* Fixed syntax errors and crashes with shadow processor and filters

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7831 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM15.frag

@@ -1,4 +1,5 @@
-#extension GL_ARB_texture_gather : enable
+// Because gpu_shader5 is actually where those
+// gather functions are declared to work on shadowmaps
 #extension GL_ARB_gpu_shader5 : enable
 
 #ifdef HARDWARE_SHADOWS
@@ -82,7 +83,7 @@ float Shadow_DoBilinear_2x2(in SHADOWMAP tex, in vec4 projCoord){
         return 1.0;
 
     ivec2 texSize = textureSize(tex, 0);
-    #ifdef GL_ARB_texture_gather
+    #ifdef GL_ARB_gpu_shader5
         vec4 coord = vec4(projCoord.xyz / projCoord.w,0.0);
         vec4 gather = SHADOWGATHER(tex, coord);
     #else

engine/src/core-data/Common/ShaderLib/MultiSample.glsllib

@@ -1,4 +1,5 @@
 #extension GL_ARB_texture_multisample : enable
+
 uniform int m_NumSamples;
 uniform int m_NumSamplesDepth;
 
@@ -14,6 +15,8 @@ uniform int m_NumSamplesDepth;
     #define DEPTHTEXTURE sampler2D
 #endif
 
+// NOTE: Only define multisample functions if multisample is being used!
+#ifdef GL_ARB_texture_multisample
 vec4 textureFetch(in sampler2DMS tex,in vec2 texC, in int numSamples){
       ivec2 iTexC = ivec2(texC * textureSize(tex));
       vec4 color = vec4(0.0);
@@ -23,36 +26,37 @@ vec4 textureFetch(in sampler2DMS tex,in vec2 texC, in int numSamples){
       return color / numSamples;
 }
 
-vec4 fetchTextureSample(in sampler2D tex,in vec2 texC,in int sample){
-    return texture2D(tex,texC);
-}
-
 vec4 fetchTextureSample(in sampler2DMS tex,in vec2 texC,in int sample){
     ivec2 iTexC = ivec2(texC * textureSize(tex));
     return texelFetch(tex, iTexC, sample);
 }
 
-vec4 getColor(in sampler2D tex, in vec2 texC){
-    return texture2D(tex,texC);
-}
-
 vec4 getColor(in sampler2DMS tex, in vec2 texC){
       return textureFetch(tex, texC, m_NumSamples);
 }
 
-vec4 getColorSingle(in sampler2D tex, in vec2 texC){
-    return texture2D(tex, texC);
-}
-
 vec4 getColorSingle(in sampler2DMS tex, in vec2 texC){
     ivec2 iTexC = ivec2(texC * textureSize(tex));
     return texelFetch(tex, iTexC, 0);
 }
 
-vec4 getDepth(in sampler2D tex,in vec2 texC){
-    return texture2D(tex,texC);
-}
-
 vec4 getDepth(in sampler2DMS tex,in vec2 texC){
       return textureFetch(tex,texC,m_NumSamplesDepth);
 }
+#endif
+
+vec4 fetchTextureSample(in sampler2D tex,in vec2 texC,in int sample){
+    return texture2D(tex,texC);
+}
+
+vec4 getColor(in sampler2D tex, in vec2 texC){
+    return texture2D(tex,texC);
+}
+
+vec4 getColorSingle(in sampler2D tex, in vec2 texC){
+    return texture2D(tex, texC);
+}
+
+vec4 getDepth(in sampler2D tex,in vec2 texC){
+    return texture2D(tex,texC);
+}

engine/src/core/com/jme3/post/FilterPostProcessor.java

@@ -40,7 +40,6 @@ import com.jme3.export.InputCapsule;
 import com.jme3.export.OutputCapsule;
 import com.jme3.export.Savable;
 import com.jme3.material.Material;
-import com.jme3.material.RenderState;
 import com.jme3.renderer.Camera;
 import com.jme3.renderer.Caps;
 import com.jme3.renderer.RenderManager;
@@ -140,7 +139,6 @@ public class FilterPostProcessor implements SceneProcessor, Savable {
 
         Camera cam = vp.getCamera();
 
-
         //save view port diensions
         left = cam.getViewPortLeft();
         right = cam.getViewPortRight();
@@ -150,7 +148,6 @@ public class FilterPostProcessor implements SceneProcessor, Savable {
         originalHeight = cam.getHeight();
         //first call to reshape
         reshape(vp, cam.getWidth(), cam.getHeight());
-
     }
 
     /**