X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=world.h;h=007d6721b93a0cf5294487ec667f9ab604b2cc26;hb=86dbcd5796ed674ca9433cce1ace8bef322cd121;hp=66922cd2604e8f31b726769f245c026977f01353;hpb=ecc4dfbfb3adf91d2dfc03ba0ec9a821fcc2390c;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/world.h b/world.h
index 66922cd..007d672 100644
--- a/world.h
+++ b/world.h
@@ -5,16 +5,19 @@ static int ray_world( v3f pos, v3f dir, ray_hit *hit );
 #ifndef WORLD_H
 #define WORLD_H
 
+#include "network.h"
+#include "network_msg.h"
 #include "scene.h"
 #include "terrain.h"
 #include "render.h"
-#include "water.h"
 #include "rigidbody.h"
 #include "gate.h"
 #include "bvh.h"
 #include "lighting.h"
 #include "model.h"
 
+#include "traffic.h" /*TODO: -> world_traffic.h */
+
 #include "shaders/terrain.h"
 #include "shaders/sky.h"
 #include "shaders/planeinf.h"
@@ -22,480 +25,340 @@ static int ray_world( v3f pos, v3f dir, ray_hit *hit );
 #include "shaders/vblend.h"
 #include "shaders/gpos.h"
 #include "shaders/fscolour.h"
+#include "shaders/alphatest.h"
+
+enum { k_max_ui_segments = 32 };
+enum { k_route_ui_max_verts = 2000 };
+enum { k_route_ui_max_indices = 3000 };
 
 static struct gworld
 {
    /* gameplay */
-   v3f tutorial;
-   teleport_gate gates[64];
-   u32 gate_count;
-   
-   /* Physics */
-   rigidbody temp_rbs[128];
-   u32 rb_count;
-   bh_tree bhcubes;
-   
-   /* Rendering & geometry */
-   scene geo, foliage, props;
-   submodel sm_road, sm_terrain;
+   struct respawn_point
+   {
+      v3f co;
+      v4f q;
+      char name[32];
+   }
+   spawns[32];
+   u32 spawn_count;
 
-   glmesh skybox, skydome;
-   submodel dome_upper,
-            dome_lower;
-}
-world;
+   struct subworld_routes
+   {
+      struct route_node
+      {
+         v3f co, right, up, h;
+         u32 next[2];
 
-vg_tex2d tex_terrain_colours = { .path = "textures/gradients.qoi",
-                                 .flags = VG_TEXTURE_CLAMP|VG_TEXTURE_NEAREST };
+         u32 special_type, special_id, current_refs, ref_count;
+         u32 route_ids[4];    /* Gates can be linked into up to four routes */
+      }
+      *nodes;
 
-vg_tex2d tex_terrain_noise = { .path = "textures/garbage.qoi",
-                                 .flags = VG_TEXTURE_NEAREST };
+      u32 node_count,
+          node_cap;
 
-static void ray_world_get_tri( ray_hit *hit, v3f tri[3] )
-{
-   for( int i=0; i<3; i++ )
-      v3_copy( world.geo.verts[ hit->tri[i] ].co, tri[i] );
-}
+      struct route
+      {
+         u32 track_id;
+         v4f colour;
 
-static int ray_world( v3f pos, v3f dir, ray_hit *hit )
-{
-   return scene_raycast( &world.geo, pos, dir, hit );
-}
+         u32 start;
+         mdl_submesh sm;
+         
+         int active;
+         float factive;
 
-static int ray_hit_is_ramp( ray_hit *hit )
-{
-   return hit->tri[0] < world.sm_road.vertex_count;
-}
+         double best_lap, latest_pass; /* Session */
 
-static void world_register(void)
-{
-   shader_terrain_register();
-   shader_sky_register();
-   shader_planeinf_register();
-   shader_gpos_register();
-   shader_fscolour_register();
-}
+         struct 
+         {
+            GLuint vao, vbo, ebo;
 
-static void world_free(void)
-{
-   /* TODO.. */
-}
+            u32  indices_head;
+            u32  vertex_head;
 
