|Context(s)||displace fog surface|
vector shadow_light(int lightid, vector pos, vector dir, float time, ...)
This operation is similar to the shadow() function but it allows execution of the shadow shader outside an illuminance loop. The position and direction toward the light source are provided directly, and the shadow shader is executed - returning the shadow multiplier. To produce the final shadowed color, multiply the shaded color by the value returned by shadow_light.
Keyword variadic arguments can be passed to the shadow shader, for import in the shadow shader with with simport().
A light identifier, as returned by getlights.
The origin of the ray (such as the global variable
Direction vector from the origin. The length of this vector should be the distance from pos to the light source.
Time to send the ray at.