias with a 2nd sampler.",
+        "    // This sampler needs to have an exponent bias of -1.",
+        "    FxaaTex fxaaConsole360TexExpBiasNegOne,",
+        "    //",
+        "    // Only used on the optimized 360 version of FXAA Console.",
+        "    // For everything but 360, just use the same input here as for \"tex\".",
+        "    // For 360, same texture, just alias with a 3nd sampler.",
+        "    // This sampler needs to have an exponent bias of -2.",
+        "    FxaaTex fxaaConsole360TexExpBiasNegTwo,",
+        "    //",
+        "    // Only used on FXAA Quality.",
+        "    // This must be from a constant/uniform.",
+        "    // {x_} = 1.0/screenWidthInPixels",
+        "    // {_y} = 1.0/screenHeightInPixels",
+        "    FxaaFloat2 fxaaQualityRcpFrame,",
+        "    //",
+        "    // Only used on FXAA Console.",
+        "    // This must be from a constant/uniform.",
+        "    // This effects sub-pixel AA quality and inversely sharpness.",
+        "    //   Where N ranges between,",
+        "    //     N = 0.50 (default)",
+        "    //     N = 0.33 (sharper)",
+        "    // {x__} = -N/screenWidthInPixels",
+        "    // {_y_} = -N/screenHeightInPixels",
+        "    // {_z_} =  N/screenWidthInPixels",
+        "    // {__w} =  N/screenHeightInPixels",
+        "    FxaaFloat4 fxaaConsoleRcpFrameOpt,",
+        "    //",
+        "    // Only used on FXAA Console.",
+        "    // Not used on 360, but used on PS3 and PC.",
+        "    // This must be from a constant/uniform.",
+        "    // {x__} = -2.0/screenWidthInPixels",
+        "    // {_y_} = -2.0/screenHeightInPixels",
+        "    // {_z_} =  2.0/screenWidthInPixels",
+        "    // {__w} =  2.0/screenHeightInPixels",
+        "    FxaaFloat4 fxaaConsoleRcpFrameOpt2,",
+        "    //",
+        "    // Only used on FXAA Console.",
+        "    // Only used on 360 in place of fxaaConsoleRcpFrameOpt2.",
+        "    // This must be from a constant/uniform.",
+        "    // {x__} =  8.0/screenWidthInPixels",
+        "    // {_y_} =  8.0/screenHeightInPixels",
+        "    // {_z_} = -4.0/screenWidthInPixels",
+        "    // {__w} = -4.0/screenHeightInPixels",
+        "    FxaaFloat4 fxaaConsole360RcpFrameOpt2,",
+        "    //",
+        "    // Only used on FXAA Quality.",
+        "    // This used to be the FXAA_QUALITY_SUBPIX define.",
+        "    // It is here now to allow easier tuning.",
+        "    // Choose the amount of sub-pixel aliasing removal.",
+        "    // This can effect sharpness.",
+        "    //   1.00 - upper limit (softer)",
+        "    //   0.75 - default amount of filtering",
+        "    //   0.50 - lower limit (sharper, less sub-pixel aliasing removal)",
+        "    //   0.25 - almost off",
+        "    //   0.00 - completely off",
+        "    FxaaFloat fxaaQualitySubpix,",
+        "    //",
+        "    // Only used on FXAA Quality.",
+        "    // This used to be the FXAA_QUALITY_EDGE_THRESHOLD define.",
+        "    // It is here now to allow easier tuning.",
+        "    // The minimum amount of local contrast required to apply algorithm.",
+        "    //   0.333 - too little (faster)",
+        "    //   0.250 - low quality",
+        "    //   0.166 - default",
+        "    //   0.125 - high quality",
+        "    //   0.063 - overkill (slower)",
+        "    FxaaFloat fxaaQualityEdgeThreshold,",
+        "    //",
+        "    // Only used on FXAA Quality.",
+        "    // This used to be the FXAA_QUALITY_EDGE_THRESHOLD_MIN define.",
+        "    // It is here now to allow easier tuning.",
+        "    // Trims the algorithm from processing darks.",
+        "    //   0.0833 - upper limit (default, the start of visible unfiltered edges)",
+        "    //   0.0625 - high quality (faster)",
+        "    //   0.0312 - visible limit (slower)",
+        "    // Special notes when using FXAA_GREEN_AS_LUMA,",
+        "    //   Likely want to set this to zero.",
+        "    //   As colors that are mostly not-green",
+        "    //   will appear very dark in the green channel!",
+        "    //   Tune by looking at mostly non-green content,",
+        "    //   then start at zero and increase until aliasing is a problem.",
+        "    FxaaFloat fxaaQualityEdgeThresholdMin,",
+        "    //",
+        "    // Only used on FXAA Console.",
+        "    // This used to be the FXAA_CONSOLE_EDGE_SHARPNESS define.",
+        "    // It is here now to allow easier tuning.",
+        "    // This does not effect PS3, as this needs to be compiled in.",
+        "    //   Use FXAA_CONSOLE_PS3_EDGE_SHARPNESS for PS3.",
+        "    //   Due to the PS3 being ALU bound,",
+        "    //   there are only three safe values here: 2 and 4 and 8.",
+        "    //   These options use the shaders ability to a free *|/ by 2|4|8.",
