Cube Object — cube • rayrender

Cube Object

cube(
  x = 0,
  y = 0,
  z = 0,
  width = 1,
  xwidth = 1,
  ywidth = 1,
  zwidth = 1,
  material = diffuse(),
  angle = c(0, 0, 0),
  order_rotation = c(1, 2, 3),
  flipped = FALSE,
  scale = c(1, 1, 1)
)

Arguments

x: Default `0`. x-coordinate of the center of the cube
y: Default `0`. y-coordinate of the center of the cube
z: Default `0`. z-coordinate of the center of the cube
width: Default `1`. Cube width.
xwidth: Default `1`. x-width of the cube. Overrides `width` argument for x-axis.
ywidth: Default `1`. y-width of the cube. Overrides `width` argument for y-axis.
zwidth: Default `1`. z-width of the cube. Overrides `width` argument for z-axis.
material: Default diffuse.The material, called from one of the material functions diffuse, metal, or dielectric.
angle: Default `c(0, 0, 0)`. Angle of rotation around the x, y, and z axes, applied in the order specified in `order_rotation`.
order_rotation: Default `c(1, 2, 3)`. The order to apply the rotations, referring to "x", "y", and "z".
flipped: Default `FALSE`. Whether to flip the normals.
scale: Default `c(1, 1, 1)`. Scale transformation in the x, y, and z directions. If this is a single value, number, the object will be scaled uniformly. Note: emissive objects may not currently function correctly when scaled.

Value

Single row of a tibble describing the cube in the scene.

Examples

#Generate a cube in the cornell box.
if(run_documentation()) {
generate_cornell() %>%
  add_object(cube(x = 555/2, y = 100, z = 555/2, 
                  xwidth = 200, ywidth = 200, zwidth = 200, angle = c(0, 30, 0))) %>%
  render_scene(lookfrom = c(278, 278, -800) ,lookat = c(278, 278, 0), fov = 40, 
               ambient_light = FALSE, samples = 16, parallel = TRUE, clamp_value = 5)
}

#Generate a gold cube in the cornell box
if(run_documentation()) {
generate_cornell() %>%
  add_object(cube(x = 555/2, y = 100, z = 555/2, 
                  xwidth = 200, ywidth = 200, zwidth = 200, angle = c(0, 30, 0),
                  material = metal(color = "gold", fuzz = 0.2))) %>%
  render_scene(lookfrom = c(278, 278, -800) ,lookat = c(278, 278, 0), fov = 40, 
               ambient_light = FALSE, samples = 16, parallel = TRUE, clamp_value = 5)
}


#Generate a rotated dielectric box in the cornell box
if(run_documentation()) {
generate_cornell() %>%
  add_object(cube(x = 555/2, y = 200, z = 555/2, 
                  xwidth = 200, ywidth = 100, zwidth = 200, angle = c(-30, 30, -30),
                  material = dielectric())) %>%
  render_scene(lookfrom = c(278, 278, -800) ,lookat = c(278, 278, 0), fov = 40,  
               ambient_light = FALSE, samples = 16, parallel = TRUE, clamp_value = 5) 
}