Vulkan-Docs/doc/specs/vulkan/appendices/VK_AMD_mixed_attachment_samples.txt

[[VK_AMD_mixed_attachment_samples]]
== VK_AMD_mixed_attachment_samples

*Name String*::
    +VK_AMD_mixed_attachment_samples+
*Extension Type*::
    Device extension
*Registered Extension Number*::
    137
*Status*::
    Complete
*Last Modified Date*::
    2017-07-24
*Revision*::
    1
*Dependencies*::
  - This extension is written against version 1.0 of the Vulkan API.
*Contributors*::
  - Mais Alnasser, AMD
  - Matthaeus G.
    Chajdas, AMD
  - Maciej Jesionowski, AMD
  - Daniel Rakos, AMD
*Contacts*::
  - Matthaeus G.
    Chajdas (matthaeus.chajdas@amd.com)
*Overview*::

This extension enables applications to use multisampled rendering with a
depth/stencil sample count that is larger than the color sample count.
Having a depth/stencil sample count larger than the color sample count
allows maintaining geometry and coverage information at a higher sample rate
than color information.
All samples are depth/stencil tested, but only the first color sample count
number of samples get a corresponding color output.

=== New Object Types

None.

=== New Enum Constants

None.

=== New Enums

None.

=== New Structures

None.

=== New Functions

None.

=== Issues

None.

=== Version History

 * Revision 1, 2017-07-24 (Daniel Rakos)
   - Internal revisions
Change log for August 1, 2017 Vulkan 1.0.57 spec update: * Bump API patch number and header version number to 57 for this update. Github Issues: * Fix error in description of ename:VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK block size (public issue 342). * Update documentation of ename:VK_PIPELINE_CREATE_ALLOW_DERIVATIVES_BIT to explicitly mention both graphics and compute pipelines (public issue 525). Internal Issues: * Document that slink:VkPhysicalDeviceLimits::pname:framebufferColorSampleCounts does not cover integer formats (internal issue 550). * Add a note under slink:VkImageViewCreateInfo describing how values meant for one format can be sanitized when used via another format (internal issue 927). * Add valid usage statements to ftext:vkCmd* documenting that image subresources used as attachments must not be accessed as non-attachments in a render pass (internal issue 929). * Remove obsolete 'validextensionstructs' attribute from +vk.xml+, the XML schema, and the schema documentation (internal issue 946). New Extensions: * `VK_AMD_mixed_attachment_samples` * `VK_EXT_post_depth_coverage` * `VK_KHR_relaxed_block_layout` * `VK_NV_depth_range_unrestricted` 2017-07-31 17:22:11 -07:00			`[[VK_AMD_mixed_attachment_samples]]`
			`== VK_AMD_mixed_attachment_samples`

			`Name String::`
			`+VK_AMD_mixed_attachment_samples+`
			`Extension Type::`
			`Device extension`
			`Registered Extension Number::`
			`137`
			`Status::`
			`Complete`
			`Last Modified Date::`
			`2017-07-24`
			`Revision::`
			`1`
			`Dependencies::`
			`- This extension is written against version 1.0 of the Vulkan API.`
			`Contributors::`
			`- Mais Alnasser, AMD`
			`- Matthaeus G.`
			`Chajdas, AMD`
			`- Maciej Jesionowski, AMD`
			`- Daniel Rakos, AMD`
			`Contacts::`
			`- Matthaeus G.`
			`Chajdas (matthaeus.chajdas@amd.com)`
			`Overview::`

			`This extension enables applications to use multisampled rendering with a`
			`depth/stencil sample count that is larger than the color sample count.`
			`Having a depth/stencil sample count larger than the color sample count`
			`allows maintaining geometry and coverage information at a higher sample rate`
			`than color information.`
			`All samples are depth/stencil tested, but only the first color sample count`
			`number of samples get a corresponding color output.`

			`=== New Object Types`

			`None.`

			`=== New Enum Constants`

			`None.`

			`=== New Enums`

			`None.`

			`=== New Structures`

			`None.`

			`=== New Functions`

			`None.`

			`=== Issues`

			`None.`

			`=== Version History`

			`* Revision 1, 2017-07-24 (Daniel Rakos)`
			`- Internal revisions`