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rgl (version 0.70)

light: add light source

Description

add a light source to the scene.

Usage

light3d(theta = 0, phi = 15, ...)
rgl.light( theta = 0, phi = 0, viewpoint.rel = TRUE, ambient = "#FFFFFF", 
           diffuse = "#FFFFFF", specular = "#FFFFFF")

Arguments

theta, phi
polar coordinates
viewpoint.rel
logical, if TRUE light is a viewpoint light that is positioned relative to the current viewpoint
ambient, diffuse, specular
...
generic arguments passed through to RGL-specific (or other) functions

Value

  • This function is called for the side effect of adding a light. A light ID is returned to allow rgl.pop to remove it.

Details

Up to 8 light sources are supported. They are positioned either in world space or relative to the camera using polar coordinates. Light sources are directional.

See Also

rgl.clear rgl.pop