Render passes, and specifically subpass dependencies, enable much of the same functionality as the framebuffer fetch and pixel local storage extensions did for OpenGL ES. But certain techniques such as programmable blending are awkward or impractical to implement with these alone, in part because a self-dependency is required every time a fragment will read a value at a given sample coordinate.

This extension extends the mechanism of input attachments to allow access to framebuffer attachments when used as both input and color, or depth/stencil, attachments from one fragment to the next, in rasterization order, without explicit synchronization.

Examples

None.

VK_ARM_rasterization_order_attachment_access

Name String

VK_ARM_rasterization_order_attachment_access

Extension Type

Device extension

Registered Extension Number

343

Revision

1

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

Deprecation state

• Promoted to VK_EXT_rasterization_order_attachment_access extension

Contact

• Jan-Harald Fredriksen janharaldfredriksen-arm

Other Extension Metadata

Last Modified Date

2021-11-12

IP Status

No known IP claims.

Contributors

• Tobias Hector, AMD
• Jan-Harald Fredriksen, Arm