Irradiance VEX node

Computes the irradiance (the global illumination) at the point P with the normal N.

See also: Occlusion

This operator computes the irradiance (the global illumination) at the point P with the normal N.

The Bias parameter (bias) gives control over self-intersections. The Samples value specifies the number of samples should be sent out to filter rays. If the ray sent out to the scene misses everything, then it is possible to specify an environment map to evaluate. Using the ray’s direction, the environment map (envmap) specified will be evaluated and the resulting color will be returned. Most likely, it will be necessary to specify a transform space (envobj) for the environment map evaluations. Also, if an environment map is specified, it is possible to tint the resulting color (tint). If a ray misses all objects, you can specify the background color (bgcolor) of the scene.

If the position (P) and normal vector (N) are not connected, the global variables by the same names will be used instead. If the maximum ray distance (maxdist) is not connected, the rays will be allowed to travel to infinity.

See how to create an environment/reflection map.

Usages in other examples

Example name Example for