+        "    // For all other platforms can be a non-power of two.",
+        "    //   8.0 is sharper (default!!!)",
+        "    //   4.0 is softer",
+        "    //   2.0 is really soft (good only for vector graphics inputs)",
+        "    FxaaFloat fxaaConsoleEdgeSharpness,",
+        "    //",
+        "    // Only used on FXAA Console.",
+        "    // This used to be the FXAA_CONSOLE_EDGE_THRESHOLD define.",
+        "    // It is here now to allow easier tuning.",
+        "    // This does not effect PS3, as this needs to be compiled in.",
+        "    //   Use FXAA_CONSOLE_PS3_EDGE_THRESHOLD for PS3.",
+        "    //   Due to the PS3 being ALU bound,",
+        "    //   there are only two safe values here: 1/4 and 1/8.",
+        "    //   These options use the shaders ability to a free *|/ by 2|4|8.",
+        "    // The console setting has a different mapping than the quality setting.",
+        "    // Other platforms can use other values.",
+        "    //   0.125 leaves less aliasing, but is softer (default!!!)",
+        "    //   0.25 leaves more aliasing, and is sharper",
+        "    FxaaFloat fxaaConsoleEdgeThreshold,",
+        "    //",
+        "    // Only used on FXAA Console.",
+        "    // This used to be the FXAA_CONSOLE_EDGE_THRESHOLD_MIN define.",
+        "    // It is here now to allow easier tuning.",
+        "    // Trims the algorithm from processing darks.",
+        "    // The console setting has a different mapping than the quality setting.",
+        "    // This only applies when FXAA_EARLY_EXIT is 1.",
+        "    // This does not apply to PS3,",
+        "    // PS3 was simplified to avoid more shader instructions.",
+        "    //   0.06 - faster but more aliasing in darks",
+        "    //   0.05 - default",
+        "    //   0.04 - slower and less aliasing in darks",
+        "    // Special notes when using FXAA_GREEN_AS_LUMA,",
+        "    //   Likely want to set this to zero.",
+        "    //   As colors that are mostly not-green",
+        "    //   will appear very dark in the green channel!",
+        "    //   Tune by looking at mostly non-green content,",
+        "    //   then start at zero and increase until aliasing is a problem.",
+        "    FxaaFloat fxaaConsoleEdgeThresholdMin,",
+        "    //",
+        "    // Extra constants for 360 FXAA Console only.",
+        "    // Use zeros or anything else for other platforms.",
+        "    // These must be in physical constant registers and NOT immedates.",
+        "    // Immedates will result in compiler un-optimizing.",
+        "    // {xyzw} = float4(1.0, -1.0, 0.25, -0.25)",
+        "    FxaaFloat4 fxaaConsole360ConstDir",
+        ") {",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat2 posM;",
+        "    posM.x = pos.x;",
+        "    posM.y = pos.y;",
+        "    #if (FXAA_GATHER4_ALPHA == 1)",
+        "        #if (FXAA_DISCARD == 0)",
+        "            FxaaFloat4 rgbyM = FxaaTexTop(tex, posM);",
+        "            #if (FXAA_GREEN_AS_LUMA == 0)",
+        "                #define lumaM rgbyM.w",
+        "            #else",
+        "                #define lumaM rgbyM.y",
+        "            #endif",
+        "        #endif",
+        "        #if (FXAA_GREEN_AS_LUMA == 0)",
+        "            FxaaFloat4 luma4A = FxaaTexAlpha4(tex, posM);",
+        "            FxaaFloat4 luma4B = FxaaTexOffAlpha4(tex, posM, FxaaInt2(-1, -1));",
+        "        #else",
+        "            FxaaFloat4 luma4A = FxaaTexGreen4(tex, posM);",
+        "            FxaaFloat4 luma4B = FxaaTexOffGreen4(tex, posM, FxaaInt2(-1, -1));",
+        "        #endif",
+        "        #if (FXAA_DISCARD == 1)",
+        "            #define lumaM luma4A.w",
+        "        #endif",
+        "        #define lumaE luma4A.z",
+        "        #define lumaS luma4A.x",
+        "        #define lumaSE luma4A.y",
+        "        #define lumaNW luma4B.w",
+        "        #define lumaN luma4B.z",
+        "        #define lumaW luma4B.x",
+        "    #else",
+        "        FxaaFloat4 rgbyM = FxaaTexTop(tex, posM);",
+        "        #if (FXAA_GREEN_AS_LUMA == 0)",
+        "            #define lumaM rgbyM.w",
+        "        #else",
+        "            #define lumaM rgbyM.y",
+        "        #endif",
+        "        #if (FXAA_GLSL_100 == 1)",
+        "          FxaaFloat lumaS = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 0.0, 1.0), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaE = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 1.0, 0.0), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaN = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 0.0,-1.0), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaW = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2(-1.0, 0.0), fxaaQualityRcpFrame.xy));",
