VK_NV_linear_color_attachment

Other Extension Metadata

Last Modified Date

2021-12-02

Interactions and External Dependencies

• This extension requires VK_KHR_format_feature_flags2

Contributors

• Pat Brown, NVIDIA
• Piers Daniell, NVIDIA
• Sourav Parmar, NVIDIA

Description

This extension expands support for using VK_IMAGE_TILING_LINEAR images as color attachments when all the color attachments in the render pass instance have VK_IMAGE_TILING_LINEAR tiling. This extension adds a new flag bit VK_FORMAT_FEATURE_2_LINEAR_COLOR_ATTACHMENT_BIT_NV that extends the existing VkFormatFeatureFlagBits2KHR bits. This flag can be set for renderable color formats in the VkFormatProperties3KHR::linearTilingFeatures format properties structure member. Formats with the VK_FORMAT_FEATURE_2_LINEAR_COLOR_ATTACHMENT_BIT_NV flag may be used as color attachments as long as all the color attachments in the render pass instance have VK_IMAGE_TILING_LINEAR tiling, and the formats their images views are created with have VkFormatProperties3KHR::linearTilingFeatures which include VK_FORMAT_FEATURE_2_LINEAR_COLOR_ATTACHMENT_BIT_NV. This extension supports both dynamic rendering and traditional render passes.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceLinearColorAttachmentFeaturesNV

New Enum Constants

• VK_NV_LINEAR_COLOR_ATTACHMENT_EXTENSION_NAME
• VK_NV_LINEAR_COLOR_ATTACHMENT_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LINEAR_COLOR_ATTACHMENT_FEATURES_NV

If VK_KHR_format_feature_flags2 or Vulkan Version 1.3 is supported:

• Extending VkFormatFeatureFlagBits2:
  • VK_FORMAT_FEATURE_2_LINEAR_COLOR_ATTACHMENT_BIT_NV

Version History

• Revision 1, 2021-11-29 (sourav parmar)
  • Initial draft