Package org.lwjgl.vulkan

Class EXTDepthClipControl

java.lang.Object

org.lwjgl.vulkan.EXTDepthClipControl

public final class EXTDepthClipControl
extends java.lang.Object

This extension allows the application to use the OpenGL depth range in NDC, i.e. with depth in range [-1, 1], as opposed to Vulkan’s default of [0, 1]. The purpose of this extension is to allow efficient layering of OpenGL over Vulkan, by avoiding emulation in the pre-rasterization shader stages. This emulation, which effectively duplicates gl_Position but with a different depth value, costs ALU and consumes shader output components that the implementation may not have to spare to meet OpenGL minimum requirements.

VK_EXT_depth_clip_control

Name String

VK_EXT_depth_clip_control

Extension Type

Device extension

Registered Extension Number

356

Revision

1

Extension and Version Dependencies

• Requires Vulkan 1.0
• Requires VK_KHR_get_physical_device_properties2

Special Use

• OpenGL / ES support

Contact

• Shahbaz Youssefi syoussefi

Other Extension Metadata

Last Modified Date

2021-11-09

Contributors

• Spencer Fricke, Samsung Electronics
• Shahbaz Youssefi, Google
• Ralph Potter, Samsung Electronics

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	VK_EXT_DEPTH_CLIP_CONTROL_EXTENSION_NAME	The extension name.
static int	VK_EXT_DEPTH_CLIP_CONTROL_SPEC_VERSION	The extension specification version.
static int	VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DEPTH_CLIP_CONTROL_FEATURES_EXT VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_DEPTH_CLIP_CONTROL_CREATE_INFO_EXT	Extends VkStructureType.

Method Summary

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VK_EXT_DEPTH_CLIP_CONTROL_SPEC_VERSION

The extension specification version.

VK_EXT_DEPTH_CLIP_CONTROL_EXTENSION_NAME

The extension name.

VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DEPTH_CLIP_CONTROL_FEATURES_EXT, VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_DEPTH_CLIP_CONTROL_CREATE_INFO_EXT

Extends VkStructureType.

Enum values:

• STRUCTURE_TYPE_PHYSICAL_DEVICE_DEPTH_CLIP_CONTROL_FEATURES_EXT
• STRUCTURE_TYPE_PIPELINE_VIEWPORT_DEPTH_CLIP_CONTROL_CREATE_INFO_EXT