-By assigning the shader to the FrameBufferObject Controller you can now...

-By assigning the shader to the FrameBufferObject Controller you can now assign the FragmentData Targets in a different order.

include/ACGL/OpenGL/Controller/FrameBufferObjectControl.hh

@@ -14,6 +14,9 @@
 
 #include <ACGL/OpenGL/Objects/Texture.hh>
 #include <ACGL/OpenGL/Objects/RenderBuffer.hh>
+#include <ACGL/OpenGL/Objects/ShaderProgram.hh>
+
+#include <vector>
 
 namespace ACGL{
 namespace OpenGL{
@@ -26,7 +29,8 @@ class FrameBufferObjectControl : public Resource::BasicCreateController<FrameBuf
 public:
     FrameBufferObjectControl(void)
     :   mColorAttachments(),
-        mDepthAttachment()
+        mDepthAttachment(),
+        mpShaderProgram()
     {
         mDepthAttachment.name         = "";
         mDepthAttachment.texture      = ConstSharedTexture();
@@ -40,6 +44,7 @@ public:
 public:
     inline FrameBufferObjectControl& depthTexture      (const ConstSharedTexture& _pDepthTexture)           { mDepthAttachment.texture = _pDepthTexture;           return *this; }
     inline FrameBufferObjectControl& depthRenderBuffer (const ConstSharedRenderBuffer& _pDepthRenderBuffer) { mDepthAttachment.renderBuffer = _pDepthRenderBuffer; return *this; }
+    inline FrameBufferObjectControl& shaderProgram     (const ConstSharedShaderProgram& _shaderProgram)     { mpShaderProgram = _shaderProgram; return *this; }
 
     inline FrameBufferObjectControl& colorTexture(const std::string& _name, const ConstSharedTexture& _texture)
     {
@@ -66,6 +71,7 @@ public:
 protected:
     FrameBufferObject::AttachmentVec mColorAttachments;
     FrameBufferObject::Attachment    mDepthAttachment;
+    ConstSharedShaderProgram         mpShaderProgram;
 };
 
 } // OpenGL

src/ACGL/OpenGL/Controller/FrameBufferObjectControl.cc

@@ -7,17 +7,42 @@
 
 using namespace ACGL::OpenGL;
 
+//    inline GLint getFragmentDataLocation (const std::string& _nameInShader) const { return glGetFragDataLocation(mContext, _nameInShader.c_str()); }
+
+
 SharedFrameBufferObject FrameBufferObjectControl::create(void)
 {
     SharedFrameBufferObject frameBuffer(new FrameBufferObject());
     frameBuffer->bind();
 
-    for(FrameBufferObject::AttachmentVec::size_type i = 0; i < mColorAttachments.size(); ++i)
+    if(mpShaderProgram)
+    {
+        std::vector<int_t> assignmentOrder(mColorAttachments.size());
+
+        for(FrameBufferObject::AttachmentVec::size_type i = 0; i < mColorAttachments.size(); ++i)
+        {
+            GLint location = mpShaderProgram->getFragmentDataLocation(mColorAttachments[i].name);
+            assignmentOrder[location] = i;
+        }
+
+        for(std::vector<int_t>::size_type j = 0; j < assignmentOrder.size(); ++j)
+        {
+            if(mColorAttachments[assignmentOrder[j]].texture)
+                frameBuffer->attachColorTexture(mColorAttachments[assignmentOrder[j]].name, mColorAttachments[assignmentOrder[j]].texture);
+            else if(mColorAttachments[assignmentOrder[j]].renderBuffer)
+                frameBuffer->attachColorRenderBuffer(mColorAttachments[assignmentOrder[j]].name, mColorAttachments[assignmentOrder[j]].renderBuffer);
+        }
+
+    }
+    else
     {
-        if(mColorAttachments[i].texture)
-            frameBuffer->attachColorTexture(mColorAttachments[i].name, mColorAttachments[i].texture);
-        else if(mColorAttachments[i].renderBuffer)
-            frameBuffer->attachColorRenderBuffer(mColorAttachments[i].name, mColorAttachments[i].renderBuffer);
+        for(FrameBufferObject::AttachmentVec::size_type i = 0; i < mColorAttachments.size(); ++i)
+        {
+            if(mColorAttachments[i].texture)
+                frameBuffer->attachColorTexture(mColorAttachments[i].name, mColorAttachments[i].texture);
+            else if(mColorAttachments[i].renderBuffer)
+                frameBuffer->attachColorRenderBuffer(mColorAttachments[i].name, mColorAttachments[i].renderBuffer);
+        }
     }
 
     if(mDepthAttachment.texture)