+        "        #else",
+        "          FxaaFloat lumaS = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 0, 1), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1, 0), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaN = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 0,-1), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 0), fxaaQualityRcpFrame.xy));",
+        "        #endif",
+        "    #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat maxSM = max(lumaS, lumaM);",
+        "    FxaaFloat minSM = min(lumaS, lumaM);",
+        "    FxaaFloat maxESM = max(lumaE, maxSM);",
+        "    FxaaFloat minESM = min(lumaE, minSM);",
+        "    FxaaFloat maxWN = max(lumaN, lumaW);",
+        "    FxaaFloat minWN = min(lumaN, lumaW);",
+        "    FxaaFloat rangeMax = max(maxWN, maxESM);",
+        "    FxaaFloat rangeMin = min(minWN, minESM);",
+        "    FxaaFloat rangeMaxScaled = rangeMax * fxaaQualityEdgeThreshold;",
+        "    FxaaFloat range = rangeMax - rangeMin;",
+        "    FxaaFloat rangeMaxClamped = max(fxaaQualityEdgeThresholdMin, rangeMaxScaled);",
+        "    FxaaBool earlyExit = range < rangeMaxClamped;",
+        "/*--------------------------------------------------------------------------*/",
+        "    if(earlyExit)",
+        "        #if (FXAA_DISCARD == 1)",
+        "            FxaaDiscard;",
+        "        #else",
+        "            return rgbyM;",
+        "        #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "    #if (FXAA_GATHER4_ALPHA == 0)",
+        "        #if (FXAA_GLSL_100 == 1)",
+        "          FxaaFloat lumaNW = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2(-1.0,-1.0), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaSE = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 1.0, 1.0), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 1.0,-1.0), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2(-1.0, 1.0), fxaaQualityRcpFrame.xy));",
+        "        #else",
+        "          FxaaFloat lumaNW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1,-1), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaSE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1, 1), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1,-1), fxaaQualityRcpFrame.xy));",
+        "          FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 1), fxaaQualityRcpFrame.xy));",
+        "        #endif",
+        "    #else",
+        "        FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(1, -1), fxaaQualityRcpFrame.xy));",
+        "        FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 1), fxaaQualityRcpFrame.xy));",
+        "    #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat lumaNS = lumaN + lumaS;",
+        "    FxaaFloat lumaWE = lumaW + lumaE;",
+        "    FxaaFloat subpixRcpRange = 1.0/range;",
+        "    FxaaFloat subpixNSWE = lumaNS + lumaWE;",
+        "    FxaaFloat edgeHorz1 = (-2.0 * lumaM) + lumaNS;",
+        "    FxaaFloat edgeVert1 = (-2.0 * lumaM) + lumaWE;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat lumaNESE = lumaNE + lumaSE;",
+        "    FxaaFloat lumaNWNE = lumaNW + lumaNE;",
+        "    FxaaFloat edgeHorz2 = (-2.0 * lumaE) + lumaNESE;",
+        "    FxaaFloat edgeVert2 = (-2.0 * lumaN) + lumaNWNE;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat lumaNWSW = lumaNW + lumaSW;",
+        "    FxaaFloat lumaSWSE = lumaSW + lumaSE;",
+        "    FxaaFloat edgeHorz4 = (abs(edgeHorz1) * 2.0) + abs(edgeHorz2);",
+        "    FxaaFloat edgeVert4 = (abs(edgeVert1) * 2.0) + abs(edgeVert2);",
+        "    FxaaFloat edgeHorz3 = (-2.0 * lumaW) + lumaNWSW;",
+        "    FxaaFloat edgeVert3 = (-2.0 * lumaS) + lumaSWSE;",
+        "    FxaaFloat edgeHorz = abs(edgeHorz3) + edgeHorz4;",
+        "    FxaaFloat edgeVert = abs(edgeVert3) + edgeVert4;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat subpixNWSWNESE = lumaNWSW + lumaNESE;",
+        "    FxaaFloat lengthSign = fxaaQualityRcpFrame.x;",
+        "    FxaaBool horzSpan = edgeHorz >= edgeVert;",
+        "    FxaaFloat subpixA = subpixNSWE * 2.0 + subpixNWSWNESE;",
+        "/*--------------------------------------------------------------------------*/",
+        "    if(!horzSpan) lumaN = lumaW;",
+        "    if(!horzSpan) lumaS = lumaE;",
+        "    if(horzSpan) lengthSign = fxaaQualityRcpFrame.y;",
+        "    FxaaFloat subpixB = (subpixA * (1.0/12.0)) - lumaM;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat gradientN = lumaN - lumaM;",
+        "    FxaaFloat gradientS = lumaS - lumaM;",
+        "    FxaaFloat lumaNN = lumaN + lumaM;",
+        "    FxaaFloat lumaSS = lumaS + lumaM;",
+        "    FxaaBool pairN = abs(gradientN) >= abs(gradientS);",
+        "    FxaaFloat gradient = max(abs(gradientN), abs(gradientS));",
