Custom ViewRender

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If ever you need to work with CViewRender, say for applying a post-process effect, this is a way of deriving it so that you keep your own code contained and do not have to edit Valve's code.

Create SDKViewRender.cpp and insert the following:

#include "cbase.h"
#include "viewrender.h"
#include "view_scene.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"

class C_SDKViewRender : public CViewRender {
	DECLARE_CLASS(C_SDKViewRender, CViewRender);

	virtual void RenderView(const CViewSetup &view, int nClearFlags, int whatToDraw);

static C_SDKViewRender g_ViewRender;


C_SDKViewRender::C_SDKViewRender() {
	if (!view) {
		view = (IViewRender *)&g_ViewRender;

void C_SDKViewRender::RenderView(const CViewSetup &view, int nClearFlags, int whatToDraw) {
	BaseClass::RenderView(view, nClearFlags, whatToDraw);
	//Your code could go here.