diff --git a/rpcs3/Emu/GS/GL/GLGSRender.cpp b/rpcs3/Emu/GS/GL/GLGSRender.cpp
index 70c263493a..8ba1410e4c 100644
--- a/rpcs3/Emu/GS/GL/GLGSRender.cpp
+++ b/rpcs3/Emu/GS/GL/GLGSRender.cpp
@@ -581,7 +581,7 @@ void GLGSRender::WriteColourBufferD()
 	checkForGlError("glReadPixels(GL_RGBA, GL_UNSIGNED_INT_8_8_8_8)");
 }
 
-void GLGSRender::WriteBuffers()
+void GLGSRender::WriteColorBuffers()
 {
 	glPixelStorei(GL_PACK_ROW_LENGTH, 0);
 	glPixelStorei(GL_PACK_ALIGNMENT, 4);
@@ -641,7 +641,6 @@ void GLGSRender::OnInitThread()
 	InitProcTable();
 
 	glEnable(GL_TEXTURE_2D);
-	glEnable(GL_SCISSOR_TEST);
 
 #ifdef _WIN32
 	glSwapInterval(Ini.GSVSyncEnable.GetValue() ? 1 : 0);
@@ -773,8 +772,10 @@ void GLGSRender::ExecCMD()
 	}
 		
 	m_fbo.Bind();
+
 	if(Ini.GSDumpDepthBuffer.GetValue())
 		WriteDepthBuffer();
+
 	static const GLenum draw_buffers[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2, GL_COLOR_ATTACHMENT3 };
 
 	switch(m_surface_colour_target)
@@ -813,8 +814,6 @@ void GLGSRender::ExecCMD()
 		checkForGlError("glColorMask");
 	}
 
-	//glFrontFace(m_front_face);
-
 	if(m_set_viewport_horizontal && m_set_viewport_vertical)
 	{
 		//glViewport(m_viewport_x, m_viewport_y, m_viewport_w, m_viewport_h);
@@ -859,6 +858,7 @@ void GLGSRender::ExecCMD()
 	Enable(m_set_blend, GL_BLEND);
 	Enable(m_set_logic_op, GL_LOGIC_OP);
 	Enable(m_set_cull_face_enable, GL_CULL_FACE);
+	//Enable(m_set_front_face, GL_FRONT_FACE); // glEnable : OpenGL error 0x0500
 	Enable(m_set_dither, GL_DITHER);
 	Enable(m_set_stencil_test, GL_STENCIL_TEST);
 	Enable(m_set_scissor_horizontal && m_set_scissor_vertical, GL_SCISSOR_TEST);
@@ -867,7 +867,7 @@ void GLGSRender::ExecCMD()
 	Enable(m_set_poly_offset_fill, GL_POLYGON_OFFSET_FILL);
 	Enable(m_set_poly_offset_line, GL_POLYGON_OFFSET_LINE);
 	Enable(m_set_poly_offset_point, GL_POLYGON_OFFSET_POINT);
-	//Enable(m_set_restart_index, GL_PRIMITIVE_RESTART); //Requires OpenGL 3.1+
+	//Enable(m_set_restart_index, GL_PRIMITIVE_RESTART); // Requires OpenGL 3.1+
 
 	if(m_set_clip_plane)
 	{
@@ -896,6 +896,12 @@ void GLGSRender::ExecCMD()
 		checkForGlError("glPolygonMode(Back)");
 	}
 
+	if (m_set_poly_offset_scale_factor && m_set_poly_offset_bias)
+	{
+		glPolygonOffset(m_set_poly_offset_scale_factor, m_set_poly_offset_bias);
+		checkForGlError("glPolygonOffset");
+	}
+
 	if (m_set_logic_op)
 	{
 		glLogicOp(m_logic_op);
@@ -907,6 +913,7 @@ void GLGSRender::ExecCMD()
 		glScissor(m_scissor_x, m_scissor_y, m_scissor_w, m_scissor_h);
 		checkForGlError("glScissor");
 	}
+
 	if(m_set_two_sided_stencil_test_enable)
 	{
 		if(m_set_stencil_fail && m_set_stencil_zfail && m_set_stencil_zpass)
@@ -1029,6 +1036,12 @@ void GLGSRender::ExecCMD()
 		checkForGlError("glCullFace");
 	}
 
