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gl: Fix face winding

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- Face winding is always calculated based off the top left corner
This commit is contained in:
kd-11 2017-11-18 17:23:25 +03:00
parent de5a4fe083
commit 07fe5f87ae
1 changed files with 8 additions and 8 deletions
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16
rpcs3/Emu/RSX/GL/GLGSRender.cpp
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@ -140,24 +140,24 @@ namespace
GLenum front_face(rsx::front_face op)
{
bool invert = (rsx::method_registers.shader_window_origin() == rsx::window_origin::bottom);
//NOTE: RSX face winding is always based off of upper-left corner like vulkan, but GL is bottom left
//shader_window_origin register does not affect this
//verified with Outrun Online Arcade (window_origin::top) and DS2 (window_origin::bottom)
//correctness of face winding checked using stencil test (GOW collection shadows)
switch (op)
{
case rsx::front_face::cw: return (invert ? GL_CCW : GL_CW);
case rsx::front_face::ccw: return (invert ? GL_CW : GL_CCW);
case rsx::front_face::cw: return GL_CCW;
case rsx::front_face::ccw: return GL_CW;
}
fmt::throw_exception("Unsupported front face 0x%X" HERE, (u32)op);
}
GLenum cull_face(rsx::cull_face op)
{
bool invert = (rsx::method_registers.shader_window_origin() == rsx::window_origin::top);
switch (op)
{
case rsx::cull_face::front: return (invert ? GL_BACK : GL_FRONT);
case rsx::cull_face::back: return (invert ? GL_FRONT : GL_BACK);
case rsx::cull_face::front: return GL_FRONT;
case rsx::cull_face::back: return GL_BACK;
case rsx::cull_face::front_and_back: return GL_FRONT_AND_BACK;
}
fmt::throw_exception("Unsupported cull face 0x%X" HERE, (u32)op);