/**
* @brief Sorts the draw elements for the current frame. Once elements are
* sorted, particles for the current frame are also updated.
*/
void R_SortElements(void *data) {
R_AddBspSurfaceElements(&r_model_state.world->bsp->sorted_surfaces->blend, ELEMENT_BSP_SURFACE_BLEND);
R_AddBspSurfaceElements(&r_model_state.world->bsp->sorted_surfaces->blend_warp, ELEMENT_BSP_SURFACE_BLEND_WARP);
if (!r_element_state.count) {
return;
}
R_SortElements_(r_element_state.elements, r_element_state.count);
R_UpdateParticleState();
R_SortParticles_(r_element_state.elements, r_element_state.count);
}
/*
* @brief Generates primitives for the specified particle elements. Each
* particle's index into the shared array is written to the element's data
* field.
*/
void R_UpdateParticles(r_element_t *e, const size_t count) {
size_t i, j;
R_UpdateParticleState();
for (i = j = 0; i < count; i++, e++) {
if (e->type == ELEMENT_PARTICLE) {
r_particle_t *p = (r_particle_t *) e->element;
R_ParticleVerts(p, &r_particle_state.verts[j * 3 * 4]);
R_ParticleTexcoords(p, &r_particle_state.texcoords[j * 2 * 4]);
R_ParticleColor(p, &r_particle_state.colors[j * 4 * 4]);
e->data = (void *) (uintptr_t) j++;
}
}
}
