From 82f3e6dc69d23c3e70c1ad2805e2e15397cd9156 Mon Sep 17 00:00:00 2001 From: bunnei Date: Thu, 1 Oct 2015 18:34:10 -0400 Subject: gl_shader_util: Fix precision bug with alpha testing. - Alpha testing is not done with float32 precision, this makes the HW renderer match the SW renderer. --- src/video_core/renderer_opengl/gl_rasterizer.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/video_core/renderer_opengl/gl_rasterizer.cpp') diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index 45329d561..38d184ae2 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -195,7 +195,7 @@ void RasterizerOpenGL::RegenerateShaders() { // Sync alpha reference if (current_shader->uniform_alphatest_ref != -1) - glUniform1f(current_shader->uniform_alphatest_ref, regs.output_merger.alpha_test.ref / 255.0f); + glUniform1i(current_shader->uniform_alphatest_ref, regs.output_merger.alpha_test.ref); // Sync combiner buffer color if (current_shader->uniform_tev_combiner_buffer_color != -1) { @@ -655,7 +655,7 @@ void RasterizerOpenGL::SyncBlendColor() { void RasterizerOpenGL::SyncAlphaTest() { const auto& regs = Pica::g_state.regs; if (current_shader->uniform_alphatest_ref != -1) - glUniform1f(current_shader->uniform_alphatest_ref, regs.output_merger.alpha_test.ref / 255.0f); + glUniform1i(current_shader->uniform_alphatest_ref, regs.output_merger.alpha_test.ref); } void RasterizerOpenGL::SyncLogicOp() { -- cgit v1.2.3