-static void render_world_depth( m4x4f projection, m4x3f camera );
-static void world_load(void)
-{
-   /*
-    * Setup scene
-    *
-    * TODO: Call world_free when its ready here
-    *
-    */
-   scene_init( &world.geo );
-   model *mworld = vg_asset_read( "models/mp_dev.mdl" );
-
-   for( int i=0; i<mworld->layer_count; i++ )
-   {
-      submodel *sm = model_get_submodel( mworld, i );
-      if( !strcmp( sm->material, "surf" ) )
-         scene_add_model( &world.geo, mworld, sm, sm->pivot, 0.0f, 1.0f );
+            float last_notch;
 
-   }
-   for( int i=0; i<mworld->layer_count; i++ )
-   {
-      submodel *sm = model_get_submodel( mworld, i );
-      if( !strcmp( sm->material, "vertex_blend" ) )
-      {
-         m4x3f transform;
-         q_m3x3( sm->q, transform );
-         v3_copy( sm->pivot, transform[3] );
-         scene_add_foliage( &world.geo, mworld, sm, transform );
-      }
-   }
-   scene_copy_slice( &world.geo, &world.sm_road );
+            struct route_ui_segment
+            {
+               float length;
+               u32 vertex_start, vertex_count,
+                   index_start, index_count;
+            }
+            segments[k_max_ui_segments];
 
-   for( int i=0; i<mworld->layer_count; i++ )
-   {
-      submodel *sm = model_get_submodel( mworld, i );
-      if( !strcmp( sm->material, "terrain" ) )
-         scene_add_model( &world.geo, mworld, sm, sm->pivot, 0.0f, 1.0f );
-   }
+            u32 segment_start, segment_count, fade_start, fade_count;
+            double fade_timer_start;
+            float xpos;
+         }
+         ui;
 
+         m4x3f scoreboard_transform;
+      }
+      *routes;
 
-   scene_copy_slice( &world.geo, &world.sm_terrain );
+      u32 route_count,
+          route_cap;
 
-   /* 
-    * TODO: Parametric marker import
-    */
-   v3_copy( model_marker_get( mworld, "start" )->co, world.tutorial );
-   
-   /* 
-    * Initialize gates
-    */
-   
-   world.gate_count = 0;
-   for( int i=0; i<mworld->marker_count; i++ )
-   {
-      model_marker *ga = model_get_marker( mworld, i );
-      
-      if( ga->classtype == k_classtype_gate )
+      struct route_gate
       {
-         struct classtype_gate *data = get_entdata_raw( mworld, ga );
+         teleport_gate gate;
          
-         if( data->target )
+         u32 node_id;
+
+         struct route_timing
          {
-            model_marker *gb = model_get_marker( mworld, data->target );
-            
-            teleport_gate *gate = &world.gates[ world.gate_count ++ ];
-            
-            v3_copy( ga->co, gate->co[0] );
-            v3_copy( gb->co, gate->co[1] );
-            v4_copy( ga->q, gate->q[0] );
-            v4_copy( gb->q, gate->q[1] );
-            v2_copy( ga->s, gate->dims );
-
-            gate_transform_update( gate );
-         }
+            u32 version; /* Incremented on every teleport */
+            double time;
+         } 
+         timing;
       }
-   }
+      *gates;
 
-   /*
-    * Load water mesh (1 per world)
-    */
-   for( int i=0; i<mworld->layer_count; i++ )
-   {
-      submodel *sm = model_get_submodel( mworld, i );
-      if( !strcmp( sm->material, "water" ) )
+      struct route_collector
       {
-         glmesh surf;
-         model_unpack_submodel( mworld, &surf, sm );
-               
-         water_init();
-         water_set_surface( &surf, sm->pivot[1] );
-
-         vg_info( "%.3f\n", sm->pivot[1] );
-
-         break;
+         struct route_timing timing;
       }
-   }
-   
-   scene_bh_create( &world.geo );
-   scene_upload( &world.geo );
-
-   scene_init( &world.foliage );
-   model *mfoliage = vg_asset_read("models/rs_foliage.mdl");
-
-   /*
-    * TODO: Load any other meshes into the foliage scene, and create rbs for
-    *       them.
-    *
-    *       then compute bvh
-    */
-   
-   for( int i=0; i<mworld->layer_count; i++ )
-   {
-      submodel *sm = model_get_submodel( mworld, i );
-      if( !strcmp( sm->material, "surf" ) ||
-          !strcmp( sm->material, "terrain" ) ||
-          !strcmp( sm->material, "water" ) ||
-          !strcmp( sm->material, "vertex_blend") )
-         continue;
-
-      m4x3f transform;
-      q_m3x3( sm->q, transform );
-      v3_copy( sm->pivot, transform[3] );
-      scene_add_foliage( &world.foliage, mworld, sm, transform );
-
-      rigidbody *rb = &world.temp_rbs[ world.rb_count ++ ];
-
-      box_copy( sm->bbx, rb->bbx );
-      v3_copy( sm->pivot, rb->co );
-      rb_init( rb );
-      v4_copy( sm->q, rb->q );
-      rb_update_transform( rb );
-   }
+      *collectors;
 
