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POCrop a UIImage to use with GLKTextureLoader
 

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    <p>I am trying to crop an area out of a UIImage to use with GLKTextureLoader. I can set the texture directly using the the UIImage with the following:</p> <pre><code>- (void)setTextureImage:(UIImage *)image { NSError *error; texture = [GLKTextureLoader textureWithCGImage:image.CGImage options:nil error:&amp;error]; if(error) { NSLog(@"Texture Error:%@", error); } else { self.textureCoordinates[0] = GLKVector2Make(1.0f, 1.0f); self.textureCoordinates[1] = GLKVector2Make(1.0f, 0); self.textureCoordinates[2] = GLKVector2Make(0, 0); self.textureCoordinates[3] = GLKVector2Make(0, 1.0f); } } </code></pre> <p>However, if I try crop the image this way:</p> <pre><code>- (void)setTextureImage:(UIImage *)image { NSError *error; CGImageRef imageRef = CGImageCreateWithImageInRect(image.CGImage, CGRectMake(0.0, 64.0f, 64.0f, 64.0f)); texture = [GLKTextureLoader textureWithCGImage:imageRef options:nil error:&amp;error]; if(error) { NSLog(@"[SF] Texture Error:%@", error); } else { self.textureCoordinates[0] = GLKVector2Make(1.0f, 1.0f); self.textureCoordinates[1] = GLKVector2Make(1.0f, 0); self.textureCoordinates[2] = GLKVector2Make(0, 0); self.textureCoordinates[3] = GLKVector2Make(0, 1.0f); } } </code></pre> <p>I get this error:</p> <pre><code>Texture Error:Error Domain=GLKTextureLoaderErrorDomain Code=12 "The operation couldn’t be completed. (GLKTextureLoaderErrorDomain error 12.)" UserInfo=0x6a6b550 {GLKTextureLoaderErrorKey=Image decoding failed} </code></pre> <p>How can I take a section of the UIImage to use as a texture with GLKTextureLoader?</p>
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