Deprecation State
- 
Obsoleted by VK_KHR_maintenance1 extension - 
Which in turn was promoted to Vulkan 1.1 
 
- 
Contact
- 
Matthaeus G. Chajdas [GitHub]anteru 
Other Extension Metadata
- Last Modified Date
- 
2016-09-02 
- IP Status
- 
No known IP claims. 
- Contributors
- 
- 
Matthaeus G. Chajdas, AMD 
- 
Graham Sellers, AMD 
- 
Baldur Karlsson 
 
- 
Description
This extension allows an application to specify a negative viewport height. The result is that the viewport transformation will flip along the y-axis.
- 
Allow negative height to be specified in the VkViewport:: heightfield to perform y-inversion of the clip-space to framebuffer-space transform. This allows apps to avoid having to usegl_Position.y = -gl_Position.yin shaders also targeting other APIs.
Obsoletion by VK_KHR_maintenance1 and Vulkan 1.1
Functionality in this extension is included in the
VK_KHR_maintenance1 extension and subsequently Vulkan 1.1.
Due to some slight behavioral differences, this extension must not be
enabled alongside VK_KHR_maintenance1, or in an instance created with
version 1.1 or later requested in VkApplicationInfo::apiVersion.
New Enum Constants
- 
VK_AMD_NEGATIVE_VIEWPORT_HEIGHT_EXTENSION_NAME
- 
VK_AMD_NEGATIVE_VIEWPORT_HEIGHT_SPEC_VERSION
Document Notes
For more information, see the Vulkan Specification
This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.