Fetch and decode a grayscale heightmap image into an r16float texture. The R channel of the decoded image is read as height. Throws if the fetch or decode fails (so callers can fall back to procedural generation).
r16float
Fetch and decode a grayscale heightmap image into an
r16floattexture. The R channel of the decoded image is read as height. Throws if the fetch or decode fails (so callers can fall back to procedural generation).