+        "    if(pairN) lengthSign = -lengthSign;",
+        "    FxaaFloat subpixC = FxaaSat(abs(subpixB) * subpixRcpRange);",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat2 posB;",
+        "    posB.x = posM.x;",
+        "    posB.y = posM.y;",
+        "    FxaaFloat2 offNP;",
+        "    offNP.x = (!horzSpan) ? 0.0 : fxaaQualityRcpFrame.x;",
+        "    offNP.y = ( horzSpan) ? 0.0 : fxaaQualityRcpFrame.y;",
+        "    if(!horzSpan) posB.x += lengthSign * 0.5;",
+        "    if( horzSpan) posB.y += lengthSign * 0.5;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat2 posN;",
+        "    posN.x = posB.x - offNP.x * FXAA_QUALITY_P0;",
+        "    posN.y = posB.y - offNP.y * FXAA_QUALITY_P0;",
+        "    FxaaFloat2 posP;",
+        "    posP.x = posB.x + offNP.x * FXAA_QUALITY_P0;",
+        "    posP.y = posB.y + offNP.y * FXAA_QUALITY_P0;",
+        "    FxaaFloat subpixD = ((-2.0)*subpixC) + 3.0;",
+        "    FxaaFloat lumaEndN = FxaaLuma(FxaaTexTop(tex, posN));",
+        "    FxaaFloat subpixE = subpixC * subpixC;",
+        "    FxaaFloat lumaEndP = FxaaLuma(FxaaTexTop(tex, posP));",
+        "/*--------------------------------------------------------------------------*/",
+        "    if(!pairN) lumaNN = lumaSS;",
+        "    FxaaFloat gradientScaled = gradient * 1.0/4.0;",
+        "    FxaaFloat lumaMM = lumaM - lumaNN * 0.5;",
+        "    FxaaFloat subpixF = subpixD * subpixE;",
+        "    FxaaBool lumaMLTZero = lumaMM < 0.0;",
+        "/*--------------------------------------------------------------------------*/",
+        "    lumaEndN -= lumaNN * 0.5;",
+        "    lumaEndP -= lumaNN * 0.5;",
+        "    FxaaBool doneN = abs(lumaEndN) >= gradientScaled;",
+        "    FxaaBool doneP = abs(lumaEndP) >= gradientScaled;",
+        "    if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P1;",
+        "    if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P1;",
+        "    FxaaBool doneNP = (!doneN) || (!doneP);",
+        "    if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P1;",
+        "    if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P1;",
+        "/*--------------------------------------------------------------------------*/",
+        "    if(doneNP) {",
+        "        if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "        if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "        doneN = abs(lumaEndN) >= gradientScaled;",
+        "        doneP = abs(lumaEndP) >= gradientScaled;",
+        "        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P2;",
+        "        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P2;",
+        "        doneNP = (!doneN) || (!doneP);",
+        "        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P2;",
+        "        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P2;",
+        "/*--------------------------------------------------------------------------*/",
+        "        #if (FXAA_QUALITY_PS > 3)",
+        "        if(doneNP) {",
+        "            if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "            if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "            if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "            if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "            doneN = abs(lumaEndN) >= gradientScaled;",
+        "            doneP = abs(lumaEndP) >= gradientScaled;",
+        "            if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P3;",
+        "            if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P3;",
+        "            doneNP = (!doneN) || (!doneP);",
+        "            if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P3;",
+        "            if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P3;",
+        "/*--------------------------------------------------------------------------*/",
+        "            #if (FXAA_QUALITY_PS > 4)",
+        "            if(doneNP) {",
+        "                if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "                if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "                if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "                if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "                doneN = abs(lumaEndN) >= gradientScaled;",
+        "                doneP = abs(lumaEndP) >= gradientScaled;",
+        "                if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P4;",
+        "                if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P4;",
+        "                doneNP = (!doneN) || (!doneP);",
+        "                if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P4;",
+        "                if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P4;",
