Updated builds.

build/three.js

@@ -15115,7 +15115,7 @@
 
 	MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
 
-	var vsm_frag = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";
+	var vsm_frag = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\nuniform float samples;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";
 
 	var vsm_vert = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";
 
@@ -15138,10 +15138,6 @@
 			2: DoubleSide
 		};
 		const shadowMaterialVertical = new ShaderMaterial({
-			defines: {
-				SAMPLE_RATE: 2.0 / 8.0,
-				HALF_SAMPLE_RATE: 1.0 / 8.0
-			},
 			uniforms: {
 				shadow_pass: {
 					value: null
@@ -15151,6 +15147,9 @@
 				},
 				radius: {
 					value: 4.0
+				},
+				samples: {
+					value: 8.0
 				}
 			},
 			vertexShader: vsm_vert,
@@ -15283,6 +15282,7 @@
 			shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
 			shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
 			shadowMaterialVertical.uniforms.radius.value = shadow.radius;
+			shadowMaterialVertical.uniforms.samples.value = shadow.blurSamples;
 
 			_renderer.setRenderTarget(shadow.mapPass);
 
@@ -15294,6 +15294,7 @@
 			shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
 			shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
 			shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;
+			shadowMaterialHorizontal.uniforms.samples.value = shadow.blurSamples;
 
 			_renderer.setRenderTarget(shadow.map);
 
@@ -28477,6 +28478,7 @@
 			this.bias = 0;
 			this.normalBias = 0;
 			this.radius = 1;
+			this.blurSamples = 8;
 			this.mapSize = new Vector2(512, 512);
 			this.map = null;
 			this.mapPass = null;

build/three.module.js

@@ -20021,7 +20021,7 @@ class MeshDistanceMaterial extends Material {
 
 MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
 
-var vsm_frag = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";
+var vsm_frag = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\nuniform float samples;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";
 
 var vsm_vert = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";
 
@@ -20045,15 +20045,11 @@ function WebGLShadowMap( _renderer, _objects, _capabilities ) {
 
 	const shadowMaterialVertical = new ShaderMaterial( {
 
-		defines: {
-			SAMPLE_RATE: 2.0 / 8.0,
-			HALF_SAMPLE_RATE: 1.0 / 8.0
-		},
-
 		uniforms: {
 			shadow_pass: { value: null },
 			resolution: { value: new Vector2() },
-			radius: { value: 4.0 }
+			radius: { value: 4.0 },
+			samples: { value: 8.0 }
 		},
 
 		vertexShader: vsm_vert,
@@ -20225,6 +20221,7 @@ function WebGLShadowMap( _renderer, _objects, _capabilities ) {
 		shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
 		shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
 		shadowMaterialVertical.uniforms.radius.value = shadow.radius;
+		shadowMaterialVertical.uniforms.samples.value = shadow.blurSamples;
 		_renderer.setRenderTarget( shadow.mapPass );
 		_renderer.clear();
 		_renderer.renderBufferDirect( camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null );
@@ -20234,6 +20231,7 @@ function WebGLShadowMap( _renderer, _objects, _capabilities ) {
 		shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
 		shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
 		shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;
+		shadowMaterialHorizontal.uniforms.samples.value = shadow.blurSamples;
 		_renderer.setRenderTarget( shadow.map );
 		_renderer.clear();
 		_renderer.renderBufferDirect( camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null );
@@ -39131,6 +39129,7 @@ class LightShadow {
 		this.bias = 0;
 		this.normalBias = 0;
 		this.radius = 1;
+		this.blurSamples = 8;
 
 		this.mapSize = new Vector2( 512, 512 );