SSAOFilter can now be multi sampled

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7007 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core-data/Common/MatDefs/SSAO/ssaoBlur.frag

@@ -12,14 +12,15 @@ varying vec2 texCoord;
 
 vec4 getColor(vec4 color){
 
-    if(m_UseOnlyAo){
+    
+    #ifdef USE_ONLY_AO
         return color;
-    }
-    if(m_UseAo){
+    #endif
+    #ifdef USE_AO
         return texture2D(m_Texture,texCoord)* color;
-    }else{
+    #endif
+    
     return texture2D(m_Texture,texCoord);
-}
 
 }
 

engine/src/core-data/Common/MatDefs/SSAO/ssaoBlur.j3md

@@ -1,6 +1,8 @@
 MaterialDef SSAOBlur {
 
     MaterialParameters {       
+        Int NumSamples
+        Int NumSamplesDepth
         Texture2D Texture
         Texture2D SSAOMap
         Texture2D DepthTexture
@@ -11,21 +13,23 @@ MaterialDef SSAOBlur {
         Float YScale
     }
 
-//    Technique {
-//        VertexShader GLSL150:   Common/MatDefs/Post/Post15.vert
-//        FragmentShader GLSL150: Common/MatDefs/SSAO/ssaoBlur15.frag
-//
-//        WorldParameters {
-//            WorldViewProjectionMatrix
-//            WorldViewMatrix
-//            Resolution
-//        }
-//
-//        Defines {
-//            RESOLVE_MS : NumSamples
-//            RESOLVE_DEPTH_MS : NumSamplesDepth
-//        }
-//    }
+    Technique {
+        VertexShader GLSL150:   Common/MatDefs/Post/Post15.vert
+        FragmentShader GLSL150: Common/MatDefs/SSAO/ssaoBlur15.frag
+
+        WorldParameters {
+            WorldViewProjectionMatrix
+            WorldViewMatrix
+            Resolution
+        }
+
+        Defines {
+            USE_AO : UseAo
+            USE_ONLY_AO : UseOnlyAo
+            RESOLVE_MS : NumSamples
+            RESOLVE_DEPTH_MS : NumSamplesDepth
+        }
+    }
 
     Technique {
         VertexShader GLSL120:   Common/MatDefs/Post/Post.vert
@@ -37,6 +41,13 @@ MaterialDef SSAOBlur {
             Resolution
 
         }
+        
+        Defines {
+            USE_AO : UseAo
+            USE_ONLY_AO : UseOnlyAo
+            RESOLVE_MS : NumSamples
+            RESOLVE_DEPTH_MS : NumSamplesDepth
+        }
     }
 
 

engine/src/core-data/Common/MatDefs/SSAO/ssaoBlur15.frag

@@ -0,0 +1,160 @@
+#import "Common/ShaderLib/MultiSample.glsllib"
+
+uniform COLORTEXTURE m_Texture;
+uniform DEPTHTEXTURE m_DepthTexture;
+uniform sampler2D m_SSAOMap;
+uniform vec2 g_Resolution;
+uniform bool m_UseOnlyAo;
+uniform bool m_UseAo;
+uniform float m_XScale;
+uniform float m_YScale;
+uniform vec2 m_FrustumNearFar;
+
+varying vec2 texCoord;
+
+vec4 getResult(vec4 color){
+ 
+    #ifdef USE_ONLY_AO
+        return color;
+    #endif
+    #ifdef USE_AO
+        return getColor(m_Texture,texCoord)* color;
+    #endif
+    
+    return getColor(m_Texture,texCoord);
+
+}
+
+float readDepth(in vec2 uv){
+    float depthv =fetchTextureSample(m_DepthTexture,uv,0).r;
+    return (2.0 * m_FrustumNearFar.x) / (m_FrustumNearFar.y + m_FrustumNearFar.x - depthv* (m_FrustumNearFar.y-m_FrustumNearFar.x));
+}
+
+ const float epsilon = 0.005;
+
+
+/*
+    const int kernelSize=7;
+   
+    vec4 bilateralFilter() {
+        vec4 color = vec4(0.0);
+
+        vec2 sample;
+        float sum = 0.0;
+        float coefZ;
+        float Zp = readDepth(texCoord);
+
+        for(int i = -(kernelSize-1); i <= (kernelSize-1); i+=2) {
+            for(int j = -(kernelSize-1); j <= (kernelSize-1); j+=2) {
+                  sample = texCoord + vec2(i,j) / g_Resolution;           
+                float zTmp =readDepth(sample);
+                coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+                sum += coefZ;
+
+                color += coefZ * texture2D(m_SSAOMap,sample);
+             
+            }
+        }
+
+        return color / sum;
+    }
+*/
+
+    vec4 convolutionFilter(){
+           vec4 sum = vec4(0.0);
+
+            float x = texCoord.x;
+            float y = texCoord.y;
+
+            float xScale = m_XScale;
+            float yScale = m_YScale;
+       
+            float zsum = 1.0;
+        float Zp =readDepth(texCoord);
+
+
+        vec2 sample = vec2(x - 2.0 * xScale, y - 2.0 * yScale);           
+        float zTmp =readDepth(sample);
+        float coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x - 0.0 * xScale, y - 2.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x + 2.0 * xScale, y - 2.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x - 1.0 * xScale, y - 1.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x + 1.0 * xScale, y - 1.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+  
+        sample = vec2(x - 2.0 * xScale, y - 0.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x + 2.0 * xScale, y - 0.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x - 1.0 * xScale, y + 1.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+   
+        sample = vec2(x + 1.0 * xScale, y + 1.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x - 2.0 * xScale, y + 2.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+  
+        sample = vec2(x - 0.0 * xScale, y + 2.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+        sample = vec2(x + 2.0 * xScale, y + 2.0 * yScale);           
+        zTmp =readDepth(sample);
+        coefZ = 1.0 / (epsilon + abs(Zp - zTmp));               
+        zsum += coefZ;
+        sum += coefZ* texture2D( m_SSAOMap, sample);
+
+
+        return  sum / zsum;
+    }
+
+
+    void main(){
+        //  float depth =texture2D(m_DepthTexture,uv).r;
+
+       gl_FragColor=getResult(convolutionFilter());
+      // gl_FragColor=getResult(bilateralFilter());
+      //  gl_FragColor=getColor(m_SSAOMap,texCoord);
+
+    }