C Specification

The possible values returned by the implementation when the vertex shader reads an unbound vertex attribute are:

// Provided by VK_KHR_maintenance9
typedef enum VkDefaultVertexAttributeValueKHR {
    VK_DEFAULT_VERTEX_ATTRIBUTE_VALUE_ZERO_ZERO_ZERO_ZERO_KHR = 0,
    VK_DEFAULT_VERTEX_ATTRIBUTE_VALUE_ZERO_ZERO_ZERO_ONE_KHR = 1,
} VkDefaultVertexAttributeValueKHR;

Description

  • VK_DEFAULT_VERTEX_ATTRIBUTE_VALUE_ZERO_ZERO_ZERO_ZERO_KHR - the value read for an unbound vertex attribute is (0,0,0,0).

  • VK_DEFAULT_VERTEX_ATTRIBUTE_VALUE_ZERO_ZERO_ZERO_ONE_KHR - the value read for an unbound vertex attribute is (0,0,0,1).

See Also

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0