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43 lines
1.3 KiB
43 lines
1.3 KiB
using Noise;
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using System.IO;
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long width = 1024;
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long height = 1024;
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double scaleX = 128.0;
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double scaleY = 128.0;
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byte[] resBytes = new byte[width*height*3];
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// Console.WriteLine(PerlinNoise.perlin(3.25 , 0, 0));
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// Console.WriteLine(PerlinNoise.perlin(3.25+256, 0, 0));
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// Console.WriteLine(PerlinNoise.perlin(3.25+512, 0, 0));
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for(int i = 0; i<width; i++) {
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for(int j = 0; j<height; j++) {
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double res = PerlinNoise.perlin(((double)i)/scaleX, ((double)j)/scaleY, 1.0);
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byte bRes = (byte)(res * 256);
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resBytes[(i*width+j)*3+0] = bRes;
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resBytes[(i*width+j)*3+1] = bRes;
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resBytes[(i*width+j)*3+2] = bRes;
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}
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}
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using (var fs = new FileStream("out.rif", FileMode.Create, FileAccess.Write)) {
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// Convert width to a byte array in big-endian order
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byte[] widthBytes = BitConverter.GetBytes(width);
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if (BitConverter.IsLittleEndian)
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Array.Reverse(widthBytes); // Convert to big-endian if the system is little-endian
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byte[] header = new byte[] {
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// Magic
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0x72, 0x69, 0x66, 0x56, 0x30, 0x30, 0x30, 0x31,
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// Width
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widthBytes[0], widthBytes[1], widthBytes[2], widthBytes[3],
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widthBytes[4], widthBytes[5], widthBytes[6], widthBytes[7],
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// Format (R8G8B8)
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0x00
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};
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fs.Write(header, 0, header.Length);
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fs.Write(resBytes, 0, resBytes.Length);
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}
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