picking_structure

Result of a picking (picking_spheres...) with the selected index, the 3D position and the ray.

Fields and methods

Members of the struct picking_structure. Most of what you do with a CGP type goes through the free functions listed below.

`bool active`	True if the ray hit an element, false otherwise (the other fields except the ray are then not meaningful).
`int index`	Index of the picked element in the array given to the picking function, -1 when nothing is picked.
`vec3 position`	3D position of the hit point on the picked sphere.
`vec3 normal`	Normal at the hit point: the sphere normal for picking_spheres, the vertex normal for picking_mesh_vertex_as_sphere.
`vec3 ray_origin`	Origin of the picking ray, the position of the camera.
`vec3 ray_direction`	Unit direction of the picking ray, through the clicked point of the screen.
`vec2 screen_clicked`	Clicked position in relative screen coordinates in [-1,1], as given to the picking function.

Builds an empty picking result: active false, index -1, zero vectors. src

None.

Documented on another page

picking_mesh_vertex_as_sphereCasts the camera ray through the screen position and returns the closest vertex whose sphere of radius picking_distance it hits, with the hit point, the vertex normal and the vertex index (active is false if none).on vec2
picking_spheresCast a ray through a screen position (normalized device coordinates) and return the closest hit among spheres of common radius, with its index, position and normal.on vec2

None.