bevy/crates/bevy_render/src/mesh
Joona Aalto c1a4b82762
Revert default mesh materials (#15930)
# Objective

Closes #15799.

Many rendering people and maintainers are in favor of reverting default
mesh materials added in #15524, especially as the migration to required
component is already large and heavily breaking.

## Solution

Revert default mesh materials, and adjust docs accordingly.

- Remove `extract_default_materials`
- Remove `clear_material_instances`, and move the logic back into
`extract_mesh_materials`
- Remove `HasMaterial2d` and `HasMaterial3d`
- Change default material handles back to pink instead of white
- 2D uses `Color::srgb(1.0, 0.0, 1.0)`, while 3D uses `Color::srgb(1.0,
0.0, 0.5)`. Not sure if this is intended.

There is now no indication at all about missing materials for `Mesh2d`
and `Mesh3d`. Having a mesh without a material renders nothing.

## Testing

I ran `2d_shapes`, `mesh2d_manual`, and `3d_shapes`, with and without
mesh material components.
2024-10-15 19:47:40 +00:00
..
allocator.rs Zero Copy Mesh (#15569) 2024-10-04 21:24:44 +00:00
components.rs Revert default mesh materials (#15930) 2024-10-15 19:47:40 +00:00
mod.rs Split out bevy_mesh from bevy_render (#15666) 2024-10-06 14:18:11 +00:00