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-rw-r--r--src/video_core/renderer_opengl/gl_rasterizer.cpp25
1 files changed, 20 insertions, 5 deletions
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 8116a5daa..efbbf11f9 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -1031,6 +1031,26 @@ void RasterizerOpenGL::SyncViewport() {
const auto& regs = gpu.regs;
const bool dirty_viewport = flags[Dirty::Viewports];
+ const bool dirty_clip_control = flags[Dirty::ClipControl];
+
+ if (dirty_clip_control || flags[Dirty::FrontFace]) {
+ flags[Dirty::FrontFace] = false;
+
+ GLenum mode = MaxwellToGL::FrontFace(regs.front_face);
+ if (regs.screen_y_control.triangle_rast_flip != 0 &&
+ regs.viewport_transform[0].scale_y < 0.0f) {
+ switch (mode) {
+ case GL_CW:
+ mode = GL_CCW;
+ break;
+ case GL_CCW:
+ mode = GL_CW;
+ break;
+ }
+ }
+ glFrontFace(mode);
+ }
+
if (dirty_viewport || flags[Dirty::ClipControl]) {
flags[Dirty::ClipControl] = false;
@@ -1128,11 +1148,6 @@ void RasterizerOpenGL::SyncCullMode() {
glDisable(GL_CULL_FACE);
}
}
-
- if (flags[Dirty::FrontFace]) {
- flags[Dirty::FrontFace] = false;
- glFrontFace(MaxwellToGL::FrontFace(regs.front_face));
- }
}
void RasterizerOpenGL::SyncPrimitiveRestart() {