Tint changes during Origin Trial
Changes for M105
New features
- Module-scope
var<private>
can now infer the storage type, like function-scope var
. tint:1584 - The
acosh
, asinh
, and atanh
builtin functions are now supported tint:1465
Breaking changes
- The
smoothStep()
builtin has been removed (use smoothstep
instead). tint:1483 - Module-scope
let
has been replaced with module-scope const
. tint:1580- Note: Module-scope
const
does not support structure types. Use var<private>
if you need a module-scope structure type.
- Struct members can no longer be separated with semicolons (use commas instead). tint:1475
- Single scalar matrix constructors have been removed. These were never part of the WGSL spec. tint:1597
Deprecated Features
- The
@stage
attribute has been deprecated. The short forms should be used instead (@vertex
, @fragment
, or @compute
). tint:1503
Changes for M104
New features
- Tint now supports abstract-numerics, removing the need to always suffix unsigned integers with
u
tint:1504 - Parsing of
@compute
, @fragment
and @vertex
added.
Changes for M103
New features
- Produce warnings for when calling barriers, textureSample, and derivative builtins in non-uniform control flow tint:880
- Matrix identity constructors and constructors for a single scalar value are now supported tint:1545
Breaking changes
- Builtin
atomicCompareExchangeWeak
returns a struct instead of a vec2. tint:1185
Changes for M102
New Features
- Parentheses are no longer required around expressions for if and switch statements tint:1424
- Compound assignment statements are now supported. tint:1325
- Postfix increment and decrement statements are now supported. tint:1488
- The colon in case statements is now optional. tint:1485
Breaking changes
- Struct members are now separated by commas. tint:1475
- The
@block
attribute has been removed. tint:1324 - The
@stride
attribute has been removed. tint:1381 - Attributes using
[[attribute]]
syntax are no longer supported. tint:1382 - The
elseif
keyword is no longer supported. tint:1289
Deprecated Features
- The
smoothStep()
builtin has been renamed to smoothstep()
. tint:1483
Changes for M101
New Features
- Tint now supports unicode identifiers. tint:1437
Breaking changes
- The
isNan()
, isInf()
, isFinite()
, and isNormal()
builtins have been removed. tint:1312
Changes for M100
Breaking changes
- The
@interpolate(flat)
attribute must now be specified on integral user-defined IO. tint:1224 - The
ignore()
intrinsic has been removed. Use phoney-assignment instead: ignore(expr);
-> _ = expr;
. break
statements in continuing
blocks are now correctly validated.
New Features
- Module-scope declarations can now be declared in any order. tint:1266
- The
override
keyword and @id()
attribute for pipeline-overridable constants are now supported, replacing the @override
attribute. tint:1403
Changes for M99
Breaking changes
Obviously infinite loops (no condition, no break) are now a validation error.
Deprecated Features
The following features have been deprecated and will be removed in M102:
- The
[[block]]
attribute has been deprecated. tint:1324 - Attributes now use the
@decoration
syntax instead of the [[decoration]]
syntax. tint:1382 elseif
has been replaced with else if
. tint:1289- The
[[stride]]
attribute has been deprecated. tint:1381
New Features
- Vector and matrix element type can now be inferred from constructor argument types. tint:1334
- Added builtins
degrees()
and radians()
for converting between degrees and radians. tint:1329 let
arrays and matrices can now be dynamically indexed. tint:1352- Storage and Uniform buffer types no longer have to be structures. tint:1372
- A struct declaration does not have to be followed by a semicolon. tint:1380
Fixes
- Fixed an issue where for-loops that contain array or structure constructors in the loop initializer statements, condition expressions or continuing statements could fail to compile. tint:1364
Changes for M98
Breaking Changes
- Taking the address of a vector component is no longer allowed.
- Module-scope declarations can no longer alias a builtin name. tint:1318
- It is now an error to call a function either directly or transitively, from a loop continuing block, that uses
discard
. tint:1302
Deprecated Features
- The
isNan()
, isInf()
, isFinite()
and isNormal()
builtins has been deprecated and will be removed in M101. tint:1312
New Features
- New texture gather builtins:
textureGather()
and textureGatherCompare()
. tint:1330 - Shadowing is now fully supported. tint:819
- The
dot()
builtin now supports integer vector types. - Identifiers can now start with a single leading underscore. tint:1292
- Control flow analysis has been improved, and functions no longer need to
return
if the statement is unreachable. tint:1302 - Unreachable statements now produce a warning instead of an error, to allow WGSL code to be updated to the new analysis behavior. These warnings may become errors in the future gpuweb#2378
Fixes
- Fixed an issue where using a module-scoped
let
in a workgroup_size
may result in a compilation error. tint:1320
Changes for M97
Breaking Changes
- Deprecated
modf()
and frexp()
builtin overloads that take a pointer second parameter have been removed. - Deprecated texture builtin functions that accepted a
read
access controlled storage texture have been removed. - Storage textures must now only use the
write
access control.
Deprecated Features
- The
ignore()
builtin has been replaced with phony-assignment. gpuweb#2127
New Features
any()
and all()
now support a bool
parameter. These simply return the passed argument. tint:1253- Call statements may now include functions that return a value (
ignore()
is no longer needed). - 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. - Matrix construction from scalar element values is now supported.
Fixes
- Swizzling of
vec3
types in storage
and uniform
buffers has been fixed for Metal 1.x. tint:1249 - Calling a function that returns an unused value no longer produces an FXC compilation error. tint:1259
abs()
fixed for unsigned integers on SPIR-V backend
Changes for M95
New Features
- The size of an array can now be defined using a non-overridable module-scope constant
- The
num_workgroups
builtin is now supported.
Fixes
- Hex floats: now correctly errors when the magnitude is non-zero, and the exponent would cause overflow. tint:1150, tint:1166
- Identifiers beginning with an underscore are now correctly rejected. tint:1179