-   v3f volume;
-   v3_sub( world.geo.bbx[1], world.geo.bbx[0], volume );
-   volume[1] = 1.0f;
+      u32 gate_count,
+          gate_cap,
+          collector_count,
+          collector_cap;
 
-   m4x3f transform;
+      u32 active_gate,
+          current_run_version;
 
-   submodel *sm_blob = submodel_get( mfoliage, "blob" ),
-            *sm_tree = submodel_get( mfoliage, "tree" );
+      scene scene_lines;
+   }
+   routes;
 
-   for( int i=0;i<100000;i++ )
+   struct subworld_sfd
    {
-      v3f pos;
-      v3_mul( volume, (v3f){ vg_randf(), 1000.0f, vg_randf() }, pos );
-      pos[1] = 1000.0f;
-      v3_add( pos, world.geo.bbx[0], pos );
-      
-      ray_hit hit;
-      hit.dist = INFINITY;
-
-      if( ray_world( pos, (v3f){0.0f,-1.0f,0.0f}, &hit ))
-      {
-         if( hit.normal[1] > 0.8f && !ray_hit_is_ramp(&hit) &&
-             hit.pos[1] > water_height()+10.0f )
-         {
-            v4f qsurface, qrandom;
-            v3f axis;
+      scene mesh;
+      mdl_submesh *sm_module, *sm_card;
+      glmesh temp;
 
-            v3_cross( (v3f){0.0f,1.0f,0.0f}, hit.normal, axis );
-
-            float angle = v3_dot(hit.normal,(v3f){0.0f,1.0f,0.0f});
-            q_axis_angle( qsurface, axis, angle );
-            q_axis_angle( qrandom, (v3f){0.0f,1.0f,0.0f}, vg_randf()*VG_TAUf );
-            q_mul( qsurface, qrandom, qsurface );
-            q_m3x3( qsurface, transform );
+      struct sfd_instance
+      {
+         float *buffer;
 
-            v3_copy( hit.pos, transform[3] );
-            
-            if( vg_randf() < 0.0006f )
-            {
-               m3x3_identity( transform );
-               scene_add_foliage( &world.foliage, mfoliage, sm_tree, transform);
-            }
-            else
-               scene_add_foliage( &world.foliage, mfoliage, sm_blob, transform);
-         }
-      }
+         u32 w,h;
+      } 
+      tester;
    }
+   sfd;
 
-   free( mfoliage );
-   scene_upload( &world.foliage );
-   
-   
-   /* Prop layer */
-   scene_init( &world.props );
-   for( int i=0; i<mworld->layer_count; i++ )
-   {
-      submodel *sm = model_get_submodel( mworld, i );
-      if( !strcmp( sm->material, "vertex_blend" ) )
-      {
-         m4x3f transform;
-         q_m3x3( sm->q, transform );
-         v3_copy( sm->pivot, transform[3] );
-         scene_add_foliage( &world.props, mworld, sm, transform );
-      }
-   }
+   /* Paths */
+   traffic_node traffic[128];
+   u32 traffic_count;
 
-   scene_upload( &world.props );
-   free( mworld );
-   bh_create( &world.bhcubes, 
-         &bh_system_rigidbodies, world.temp_rbs, world.rb_count );
+#if 0
+   traffic_driver van_man[6];
+#endif
    
