This extension allows instance-rate vertex attributes to be repeated for certain number of instances instead of advancing for every instance when instanced rendering is enabled.

Examples

To create a vertex binding such that the first binding uses instanced rendering and the same attribute is used for every 4 draw instances, an application could use the following set of structures:

    const VkVertexInputBindingDivisorDescriptionEXT divisorDesc =
    {
        .binding = 0,
        .divisor = 4
    };

    const VkPipelineVertexInputDivisorStateCreateInfoEXT divisorInfo =
    {
        .sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_DIVISOR_STATE_CREATE_INFO_EXT,
        .pNext = NULL,
        .vertexBindingDivisorCount = 1,
        .pVertexBindingDivisors = &divisorDesc
    }

    const VkVertexInputBindingDescription binding =
    {
        .binding = 0,
        .stride = sizeof(Vertex),
        .inputRate = VK_VERTEX_INPUT_RATE_INSTANCE
    };

    const VkPipelineVertexInputStateCreateInfo viInfo =
    {
        .sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_CREATE_INFO,
        .pNext = &divisorInfo,
        ...
    };
    //...

VK_EXT_vertex_attribute_divisor

Name String

VK_EXT_vertex_attribute_divisor

Extension Type

Device extension

Registered Extension Number

191

Revision

3

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2 or Version 1.1

Contact

• Vikram Kushwaha vkushwaha

Other Extension Metadata

Last Modified Date

2018-08-03

IP Status

No known IP claims.

Contributors

• Vikram Kushwaha, NVIDIA
• Faith Ekstrand, Intel