Use per-face vertex lighting for improved geometry definition and less light leaking between sharp-angled surfaces.

world.c

@@ -231,6 +231,8 @@ static void world_drawface(const world_t *world, const ps1bsp_face_t *face)
     cam_vec.vz = center.vz - cam_pos.vz;
     
     const ps1bsp_plane_t *plane = &world->planes[face->planeId];
+    // NOTE: this value could be REALLY useful for determining the tessellation subdivisions. It has camera distance *and* angle in it.
+    // Just include the face size/area for an approximate screen size. Maybe also separate x/y/z for angle-dependent tessellation.
     short dot = world_planeDot(&cam_vec, plane);
     if ((dot >= 0) ^ face->side)
         return;
@@ -244,7 +246,7 @@ static void world_drawface(const world_t *world, const ps1bsp_face_t *face)
     {
         const ps1bsp_vertex_t *vert = &world->vertices[faceVertex->index];
         vecs[vertIdx] = *((SVECTOR*)vert);
-        vecs[vertIdx].pad = vert->baseLight;
+        vecs[vertIdx].pad = faceVertex->light;
     }
 
     if (face->numFaceVertices == 3) // Special case: draw single triangles using the simplest method