+        "/*--------------------------------------------------------------------------*/",
+        "                #if (FXAA_QUALITY_PS > 5)",
+        "                if(doneNP) {",
+        "                    if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "                    if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "                    if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "                    if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "                    doneN = abs(lumaEndN) >= gradientScaled;",
+        "                    doneP = abs(lumaEndP) >= gradientScaled;",
+        "                    if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P5;",
+        "                    if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P5;",
+        "                    doneNP = (!doneN) || (!doneP);",
+        "                    if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P5;",
+        "                    if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P5;",
+        "/*--------------------------------------------------------------------------*/",
+        "                    #if (FXAA_QUALITY_PS > 6)",
+        "                    if(doneNP) {",
+        "                        if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "                        if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "                        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "                        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "                        doneN = abs(lumaEndN) >= gradientScaled;",
+        "                        doneP = abs(lumaEndP) >= gradientScaled;",
+        "                        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P6;",
+        "                        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P6;",
+        "                        doneNP = (!doneN) || (!doneP);",
+        "                        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P6;",
+        "                        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P6;",
+        "/*--------------------------------------------------------------------------*/",
+        "                        #if (FXAA_QUALITY_PS > 7)",
+        "                        if(doneNP) {",
+        "                            if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "                            if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "                            if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "                            if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "                            doneN = abs(lumaEndN) >= gradientScaled;",
+        "                            doneP = abs(lumaEndP) >= gradientScaled;",
+        "                            if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P7;",
+        "                            if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P7;",
+        "                            doneNP = (!doneN) || (!doneP);",
+        "                            if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P7;",
+        "                            if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P7;",
+        "/*--------------------------------------------------------------------------*/",
+        "    #if (FXAA_QUALITY_PS > 8)",
+        "    if(doneNP) {",
+        "        if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "        if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "        doneN = abs(lumaEndN) >= gradientScaled;",
+        "        doneP = abs(lumaEndP) >= gradientScaled;",
+        "        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P8;",
+        "        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P8;",
+        "        doneNP = (!doneN) || (!doneP);",
+        "        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P8;",
+        "        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P8;",
+        "/*--------------------------------------------------------------------------*/",
+        "        #if (FXAA_QUALITY_PS > 9)",
+        "        if(doneNP) {",
+        "            if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "            if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "            if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "            if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "            doneN = abs(lumaEndN) >= gradientScaled;",
+        "            doneP = abs(lumaEndP) >= gradientScaled;",
+        "            if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P9;",
+        "            if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P9;",
+        "            doneNP = (!doneN) || (!doneP);",
