Group Objects
Group and transform objects together. Currently only supports a single level of grouping.
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), group_scale = c(1, 1, 1) )
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". |
group_scale |
Default 'c(1,1,1)'. Scaling factor for x, y, and z directions for all objects in group. |
Tibble of grouped object locations and properties.
#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 cubes 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)
#Flatten and stretch the cubes together on two axes
scene4 = generate_cornell() %>%
add_object(group_objects(twocubes, group_translate = c(0,-40,0),
group_angle = c(0,45,0), group_scale = c(2,0.5,1)))
render_scene(scene4,lookfrom=c(278,278,-800),lookat = c(278,278,0), aperture=0,
samples=500, fov=50, parallel=TRUE, clamp_value=5)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.