Render Preview

Takes the scene description and renders an image, either to the device or to a filename.

render_preview(..., light_direction = c(0, -1, 0), exponent = 6)

Arguments

...

All arguments that would be passed to `render_scene()`.

light_direction

Default `c(0,-1,0)`. Vector specifying the orientation for the global light using for phong shading.

exponent

Default `6`. Phong exponent.

Value

Raytraced plot to current device, or an image saved to a file.

Examples

if(run_documentation()) {
generate_ground(material=diffuse(color="darkgreen")) %>% 
  add_object(sphere(material=diffuse(checkercolor="red"))) %>% 
  render_preview()
  }

if(run_documentation()) {
#Change the light direction
generate_ground(material=diffuse(color="darkgreen")) %>% 
  add_object(sphere(material=diffuse(checkercolor="red"))) %>% 
  render_preview(light_direction = c(-1,-1,0))
}

if(run_documentation()) {
#Change the Phong exponent
generate_ground(material=diffuse(color="darkgreen")) %>% 
  add_object(sphere(material=diffuse(checkercolor="red"))) %>% 
  render_preview(light_direction = c(-1,-1,0), exponent=100)
}