Group Objects

group_objects(scene, pivot_point = c(0, 0, 0), group_translate = c(0,
  0, 0), group_angle = c(0, 0, 0), group_order_rotation = c(1, 2, 3))

Arguments

scene

Tibble of pre-existing object locations and properties to group together.

pivot_point

Defaults to the mean location of all the objects. The point about which to pivot and move the group.

group_translate

Default `c(0,0,0)`. Vector indicating where to offset the group.

group_angle

Default `c(0,0,0)`. Angle of rotation around the x, y, and z axes, applied in the order specified in `order_rotation`.

group_order_rotation

Default `c(1,2,3)`. The order to apply the rotations, referring to "x", "y", and "z".

Value

Tibble of grouped object locations and properties.

Examples

#Generate the ground and add some objects scene = generate_cornell() %>% add_object(cube(x=555/2,y=555/8,z=555/2,width=555/4)) %>% add_object(cube(x=555/2,y=555/4+555/16,z=555/2,width=555/8))
render_scene(scene,lookfrom=c(278,278,-800),lookat = c(278,278,0), aperture=0, samples=500, fov=50, parallel=TRUE, clamp_value=5)
#Group the entire room and rotate around its center, but keep the cube in the same place. scene2 = group_objects(generate_cornell(), pivot_point=c(555/2,555/2,555/2), group_angle=c(0,30,0)) %>% add_object(cube(x=555/2,y=555/8,z=555/2,width=555/4)) %>% add_object(cube(x=555/2,y=555/4+555/16,z=555/2,width=555/8))
render_scene(scene2,lookfrom=c(278,278,-800),lookat = c(278,278,0), aperture=0, samples=500, fov=50, parallel=TRUE, clamp_value=5)
#Now group the cubes instead of the Cornell box, and rotate/translate them together twocubes = cube(x=555/2,y=555/8,z=555/2,width=555/4) %>% add_object(cube(x=555/2, y=555/4 + 555/16, z=555/2, width=555/8)) scene3 = generate_cornell() %>% add_object(group_objects(twocubes, group_translate = c(0,50,0),group_angle = c(0,45,0)))
render_scene(scene3,lookfrom=c(278,278,-800),lookat = c(278,278,0), aperture=0, samples=500, fov=50, parallel=TRUE, clamp_value=5)