92 lines
2.6 KiB
C#
92 lines
2.6 KiB
C#
using UnityEditor;
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using UnityEngine;
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namespace AllIn13DShader
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{
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public class AtlasPackerTool
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{
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public AtlasPackerValues values;
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//public int atlasXCount;
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//public int atlasYCount;
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//public TextureSizes atlasSizesX;
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//public TextureSizes atlasSizesY;
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//public FilterMode atlasFiltering;
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//public bool squareAtlas;
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//public Texture2D[] atlas;
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//public Texture2D createdAtlas;
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public AtlasPackerTool()
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{
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ResetValues();
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values.atlasXCount = 1;
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values.atlasYCount = 1;
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values.atlasSizesX = TextureSizes._1024;
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values.atlasSizesY = TextureSizes._1024;
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values.squareAtlas = true;
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values.atlasFiltering = FilterMode.Bilinear;
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}
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public void ResetValues()
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{
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values = ScriptableObject.CreateInstance<AtlasPackerValues>();
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values.atlas = new Texture2D[0];
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}
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public void CreateAtlas()
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{
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int atlasElements = values.atlasXCount * values.atlasYCount;
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int atlasWidth = (int)values.atlasSizesX;
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int atlasHeight = (int)values.atlasSizesY;
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Texture2D[] AtlasCopy = (Texture2D[])values.atlas.Clone();
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int textureXTargetWidth = atlasWidth / values.atlasXCount;
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int textureYTargetHeight = atlasHeight / values.atlasYCount;
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values.createdAtlas = new Texture2D(atlasWidth, atlasHeight);
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for (int i = 0; i < values.atlasYCount; i++)
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{
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for (int j = 0; j < values.atlasXCount; j++)
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{
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int currIndex = (i * values.atlasXCount) + j;
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bool hasImageForThisIndex = currIndex < AtlasCopy.Length && AtlasCopy[currIndex] != null;
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if (hasImageForThisIndex)
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{
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EditorUtils.SetTextureReadWrite(AssetDatabase.GetAssetPath(AtlasCopy[currIndex]), true);
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Texture2D copyTexture = new Texture2D(AtlasCopy[currIndex].width, AtlasCopy[currIndex].height);
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copyTexture.SetPixels(AtlasCopy[currIndex].GetPixels());
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copyTexture.Apply();
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AtlasCopy[currIndex] = copyTexture;
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AtlasCopy[currIndex] = EditorUtils.ScaleTexture(AtlasCopy[currIndex], textureXTargetWidth, textureYTargetHeight);
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AtlasCopy[currIndex].Apply();
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}
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for (int y = 0; y < textureYTargetHeight; y++)
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{
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for (int x = 0; x < textureXTargetWidth; x++)
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{
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if (hasImageForThisIndex) values.createdAtlas.SetPixel((j * textureXTargetWidth) + x, (i * textureYTargetHeight) + y, AtlasCopy[currIndex].GetPixel(x, y));
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else values.createdAtlas.SetPixel((j * textureXTargetWidth) + x, (i * textureYTargetHeight) + y, new Color(0, 0, 0, 1));
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}
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}
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}
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}
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values.createdAtlas.Apply();
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}
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public int GetAtlasElements()
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{
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int res = values.atlasXCount * values.atlasYCount;
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return res;
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}
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}
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} |