SPIR-V Built-In
FragSizeEXT
Size of the screen-space area covered by the fragment
FragSizeEXT
Decorating a variable with the FragSizeEXT built-in decoration will
make that variable contain the dimensions in pixels of the
area that the fragment covers for that
invocation.
If fragment density map is not enabled, FragSizeEXT will be filled with
a value of (1,1).
Valid Usage
VUID-FragSizeEXT-FragSizeEXT-04220
The FragSizeEXT decoration must be used only within the
Fragment Execution Model
VUID-FragSizeEXT-FragSizeEXT-04221
The variable decorated with FragSizeEXT must be declared using the
Input Storage Class
VUID-FragSizeEXT-FragSizeEXT-04222
The variable decorated with FragSizeEXT must be declared as a
two-component vector of 32-bit integer values