- fix null drawers

- slightly better renderstyle drawer selection

src/rendering/polyrenderer/backend/poly_renderstate.h

@@ -10,7 +10,7 @@
 #include "hwrenderer/scene/hw_renderstate.h"
 #include "hwrenderer/textures/hw_material.h"
 
-class PolyRenderPassSetup;
+struct HWViewpointUniforms;
 
 class PolyRenderState : public FRenderState
 {
@@ -45,6 +45,8 @@ public:
 private:
 	void Apply();
 
+	HWViewpointUniforms *mViewpointUniforms = nullptr;
+
 	bool mDepthClamp = true;
 	PolyDrawArgs args;
 };