sprites {rgl} | R Documentation |
Adds a sprite set shape node to the scene.
sprites3d(x, y, z, radius = 1, ...) particles3d(x, y, z, radius = 1, ...) rgl.sprites(x, y, z, radius = 1, ...)
x, y, z |
point coordinates |
radius |
|
... |
material properties, texture mapping is supported |
Sprites are rectangle planes that are directed towards the viewpoint. Their primary use is for fast (and faked) atmospherical effects, e.g. particles and clouds using alpha blended textures. Particles are Sprites using an alpha-blended particle texture giving the illusion of clouds and gasses.
particles3d( rnorm(100), rnorm(100), rnorm(100), color=rainbow(100) ) # is the same as sprites3d( rnorm(100), rnorm(100), rnorm(100), color=rainbow(100), lit=FALSE, alpha=.2, textype="alpha", texture=system.file("textures/particle.png", package="rgl") )