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SDL Wiki

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 int *color, int color_stride,
                       const float *uv, int uv_stride,
                       int num_vertices,
                       const void *indices, int num_indices, int size_indices);

Function Parameters

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


CategoryAPI


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