(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_RenderGeometryRaw

Render a list of triangles, optionally using a texture and indices into the vertex arrays Color and alpha modulation is done per vertex (SDL_SetTextureColorMod and SDL_SetTextureAlphaMod are ignored).

Header File

Defined in <SDL3/SDL_render.h>

Syntax

bool SDL_RenderGeometryRaw(SDL_Renderer *renderer,
                   SDL_Texture *texture,
                   const float *xy, int xy_stride,
                   const SDL_FColor *color, int color_stride,
                   const float *uv, int uv_stride,
                   int num_vertices,
                   const void *indices, int num_indices, int size_indices);

Function Parameters

SDL_Renderer *	renderer	the rendering context.
SDL_Texture *	texture	(optional) The SDL texture to use.
const float *	xy	vertex positions.
int	xy_stride	byte size to move from one element to the next element.
const SDL_FColor *	color	vertex colors (as SDL_FColor).
int	color_stride	byte size to move from one element to the next element.
const float *	uv	vertex normalized texture coordinates.
int	uv_stride	byte size to move from one element to the next element.
int	num_vertices	number of vertices.
const void *	indices	(optional) An array of indices into the 'vertices' arrays, if NULL all vertices will be rendered in sequential order.
int	num_indices	number of indices.
int	size_indices	index size: 1 (byte), 2 (short), 4 (int).

Return Value

(bool) Returns true on success or false on failure; call SDL_GetError() for more information.

Thread Safety

You may only call this function from the main thread.

Version

This function is available since SDL 3.1.3.