Package org.lwjgl.util.par

Class ParOctasphere

java.lang.Object
org.lwjgl.util.par.ParOctasphere
public class ParOctasphere extends Object
Bindings to par_octasphere.h, a tiny malloc-free library that generates triangle meshes for spheres, rounded boxes, and capsules.

Usage example:


 // Specify a 100x100x20 rounded box.
 const par_octasphere_config cfg = {
   .corner_radius = 5,
   .width = 100,
   .height = 100,
   .depth = 20,
   .num_subdivisions = 3,
 };
 
 // Allocate memory for the mesh and opt-out of normals.
 uint32_t num_indices;
 uint32_t num_vertices;
 par_octasphere_get_counts(&cfg, &num_indices, &num_vertices);
 par_octasphere_mesh mesh = {
   .positions = malloc(sizeof(float) * 3 * num_vertices),
   .normals = NULL,
   .texcoords = malloc(sizeof(float) * 2 * num_vertices),
   .indices = malloc(sizeof(uint16_t) * num_indices),
 };
 
 // Generate vertex coordinates, UV's, and triangle indices.
 par_octasphere_populate(&cfg, &mesh);

To generate a sphere: set width, height, and depth to 0 in your configuration. To generate a capsule shape: set only two of these dimensions to 0.

  • Field Details

    • par_octasphere_PAR_OCTASPHERE_MAX_SUBDIVISIONS

      public static final int par_octasphere_PAR_OCTASPHERE_MAX_SUBDIVISIONS
      See Also:

    • par_octasphere_UV_LATLONG

      public static final int par_octasphere_UV_LATLONG
      par_octasphere_uv_mode
      See Also:

    • par_octasphere_NORMALS_SMOOTH

      public static final int par_octasphere_NORMALS_SMOOTH
      par_octasphere_normals_mode
      See Also:

  • Method Details

    • npar_octasphere_get_counts

      public static void npar_octasphere_get_counts(long config, long num_indices, long num_vertices)
      Unsafe version of: get_counts

    • par_octasphere_get_counts

      public static void par_octasphere_get_counts(ParOctasphereConfig config, IntBuffer num_indices, IntBuffer num_vertices)
      Computes the maximum possible number of indices and vertices for the given octasphere config.

    • npar_octasphere_populate

      public static void npar_octasphere_populate(long config, long mesh)
      Unsafe version of: populate

    • par_octasphere_populate

      public static void par_octasphere_populate(ParOctasphereConfig config, ParOctasphereMesh mesh)
      Populates a pre-allocated mesh structure with indices and vertices.

    • npar_octasphere_get_counts

      public static void npar_octasphere_get_counts(long config, int[] num_indices, int[] num_vertices)
      Array version of: npar_octasphere_get_counts(long, long, long)

    • par_octasphere_get_counts

      public static void par_octasphere_get_counts(ParOctasphereConfig config, int[] num_indices, int[] num_vertices)
      Array version of: get_counts