- fixed: If we want to cache texture binding state we have to reset it in all places where a texture becomes unbound.

src/gl/system/gl_wipe.cpp

@@ -240,6 +240,7 @@ void OpenGLFrameBuffer::WipeCleanup()
 		delete wipeendscreen;
 		wipeendscreen = NULL;
 	}
+	FMaterial::ClearLastTexture();
 }
 
 //==========================================================================

src/gl/textures/gl_hwtexture.cpp

@@ -403,6 +403,7 @@ void FHardwareTexture::UnbindAll()
 	{
 		Unbind(texunit);
 	}
+	FMaterial::ClearLastTexture();
 }
 
 //===========================================================================

src/gl/textures/gl_material.cpp

@@ -753,6 +753,7 @@ void FMaterial::BindToFrameBuffer()
 		// must create the hardware texture first
 		mBaseLayer->Bind(0, 0, 0, false, NULL);
 		FHardwareTexture::Unbind(0);
+		ClearLastTexture();
 	}
 	mBaseLayer->mHwTexture->BindToFrameBuffer();
 }
@@ -809,3 +810,7 @@ void FMaterial::FlushAll()
 	}
 }
 
+void FMaterial::ClearLastTexture()
+{
+	last = NULL;
+}

src/gl/textures/gl_material.h

@@ -253,6 +253,7 @@ public:
 	static void FlushAll();
 	static FMaterial *ValidateTexture(FTexture * tex, bool expand);
 	static FMaterial *ValidateTexture(FTextureID no, bool expand, bool trans);
+	static void ClearLastTexture();
 
 };