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2014/10/15 ¤U¤È 10:07:53
iphone Programming Glossary: eaglviewHow to get UIImage from EAGLView? http://stackoverflow.com/questions/1352864/how-to-get-uiimage-from-eaglview to get UIImage from EAGLView I am trying to get a UIImage from what is displayed in my EAGLView. Any suggestions on how to do this iphone uikit uiview.. to get UIImage from EAGLView I am trying to get a UIImage from what is displayed in my EAGLView. Any suggestions on how to do this iphone uikit uiview opengl es eaglview share improve this question An EAGLView is.. EAGLView. Any suggestions on how to do this iphone uikit uiview opengl es eaglview share improve this question An EAGLView is just a kind of view and its underlying CAEAGLLayer is just a kind of layer. That means that the standard approach for..
How do I stack images to simulate depth using Core Animation? http://stackoverflow.com/questions/2834985/how-do-i-stack-images-to-simulate-depth-using-core-animation 1.0 500 self.view.layer.transform theTransform super viewDidLoad I have very specific reasons why I'm not using an EAGLView and why I'm not loading the images as CALayers i.e. why I'm using UIImageViews for each one . This is just a quick demo..
Why is my EAGLVIew not rendering anymore in iOS 4.2? http://stackoverflow.com/questions/4270320/why-is-my-eaglview-not-rendering-anymore-in-ios-4-2 in my application another one is asked here . The one I'm gonna ask your help for concerns an OpenGL view an EAGLView subclass that renders no more the 3d model I'm putting in. The view is allocated and it appears to recognize the gestures.. bug has anyone a reference from Apple docs UPDATE 2 I'm using OpenGL ES 1.1 and not 2.0. Here is what I do in EAGLView's layoutSubViews void layoutSubviews EAGLContext setCurrentContext _context self destroyFramebuffer self createFramebuffer..
cocos2d: playing a video in the background of a menu http://stackoverflow.com/questions/4454758/cocos2d-playing-a-video-in-the-background-of-a-menu in this link by ascorbin with help from this link . It is not complete unless you also add the following line to the EAGLView glView.opaque NO The movie view is along side of the EAGLView and pushed to the back to get what you are looking for. You.. complete unless you also add the following line to the EAGLView glView.opaque NO The movie view is along side of the EAGLView and pushed to the back to get what you are looking for. You may also have to tweak the transparency of the EAGLView like.. EAGLView and pushed to the back to get what you are looking for. You may also have to tweak the transparency of the EAGLView like it mentions in that post. Hope that helps. The things I needed to modify are listed here. You need to add apple's mediaPlayer.framework..
Animation in OpenGL ES view freezes when UIScrollView is dragged on iPhone http://stackoverflow.com/questions/4876488/animation-in-opengl-es-view-freezes-when-uiscrollview-is-dragged-on-iphone UIScrollView is dragged on iPhone I have an animated transparent OpenGL ES subview a modification of Apple's template EAGLView class which draws a rotating sphere. Just like Apple's example CADisplayLink is used on devices where available. On the.. a UIScrollView containing UIButtons that can be selected. When the user scrolls the UIScrollView the animation of my EAGLView freezes. This behavior is reproduced on iOS Simulator 4.2 and on iPhone OS 3.1.3 on an iPhone 2G device. Any ideas on what.. on iOS Simulator 4.2 and on iPhone OS 3.1.3 on an iPhone 2G device. Any ideas on what to do to prevent pause of the EAGLView apart from coding my own scroll view iphone opengl es uikit uiscrollview share improve this question Whether CADisplayLink..
Displaying an EAGLView with transparent background on a UIImageView http://stackoverflow.com/questions/5283670/displaying-an-eaglview-with-transparent-background-on-a-uiimageview an EAGLView with transparent background on a UIImageView In my app I have an EAGLView which is displaying some OpenGL 3D model and.. an EAGLView with transparent background on a UIImageView In my app I have an EAGLView which is displaying some OpenGL 3D model and a UIImageView which is displaying some image. What I want is to display EAGLView.. which is displaying some OpenGL 3D model and a UIImageView which is displaying some image. What I want is to display EAGLView above this UIImageView. No matter what I do it keeps displaying UIImageView above EAGLView. Please show me a way to display..
