Added support for multiple colour buffers into osg::CameraNode/osgUtil::CullVisitor

include/osg/CameraNode

@@ -214,9 +214,17 @@ class OSG_EXPORT CameraNode : public Transform, public CullSettings
 
         enum BufferComponent
         {
-            COLOR_BUFFER,
             DEPTH_BUFFER,
-            STENCIL_BUFFER
+            STENCIL_BUFFER,
+            COLOR_BUFFER,
+            COLOR_BUFFER0 = COLOR_BUFFER,
+            COLOR_BUFFER1 = COLOR_BUFFER+1,
+            COLOR_BUFFER2 = COLOR_BUFFER+2,
+            COLOR_BUFFER3 = COLOR_BUFFER+3,
+            COLOR_BUFFER4 = COLOR_BUFFER+4,
+            COLOR_BUFFER5 = COLOR_BUFFER+5,
+            COLOR_BUFFER6 = COLOR_BUFFER+6,
+            COLOR_BUFFER7 = COLOR_BUFFER+7            
         };
 
         void attach(BufferComponent buffer, GLenum internalFormat);

src/osgUtil/CullVisitor.cpp

@@ -1198,7 +1198,7 @@ void CullVisitor::apply(osg::CameraNode& camera)
                         }
                         default:
                         {
-                            fbo->setAttachment(GL_COLOR_ATTACHMENT0_EXT, osg::FrameBufferAttachment(attachment));
+                            fbo->setAttachment(GL_COLOR_ATTACHMENT0_EXT+(buffer-osg::CameraNode::COLOR_BUFFER0), osg::FrameBufferAttachment(attachment));
                             colorAttached = true;
                             break;
                         }