49 lines
2.0 KiB
Markdown
49 lines
2.0 KiB
Markdown
# Tint changes during Origin Trial
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## Changes for M98
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### Breaking Changes
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* Taking the address of a vector component is no longer allowed.
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### New Features
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* The `dot()` builtin now supports integer vector types.
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## Changes for M97
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### Breaking Changes
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* Deprecated `modf()` and `frexp()` builtin overloads that take a pointer second parameter have been removed.
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* Deprecated texture builtin functions that accepted a `read` access controlled storage texture have been removed.
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* Storage textures must now only use the `write` access control.
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### Deprecated Features
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* The `ignore()` builtin has been replaced with phony-assignment. [gpuweb#2127](https://github.com/gpuweb/gpuweb/pull/2127)
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### New Features
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* `any()` and `all()` now support a `bool` parameter. These simply return the passed argument. [tint:1253](https://crbug.com/tint/1253)
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* Call statements may now include functions that return a value (`ignore()` is no longer needed).
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* The `interpolate(flat)` attribute can now be specified on integral user-defined IO. It will eventually become an error to define integral user-defined IO without this attribute.
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* Matrix construction from scalar element values is now supported.
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### Fixes
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* Swizzling of `vec3` types in `storage` and `uniform` buffers has been fixed for Metal 1.x. [tint:1249](https://crbug.com/tint/1249)
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* Calling a function that returns an unused value no longer produces an FXC compilation error. [tint:1259](https://crbug.com/tint/1259)
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## Changes for M95
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### New Features
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* The size of an array can now be defined using a non-overridable module-scope constant
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* The `num_workgroups` builtin is now supported.
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### Fixes
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* Hex floats: now correctly errors when the magnitude is non-zero, and the exponent would cause overflow. [tint:1150](https://crbug.com/tint/1150), [tint:1166](https://crbug.com/tint/1166)
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* Identifiers beginning with an underscore are now correctly rejected. [tint:1179](https://crbug.com/tint/1179)
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* `abs()` fixed for unsigned integers on SPIR-V backend [tint:1179](https://crbug.com/tint/1194)
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