1// Copyright 2016-2024 The Khronos Group Inc. 2// 3// SPDX-License-Identifier: CC-BY-4.0 4 5include::{generated}/meta/{refprefix}VK_KHR_draw_indirect_count.adoc[] 6 7=== Other Extension Metadata 8 9*Last Modified Date*:: 10 2017-08-25 11*IP Status*:: 12 No known IP claims. 13*Contributors*:: 14 - Matthaeus G. Chajdas, AMD 15 - Derrick Owens, AMD 16 - Graham Sellers, AMD 17 - Daniel Rakos, AMD 18 - Dominik Witczak, AMD 19 - Piers Daniell, NVIDIA 20 21=== Description 22 23This extension is based on the `apiext:VK_AMD_draw_indirect_count` 24extension. 25This extension allows an application to source the number of draws for 26indirect drawing calls from a buffer. 27 28Applications might want to do culling on the GPU via a compute shader prior 29to drawing. 30This enables the application to generate an arbitrary number of drawing 31commands and execute them without host intervention. 32 33=== Promotion to Vulkan 1.2 34 35All functionality in this extension is included in core Vulkan 1.2, with the 36KHR suffix omitted. 37However, if Vulkan 1.2 is supported and this extension is not, the entry 38points flink:vkCmdDrawIndirectCount and flink:vkCmdDrawIndexedIndirectCount 39are optional. 40The original type, enum and command names are still available as aliases of 41the core functionality. 42 43include::{generated}/interfaces/VK_KHR_draw_indirect_count.adoc[] 44 45=== Version History 46 47 * Revision 1, 2017-08-25 (Piers Daniell) 48 ** Initial draft based on VK_AMD_draw_indirect_count 49