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Merge pull request #8149 from liamwhite/front-face

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OpenGL: flip front faces if Z scale is inverted
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bunnei 2022-04-09 01:39:39 -07:00 committed by GitHub
commit bf3c6f8812
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1 changed files with 8 additions and 1 deletions
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9
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -559,12 +559,19 @@ void RasterizerOpenGL::SyncViewport() {
const bool dirty_viewport = flags[Dirty::Viewports] || rescale_viewports; const bool dirty_viewport = flags[Dirty::Viewports] || rescale_viewports;
const bool dirty_clip_control = flags[Dirty::ClipControl]; const bool dirty_clip_control = flags[Dirty::ClipControl];
if (dirty_clip_control || flags[Dirty::FrontFace]) { if (dirty_viewport || dirty_clip_control || flags[Dirty::FrontFace]) {
flags[Dirty::FrontFace] = false; flags[Dirty::FrontFace] = false;
GLenum mode = MaxwellToGL::FrontFace(regs.front_face); GLenum mode = MaxwellToGL::FrontFace(regs.front_face);
bool flip_faces = false;
if (regs.screen_y_control.triangle_rast_flip != 0 && if (regs.screen_y_control.triangle_rast_flip != 0 &&
regs.viewport_transform[0].scale_y < 0.0f) { regs.viewport_transform[0].scale_y < 0.0f) {
flip_faces = !flip_faces;
}
if (regs.viewport_transform[0].scale_z < 0.0f) {
flip_faces = !flip_faces;
}
if (flip_faces) {
switch (mode) { switch (mode) {
case GL_CW: case GL_CW:
mode = GL_CCW; mode = GL_CCW;