rphong_on_hemisphere: Sampling on hemisphere

Description Usage Arguments Value Examples

View source: R/sphere.R

Description

Sampling on a hemisphere according to the Phong density (dimension 3).

Usage

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rphong_on_hemisphere(n, alpha = 0, r = 1)

Arguments

n

number of simulations

alpha

parameter of the Phong density, a positive number; 0 for uniform sampling (default)

r

radius

Value

The simulations in a n times 3 matrix.

Examples

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## Not run: library(rgl)
sims <- rphong_on_hemisphere(400, alpha=10)
spheres3d(0, 0, 0, color="red", alpha=0.5)
points3d(sims)
## End(Not run)

stla/uniformly documentation built on Aug. 10, 2018, 7:03 a.m.