Contact
-
Daniel Koch dgkoch
Other Extension Metadata
- Last Modified Date
-
2017-02-15
- Interactions and External Dependencies
-
-
This extension requires
SPV_NV_viewport_array2
-
This extension provides API support for
GL_NV_viewport_array2
-
This extension requires the
geometryShader
andmultiViewport
features. -
This extension interacts with the
tessellationShader
feature.
-
- Contributors
-
-
Piers Daniell, NVIDIA
-
Jeff Bolz, NVIDIA
-
Description
This extension adds support for the following SPIR-V extension in Vulkan:
-
SPV_NV_viewport_array2
which allows a single primitive to be broadcast to multiple viewports and/or
multiple layers.
A new shader built-in output ViewportMaskNV
is provided, which allows a
single primitive to be output to multiple viewports simultaneously.
Also, a new SPIR-V decoration is added to control whether the effective
viewport index is added into the variable decorated with the Layer
built-in decoration.
These capabilities allow a single primitive to be output to multiple layers
simultaneously.
This extension allows variables decorated with the Layer
and
ViewportIndex
built-ins to be exported from vertex or tessellation
shaders, using the ShaderViewportIndexLayerNV
capability.
This extension adds a new ViewportMaskNV
built-in decoration that is
available for output variables in vertex, tessellation evaluation, and
geometry shaders, and a new ViewportRelativeNV
decoration that can be
added on variables decorated with Layer
when using the
ShaderViewportMaskNV
capability.
When using GLSL source-based shading languages, the gl_ViewportMask
[]
built-in output variable and viewport_relative
layout qualifier from
GL_NV_viewport_array2
map to the ViewportMaskNV
and
ViewportRelativeNV
decorations, respectively.
Behaviour is described in the GL_NV_viewport_array2
extension
specification.
Note
The |
New Enum Constants
-
VK_NV_VIEWPORT_ARRAY2_EXTENSION_NAME
-
VK_NV_VIEWPORT_ARRAY2_SPEC_VERSION
-
VK_NV_VIEWPORT_ARRAY_2_EXTENSION_NAME
-
VK_NV_VIEWPORT_ARRAY_2_SPEC_VERSION
New or Modified Built-In Variables
-
(modified)
Layer
-
(modified)
ViewportIndex
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.