private int[] calcEmptySpace(ref ITexture inputTex)
{
var origColors = inputTex.GetPixelColors(LayerMipmapSlice.Mip0);
var expectedColors = new Color[origColors.Length];
Size3 size = inputTex.Size;
int[] ping = new int[origColors.Length];
int[] pong = new int[origColors.Length];
for (int i = 0; i < 127; i++)
{
foreach (var coord in size)
{
int curIndex = getIndex(coord, size);
if (origColors[curIndex].Alpha > 0)
{
ping[curIndex] = 0;
}
else
{
int min = 126;
for (int x = -1; x <= 1; x++)
{
for (int y = -1; y <= 1; y++)
{
for (int z = -1; z <= 1; z++)
{
min = Math.Min(min, getPixelValue(coord + new Size3(x, y, z), size, pong));
}
}
}
ping[curIndex] = min + 1;
}
}
int[] temp = ping;
ping = pong;
pong = temp;
}
return(pong);
}
private int[] CalcValues(ITexture tex)
{
var origColors = tex.GetPixelColors(LayerMipmapSlice.Mip0);
var size = tex.Size;
int[] ping = new int[origColors.Length];
int[] pong = new int[origColors.Length];
// transfer data into ping
for (int i = 0; i < origColors.Length; ++i)
{
ping[i] = origColors[i].Alpha > 0 ? 0 : 255;
}
for (int i = 0; i < 255; ++i)
{
foreach (var coord in size)
{
var idx = GetIndex(coord, size);
if (ping[idx] == 0)
{
pong[idx] = 0;
continue;
}
int min = 255;
min = Math.Min(min, GetPixelValue(coord - new Size3(1, 0, 0), size, ping));
min = Math.Min(min, GetPixelValue(coord + new Size3(1, 0, 0), size, ping));
min = Math.Min(min, GetPixelValue(coord - new Size3(0, 1, 0), size, ping));
min = Math.Min(min, GetPixelValue(coord + new Size3(0, 1, 0), size, ping));
min = Math.Min(min, GetPixelValue(coord - new Size3(0, 0, 1), size, ping));
min = Math.Min(min, GetPixelValue(coord + new Size3(0, 0, 1), size, ping));
pong[idx] = Math.Min(min + 1, 255);
}
int[] temp = ping;
ping = pong;
pong = temp;
}
return(ping);
}