public static void Apply(Texture2D tex)
{
if (tex == null)
{
return;
}
int xSize = tex.width;
int ySize = tex.height;
float xStep = 1.0f / (float)xSize;
float yStep = 1.0f / (float)ySize;
float xOffset = xStep * 0.5f;
float yOffset = yStep * 0.5f;
PerlinNoise perlin = new PerlinNoise();
for (int y = 0; y < ySize; y++)
{
float vy = y * yStep + yOffset;
for (int x = 0; x < xSize; x++)
{
float vx = x * xStep + xOffset;
tex.SetPixel(x, y, Color.white * perlin.Eval(vx, vy));
}
}
tex.Apply();
}