SDL Wiki
(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development 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).

Syntax

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

Function Parameters

renderer The rendering context.
texture (optional) The SDL texture to use.
xy Vertex positions
xy_stride Byte size to move from one element to the next element
color Vertex colors (as SDL_Color)
color_stride Byte size to move from one element to the next element
uv Vertex normalized texture coordinates
uv_stride Byte size to move from one element to the next element
num_vertices Number of vertices.
indices (optional) An array of indices into the 'vertices' arrays, if NULL all vertices will be rendered in sequential order.
num_indices Number of indices.
size_indices Index size: 1 (byte), 2 (short), 4 (int)

Return Value

Return 0 on success, or -1 if the operation is not supported

Version

This function is available since SDL 2.0.18.


CategoryAPI


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