bevy/crates/bevy_pbr/src/render/mesh.wgsl
Elabajaba 35ac1b152e
Update to wgpu 0.19 and raw-window-handle 0.6 (#11280)
# Objective

Keep core dependencies up to date.

## Solution

Update the dependencies.

wgpu 0.19 only supports raw-window-handle (rwh) 0.6, so bumping that was
included in this.

The rwh 0.6 version bump is just the simplest way of doing it. There
might be a way we can take advantage of wgpu's new safe surface creation
api, but I'm not familiar enough with bevy's window management to
untangle it and my attempt ended up being a mess of lifetimes and rustc
complaining about missing trait impls (that were implemented). Thanks to
@MiniaczQ for the (much simpler) rwh 0.6 version bump code.

Unblocks https://github.com/bevyengine/bevy/pull/9172 and
https://github.com/bevyengine/bevy/pull/10812

~~This might be blocked on cpal and oboe updating their ndk versions to
0.8, as they both currently target ndk 0.7 which uses rwh 0.5.2~~ Tested
on android, and everything seems to work correctly (audio properly stops
when minimized, and plays when re-focusing the app).

---

## Changelog

- `wgpu` has been updated to 0.19! The long awaited arcanization has
been merged (for more info, see
https://gfx-rs.github.io/2023/11/24/arcanization.html), and Vulkan
should now be working again on Intel GPUs.
- Targeting WebGPU now requires that you add the new `webgpu` feature
(setting the `RUSTFLAGS` environment variable to
`--cfg=web_sys_unstable_apis` is still required). This feature currently
overrides the `webgl2` feature if you have both enabled (the `webgl2`
feature is enabled by default), so it is not recommended to add it as a
default feature to libraries without putting it behind a flag that
allows library users to opt out of it! In the future we plan on
supporting wasm binaries that can target both webgl2 and webgpu now that
wgpu added support for doing so (see
https://github.com/bevyengine/bevy/issues/11505).
- `raw-window-handle` has been updated to version 0.6.

## Migration Guide

- `bevy_render::instance_index::get_instance_index()` has been removed
as the webgl2 workaround is no longer required as it was fixed upstream
in wgpu. The `BASE_INSTANCE_WORKAROUND` shaderdef has also been removed.
- WebGPU now requires the new `webgpu` feature to be enabled. The
`webgpu` feature currently overrides the `webgl2` feature so you no
longer need to disable all default features and re-add them all when
targeting `webgpu`, but binaries built with both the `webgpu` and
`webgl2` features will only target the webgpu backend, and will only
work on browsers that support WebGPU.
- Places where you conditionally compiled things for webgl2 need to be
updated because of this change, eg:
- `#[cfg(any(not(feature = "webgl"), not(target_arch = "wasm32")))]`
becomes `#[cfg(any(not(feature = "webgl") ,not(target_arch = "wasm32"),
feature = "webgpu"))]`
- `#[cfg(all(feature = "webgl", target_arch = "wasm32"))]` becomes
`#[cfg(all(feature = "webgl", target_arch = "wasm32", not(feature =
"webgpu")))]`
- `if cfg!(all(feature = "webgl", target_arch = "wasm32"))` becomes `if
cfg!(all(feature = "webgl", target_arch = "wasm32", not(feature =
"webgpu")))`
- `create_texture_with_data` now also takes a `TextureDataOrder`. You
can probably just set this to `TextureDataOrder::default()`
- `TextureFormat`'s `block_size` has been renamed to `block_copy_size`
- See the `wgpu` changelog for anything I might've missed:
https://github.com/gfx-rs/wgpu/blob/trunk/CHANGELOG.md

---------

Co-authored-by: François <mockersf@gmail.com>
2024-01-26 18:14:21 +00:00

106 lines
3 KiB
WebGPU Shading Language

#import bevy_pbr::{
mesh_functions,
skinning,
morph::morph,
forward_io::{Vertex, VertexOutput},
view_transformations::position_world_to_clip,
}
#ifdef MORPH_TARGETS
fn morph_vertex(vertex_in: Vertex) -> Vertex {
var vertex = vertex_in;
let weight_count = bevy_pbr::morph::layer_count();
for (var i: u32 = 0u; i < weight_count; i ++) {
let weight = bevy_pbr::morph::weight_at(i);
if weight == 0.0 {
continue;
}
vertex.position += weight * morph(vertex.index, bevy_pbr::morph::position_offset, i);
#ifdef VERTEX_NORMALS
vertex.normal += weight * morph(vertex.index, bevy_pbr::morph::normal_offset, i);
#endif
#ifdef VERTEX_TANGENTS
vertex.tangent += vec4(weight * morph(vertex.index, bevy_pbr::morph::tangent_offset, i), 0.0);
#endif
}
return vertex;
}
#endif
@vertex
fn vertex(vertex_no_morph: Vertex) -> VertexOutput {
var out: VertexOutput;
#ifdef MORPH_TARGETS
var vertex = morph_vertex(vertex_no_morph);
#else
var vertex = vertex_no_morph;
#endif
#ifdef SKINNED
var model = skinning::skin_model(vertex.joint_indices, vertex.joint_weights);
#else
// Use vertex_no_morph.instance_index instead of vertex.instance_index to work around a wgpu dx12 bug.
// See https://github.com/gfx-rs/naga/issues/2416 .
var model = mesh_functions::get_model_matrix(vertex_no_morph.instance_index);
#endif
#ifdef VERTEX_NORMALS
#ifdef SKINNED
out.world_normal = skinning::skin_normals(model, vertex.normal);
#else
out.world_normal = mesh_functions::mesh_normal_local_to_world(
vertex.normal,
// Use vertex_no_morph.instance_index instead of vertex.instance_index to work around a wgpu dx12 bug.
// See https://github.com/gfx-rs/naga/issues/2416
vertex_no_morph.instance_index
);
#endif
#endif
#ifdef VERTEX_POSITIONS
out.world_position = mesh_functions::mesh_position_local_to_world(model, vec4<f32>(vertex.position, 1.0));
out.position = position_world_to_clip(out.world_position.xyz);
#endif
#ifdef VERTEX_UVS
out.uv = vertex.uv;
#endif
#ifdef VERTEX_UVS_B
out.uv_b = vertex.uv_b;
#endif
#ifdef VERTEX_TANGENTS
out.world_tangent = mesh_functions::mesh_tangent_local_to_world(
model,
vertex.tangent,
// Use vertex_no_morph.instance_index instead of vertex.instance_index to work around a wgpu dx12 bug.
// See https://github.com/gfx-rs/naga/issues/2416
vertex_no_morph.instance_index
);
#endif
#ifdef VERTEX_COLORS
out.color = vertex.color;
#endif
#ifdef VERTEX_OUTPUT_INSTANCE_INDEX
// Use vertex_no_morph.instance_index instead of vertex.instance_index to work around a wgpu dx12 bug.
// See https://github.com/gfx-rs/naga/issues/2416
out.instance_index = vertex_no_morph.instance_index;
#endif
return out;
}
@fragment
fn fragment(
mesh: VertexOutput,
) -> @location(0) vec4<f32> {
#ifdef VERTEX_COLORS
return mesh.color;
#else
return vec4<f32>(1.0, 0.0, 1.0, 1.0);
#endif
}