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Mesh vertex attributes for skinning and animation (#1831)

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Required by #1429,

- Adds the `Ushort4` vertex attribute for joint indices
- `Mesh::ATTRIBUTE_JOINT_WEIGHT` and `Mesh::ATTRIBUTE_JOINT_INDEX` to import vertex attributes related to skinning from GLTF
- impl `Default` for `Mesh` a empty triangle mesh is created (needed by reflect)
- impl `Reflect` for `Mesh` all attributes are ignored (needed by the animation system)
This commit is contained in:
Felipe Jorge 2021-05-06 03:31:20 +00:00
parent cf8ef7660c
commit 41d9122740
1 changed files with 5 additions and 0 deletions
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5
crates/bevy_render/src/mesh/mesh.rs
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@ -262,6 +262,11 @@ impl Mesh {
/// Texture coordinates for the vertex. Use in conjunction with [`Mesh::set_attribute`]
pub const ATTRIBUTE_UV_0: &'static str = "Vertex_Uv";
/// Per vertex joint transform matrix weight. Use in conjunction with [`Mesh::set_attribute`]
pub const ATTRIBUTE_JOINT_WEIGHT: &'static str = "Vertex_JointWeight";
/// Per vertex joint transform matrix index. Use in conjunction with [`Mesh::set_attribute`]
pub const ATTRIBUTE_JOINT_INDEX: &'static str = "Vertex_JointIndex";
/// Construct a new mesh. You need to provide a PrimitiveTopology so that the
/// renderer knows how to treat the vertex data. Most of the time this will be
/// `PrimitiveTopology::TriangleList`.