Hello,

It would be awesome if the drawIndirectCount functionality will be available in WebGPU.
DrawIndirect functionality is already available, and it's excellent, but DrawIndirectCount allows to render more advanced things.

DrawIndirectCount is available under almost all platforms now: Vulkan, OpenGL, Direct3D12, Direct3D11 with AMD AGS.
Metal API has an Argument buffer extension, which should be able to emulate such functionality.

Thank you!

void vkCmdDrawIndirectCount( VkBuffer buffer, VkDeviceSize offset, VkBuffer countBuffer, VkDeviceSize countBufferOffset, uint32_t maxDrawCount, uint32_t stride);

void vkCmdDrawIndexedIndirectCount( VkBuffer buffer, VkDeviceSize offset, VkBuffer countBuffer, VkDeviceSize countBufferOffset, uint32_t maxDrawCount, uint32_t stride);