-VG_STATIC void world_scene_compute_light_clusters( scene *sc )
-{
- for( int i=0; i<sc->vertex_count; i++ )
- {
- scene_vert *vert = &sc->arrvertices[i];
- vert->lights[0] = 255;
- vert->lights[1] = 255;
- vert->lights[2] = 255;
- vert->lights[3] = 255;
-
- float distances[4] = { INFINITY, INFINITY, INFINITY, INFINITY };
-
- for( int j=0; j<world.light_count; j ++ )
- {
- float dist = v3_dist2( world.lights[j].co, vert->co );
-
- int best_pos = 4;
- for( int k=best_pos-1; k>=0; k -- )
- if( dist < distances[k] )
- best_pos = k;
-
- if( best_pos < 4 )
- {
- for( int k=3; k>best_pos; k -- )
- {
- distances[k] = distances[k-1];
- vert->lights[k] = vert->lights[k-1];
+ int total_cubes = icubes_count[0]*icubes_count[1]*icubes_count[2];
+
+ u32 data_size = vg_align8(total_cubes*sizeof(u32)*2),
+ hdr_size = vg_align8(sizeof(struct light_indices_upload_info));
+
+ vg_async_item *call = vg_async_alloc( data_size + hdr_size );
+ struct light_indices_upload_info *info = call->payload;
+ info->data = ((u8*)call->payload) + hdr_size;
+ info->world = world;
+ u32 *cubes_index = info->data;
+
+ for( int i=0; i<3; i++ )
+ info->count[i] = icubes_count[i];
+
+ vg_info( "Computing light cubes (%d) [%f %f %f] -> [%f %f %f]\n",
+ total_cubes, cubes_min[0], -cubes_min[2], cubes_min[1],
+ cubes_max[0], -cubes_max[2], cubes_max[1] );
+ v3_copy( cubes_min, world->ub_lighting.g_cube_min );
+
+ float bound_radius = v3_length( cube_size );
+
+ for( int iz = 0; iz<icubes_count[2]; iz ++ ){
+ for( int iy = 0; iy<icubes_count[1]; iy++ ){
+ for( int ix = 0; ix<icubes_count[0]; ix++ ){
+ boxf bbx;
+ v3_div( (v3f){ ix, iy, iz }, world->ub_lighting.g_cube_inv_range,
+ bbx[0] );
+ v3_div( (v3f){ ix+1, iy+1, iz+1 },
+ world->ub_lighting.g_cube_inv_range,
+ bbx[1] );
+
+ v3_add( bbx[0], world->ub_lighting.g_cube_min, bbx[0] );
+ v3_add( bbx[1], world->ub_lighting.g_cube_min, bbx[1] );
+
+ v3f center;
+ v3_add( bbx[0], bbx[1], center );
+ v3_muls( center, 0.5f, center );
+
+ u32 indices[6] = { 0, 0, 0, 0, 0, 0 };
+ u32 count = 0;
+
+ float influences[6] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+ const int N = vg_list_size( influences );
+
+ for( u32 j=0; j<mdl_arrcount(&world->ent_light); j ++ ){
+ ent_light *light = mdl_arritm( &world->ent_light, j );
+ v3f closest;
+ closest_point_aabb( light->transform.co, bbx, closest );
+
+ float dist = v3_dist( closest, light->transform.co ),
+ influence = 1.0f/(dist+1.0f);
+
+ if( dist > light->range )
+ continue;
+
+ if( light->type == k_light_type_spot){
+ v3f local;
+ m4x3_mulv( light->inverse_world, center, local );
+
+ float r = fsd_cone_infinite( local, light->angle_sin_cos );
+
+ if( r > bound_radius )
+ continue;
+ }
+
+ int best_pos = N;
+ for( int k=best_pos-1; k>=0; k -- )
+ if( influence > influences[k] )
+ best_pos = k;
+
+ if( best_pos < N ){
+ for( int k=N-1; k>best_pos; k -- ){
+ influences[k] = influences[k-1];
+ indices[k] = indices[k-1];
+ }
+
+ influences[best_pos] = influence;
+ indices[best_pos] = j;
+ }