VEX Dictionary / bumpmapL
bumpmapL
Samples the luminance channel's bump derivatives from a texture file; superseded by Du/Dv on texture.
colormapfile
Available in every context
Examples
No worked examples yet.
Signatures (from vcc -X)
void bumpmapL(string, float &, float &, float, float)all contextsvoid bumpmapL(string, float &, float &, vector)all contexts