NAME
SDL_GPUIndexedIndirectDrawCommand - A structure specifying the parameters of an indexed indirect draw command.
HEADER FILE
Defined in SDL3/SDL_gpu.h
SYNOPSIS
#include "SDL3/SDL.h"
typedef struct SDL_GPUIndexedIndirectDrawCommand { Uint32 num_indices; /**< The number of indices to draw per instance. */ Uint32 num_instances; /**< The number of instances to draw. */ Uint32 first_index; /**< The base index within the index buffer. */ Sint32 vertex_offset; /**< The value added to the vertex index before indexing into the vertex buffer. */ Uint32 first_instance; /**< The ID of the first instance to draw. */ } SDL_GPUIndexedIndirectDrawCommand;
DESCRIPTION
Note that the first_vertex and first_instance parameters are NOT compatible with built-in vertex/instance ID variables in shaders (for example, SV_VertexID); GPU APIs and shader languages do not define these built-in variables consistently, so if your shader depends on them, the only way to keep behavior consistent and portable is to always pass 0 for the correlating parameter in the draw calls.
AVAILABILITY
This struct is available since SDL 3.2.0.