---
name: "SDL_RenderTextureAffine"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_RenderTextureAffine"
---

# SDL\_RenderTextureAffine(3)

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

## NAME

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

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**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

- *renderer*

  the renderer which should copy parts of a texture.

- *texture*

  the source texture.

- *srcrect*

  a pointer to the source rectangle, or NULL for the entire texture.

- *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.

- *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.

- *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

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.

## AVAILABILITY

This function is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_RenderTexture**(3)](/SDL_RenderTexture/3.md)