This extension adds stricter requirements for how out of bounds reads and writes are handled. Most accesses must be tightly bounds-checked, out of bounds writes must be discarded, out of bound reads must return zero. Rather than allowing multiple possible (0,0,0,x) vectors, the out of bounds values are treated as zero, and then missing components are inserted based on the format as described in Conversion to RGBA and vertex input attribute extraction.

These additional requirements may be expensive on some implementations, and should only be enabled when truly necessary.

This extension also adds support for “null descriptors”, where NULL_HANDLE can be used instead of a valid handle. Accesses to null descriptors have well-defined behavior, and do not rely on robustness.

Examples

None.

VK_EXT_robustness2

Name String

VK_EXT_robustness2

Extension Type

Device extension

Registered Extension Number

287

Revision

1

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2 or Version 1.1

Contact

• Liam Middlebrook liam-middlebrook

Other Extension Metadata

Last Modified Date

2020-01-29

IP Status

No known IP claims.

Contributors

• Liam Middlebrook, NVIDIA
• Jeff Bolz, NVIDIA