-   /* 
-    * Rendering the depth map
-    */
-   m4x4f ortho;
-   m4x3f camera;
-
-   v3f extent;
-   v3_sub( world.geo.bbx[1], world.geo.bbx[0], extent );
-
-   float fl = world.geo.bbx[0][0],
-         fr = world.geo.bbx[1][0],
-         fb = world.geo.bbx[0][2],
-         ft = world.geo.bbx[1][2],
-         rl = 1.0f / (fr-fl),
-         tb = 1.0f / (ft-fb);
-
-   m4x4_zero( ortho );
-	ortho[0][0] = 2.0f * rl;
-	ortho[2][1] = 2.0f * tb;
-   ortho[3][0] = (fr + fl) * -rl;
-   ortho[3][1] = (ft + fb) * -tb;
-   ortho[3][3] = 1.0f;
-   m4x3_identity( camera );
-
-   glViewport( 0, 0, 1024, 1024 );
-   glDisable(GL_DEPTH_TEST);
-   glBindFramebuffer( GL_FRAMEBUFFER, gpipeline.fb_depthmap );
-   shader_fscolour_use();
-   shader_fscolour_uColour( (v4f){-9999.0f,-9999.0f,-9999.0f,-9999.0f} );
-   render_fsquad();
-
-   glEnable(GL_BLEND);
-   glBlendFunc(GL_ONE, GL_ONE);
-   glBlendEquation(GL_MAX);
-   render_world_depth( ortho, camera );
-   glDisable(GL_BLEND);
-   glEnable(GL_DEPTH_TEST);
-
-   /* 
-    * TODO: World settings entity
-    */
-   struct ub_world_lighting *winfo = &gpipeline.ub_world_lighting;
+   /* Physics */
    
-   v3f sundir = { 0.5f, 0.8f, 0.2f };
-   v3_normalize( sundir );
-   v3_copy( sundir, winfo->g_directional );
-   v3_copy( (v3f){ 1.2f,1.152f,1.08f }, winfo->g_sun_colour );
-   v3_copy( (v3f){ 0.15f,0.1f,0.2f }, winfo->g_shadow_colour );
-   v4_copy( wrender.plane, winfo->g_water_plane );
-
-   v4f bounds;
-   bounds[0] = world.geo.bbx[0][0];
-   bounds[1] = world.geo.bbx[0][2];
-   bounds[2] = 1.0f/ (world.geo.bbx[1][0]-world.geo.bbx[0][0]);
-   bounds[3] = 1.0f/ (world.geo.bbx[1][2]-world.geo.bbx[0][2]);
-   v4_copy( bounds, winfo->g_depth_bounds );
-
-   winfo->g_water_fog = 0.04f;
-   render_update_lighting_ub();
-}
+   /* Rendering & geometry */
+   scene geo, foliage;
+   rigidbody rb_geo;
 
-static void world_init(void)
-{
-   vg_tex2d_init( (vg_tex2d *[]){ &tex_terrain_colours, 
-                                  &tex_terrain_noise }, 2 );
+   /* TODO Maybe make this less hardcoded */
+   mdl_submesh sm_geo_std_oob, sm_geo_std, sm_geo_vb,
+               sm_foliage_main, sm_foliage_alphatest,
+               sm_graffiti, sm_subworld, sm_terrain;
 
+   glmesh skybox, skydome;
+   mdl_submesh dome_upper, dome_lower;
 
-   model *msky = vg_asset_read("models/rs_skydome.mdl");
-   model_unpack( msky, &world.skydome );
-   
-   world.dome_lower = *submodel_get( msky, "dome_lower" );
-   world.dome_upper = *submodel_get( msky, "dome_upper" );
+   glmesh cars;
+   mdl_submesh car_holden;
 
-   free(msky);
+   rigidbody mr_ball;
+
+   /* Load time */
+
+   struct instance_cache
+   {
+      mdl_header *mdl;
+      u32 pstr_file;
+   }
+   * instance_cache;
+   u32 instance_cache_count,
+       instance_cache_cap;
+
+   v3f render_gate_pos;
+   int active_route_board;
 }
+world;
 
 /*
- * Rendering
+ * API
  */
 
-static void bind_terrain_textures(void)
-{
-   vg_tex2d_bind( &tex_terrain_noise, 0 );
-   vg_tex2d_bind( &tex_terrain_colours, 1 );
-}
+static int ray_hit_is_ramp( ray_hit *hit );
+static int ray_hit_is_terrain( ray_hit *hit );
+static void ray_world_get_tri( ray_hit *hit, v3f tri[3] );
+static int ray_world( v3f pos, v3f dir, ray_hit *hit );
 
