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Experimental: up the chroma accuracy, just let the luma go straight through. Subject to figuring out how I'm still losing so much precision.

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This commit is contained in:
Thomas Harte 2017-01-03 22:41:34 -05:00
parent a836120945
commit aa7774a9a6
2 changed files with 29 additions and 28 deletions
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2
Outputs/CRT/Internals/CRTOpenGL.cpp
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@ -398,7 +398,7 @@ void OpenGLOutputBuilder::set_timing_uniforms()
if(composite_chrominance_filter_shader_program_)
{
composite_chrominance_filter_shader_program_->set_width_scalers(output_width, output_width);
composite_chrominance_filter_shader_program_->set_filter_coefficients(sample_cycles_per_line, colour_subcarrier_frequency * 0.5f);
composite_chrominance_filter_shader_program_->set_filter_coefficients(sample_cycles_per_line, colour_subcarrier_frequency);
}
if(rgb_filter_shader_program_)
{

55
Outputs/CRT/Internals/Shaders/IntermediateShader.cpp
View File

@ -302,34 +302,35 @@ std::unique_ptr<IntermediateShader> IntermediateShader::make_luma_filter_shader(
"void main(void)"
"{"
"vec3 samples[] = vec3[]("
"texture(texID, inputPositionsVarying[0]).rgb,"
"texture(texID, inputPositionsVarying[1]).rgb,"
"texture(texID, inputPositionsVarying[2]).rgb,"
"texture(texID, inputPositionsVarying[3]).rgb,"
"texture(texID, inputPositionsVarying[4]).rgb,"
"texture(texID, inputPositionsVarying[5]).rgb,"
"texture(texID, inputPositionsVarying[6]).rgb,"
"texture(texID, inputPositionsVarying[7]).rgb,"
"texture(texID, inputPositionsVarying[8]).rgb,"
"texture(texID, inputPositionsVarying[9]).rgb,"
"texture(texID, inputPositionsVarying[10]).rgb"
");"
// "vec3 samples[] = vec3[]("
// "texture(texID, inputPositionsVarying[0]).rgb,"
// "texture(texID, inputPositionsVarying[1]).rgb,"
// "texture(texID, inputPositionsVarying[2]).rgb,"
// "texture(texID, inputPositionsVarying[3]).rgb,"
// "texture(texID, inputPositionsVarying[4]).rgb,"
// "texture(texID, inputPositionsVarying[5]).rgb,"
// "texture(texID, inputPositionsVarying[6]).rgb,"
// "texture(texID, inputPositionsVarying[7]).rgb,"
// "texture(texID, inputPositionsVarying[8]).rgb,"
// "texture(texID, inputPositionsVarying[9]).rgb,"
// "texture(texID, inputPositionsVarying[10]).rgb"
// ");"
//
// "vec4 luminance[] = vec4[]("
// "vec4(samples[0].r, samples[1].r, samples[2].r, samples[3].r),"
// "vec4(samples[4].r, samples[5].r, samples[6].r, samples[7].r),"
// "vec4(samples[8].r, samples[9].r, samples[10].r, 0.0)"
// ");"
"vec4 luminance[] = vec4[]("
"vec4(samples[0].r, samples[1].r, samples[2].r, samples[3].r),"
"vec4(samples[4].r, samples[5].r, samples[6].r, samples[7].r),"
"vec4(samples[8].r, samples[9].r, samples[10].r, 0.0)"
");"
"fragColour = vec3("
"dot(vec3("
"dot(luminance[0], weights[0]),"
"dot(luminance[1], weights[1]),"
"dot(luminance[2], weights[2])"
"), vec3(1.0)),"
"samples[5].gb"
");"
// "fragColour = vec3("
// "dot(vec3("
// "dot(luminance[0], weights[0]),"
// "dot(luminance[1], weights[1]),"
// "dot(luminance[2], weights[2])"
// "), vec3(1.0)),"
// "samples[5].gb"
// ");"
"fragColour = texture(texID, inputPositionsVarying[5]).rgb;"//lumaChromaToRGB * lumaChromaColourInRange;"
"}", false, false);
}