N-archive/citra
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Round TEV outputs and the final fragment output in GLSL

Browse source 
Fixes water effect in SM3DL
This commit is contained in:
Dwayne Slater 2018-04-07 16:43:56 -04:00
parent 39fce60145
commit 734279ff22
1 changed files with 24 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
src/video_core/renderer_opengl/gl_shader_gen.cpp
View file

@ -509,9 +509,10 @@ static void WriteTevStage(std::string& out, const PicaShaderConfig& config, unsi
AppendColorModifier(out, config, stage.color_modifier3, stage.color_source3, index_name);
out += ");\n";
out += "vec3 color_output_" + index_name + " = ";
// Round the output of each TEV stage to maintain the PICA's 8 bits of precision
out += "vec3 color_output_" + index_name + " = byteround(";
AppendColorCombiner(out, stage.color_op, "color_results_" + index_name);
out += ";\n";
out += ");\n";
if (stage.color_op == TevStageConfig::Operation::Dot3_RGBA) {
// result of Dot3_RGBA operation is also placed to the alpha component
@ -528,9 +529,9 @@ static void WriteTevStage(std::string& out, const PicaShaderConfig& config, unsi
index_name);
out += ");\n";
out += "float alpha_output_" + index_name + " = ";
out += "float alpha_output_" + index_name + " = byteround(";
AppendAlphaCombiner(out, stage.alpha_op, "alpha_results_" + index_name);
out += ";\n";
out += ");\n";
}
out += "last_tex_env_out = vec4("
@ -1099,6 +1100,22 @@ float LookupLightingLUTSigned(int lut_index, float pos) {
return LookupLightingLUT(lut_index, index, delta);
}
float byteround(float x) {
return round(x * 255.0) / 255.0;
}
vec2 byteround(vec2 x) {
return round(x * 255.0) / 255.0;
}
vec3 byteround(vec3 x) {
return round(x * 255.0) / 255.0;
}
vec4 byteround(vec4 x) {
return round(x * 255.0) / 255.0;
}
)";
if (config.state.proctex.enable)
@ -1108,7 +1125,7 @@ float LookupLightingLUTSigned(int lut_index, float pos) {
// This maintains the PICA's 8 bits of precision
out += R"(
void main() {
vec4 rounded_primary_color = round(primary_color * 255.0) / 255.0;
vec4 rounded_primary_color = byteround(primary_color);
vec4 primary_fragment_color = vec4(0.0);
vec4 secondary_fragment_color = vec4(0.0);
)";
@ -1183,7 +1200,8 @@ vec4 secondary_fragment_color = vec4(0.0);
}
out += "gl_FragDepth = depth;\n";
out += "color = last_tex_env_out;\n";
// Round the final fragment color to maintain the PICA's 8 bits of precision
out += "color = byteround(last_tex_env_out);\n";
out += "}";