-static void render_props( m4x4f projection, v3f camera )
+/*
+ * Submodules
+ */
+#include "world_routes.h"
+#include "world_sfd.h"
+#include "world_audio.h"
+#include "world_render.h"
+#include "world_water.h"
+#include "world_gen.h"
+
+/* 
+ * -----------------------------------------------------------------------------
+ *                                    Events
+ * -----------------------------------------------------------------------------
+ */
+static void world_register(void)
 {
-   m4x3f identity_matrix;
-   m4x3_identity( identity_matrix );
-
-   shader_vblend_use();
-   shader_vblend_uTexGarbage(0);
-   shader_vblend_uTexGradients(1);
-   shader_link_standard_ub( _shader_vblend.id, 2 );
-   bind_terrain_textures();
-
-   shader_vblend_uPv( projection );
-   shader_vblend_uMdl( identity_matrix );
-   shader_vblend_uCamera( camera );
+   shader_terrain_register();
+   shader_sky_register();
+   shader_planeinf_register();
+   shader_gpos_register();
+   shader_fscolour_register();
+   shader_alphatest_register();
 
-   scene_bind( &world.props );
-   scene_draw( &world.props );
+   world_routes_register();
+   world_sfd_register();
+   world_water_register();
 }
 
-static void render_terrain( m4x4f projection, v3f camera )
+static void world_free(void)
 {
-   m4x3f identity_matrix;
-   m4x3_identity( identity_matrix );
-
-   shader_terrain_use();
-   shader_terrain_uTexGarbage(0);
-   shader_terrain_uTexGradients(1);
-   shader_link_standard_ub( _shader_terrain.id, 2 );
-   bind_terrain_textures();
-
-   shader_terrain_uPv( projection );
-   shader_terrain_uMdl( identity_matrix );
-   shader_terrain_uCamera( camera );
-
-   scene_bind( &world.geo );
-   scene_draw( &world.geo );
-
-   glDisable(GL_CULL_FACE);
-   scene_bind( &world.foliage );
-   scene_draw( &world.foliage );
-   glEnable(GL_CULL_FACE);
+   /* TODO.. */
+
+   world_sfd_free();
 }
 
-static void render_lowerdome( m4x3f camera )
+
+static void world_init(void)
 {
-   m4x4f projection, full;
-   pipeline_projection( projection, 0.4f, 1000.0f );
+   mdl_header *mcars = mdl_load( "models/rs_cars.mdl" );
+   mdl_unpack_glmesh( mcars, &world.cars );
+   mdl_node *nholden = mdl_node_from_name( mcars, "holden" );
+   world.car_holden = *mdl_node_submesh( mcars, nholden, 0 );
+   free(mcars);
+
 
-   m4x3f inverse;
-   m3x3_transpose( camera, inverse );
-   v3_copy((v3f){0.0f,0.0f,0.0f}, inverse[3]);
-   m4x3_expand( inverse, full );
-   m4x4_mul( projection, full, full );
+   mdl_header *msky = mdl_load("models/rs_skydome.mdl");
+   mdl_unpack_glmesh( msky, &world.skydome );
 
-   m4x3f identity_matrix;
-   m4x3_identity( identity_matrix );
+   mdl_node *nlower = mdl_node_from_name( msky, "dome_lower" ),
+            *nupper = mdl_node_from_name( msky, "dome_upper" );
    
-   shader_planeinf_use();
-   shader_planeinf_uMdl(identity_matrix);
-   shader_planeinf_uPv(full);
-   shader_planeinf_uCamera(camera[3]);
-   shader_planeinf_uPlane( (v4f){0.0f,1.0f,0.0f, water_height()} );
+   world.dome_lower = *mdl_node_submesh( msky, nlower, 0 );
+   world.dome_upper = *mdl_node_submesh( msky, nupper, 0 );
+   free(msky);
 
-   submodel_draw( &world.dome_lower );
+
+   /* Other systems */
+   world_render_init();
+   world_sfd_init();
+   world_audio_init();
 }
 
-static void render_sky(m4x3f camera)
+static void world_update( v3f pos )
 {
-   m4x4f projection, full;
-   pipeline_projection( projection, 0.4f, 1000.0f );
+   world_routes_update();
+   world_routes_debug();
+   
+   int closest = 0;
+   float min_dist = INFINITY;
 