+        "            if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P9;",
+        "            if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P9;",
+        "/*--------------------------------------------------------------------------*/",
+        "            #if (FXAA_QUALITY_PS > 10)",
+        "            if(doneNP) {",
+        "                if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "                if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "                if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "                if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "                doneN = abs(lumaEndN) >= gradientScaled;",
+        "                doneP = abs(lumaEndP) >= gradientScaled;",
+        "                if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P10;",
+        "                if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P10;",
+        "                doneNP = (!doneN) || (!doneP);",
+        "                if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P10;",
+        "                if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P10;",
+        "/*--------------------------------------------------------------------------*/",
+        "                #if (FXAA_QUALITY_PS > 11)",
+        "                if(doneNP) {",
+        "                    if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "                    if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "                    if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "                    if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "                    doneN = abs(lumaEndN) >= gradientScaled;",
+        "                    doneP = abs(lumaEndP) >= gradientScaled;",
+        "                    if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P11;",
+        "                    if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P11;",
+        "                    doneNP = (!doneN) || (!doneP);",
+        "                    if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P11;",
+        "                    if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P11;",
+        "/*--------------------------------------------------------------------------*/",
+        "                    #if (FXAA_QUALITY_PS > 12)",
+        "                    if(doneNP) {",
+        "                        if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));",
+        "                        if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));",
+        "                        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;",
+        "                        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;",
+        "                        doneN = abs(lumaEndN) >= gradientScaled;",
+        "                        doneP = abs(lumaEndP) >= gradientScaled;",
+        "                        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P12;",
+        "                        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P12;",
+        "                        doneNP = (!doneN) || (!doneP);",
+        "                        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P12;",
+        "                        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P12;",
+        "/*--------------------------------------------------------------------------*/",
+        "                    }",
+        "                    #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "                }",
+        "                #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "            }",
+        "            #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "        }",
+        "        #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "    }",
+        "    #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "                        }",
+        "                        #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "                    }",
+        "                    #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "                }",
+        "                #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "            }",
+        "            #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "        }",
+        "        #endif",
+        "/*--------------------------------------------------------------------------*/",
+        "    }",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat dstN = posM.x - posN.x;",
+        "    FxaaFloat dstP = posP.x - posM.x;",
+        "    if(!horzSpan) dstN = posM.y - posN.y;",
+        "    if(!horzSpan) dstP = posP.y - posM.y;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaBool goodSpanN = (lumaEndN < 0.0) != lumaMLTZero;",
