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GLTF loader: handle warning NODE_SKINNED_MESH_WITHOUT_SKIN #9360

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merged 3 commits into from Oct 13, 2023
Merged

GLTF loader: handle warning NODE_SKINNED_MESH_WITHOUT_SKIN #9360

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4a6f830
fix when possible, warn when not
mockersf Aug 4, 2023
cec0afa
clippy
mockersf Aug 4, 2023
151420c
more clippy
mockersf Aug 4, 2023
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27 changes: 25 additions & 2 deletions crates/bevy_gltf/src/loader.rs
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Expand Up @@ -7,7 +7,7 @@ use bevy_core::Name;
use bevy_core_pipeline::prelude::Camera3dBundle;
use bevy_ecs::{entity::Entity, world::World};
use bevy_hierarchy::{BuildWorldChildren, WorldChildBuilder};
use bevy_log::warn;
use bevy_log::{error, warn};
use bevy_math::{Mat4, Vec3};
use bevy_pbr::{
AlphaMode, DirectionalLight, DirectionalLightBundle, PbrBundle, PointLight, PointLightBundle,
Expand Down Expand Up @@ -35,7 +35,7 @@ use gltf::{
accessor::Iter,
mesh::{util::ReadIndices, Mode},
texture::{MagFilter, MinFilter, WrappingMode},
Material, Node, Primitive,
Material, Node, Primitive, Semantic,
};
use serde::Deserialize;
use std::{collections::VecDeque, path::Path};
Expand Down Expand Up @@ -216,6 +216,17 @@ async fn load_gltf<'a, 'b>(

let mut meshes = vec![];
let mut named_meshes = HashMap::default();
let mut meshes_on_skinned_nodes = HashSet::default();
let mut meshes_on_non_skinned_nodes = HashSet::default();
for gltf_node in gltf.nodes() {
if gltf_node.skin().is_some() {
if let Some(mesh) = gltf_node.mesh() {
meshes_on_skinned_nodes.insert(mesh.index());
}
} else if let Some(mesh) = gltf_node.mesh() {
meshes_on_non_skinned_nodes.insert(mesh.index());
}
}
for gltf_mesh in gltf.meshes() {
let mut primitives = vec![];
for primitive in gltf_mesh.primitives() {
Expand All @@ -226,6 +237,18 @@ async fn load_gltf<'a, 'b>(

// Read vertex attributes
for (semantic, accessor) in primitive.attributes() {
if [Semantic::Joints(0), Semantic::Weights(0)].contains(&semantic) {
if !meshes_on_skinned_nodes.contains(&gltf_mesh.index()) {
warn!(
"Ignoring attribute {:?} for skinned mesh {:?} used on non skinned nodes (NODE_SKINNED_MESH_WITHOUT_SKIN)",
semantic,
primitive_label
);
continue;
} else if meshes_on_non_skinned_nodes.contains(&gltf_mesh.index()) {
error!("Skinned mesh {:?} used on both skinned and non skin nodes, this is likely to cause an error (NODE_SKINNED_MESH_WITHOUT_SKIN)", primitive_label);
}
}
match convert_attribute(
semantic,
accessor,
Expand Down