public static Color NearestSample(this Cubemap c, Utils.CubemapCoordinates coords)
{
// Can I somehow make sure that coords.X or coords.Y is never 1 for sane directions
int x = (int)Mathf.Min(coords.X * c.width, c.width - 1);
int y = (int)Mathf.Min(coords.Y * c.width, c.width - 1);
return(c.GetPixel(coords.Face, x, y));
}
////////////////////////////////////////////////////////////////////////////
// Computes the direction vector used for looking up in cubemap from the
// x and y coords normalized to range [-0.5, 0.5] and the cube side.
////////////////////////////////////////////////////////////////////////////
public static Vector3 CubemapDirection(CubemapCoordinates coords)
{
return(CubemapDirection(coords.Face, coords.X, coords.Y));
}
public static Color NearestSample(this Cubemap c, Vector3 direction)
{
Utils.CubemapCoordinates coords = Utils.Cubemap.CubemapCoordinates(direction);
return(c.NearestSample(coords));
}