- fixed: hwrenderer materials were nullptr checked but the pointers were not always properly initialized

src/common/textures/hw_material.h

@@ -47,7 +47,7 @@ class FMaterial
 	bool TrimBorders(uint16_t *rect);
 
 public:
-	FTexture *tex;
+	FTexture *tex = nullptr;
 	FTexture *sourcetex;	// in case of redirection this is different from tex.
 	
 	FMaterial(FTexture *tex, bool forceexpand);

src/rendering/hwrenderer/scene/hw_renderstate.h

@@ -90,7 +90,7 @@ struct FStateVec4
 
 struct FMaterialState
 {
-	FMaterial *mMaterial;
+	FMaterial *mMaterial = nullptr;
 	int mClampMode;
 	int mTranslation;
 	int mOverrideShader;