private static Rect[] GetPackedTexture(Dictionary <MaterialData, RendererList> matMap, out Texture2D texture)
{
var packingList = new List <PackingData>();
foreach (var pair in matMap)
{
for (int index = 0; index < pair.Value.List.Count; index++)
{
var rData = pair.Value.List[index];
if (rData.Mesh == null)
{
continue;
}
var uvs = rData.Mesh.uv;
// Get Remap UV
var minmax = new Vector4(1, 1, 0, 0);
Vector2 uv;
for (int i = 0; i < uvs.Length; i++)
{
uv = uvs[i];
minmax.x = Mathf.Min(minmax.x, uv.x);
minmax.y = Mathf.Min(minmax.y, uv.y);
minmax.z = Mathf.Max(minmax.z, uv.x);
minmax.w = Mathf.Max(minmax.w, uv.y);
}
var remapUV = new Rect(minmax.x, minmax.y, minmax.z - minmax.x, minmax.w - minmax.y);
rData.RemapUV = remapUV;
// Get New Texture
if (rData.Texture)
{
int sourceWidth = rData.Texture.width;
int sourceHeight = rData.Texture.height;
int width = (int)(sourceWidth * remapUV.width);
int height = (int)(sourceHeight * remapUV.height);
var colors = rData.Texture.GetPixels(
(int)(remapUV.x * sourceWidth),
(int)(remapUV.y * sourceHeight),
width,
height
);
rData.PackingIndex = packingList.Count;
packingList.Add(new PackingData(width, height, colors));
}
else
{
rData.PackingIndex = packingList.Count;
packingList.Add(new PackingData(1, 1, new Color[1]));
}
}
}
return(RectPacking.PackTextures(out texture, packingList, true, false));
}
private static Result Pack2DTextures(Color[][] colorss, int[] widths, int[] heights, Vector2 pivot)
{
int tCount = colorss.Length;
Result resultInfo = new Result()
{
Pivots = new Vector2[6] {
pivot, pivot, pivot, pivot, pivot, pivot
},
};
Texture2D[] textures = new Texture2D[colorss.Length];
for (int i = 0; i < textures.Length; i++)
{
textures[i] = new Texture2D(widths[i], heights[i], TextureFormat.ARGB32, false);
textures[i].SetPixels(colorss[i]);
textures[i].Apply();
}
var packingList = new List <PackingData>();
for (int i = 0; i < textures.Length; i++)
{
var t = textures[i];
packingList.Add(new PackingData(t.width, t.height, t.GetPixels(), false));
}
Rect[] rects = RectPacking.PackTextures(out resultInfo.Texture, packingList, false, true);
resultInfo.Width = resultInfo.Texture.width;
resultInfo.Height = resultInfo.Texture.height;
for (int i = 0; i < rects.Length; i++)
{
rects[i].x *= resultInfo.Width;
rects[i].y *= resultInfo.Height;
rects[i].width *= resultInfo.Width;
rects[i].height *= resultInfo.Height;
rects[i].width = rects[i].width - 1;
rects[i].height = rects[i].height - 1;
}
resultInfo.Rects = rects;
return(resultInfo);
}