+        "    FxaaFloat spanLength = (dstP + dstN);",
+        "    FxaaBool goodSpanP = (lumaEndP < 0.0) != lumaMLTZero;",
+        "    FxaaFloat spanLengthRcp = 1.0/spanLength;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaBool directionN = dstN < dstP;",
+        "    FxaaFloat dst = min(dstN, dstP);",
+        "    FxaaBool goodSpan = directionN ? goodSpanN : goodSpanP;",
+        "    FxaaFloat subpixG = subpixF * subpixF;",
+        "    FxaaFloat pixelOffset = (dst * (-spanLengthRcp)) + 0.5;",
+        "    FxaaFloat subpixH = subpixG * fxaaQualitySubpix;",
+        "/*--------------------------------------------------------------------------*/",
+        "    FxaaFloat pixelOffsetGood = goodSpan ? pixelOffset : 0.0;",
+        "    FxaaFloat pixelOffsetSubpix = max(pixelOffsetGood, subpixH);",
+        "    if(!horzSpan) posM.x += pixelOffsetSubpix * lengthSign;",
+        "    if( horzSpan) posM.y += pixelOffsetSubpix * lengthSign;",
+        "    #if (FXAA_DISCARD == 1)",
+        "        return FxaaTexTop(tex, posM);",
+        "    #else",
+        "        return FxaaFloat4(FxaaTexTop(tex, posM).xyz, lumaM);",
+        "    #endif",
+        "}",
+        "/*==========================================================================*/",
+        "#endif",
+        "",
+        "void main() {",
+        "  gl_FragColor = FxaaPixelShader(",
+        "    vUv,",
+        "    vec4(0.0),",
+        "    tDiffuse,",
+        "    tDiffuse,",
+        "    tDiffuse,",
+        "    resolution,",
+        "    vec4(0.0),",
+        "    vec4(0.0),",
+        "    vec4(0.0),",
+        "    0.75,",
+        "    0.166,",
+        "    0.0833,",
+        "    0.0,",
+        "    0.0,",
+        "    0.0,",
+        "    vec4(0.0)",
+        "  );",
+        "",
+        "  // TODO avoid querying texture twice for same texel",
+        "  gl_FragColor.a = texture2D(tDiffuse, vUv).a;",
+        "}"
+	].join("\n")
 
 };

examples/webgl_postprocessing_fxaa.html

@@ -0,0 +1,99 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<title>three.js webgl - postprocessing - FXAA 3.11</title>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
+		<style>
+			body {
+				color: #61443e;
+				font-family:Monospace;
+				font-size:13px;
+				text-align:center;
+
+				/* background-color: #bfd1e5; */
+				background-color: #ffffff;
+				margin: 0px;
+				overflow: hidden;
+			}
+
+			a {	color: #a06851;	}
+
+			canvas {
+				margin: 20px;
+				margin-top: 40px;
+			}
+
+		</style>
+	</head>
+	<body>
+
+        <div id="info">
+            <p><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - FXAA example </p>
+            <p>original image (left) - FXAA 3.11 post-processing antialiasing (right)</p>
+			<p>Image source: <a href="https://github.com/mattdesl/glsl-fxaa" target="_blank" rel="noopener">glsl-fxaa by mattdesl</a></p>
+        </div>
+
+		<div id="container"></div>
+
+
+		<script src="../build/three.js"></script>
+		<script src="js/shaders/FXAAShader.js"></script>
+
+		<script src="js/Detector.js"></script>
+
+		<script>
+
+			( function closure() {
+
+				'use strict';
+
+				if ( ! Detector.webgl ) {
+					Detector.addGetWebGLMessage();
+				}
+
+				var loader = new THREE.TextureLoader();
+				loader.load( "textures/fxaa_scene.png", function onLoad( texture ) {
+					var image = texture.image;
+					texture.minFilter = THREE.LinearFilter;
+					texture.magFilter = THREE.LinearFilter;
+
+					var fxaaMaterial = new THREE.ShaderMaterial( THREE.FXAAShader );
+					fxaaMaterial.uniforms.tDiffuse.value = texture;
+					fxaaMaterial.uniforms.resolution.value.x = 1 / image.naturalWidth;
+					fxaaMaterial.uniforms.resolution.value.y = 1 / image.naturalHeight;
+
+					var basicMaterial = new THREE.MeshBasicMaterial( { map: texture } );
+
+					var plane = new THREE.PlaneBufferGeometry( 1, 1 );
+
+					var quad1 = new THREE.Mesh( plane, basicMaterial );
+					var quad2 = new THREE.Mesh( plane, fxaaMaterial );
+					var scene1 = new THREE.Scene();
+					var scene2 = new THREE.Scene();
+					scene1.add( quad1 );
+					scene2.add( quad2 );
+
+					var camera = new THREE.OrthographicCamera( -0.5, 0.5, 0.5, -0.5, -0.5, 0.5 );
+
+					var container = document.getElementById( 'container' );
+
+
+					var renderer1 = new THREE.WebGLRenderer();
+					renderer1.setPixelRatio( window.devicePixelRatio );
+					renderer1.setSize( image.naturalWidth, image.naturalHeight );
+					container.appendChild( renderer1.domElement );
+
+					var renderer2 = new THREE.WebGLRenderer();
+					renderer2.setPixelRatio( window.devicePixelRatio );
+					renderer2.setSize( image.naturalWidth, image.naturalHeight );
+					container.appendChild( renderer2.domElement );
+
+					renderer1.render( scene1, camera );
+					renderer2.render( scene2, camera );
+				});
+			})();
+
+		</script>
+	</body>
+</html>