# SDL_RenderTextureAffine

Copy a portion of the source texture to the current rendering target, with affine transform, at subpixel precision.

## Header File

Defined in [<SDL3/SDL_render.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_render.h)

## Syntax

```c
bool SDL_RenderTextureAffine(SDL_Renderer *renderer, SDL_Texture *texture,
                         const SDL_FRect *srcrect, const SDL_FPoint *origin,
                         const SDL_FPoint *right, const SDL_FPoint *down);
```

## Function Parameters

|                                  |              |                                                                                                                                                     |
| -------------------------------- | ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------- |
| [SDL_Renderer](SDL_Renderer) *   | **renderer** | the renderer which should copy parts of a texture.                                                                                                  |
| [SDL_Texture](SDL_Texture) *     | **texture**  | the source texture.                                                                                                                                 |
| const [SDL_FRect](SDL_FRect) *   | **srcrect**  | a pointer to the source rectangle, or NULL for the entire texture.                                                                                  |
| const [SDL_FPoint](SDL_FPoint) * | **origin**   | a pointer to a point indicating where the top-left corner of srcrect should be mapped to, or NULL for the rendering target's origin.                |
| const [SDL_FPoint](SDL_FPoint) * | **right**    | a pointer to a point indicating where the top-right corner of srcrect should be mapped to, or NULL for the rendering target's top-right corner.     |
| const [SDL_FPoint](SDL_FPoint) * | **down**     | a pointer to a point indicating where the bottom-left corner of srcrect should be mapped to, or NULL for the rendering target's bottom-left corner. |

## Return Value

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

## Thread Safety

You may only call this function from the main thread.

## Version

This function is available since SDL 3.2.0.

## See Also

- [SDL_RenderTexture](SDL_RenderTexture)

----
[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRender](CategoryRender)

