Changes for implementation of improved shadow rendering.

jme3-core/src/main/java/com/jme3/light/Light.java

@@ -117,8 +117,8 @@ public int getId(){
      */
     protected String name;
 
-    boolean frustumCheckNeeded = true;
-    boolean intersectsFrustum  = false;
+    public boolean frustumCheckNeeded = true;
+    public boolean intersectsFrustum  = false;
 
     protected Light() {
     }

jme3-core/src/main/java/com/jme3/renderer/opengl/GL3.java

@@ -58,6 +58,7 @@ public interface GL3 extends GL2 {
     public void glBindFragDataLocation(int param1, int param2, String param3); /// GL3+
     public void glBindVertexArray(int param1); /// GL3+
     public void glDeleteVertexArrays(IntBuffer arrays); /// GL3+
+    public void glFramebufferTextureLayer(int param1, int param2, int param3, int param4, int param5); /// GL3+
     public void glGenVertexArrays(IntBuffer param1); /// GL3+
     public String glGetString(int param1, int param2); /// GL3+
 }

jme3-core/src/main/java/com/jme3/renderer/opengl/GLDebugDesktop.java

@@ -94,4 +94,10 @@ public void glPatchParameter(int count) {
         gl4.glPatchParameter(count);
         checkError();
     }
+
+    @Override
+    public void glFramebufferTextureLayer(int param1, int param2, int param3, int param4, int param5) {
+        gl3.glFramebufferTextureLayer(param1, param2, param3, param4, param5);
+        checkError();
+    }
 }

jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java

@@ -1438,11 +1438,19 @@ public void updateRenderTexture(FrameBuffer fb, RenderBuffer rb) {
             setupTextureParams(0, tex);
         }
 
-        glfbo.glFramebufferTexture2DEXT(GLFbo.GL_FRAMEBUFFER_EXT,
-                convertAttachmentSlot(rb.getSlot()),
-                convertTextureType(tex.getType(), image.getMultiSamples(), rb.getFace()),
-                image.getId(),
-                0);
+        if (rb.getLayer() < 0){
+            glfbo.glFramebufferTexture2DEXT(GLFbo.GL_FRAMEBUFFER_EXT,
+                    convertAttachmentSlot(rb.getSlot()),
+                    convertTextureType(tex.getType(), image.getMultiSamples(), rb.getFace()),
+                    image.getId(),
+                    0);
+        } else {
+            gl3.glFramebufferTextureLayer(GLFbo.GL_FRAMEBUFFER_EXT, 
+                    convertAttachmentSlot(rb.getSlot()), 
+                    image.getId(), 
+                    0,
+                    rb.getLayer());
+        }
     }
 
     public void updateFrameBufferAttachment(FrameBuffer fb, RenderBuffer rb) {

jme3-core/src/main/java/com/jme3/shader/Glsl100ShaderGenerator.java

@@ -258,7 +258,7 @@ protected void generateNodeMainSection(StringBuilder source, ShaderNode shaderNo
         }
 
         for (ShaderNodeVariable var : shaderNode.getDefinition().getOutputs()) {
-            ShaderNodeVariable v = new ShaderNodeVariable(var.getType(), shaderNode.getName(), var.getName());
+            ShaderNodeVariable v = new ShaderNodeVariable(var.getType(), shaderNode.getName(), var.getName(), var.getMultiplicity());
             if (!declaredInputs.contains(shaderNode.getName() + "_" + var.getName())) {
                 if (!isVarying(info, v)) {
                     declareVariable(source, v);
@@ -397,6 +397,11 @@ protected void map(VariableMapping mapping, StringBuilder source) {
         source.append(mapping.getLeftVariable().getNameSpace());
         source.append("_");
         source.append(mapping.getLeftVariable().getName());
+        if (mapping.getLeftVariable().getMultiplicity() != null){
+            source.append("[");
+            source.append(mapping.getLeftVariable().getMultiplicity());
+            source.append("]");
+        }
 
         //left swizzle, the variable can't be declared and assigned on the same line. 
         if (mapping.getLeftSwizzling().length() > 0) {

jme3-core/src/main/java/com/jme3/shader/VarType.java

@@ -55,7 +55,7 @@ public enum VarType {
     TextureBuffer(false,true,"sampler1D|sampler1DShadow"),
     Texture2D(false,true,"sampler2D|sampler2DShadow"),
     Texture3D(false,true,"sampler3D"),
-    TextureArray(false,true,"sampler2DArray"),
+    TextureArray(false,true,"sampler2DArray|sampler2DArrayShadow"),
     TextureCubeMap(false,true,"samplerCube"),
     Int("int");
 

jme3-core/src/main/java/com/jme3/texture/FrameBuffer.java

@@ -97,6 +97,7 @@ public class RenderBuffer {
         int id = -1;
         int slot = SLOT_UNDEF;
         int face = -1;
+        int layer = -1;
 
         /**
          * @return The image format of the render buffer.
@@ -160,6 +161,10 @@ public String toString(){
                 return "BufferTarget[format=" + format + "]";
             }
         }
+
+        public int getLayer() {
+            return this.layer;
+        }
     }
 
     /**
@@ -324,6 +329,19 @@ public void setColorTexture(Texture2D tex){
         addColorTexture(tex);
     }
 
+    /**
+     * Set the color texture array to use for this framebuffer.
+     * This automatically clears all existing textures added previously
+     * with {@link FrameBuffer#addColorTexture } and adds this texture as the
+     * only target.
+     * 
+     * @param tex The color texture array to set.
+     */
+    public void setColorTexture(TextureArray tex, int layer){
+        clearColorTargets();
+        addColorTexture(tex, layer);
+    }
+
     /**
      * Set the color texture to use for this framebuffer.
      * This automatically clears all existing textures added previously
@@ -369,6 +387,31 @@ public void addColorTexture(Texture2D tex) {
         colorBufs.add(colorBuf);
     }
 
+    /**
+     * Add a color texture array to use for this framebuffer.
+     * If MRT is enabled, then each subsequently added texture can be
+     * rendered to through a shader that writes to the array <code>gl_FragData</code>.
+     * If MRT is not enabled, then the index set with {@link FrameBuffer#setTargetIndex(int) }
+     * is rendered to by the shader.
+     * 
+     * @param tex The texture array to add.
+     */
+    public void addColorTexture(TextureArray tex, int layer) {
+        if (id != -1)
+            throw new UnsupportedOperationException("FrameBuffer already initialized.");
+
+        Image img = tex.getImage();
+        checkSetTexture(tex, false);
+
+        RenderBuffer colorBuf = new RenderBuffer();
+        colorBuf.slot = colorBufs.size();
+        colorBuf.tex = tex;
+        colorBuf.format = img.getFormat();
+        colorBuf.layer = layer;
+
+        colorBufs.add(colorBuf);
+    }
+
      /**
      * Add a color texture to use for this framebuffer.
      * If MRT is enabled, then each subsequently added texture can be
@@ -412,7 +455,20 @@ public void setDepthTexture(Texture2D tex){
         depthBuf.tex = tex;
         depthBuf.format = img.getFormat();
     }
+    public void setDepthTexture(TextureArray tex, int layer){
+        if (id != -1)
+            throw new UnsupportedOperationException("FrameBuffer already initialized.");
 
+        Image img = tex.getImage();
+        checkSetTexture(tex, true);
+
+        depthBuf = new RenderBuffer();
+        depthBuf.slot = img.getFormat().isDepthStencilFormat() ?  SLOT_DEPTH_STENCIL : SLOT_DEPTH;
+        depthBuf.tex = tex;
+        depthBuf.format = img.getFormat();
+        depthBuf.layer = layer;
+    }
+
     /**
      * @return The number of color buffers attached to this texture. 
      */

jme3-core/src/plugins/java/com/jme3/material/plugins/ShaderNodeLoaderDelegate.java

@@ -752,6 +752,7 @@ public VariableMapping readInputMapping(Statement statement1) throws IOException
             }
             right.setNameSpace(node.getName());
             right.setType(var.getType());
+            right.setMultiplicity(var.getMultiplicity());
             mapping.setRightVariable(right);            
             storeVaryings(node, mapping.getRightVariable());
 

jme3-jogl/src/main/java/com/jme3/renderer/jogl/JoglGL.java

@@ -600,4 +600,9 @@ public void glDeleteVertexArrays(IntBuffer arrays) {
         checkLimit(arrays);
         GLContext.getCurrentGL().getGL2ES3().glDeleteVertexArrays(arrays.limit(), arrays);
     }
+
+    @Override
+    public void glFramebufferTextureLayer(int param1, int param2, int param3, int param4, int param5) {
+        GLContext.getCurrentGL().getGL3().glFramebufferTextureLayer(param1, param2, param3, param4, param5);
+    }
 }

jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/LwjglGL.java

@@ -457,4 +457,9 @@ public void glDeleteVertexArrays(IntBuffer arrays) {
         checkLimit(arrays);
         ARBVertexArrayObject.glDeleteVertexArrays(arrays);
     }
+
+    @Override
+    public void glFramebufferTextureLayer(int param1, int param2, int param3, int param4, int param5) {
+        GL30.glFramebufferTextureLayer(param1, param2, param3, param4, param5);
+    }
 }

jme3-lwjgl3/src/main/java/com/jme3/renderer/lwjgl/LwjglGL.java

@@ -486,4 +486,9 @@ public void glDeleteVertexArrays(IntBuffer arrays) {
         checkLimit(arrays);
         ARBVertexArrayObject.glDeleteVertexArrays(arrays);
     }
+
+    @Override
+    public void glFramebufferTextureLayer(int param1, int param2, int param3, int param4, int param5) {
+        GL30.glFramebufferTextureLayer(param1, param2, param3, param4, param5);
+    }
 }