Multi pass

apps/LoopThroughWithOpenGLCompositing/gl/pipeline/RenderPassDescriptor.h

@@ -15,6 +15,7 @@ enum class RenderPassKind
 
 enum class RenderPassOutputTarget
 {
+	Temporary,
 	LayerTemp,
 	Composite
 };
@@ -29,6 +30,7 @@ struct RenderPassDescriptor
 	std::string shaderId;
 	GLuint sourceTexture = 0;
 	GLuint sourceFramebuffer = 0;
+	GLuint destinationTexture = 0;
 	GLuint destinationFramebuffer = 0;
 	OpenGLRenderer::LayerProgram* layerProgram = nullptr;
 	OpenGLRenderer::LayerProgram::PassProgram* passProgram = nullptr;