51 lines
1.6 KiB
C#
51 lines
1.6 KiB
C#
using System;
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using static Matrix_App.GifGeneratorUtils;
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namespace Matrix_App.PregeneratedMods
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{
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public sealed class Boxblur : MatrixGifGenerator
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{
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[UiDescriptionAttribute(title: "Blur size", description: "The side length of the bounding square used to blur in pixels")]
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public int blurSize = 2;
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protected override void ColorFragment(in int x, in int y, in float u, in float v, in int frame, out float r, out float g, out float b)
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{
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float avrR = 0;
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float avrG = 0;
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float avrB = 0;
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if (blurSize > 0)
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{
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for (int i = -blurSize; i < blurSize; i++)
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{
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int s = Math.Clamp(x + i, 0, width - 1);
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for (int j = -blurSize; j < blurSize; j++)
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{
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int t = Math.Clamp(y + j, 0, height - 1);
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SampleFrame(actualStore, frame, s, t, width, out float tmpR, out float tmpG, out float tmpB);
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avrR += tmpR;
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avrG += tmpG;
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avrB += tmpB;
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}
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}
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float blurKernelArea = 1.0f / ((blurSize << 1) * (blurSize << 1));
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r = avrR * blurKernelArea;
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g = avrG * blurKernelArea;
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b = avrB * blurKernelArea;
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} else
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{
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SampleFrame(actualStore, frame, x, y, width, out float tmpR, out float tmpG, out float tmpB);
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r = tmpR;
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g = tmpG;
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b = tmpB;
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}
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}
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}
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}
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