Åtkomst till pixeldata i TextureData
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Detta stöds av version 23.4 eller mer.
Skriv bildpunktsdata
Använd följande klass för att definiera texturkodare och texturdekodare:
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TextureData tex = new TextureData(128, 128, PixelFormat.A8R8G8B8); | |
try (PixelMapping mapping = tex.mapPixels(PixelMapMode.WRITE_ONLY)) | |
{ | |
var pixels = mapping.getData(); | |
var p = 0; | |
for(var y = 0; y < 128; y++) | |
{ | |
for (var x = 0; x < 128; x++) | |
{ | |
pixels[p + 0] = (byte)255;//alpha | |
pixels[p + 1] = (byte)255;//red | |
pixels[p + 2] = 0;//green | |
pixels[p + 3] = 0;//blue | |
p += 4;//next pixel | |
} | |
} | |
} | |
tex.save("red.png"); |
Omvandla bildpunktsformatt
Med transformPixelFormat kan du enkelt ändra texturens pixelformat:
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var tex = TextureData.fromFile("test.png"); | |
tex.transformPixelFormat(PixelFormat.G8);//now the texture data only contains green channel in pixel. |