load zeroed UVs as fallback in gltf loader (#1803)

jakobhellermann · jakobhellermann · commit cf8ef7660cbd · 2021-05-06T03:08:53.000Z
fixes a lot of gltf loading failures (see #1802)
diff --git a/crates/bevy_gltf/src/loader.rs b/crates/bevy_gltf/src/loader.rs
@@ -140,6 +140,11 @@ async fn load_gltf<'a, 'b>(
                 .map(|v| VertexAttributeValues::Float32x2(v.into_f32().collect()))
             {
                 mesh.set_attribute(Mesh::ATTRIBUTE_UV_0, vertex_attribute);
+            } else {
+                let len = mesh.count_vertices();
+                let uvs = vec![[0.0, 0.0]; len];
+                bevy_log::debug!("missing `TEXCOORD_0` vertex attribute, loading zeroed out UVs");
+                mesh.set_attribute(Mesh::ATTRIBUTE_UV_0, uvs);
             }
 
             if let Some(vertex_attribute) = reader

Original file line number	Diff line number	Diff line change
`@@ -140,6 +140,11 @@ async fn load_gltf<'a, 'b>(`
`140`	`140`	`.map(\|v\| VertexAttributeValues::Float32x2(v.into_f32().collect()))`
`141`	`141`	`{`
`142`	`142`	`mesh.set_attribute(Mesh::ATTRIBUTE_UV_0, vertex_attribute);`
	`143`	`+ } else {`
	`144`	`+ let len = mesh.count_vertices();`
	`145`	`+ let uvs = vec![[0.0, 0.0]; len];`
	`146`	+ bevy_log::debug!("missing `TEXCOORD_0` vertex attribute, loading zeroed out UVs");
	`147`	`+ mesh.set_attribute(Mesh::ATTRIBUTE_UV_0, uvs);`
`143`	`148`	`}`
`144`	`149`
`145`	`150`	`if let Some(vertex_attribute) = reader`