Safe Haskell | None |
---|---|
Language | Haskell2010 |
Name
VK_EXT_shader_viewport_index_layer - device extension
VK_EXT_shader_viewport_index_layer
- Name String
VK_EXT_shader_viewport_index_layer
- Extension Type
- Device extension
- Registered Extension Number
- 163
- Revision
- 1
- Extension and Version Dependencies
- Requires Vulkan 1.0
- Deprecation state
- Promoted to Vulkan 1.2
- Contact
Other Extension Metadata
- Last Modified Date
- 2017-08-08
- Interactions and External Dependencies
- Promoted to Vulkan 1.2 Core
- This extension requires SPV_EXT_shader_viewport_index_layer
- This extension provides API support for GL_ARB_shader_viewport_layer_array, GL_AMD_vertex_shader_layer, GL_AMD_vertex_shader_viewport_index, and GL_NV_viewport_array2
- This extension requires the
multiViewport
feature. - This extension interacts with the
tessellationShader
feature.
- Contributors
- Piers Daniell, NVIDIA
- Jeff Bolz, NVIDIA
- Jan-Harald Fredriksen, ARM
- Daniel Rakos, AMD
- Slawomir Grajeswki, Intel
Description
This extension adds support for the ShaderViewportIndexLayerEXT
capability from the SPV_EXT_shader_viewport_index_layer
extension in
Vulkan.
This extension allows variables decorated with the Layer
and
ViewportIndex
built-ins to be exported from vertex or tessellation
shaders, using the ShaderViewportIndexLayerEXT
capability.
When using GLSL source-based shading languages, the gl_ViewportIndex
and gl_Layer
built-in variables map to the SPIR-V ViewportIndex
and
Layer
built-in decorations, respectively. Behaviour of these variables
is extended as described in the GL_ARB_shader_viewport_layer_array
(or
the precursor GL_AMD_vertex_shader_layer
,
GL_AMD_vertex_shader_viewport_index
, and GL_NV_viewport_array2
extensions).
Note
The ShaderViewportIndexLayerEXT
capability is equivalent to the
ShaderViewportIndexLayerNV
capability added by
VK_NV_viewport_array2
.
Promotion to Vulkan 1.2
All functionality in this extension is included in core Vulkan 1.2.
The single ShaderViewportIndexLayerEXT
capability from the
SPV_EXT_shader_viewport_index_layer
extension is replaced by the
ShaderViewportIndex
and
ShaderLayer
capabilities from SPIR-V 1.5 which are enabled by the
shaderOutputViewportIndex
and
shaderOutputLayer
features, respectively. Additionally, if Vulkan 1.2 is supported but
this extension is not, these capabilities are optional.
Enabling both features is equivalent to enabling the
VK_EXT_shader_viewport_index_layer
extension.
New Enum Constants
New or Modified Built-In Variables
- (modified) Layer
- (modified) ViewportIndex
New SPIR-V Capabilities
Version History
Revision 1, 2017-08-08 (Daniel Koch)
- Internal drafts
See Also
No cross-references are available
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.
Documentation
pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION :: forall a. Integral a => a Source #
type EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME = "VK_EXT_shader_viewport_index_layer" Source #
pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME :: forall a. (Eq a, IsString a) => a Source #