Sphere 3D Model

Sphere 3D Model

sphere_mesh(
  position = c(0, 0, 0),
  scale = c(1, 1, 1),
  angle = c(0, 0, 0),
  pivot_point = c(0, 0, 0),
  order_rotation = c(1, 2, 3),
  radius = 1,
  low_poly = FALSE,
  normals = TRUE,
  material = material_list()
)

Arguments

position

Default c(0,0,0). Position of the mesh.

scale

Default c(1,1,1). Scale of the mesh. Can also be a single numeric value scaling all axes uniformly.

angle

Default c(0,0,0). Angle to rotate the mesh.

pivot_point

Default c(0,0,0). Point around which to rotate the mesh.

order_rotation

Default c(1,2,3). Order to rotate the axes.

radius

Default 1. Radius of the sphere.

low_poly

Default FALSE. If TRUE, will use a low-poly sphere.

normals

Default TRUE. Whether to include vertex normals.

material

Default material_list() (default values). Specify the material of the object.

Value

List describing the mesh.

Examples

if(run_documentation()) {
#Generate a sphere in the Cornell box.
generate_cornell_mesh() |>
  add_shape(sphere_mesh(position = c(555/2, 555/2, 555/2), radius = 100)) |>
  rasterize_scene(light_info = directional_light(c(0,0.5,-1)))
}
#> Setting default values for Cornell box: lookfrom `c(278,278,-800)` lookat `c(278,278,0)` fov `40` .

if(run_documentation()) {
#Generate a shiny sphere in the Cornell box
generate_cornell_mesh() |>
  add_shape(sphere_mesh(position = c(555/2, 100, 555/2), radius = 100, 
                    material = material_list(diffuse = "gold",type="phong"))) |>
  rasterize_scene(light_info = directional_light(c(0.5,0.5,-1)))
}
#> Setting default values for Cornell box: lookfrom `c(278,278,-800)` lookat `c(278,278,0)` fov `40` .

if(run_documentation()) {
#Generate an ellipsoid in the Cornell box
generate_cornell_mesh() |>
  add_shape(sphere_mesh(position = c(555/2, 210, 555/2), radius = 100, 
                        angle=c(0,30,0), scale = c(0.5,2,0.5),
                        material = material_list(diffuse = "dodgerblue",type="phong"))) |>
  rasterize_scene(light_info = directional_light(c(0.5,0.5,-1)))
}
#> Setting default values for Cornell box: lookfrom `c(278,278,-800)` lookat `c(278,278,0)` fov `40` .