Arccosine

What is it about?

This page documents the Arccosine node of the Redshift renderer in Cinema 4D. It returns the arc-cosine of its input — typically converting dot-product results back into angles for angle-based shading logic.

Returns the arc-cosine of Input. When Radians is selected, the output range will be between 0 and PI, otherwise 0 and 180 degrees.