OpenGL: flip front faces if Z scale is inverted
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@ -561,8 +561,9 @@ void RasterizerOpenGL::SyncViewport() {
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flags[Dirty::FrontFace] = false;
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GLenum mode = MaxwellToGL::FrontFace(regs.front_face);
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if (regs.screen_y_control.triangle_rast_flip != 0 &&
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regs.viewport_transform[0].scale_y < 0.0f) {
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if ((regs.screen_y_control.triangle_rast_flip != 0 &&
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regs.viewport_transform[0].scale_y < 0.0f) ||
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regs.viewport_transform[0].scale_z < 0.0f) {
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switch (mode) {
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case GL_CW:
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mode = GL_CCW;
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