HLSL Attributes Reference (Xbox 360)

This section contains reference information about high-level shader language (HLSL) attributes. The following HLSL attributes are implemented.

Attribute	Description
branch	Performs branching.
call	Prevents inlining of a function.
flatten	Performs branching.
ifAll	Executes the conditional part of an if statement when the condition is true for all threads on which the current shader is running.
ifAny	Executes the conditional part of an if statement when the condition is true for any thread on which the current shader is running.
isolate	Optimizes the specified HLSL code independently of the surrounding code.
loop	Gives preference to flow control constructs.
maxexports	Specifies the maximum number of export instructions that will execute along any path from the entry point to an exit.
maxInstructionCount	Sets the maximum number of instructions available to a shader.
maxtempreg	Restricts temporary register usage to the number of registers specified. Generates a compiler error if unsuccessful.
noExpressionOptimizations	Avoids optimization of expressions.
predicate	Performs branching by using predication.
predicateBlock	Performs branching by using predicated exec blocks.
reduceTempRegUsage	Restricts temporary register usage to the number of registers specified. Generates a compiler warning if unsuccessful.
removeUnusedInputs	Removes unused interpolator inputs from pixel shaders.
sampreg	Sets the ranges of pixel and vertex sampler registers used by the compiler.
unroll	Avoids flow control constructs.
unused	Suppresses warnings about unused shader parameters.

See Also