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prevent rounding errors with deinterlacing shaders

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This commit is contained in:
hunterk 2018-03-20 20:28:08 -05:00
parent e4f6e62bf1
commit 994fc49f12
3 changed files with 6 additions and 6 deletions
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4
misc/bob-and-ghost-deinterlacing.slang
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@ -53,11 +53,11 @@ void main()
}
else
{
y = 2.0 * params.SourceSize.y * vTexCoord.y;
y = 2.000001 * params.SourceSize.y * vTexCoord.y;
prev = current;
}
if (mod(y, 2.0) > 0.99999) current = current;
else current = vec4(pow(texture(Source, vTexCoord), vec4(2.2)));
FragColor = vec4(pow((current + prev) / vec4(2.0), vec4(1.0 / 2.2)));
}
}

4
misc/bob-deinterlacing.slang
View file

@ -43,9 +43,9 @@ void main()
float y = 0.0;
// assume anything with a vertical resolution greater than 400 lines is interlaced
if (params.SourceSize.y > 400.0) y = params.SourceSize.y * vTexCoord.y + float(params.FrameCount);
else y = 2.0 * params.SourceSize.y * vTexCoord.y;
else y = 2.000001 * params.SourceSize.y * vTexCoord.y;
if (mod(y, 2.0) > 0.99999) FragColor = vec4(texture(Source, vTexCoord + vec2(0.0, params.SourceSize.w)));
else
FragColor = vec4(texture(Source, vTexCoord).rgb, 1.0);
}
}

4
misc/interlacing.slang
View file

@ -55,11 +55,11 @@ void main()
if (registers.SourceSize.y > 400.0)
{y = registers.SourceSize.y * vTexCoord.y + (tick * registers.enable_480i) + registers.top_field_first;}
else
{y = 2.0 * registers.SourceSize.y * vTexCoord.y + registers.top_field_first;}
{y = 2.000001 * registers.SourceSize.y * vTexCoord.y + registers.top_field_first;}
if (mod(y, 1.99999) > 0.99999)
{res = res;}
else
{res = vec4(registers.percent) * res;}
FragColor = res;
}
}