66 lines
1.3 KiB
Plaintext
66 lines
1.3 KiB
Plaintext
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/*
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[configuration]
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[OptionRangeFloat]
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GUIName = Active Line Brightness
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OptionName = BRIGHTEN
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MinValue = 0.1
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MaxValue = 2.0
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StepAmount = 0.1
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DefaultValue = 1.1
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[OptionRangeFloat]
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GUIName = Inactive Line Darkness
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OptionName = DARKEN
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MinValue = 0.1
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MaxValue = 1.0
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StepAmount = 0.01
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DefaultValue = 0.5
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[OptionRangeFloat]
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GUIName = Scanline Thickness
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OptionName = THICKNESS
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MinValue = 0.1
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MaxValue = 1.0
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StepAmount = 0.01
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DefaultValue = 0.5
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[OptionRangeFloat]
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GUIName = Scanline Spacing
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OptionName = SPACING
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MinValue = 0.1
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MaxValue = 1.0
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StepAmount = 0.01
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DefaultValue = 0.25
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[/configuration]
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*/
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float3 RGBToYUV(float3 rgb)
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{
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return float3(dot(rgb.rgb, float3(0.299, 0.587, 0.114)),
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dot(rgb.rgb, float3(-0.14713, -0.28886, 0.436)),
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dot(rgb.rgb, float3(0.615, -0.51499, -0.10001)));
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}
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float3 YUVToRGB(float3 yuv)
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{
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return float3(dot(yuv, float3(1.0f, 0.0, 1.13983)),
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dot(yuv, float3(1.0f, -0.39465, -0.58060)),
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dot(yuv, float3(1.0f, 2.03211, 0.0)));
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}
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void main()
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{
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float2 pos = GetFragCoord();
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float4 color = Sample();
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float3 yuv = RGBToYUV(color.rgb);
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float thickness = GetOption(THICKNESS);
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float spacing = GetOption(SPACING);
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yuv.r *= (frac(pos.y * spacing) > thickness) ? (1.0 - GetOption(DARKEN)) : GetOption(BRIGHTEN);
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color.rgb = YUVToRGB(yuv);
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SetOutput(color);
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}
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