+ vg_info( "Executing awesome algorithm!\n" );
+
+ f32 accum = 0.0f;
+
+ v3f vol;
+ v3_sub( world->scene_geo.bbx[1], world->scene_geo.bbx[0], vol );
+ v3_div( (v3f){1.0f,1.0f,1.0f}, vol, vol );
+
+ u8 colour[] = { 80,80,80,255 };
+ v3f light_dir = {0.3f,0.8f,0.1f};
+ v3_normalize( light_dir );
+
+ for( u32 k=1; k<=10; k++ ){
+ f32 rate = 50.0f * (1.0f/(float)k);
+
+ for( u32 i=0; i<world->scene_geo.indice_count/3; i++ ){
+ u32 *tri = &world->scene_geo.arrindices[i*3];
+ struct world_surface *surf = world_tri_index_surface( world, tri[0] );
+
+ if( surf->info.shader == k_shader_boundary ||
+ surf->info.shader == k_shader_invisible ) continue;
+
+ if( !(surf->info.flags & k_material_flag_preview_visibile) ) continue;
+
+ scene_vert *va = &world->scene_geo.arrvertices[tri[0]],
+ *vb = &world->scene_geo.arrvertices[tri[1]],
+ *vc = &world->scene_geo.arrvertices[tri[2]];
+
+ v3f v0, v1, vn;
+ v3_sub( vb->co, va->co, v0 );
+ v3_sub( vc->co, va->co, v1 );
+ v3_cross( v0, v1, vn );
+ if( vn[1] < 0.0f ) continue;
+
+ accum += v3_length(vn)*0.5f;
+
+ v3_normalize( vn );
+
+ while( accum > rate ){
+ accum -= rate;
+
+ if( generated_points >= POINTCLOUD_POINTS ){
+ goto too_many_points;
+ }
+
+ v2f co = { vg_randf64(), vg_randf64() };
+ if( v2_length2(co) > 0.5f ){
+ co[0] = 1.0f-co[0];
+ co[1] = 1.0f-co[1];
+ }
+
+ v3f pt;
+ v3_muls( v0, co[0], pt );
+ v3_muladds( pt, v1, co[1], pt );
+ v3_add( va->co, pt, pt );
+
+ if( pt[1] < world->water.height ) continue;
+ struct pointcloud_vert *vert = &cloud_data[generated_points ++];
+
+ v3f pos;
+ v3_sub( pt, world->scene_geo.bbx[0], pos );
+ v3_mul( pos, vol, pos );
+
+ for( u32 j=0; j<3; j++ ){
+ vert->pos[j] = vg_clampf(pos[j],0.0f,1.0f) * 65535.0f;
+ vert->norm[j] = vg_clampf(vn[j],-1.0f,1.0f) * 127.0f;
+ }
+
+ f32 brightness = vg_clampf( v3_dot( vn, light_dir ), 0.0f, 1.0f );
+
+ v4f col = {0.0f,0.0f,0.0f,0.0f};
+ if( surf->info.surface_prop == k_surface_prop_wood ){
+ v4_copy( (v4f){0.66f,0.6f,0.5f}, col );
+ }
+ else if( surf->info.surface_prop == k_surface_prop_grass ){
+ v4_copy( (v4f){0.42f,0.5f,0.33f}, col );
+ }
+ else if( surf->info.surface_prop == k_surface_prop_concrete ){
+ v4_copy( (v4f){0.57f,0.57f,0.55f}, col );
+ }
+ else if( surf->info.surface_prop == k_surface_prop_metal ){
+ v4_copy( (v4f){0.76f,0.76f,0.75f}, col );
+ }
+ else{
+ v4_copy( (v4f){0.2f,0.2f,0.2f}, col );
+ }
+
+ v4_copy( (v4f){0.2f,0.2f,0.26f}, col );
+ v3_muls( col, brightness*0.25f, col );
+
+ for( u32 j=0; j<4; j++ ){
+ vert->colour[j] = col[j] * 255.0f;
+ }
+ }
+ }