Update wgpu requirement from 0.15 to 0.20

[dependabot[bot]]

Updates the requirements on wgpu to permit the latest version.

Release notes

Sourced from wgpu's releases.

v0.20.0

Major Changes

Pipeline overridable constants

Wgpu supports now pipeline-overridable constants

This allows you to define constants in wgsl like this:

override some_factor: f32 = 42.1337; // Specifies a default of 42.1337 if it's not set.

And then set them at runtime like so on your pipeline consuming this shader:

// ...
fragment: Some(wgpu::FragmentState {
    compilation_options: wgpu::PipelineCompilationOptions {
        constants: &[("some_factor".to_owned(), 0.1234)].into(), // Sets `some_factor` to 0.1234.
        ..Default::default()
    },
    // ...
}),
// ...

By @​teoxoy & @​jimblandy in #5500

Changed feature requirements for timestamps

Due to a specification change write_timestamp is no longer supported on WebGPU. wgpu::CommandEncoder::write_timestamp requires now the new wgpu::Features::TIMESTAMP_QUERY_INSIDE_ENCODERS feature which is available on all native backends but not on WebGPU.

By @​wumpf in #5188

Wgsl const evaluation for many more built-ins

Many numeric built-ins have had a constant evaluation implementation added for them, which allows them to be used in a const context:

abs, acos, acosh, asin, asinh, atan, atanh, cos, cosh, round, saturate, sin, sinh, sqrt, step, tan, tanh, ceil, countLeadingZeros, countOneBits, countTrailingZeros, degrees, exp, exp2, floor, fract, fma, inverseSqrt, log, log2, max, min, radians, reverseBits, sign, trunc

By @​ErichDonGubler in #4879, #5098

New native-only wgsl features

Subgroup operations

The following subgroup operations are available in wgsl now:

subgroupBallot, subgroupAll, subgroupAny, subgroupAdd, subgroupMul, subgroupMin, subgroupMax, subgroupAnd, subgroupOr, subgroupXor, subgroupExclusiveAdd, subgroupExclusiveMul, subgroupInclusiveAdd, subgroupInclusiveMul, subgroupBroadcastFirst, subgroupBroadcast, subgroupShuffle, subgroupShuffleDown, subgroupShuffleUp, subgroupShuffleXor

... (truncated)

Changelog

Sourced from wgpu's changelog.

v0.20.0 (2024-04-28)

Major Changes

Pipeline overridable constants

Wgpu supports now pipeline-overridable constants

This allows you to define constants in wgsl like this:

override some_factor: f32 = 42.1337; // Specifies a default of 42.1337 if it's not set.

And then set them at runtime like so on your pipeline consuming this shader:

// ...
fragment: Some(wgpu::FragmentState {
    compilation_options: wgpu::PipelineCompilationOptions {
        constants: &[("some_factor".to_owned(), 0.1234)].into(), // Sets `some_factor` to 0.1234.
        ..Default::default()
    },
    // ...
}),
// ...

By @​teoxoy & @​jimblandy in #5500

Changed feature requirements for timestamps

Due to a specification change write_timestamp is no longer supported on WebGPU. wgpu::CommandEncoder::write_timestamp requires now the new wgpu::Features::TIMESTAMP_QUERY_INSIDE_ENCODERS feature which is available on all native backends but not on WebGPU.

By @​wumpf in #5188

Wgsl const evaluation for many more built-ins

Many numeric built-ins have had a constant evaluation implementation added for them, which allows them to be used in a const context:

abs, acos, acosh, asin, asinh, atan, atanh, cos, cosh, round, saturate, sin, sinh, sqrt, step, tan, tanh, ceil, countLeadingZeros, countOneBits, countTrailingZeros, degrees, exp, exp2, floor, fract, fma, inverseSqrt, log, log2, max, min, radians, reverseBits, sign, trunc

By @​ErichDonGubler in #4879, #5098

New native-only wgsl features

Subgroup operations

The following subgroup operations are available in wgsl now:

subgroupBallot, subgroupAll, subgroupAny, subgroupAdd, subgroupMul, subgroupMin, subgroupMax, subgroupAnd, subgroupOr, subgroupXor, subgroupExclusiveAdd, subgroupExclusiveMul, subgroupInclusiveAdd, subgroupInclusiveMul, subgroupBroadcastFirst, subgroupBroadcast, subgroupShuffle, subgroupShuffleDown, subgroupShuffleUp, subgroupShuffleXor

... (truncated)

Commits

• 4521502 Release v0.20.0 (#5619)
• 05cfdec build(deps): bump the patch-updates group with 5 updates (#5605)
• e8e33ed refactor(naga): remove extraneous leading path qualifiers (#5612)
• 1ea9639 [hal] Document Api::Fence, its users, and its Vulkan impl. (#5618)
• 4af2e7b [hal] Document Queue::submit ordering guarantees a bit.
• a2cd2b9 [hal] Fix cargo doc --document-private-items. Check in CI. (#5617)
• 9eb1b71 Add some more changelog entries (#5611)
• 739905e Extract a naga pub create_validator function for use in Bevy (#5606)
• d4f3063 [core] Fix caller location tracking in lock::ranked.
• 55c9d69 [naga] fix the way we adjust constant initializers when processing overrides
• Additional commits viewable in compare view

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