From 8978ecb09caa91424b7117a91d22e7f54040e701 Mon Sep 17 00:00:00 2001 From: wwylele Date: Thu, 22 Jun 2017 17:22:45 +0300 Subject: gl_rasterizer: use texture buffer for fog LUT --- src/video_core/renderer_opengl/gl_shader_gen.cpp | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) (limited to 'src/video_core/renderer_opengl/gl_shader_gen.cpp') diff --git a/src/video_core/renderer_opengl/gl_shader_gen.cpp b/src/video_core/renderer_opengl/gl_shader_gen.cpp index 0c7c4dd5c..c93b108fb 100644 --- a/src/video_core/renderer_opengl/gl_shader_gen.cpp +++ b/src/video_core/renderer_opengl/gl_shader_gen.cpp @@ -1052,7 +1052,7 @@ layout (std140) uniform shader_data { uniform sampler2D tex[3]; uniform samplerBuffer lighting_lut; -uniform usampler1D fog_lut; +uniform samplerBuffer fog_lut; uniform sampler1D proctex_noise_lut; uniform sampler1D proctex_color_map; uniform sampler1D proctex_alpha_map; @@ -1145,12 +1145,8 @@ vec4 secondary_fragment_color = vec4(0.0); // Generate clamped fog factor from LUT for given fog index out += "float fog_i = clamp(floor(fog_index), 0.0, 127.0);\n"; out += "float fog_f = fog_index - fog_i;\n"; - out += "uint fog_lut_entry = texelFetch(fog_lut, int(fog_i), 0).r;\n"; - out += "float fog_lut_entry_difference = float(int((fog_lut_entry & 0x1FFFU) << 19U) >> " - "19);\n"; // Extract signed difference - out += "float fog_lut_entry_value = float((fog_lut_entry >> 13U) & 0x7FFU);\n"; - out += "float fog_factor = (fog_lut_entry_value + fog_lut_entry_difference * fog_f) / " - "2047.0;\n"; + out += "vec2 fog_lut_entry = texelFetch(fog_lut, int(fog_i)).rg;\n"; + out += "float fog_factor = fog_lut_entry.r + fog_lut_entry.g * fog_f;\n"; out += "fog_factor = clamp(fog_factor, 0.0, 1.0);\n"; // Blend the fog -- cgit v1.2.3