2014/10/15 下午 10:13:39

iphone Programming Glossary: scene

http://stackoverflow.com/questions/1024603/opengl-es-render-to-texture

ES Render to Texture I have been having trouble finding straightforward code to render a scene to a texture in OpenGL ES specifically for the iPhone if that matters . I am interested in knowing the following How do.. OpenGL ES specifically for the iPhone if that matters . I am interested in knowing the following How do you render a scene to a texture in OpenGL ES What parameters must you use to create a texture that is capable of being a render target in OpenGL..

Cocos2D 2.0 screenshots on iOS 6

http://stackoverflow.com/questions/12413460/cocos2d-2-0-screenshots-on-ios-6

2.0 screenshots on iOS 6 I have an application that takes a screenshot of a scene and saves it to a file. I have this working and the application is on the store. Today I have downloaded iOS 6 and the method.. height winSize.height rtx begin startNode visit rtx end return rtx getUIImage You can call it like this CCScene scene CCDirector sharedDirector runningScene CCNode n scene.children objectAtIndex 0 UIImage img AppController screenshotWithStartNode..

How can you track motion using the iPhone's camera?

http://stackoverflow.com/questions/3933716/how-can-you-track-motion-using-the-iphones-camera

processing of images and video. One of the recent additions to that is a GPUImageMotionDetector class that processes a scene and detects any kind of motion within it. It will give you back the centroid and intensity of the overall motion it detects..

Basic Drag and Drop in iOS

http://stackoverflow.com/questions/4707858/basic-drag-and-drop-in-ios

of different strategies iphone ipad ios drag and drop touch share improve this question Assume you have a UIView scene with a background image and many vehicles you may define each new vehicle as a UIButton UIImageView will probably work too..

cocos2d-iOS - Gesture recognisers

http://stackoverflow.com/questions/4985917/cocos2d-ios-gesture-recognisers

gr CCDirector sharedDirector openGLView removeGestureRecognizer gr This particular code is used in a superclass for scene controllers so the target for the selector is hard coded to self but you could easily abstract that to a passed in object...

Oolong, SIO2 or commercial Game engine for 3D iPhone Games newbie?

http://stackoverflow.com/questions/601690/oolong-sio2-or-commercial-game-engine-for-3d-iphone-games-newbie

that format or not so I could be wrong. If you're curious SIO2 provides a python script that exports the Blender scene to a zip file. Then from inside the SIO2 code you reference your objects from the scene and pull them in to your iPhone..

How can I improve the performance of my custom OpenGL ES 2.0 depth texture generation?

http://stackoverflow.com/questions/6051237/how-can-i-improve-the-performance-of-my-custom-opengl-es-2-0-depth-texture-gener

not let you write to gl_FragDepth so I've needed to output these values to a custom depth texture. I do a pass over my scene using a framebuffer object FBO only rendering out a color that corresponds to a depth value with the results being stored.. disabled GL_BLEND is enabled with glBlendFunc GL_ONE GL_ONE and glBlendEquation is set to GL_MIN_EXT . I know that a scene output in this manner isn't the fastest on a tile based deferred renderer like the PowerVR series in iOS devices but I can't.. never be rendered. To do this I enable depth testing and then draw out the squares that make up the objects in my scene shrunken by sqrt 2 2 with a simple opaque shader. This will create inset squares covering area known to be opaque in a represented..

When an iOS application goes to the background, are lengthy tasks paused?

http://stackoverflow.com/questions/6650717/when-an-ios-application-goes-to-the-background-are-lengthy-tasks-paused

automatically be suspended and resumed when the user comes back to my app What exactly will happen behind the scene when my app enters the background or resumes in the foreground What if when users let my app go to the background my app's..

SplitView like Facebook app on iPhone

http://stackoverflow.com/questions/7775195/splitview-like-facebook-app-on-iphone

like Facebook app on iPhone I want to create an iPhone app that uses a navigation scene similar to the one pictured in the link Please note I do not want this to only work for iPad I want it to work for iPhone..

How to change a particular color in an image?

http://stackoverflow.com/questions/8046643/how-to-change-a-particular-color-in-an-image

a minimum size using a blob detection library like cvBlobsLib . This will get rid of dots of the similar color in the scene. Mask the color with cvInRangeS and use the resulting mask to apply the new hue. cvMerge the new image with the new hue..

iPhone Storyboard: different scene for portrait and landscape

http://stackoverflow.com/questions/8777629/iphone-storyboard-different-scene-for-portrait-and-landscape

Storyboard different scene for portrait and landscape If you scroll down a bit at this Apple Developer Page you'll find the section Creating an Alternate.. modal view when orientation changes. I am using the Storyboard feature so I don't have NIBs. How do I load a different scene in that case Besides that I am using a Tab Bar controller I don't want to show a modal view. I just want to replace the..

Faster alternative to glReadPixels in iPhone OpenGL ES 2.0

http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0

FBO with an attached texture with that texture having been supplied from the texture cache. Once you render your scene into that FBO the BGRA pixels for that scene will be contained within your CVPixelBufferRef so there will be no need to.. texture having been supplied from the texture cache. Once you render your scene into that FBO the BGRA pixels for that scene will be contained within your CVPixelBufferRef so there will be no need to pull them down using glReadPixels . This is much..