SDL_DrawGPUPrimitives3
Draws data using bound graphics state.
Usage
#include "SDL3/SDL.h"
void SDL_DrawGPUPrimitives( SDL_GPURenderPass *render_pass, Uint32 num_vertices, Uint32 num_instances, Uint32 first_vertex, Uint32 first_instance);
Header file
Defined in SDL3/SDL_gpu.h
Overview
You must not call this function before binding a graphics pipeline.
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.
Function parameters
render_pass
|
a render pass handle. |
|---|---|
num_vertices
|
the number of vertices to draw. |
num_instances
|
the number of instances that will be drawn. |
first_vertex
|
the index of the first vertex to draw. |
first_instance
|
the ID of the first instance to draw. |