# CVOpenGLTexture A texture-based image buffer that supplies source image data to OpenGL. ## Discussion Core Video OpenGL textures are texture-based image buffers used for supplying source image data to OpenGL. ## Topics ### Inspecting Textures [`func CVOpenGLTextureGetName(CVOpenGLTexture) -> GLuint`](/documentation/CoreVideo/CVOpenGLTextureGetName(_:)) Returns the texture target name of a CoreVideo OpenGL texture. [`func CVOpenGLTextureGetTarget(CVOpenGLTexture) -> GLenum`](/documentation/CoreVideo/CVOpenGLTextureGetTarget(_:)) Returns the texture target (for example, `GL_TEXTURE_2D`) of an OpenGL texture. [`func CVOpenGLTextureGetCleanTexCoords(CVOpenGLTexture, UnsafeMutablePointer, UnsafeMutablePointer, UnsafeMutablePointer, UnsafeMutablePointer)`](/documentation/CoreVideo/CVOpenGLTextureGetCleanTexCoords(_:_:_:_:_:)) Returns the texture coordinates for the part of the image that should be displayed. [`func CVOpenGLTextureIsFlipped(CVOpenGLTexture) -> Bool`](/documentation/CoreVideo/CVOpenGLTextureIsFlipped(_:)) Determines whether an OpenGL texture is flipped vertically. [`func CVOpenGLTextureGetTypeID() -> CFTypeID`](/documentation/CoreVideo/CVOpenGLTextureGetTypeID()) Obtains the Core Foundation ID for the Core Video OpenGL texture type. ### Retaining and Releasing Textures [`extern CVOpenGLTextureRefCVOpenGLTextureRetain(CVOpenGLTextureRef texture);`](/documentation/CoreVideo/CVOpenGLTextureRetain) Retains a Core Video OpenGL texture. [`extern void CVOpenGLTextureRelease(CVOpenGLTextureRef texture);`](/documentation/CoreVideo/CVOpenGLTextureRelease) Releases a Core Video OpenGL texture. ### Data Types [`typealias CVOpenGLTexture`](/documentation/CoreVideo/CVOpenGLTexture) A reference to an OpenGL texture-based image buffer object. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)