+	if (m_set_front_face)
+	{
+		//glFrontFace(m_front_face); // glFrontFace : OpenGL error 0x0500
+		checkForGlError("glFrontFace");
+	}
+
 	if(m_set_alpha_func && m_set_alpha_ref)
 	{
 		glAlphaFunc(m_alpha_func, m_alpha_ref/255.0f);
@@ -1052,7 +1065,7 @@ void GLGSRender::ExecCMD()
 	if(m_set_restart_index)
 	{
 		ConLog.Warning("m_set_restart_index requires glPrimitiveRestartIndex()");
-		//glPrimitiveRestartIndex(m_restart_index); //Requires OpenGL 3.1+
+		//glPrimitiveRestartIndex(m_restart_index); // Requires OpenGL 3.1+
 		//checkForGlError("glPrimitiveRestartIndex");
 	}
 
@@ -1117,8 +1130,8 @@ void GLGSRender::ExecCMD()
 		DisableVertexData();
 	}
 
-	if(Ini.GSDumpColorBuffers.GetValue())
-		WriteBuffers();
+	if (Ini.GSDumpColorBuffers.GetValue())
+		WriteColorBuffers();
 }
 
 void GLGSRender::Flip()
diff --git a/rpcs3/Emu/GS/GL/GLGSRender.h b/rpcs3/Emu/GS/GL/GLGSRender.h
index 819d95ff1c..8839d578ea 100644
--- a/rpcs3/Emu/GS/GL/GLGSRender.h
+++ b/rpcs3/Emu/GS/GL/GLGSRender.h
@@ -827,11 +827,11 @@ private:
 	virtual void Close();
 	bool LoadProgram();
 	void WriteDepthBuffer();
+	void WriteColorBuffers();
 	void WriteColourBufferA();
 	void WriteColourBufferB();
 	void WriteColourBufferC();
 	void WriteColourBufferD();
-	void WriteBuffers();
 
 	void DrawObjects();
 
diff --git a/rpcs3/Emu/GS/RSXThread.h b/rpcs3/Emu/GS/RSXThread.h
index 6a4030a89c..1b2a675002 100644
--- a/rpcs3/Emu/GS/RSXThread.h
+++ b/rpcs3/Emu/GS/RSXThread.h
@@ -175,6 +175,11 @@ public:
 	bool m_set_poly_offset_line;
 	bool m_set_poly_offset_point;
 
+	bool m_set_poly_offset_scale_factor;
+	u32 m_poly_offset_scale_factor;
+	bool m_set_poly_offset_bias;
+	u32 m_poly_offset_bias;
+
 	bool m_set_restart_index;
 	u32 m_restart_index;
 
@@ -384,6 +389,7 @@ public:
 
 	u32 m_surface_colour_target;
 
+	bool m_set_front_face;
 	u32 m_front_face;
 
 	u8 m_begin_end;
@@ -428,6 +434,9 @@ protected:
 		m_clear_z = 0xffffff;
 		m_clear_s = 0;
 
+		m_poly_offset_scale_factor = 0;
+		m_poly_offset_bias = 0;
+
 		m_depth_bounds_min = 0.0;
 		m_depth_bounds_max = 1.0;
 		m_restart_index = 0xffffffff;
@@ -500,6 +509,8 @@ protected:
 		m_set_poly_offset_fill = false;
 		m_set_poly_offset_line = false;
 		m_set_poly_offset_point = false;
+		m_set_poly_offset_scale_factor = false;
+		m_set_poly_offset_bias = false;
 		m_set_restart_index = false;
 
 		m_clear_surface_mask = 0;