Overlay Color Blend in OpenGL ES / iOS / Cocos2d http://stackoverflow.com/questions/8771413/overlay-color-blend-in-opengl-es-ios-cocos2d And here some results As you can see is a good approximation but this two images has error OpenGL error 0x0502 in EAGLView swapBuffers My Questions are How can I remove or fix this error How can keep only the alpha of the image shield and apply..
How to get UIImage from EAGLView? http://stackoverflow.com/questions/1352864/how-to-get-uiimage-from-eaglview get a UIImage from what is displayed in my EAGLView. Any suggestions on how to do this iphone uikit uiview opengl es eaglview share improve this question An EAGLView is just a kind of view and its underlying CAEAGLLayer is just a kind of layer...
How do I grab an image from my EAGLLayer ? http://stackoverflow.com/questions/314254/how-do-i-grab-an-image-from-my-eagllayer malloc I should be doing. I gather that on OSX it's GL_BGRA but on the iPhone that doesn't work... iphone opengl es eaglview share improve this question All OpenGL ES complient GL implementations have to support GL_RGBA as a parameter to glReadPixels...
Why is my EAGLVIew not rendering anymore in iOS 4.2? http://stackoverflow.com/questions/4270320/why-is-my-eaglview-not-rendering-anymore-in-ios-4-2 It appears rendered correctly. In some way It is related to the view dimensions iphone opengl es ios4 rendering eaglview share improve this question It took me forever to find this out. Not well documented at all but it's in the apple docs...
iPhone take augmented reality screenshot with AVCaptureVideoPreviewLayer http://stackoverflow.com/questions/8980847/iphone-take-augmented-reality-screenshot-with-avcapturevideopreviewlayer autoreleased image UIGraphicsEndImageContext return image UIImage snapshot GLView eaglview NSInteger x 0 NSInteger y 0 NSInteger width eaglview backingWidth NSInteger height eaglview backingHeight NSInteger dataLength.. UIGraphicsEndImageContext return image UIImage snapshot GLView eaglview NSInteger x 0 NSInteger y 0 NSInteger width eaglview backingWidth NSInteger height eaglview backingHeight NSInteger dataLength width height 4 NSUInteger i for i 0 i 100 i glFlush.. UIImage snapshot GLView eaglview NSInteger x 0 NSInteger y 0 NSInteger width eaglview backingWidth NSInteger height eaglview backingHeight NSInteger dataLength width height 4 NSUInteger i for i 0 i 100 i glFlush CFRunLoopRunInMode kCFRunLoopDefaultMode..
Capturing EAGLview content WITH alpha channel on iPhone http://stackoverflow.com/questions/962390/capturing-eaglview-content-with-alpha-channel-on-iphone but I can not get the image with its alpha values. Any help appreciated. Thanks iphone opengl screenshot alpha eaglview share improve this question Two places I can see that you might be losing your transparency when you're drawing your..
Why is my EAGLVIew not rendering anymore in iOS 4.2? http://stackoverflow.com/questions/4270320/why-is-my-eaglview-not-rendering-anymore-in-ios-4-2
http://stackoverflow.com/questions/946700/glpaint-save-image to OpenGL calls using the GLPaint example as a reference point. Is there a way to get a UIImage CGImage from the EAGLview class the equivalent of Quartz's UIGraphicsGetImageFromCurrentImageContext Basically I need to save the pictures drawn by..
Capturing EAGLview content WITH alpha channel on iPhone http://stackoverflow.com/questions/962390/capturing-eaglview-content-with-alpha-channel-on-iphone EAGLview content WITH alpha channel on iPhone have been struggling with this issue for quite some time now and couldn't find an.. for quite some time now and couldn't find an answer so far. Basically what I want to do is capturing the content of my EAGLview and then use it to merge it with other images. Anyway the mainproblem is that everything transparent in my EAGLview renders.. my EAGLview and then use it to merge it with other images. Anyway the mainproblem is that everything transparent in my EAGLview renders opaque when saving it to the photoalbum or putting it into a UIImageView. Let me share some code with you I found..
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