-   m4x3f inverse;
-   m3x3_transpose( camera, inverse );
-   v3_copy((v3f){0.0f,0.0f,0.0f}, inverse[3]);
-   m4x3_expand( inverse, full );
-   m4x4_mul( projection, full, full );
+   for( int i=0; i<world.routes.route_count; i++ )
+   {
+      float d = v3_dist2( world.routes.routes[i].scoreboard_transform[3], pos );
 
-   m4x3f identity_matrix;
-   m4x3_identity( identity_matrix );
-   
-   shader_sky_use();
-   shader_sky_uMdl(identity_matrix);
-   shader_sky_uPv(full);
-   shader_sky_uTexGarbage(0);
-   shader_sky_uTime( vg_time );
+      if( d < min_dist )
+      {
+         min_dist = d;
+         closest = i;
+      }
+   }
 
-   vg_tex2d_bind( &tex_terrain_noise, 0 );
+   if( (world.active_route_board != closest) || network_scores_updated )
+   {
+      network_scores_updated = 0;
+      world.active_route_board = closest;
+      struct subworld_sfd *sfd = &world.sfd;
+
+      struct route *route = &world.routes.routes[closest];
+
+      u32 id = route->track_id;
+
+      if( id != 0xffffffff )
+      {
+         struct netmsg_board *local_board = &scoreboard_client_data.boards[id];
 
-   glDepthMask( GL_FALSE );
-   glDisable( GL_DEPTH_TEST );
+         for( int i=0; i<13; i++ )
+         {
+            sfd_encode( &sfd->tester, i, &local_board->data[27*i] );
+         }
+      }
+   }
+   
+   sfd_update( &world.sfd.tester );
 
-   mesh_bind( &world.skydome );
-   submodel_draw( &world.dome_upper );
+#if 0
+   rb_solver_reset();
+   rb_build_manifold_terrain_sphere( &world.mr_ball );
    
-   glEnable( GL_DEPTH_TEST );
-   glDepthMask( GL_TRUE );
+   for( int i=0; i<5; i++ )
+      rb_solve_contacts( rb_contact_buffer, rb_contact_count );
+
+   rb_iter( &world.mr_ball );
+   rb_update_transform( &world.mr_ball );
+   rb_debug( &world.mr_ball, 0 );
+
+   for( int i=0; i<vg_list_size(world.van_man); i++ )
+   {
+      traffic_drive( &world.van_man[i] );
+      traffic_visualize_car( &world.van_man[i] );
+   }
+#endif
 }
 
-static void render_world( m4x4f projection, m4x3f camera )
+/* 
+ * -----------------------------------------------------------------------------
+ *                              API implementation
+ * -----------------------------------------------------------------------------
+ */
+
+static void ray_world_get_tri( ray_hit *hit, v3f tri[3] )
 {
-   render_sky( camera );
-   render_terrain( projection, camera[3] );
-   /* render props... */
+   for( int i=0; i<3; i++ )
+      v3_copy( world.geo.verts[ hit->tri[i] ].co, tri[i] );
 }
 
-static void render_world_depth( m4x4f projection, m4x3f camera )
+static int ray_world( v3f pos, v3f dir, ray_hit *hit )
 {
-   m4x3f identity_matrix;
-   m4x3_identity( identity_matrix );
+   return scene_raycast( &world.geo, pos, dir, hit );
+}
 
-   shader_gpos_use();
-   shader_gpos_uCamera( camera[3] );
-   shader_gpos_uPv( projection );
-   shader_gpos_uMdl( identity_matrix );
-   
-   scene_bind( &world.geo );
-   scene_draw( &world.geo );
+static int ray_hit_is_terrain( ray_hit *hit )
+{
+   u32 valid_start = 0,
+       valid_end   = world.sm_terrain.vertex_count;
 
-   glDisable(GL_CULL_FACE);
-   scene_bind( &world.foliage );
-   scene_draw( &world.foliage );
-   glEnable(GL_CULL_FACE);
+   return (hit->tri[0] >= valid_start) &&
+          (hit->tri[0]  < valid_end);
+}
+
+static int ray_hit_is_ramp( ray_hit *hit )
+{
+   u32 valid_start = world.sm_geo_std.vertex_start,
+       valid_end   = world.sm_geo_vb.vertex_start;
 
-   scene_bind( &world.props );
-   scene_draw( &world.props );
+   return (hit->tri[0] >= valid_start) &&
+          (hit->tri[0]  < valid_end);
 }
 
 #endif /* WORLD_H */