Package org.lwjgl.vulkan

Class AMDNegativeViewportHeight

java.lang.Object
org.lwjgl.vulkan.AMDNegativeViewportHeight
public final class AMDNegativeViewportHeight extends Object
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::height field to perform y-inversion of the clip-space to framebuffer-space transform. This allows apps to avoid having to use gl_Position.y = -gl_Position.y in 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.

Name String
VK_AMD_negative_viewport_height
Extension Type
Device extension
Registered Extension Number
36
Revision
1
Deprecation State
Contact
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

  • Field Details

    • VK_AMD_NEGATIVE_VIEWPORT_HEIGHT_SPEC_VERSION

      public static final int VK_AMD_NEGATIVE_VIEWPORT_HEIGHT_SPEC_VERSION
      The extension specification version.
      See Also:

    • VK_AMD_NEGATIVE_VIEWPORT_HEIGHT_EXTENSION_NAME

      public static final String VK_AMD_NEGATIVE_VIEWPORT_HEIGHT_EXTENSION_NAME
      The extension name.
      See Also: