src/graphics.rs

@@ -419,22 +419,26 @@ impl GraphicsState{
 			//this mut be combined in a more complex way if the models use different render patterns per group
 			let mut indices=Vec::new();
 			for poly in model.polys.polys(){
-				for end_index in 2..poly.len(){
-					for index in [0,end_index-1,end_index]{
-						let vertex_index=poly[index];
-						indices.push(*index_from_vertex.entry(vertex_index).or_insert_with(||{
-							let i=vertices.len();
-							let vertex=&model.unique_vertices[vertex_index.get() as usize];
-							vertices.push(GraphicsVertex{
-								pos:model.unique_pos[vertex.pos.get() as usize],
-								tex:model.unique_tex[vertex.tex.get() as usize],
-								normal:model.unique_normal[vertex.normal.get() as usize],
-								color:model.unique_color[vertex.color.get() as usize],
-							});
-							i
-						}));
-					}
-				}
+				let mut poly_vertices=poly.iter()
+				.map(|&vertex_index|*index_from_vertex.entry(vertex_index).or_insert_with(||{
+					let i=vertices.len();
+					let vertex=&model.unique_vertices[vertex_index.get() as usize];
+					vertices.push(GraphicsVertex{
+						pos:model.unique_pos[vertex.pos.get() as usize],
+						tex:model.unique_tex[vertex.tex.get() as usize],
+						normal:model.unique_normal[vertex.normal.get() as usize],
+						color:model.unique_color[vertex.color.get() as usize],
+					});
+					i
+				}));
+
+				let a=poly_vertices.next().unwrap();
+				let mut b=poly_vertices.next().unwrap();
+				
+				poly_vertices.for_each(|c|{
+					indices.extend([a,b,c]);
+					b=c;
+				});
 			}
 			GraphicsMeshOwnedRenderConfig{
 				instances:model.instances,