2014/10/15 下午 10:15:06
iphone Programming Glossary: triangleConvert Flash art to OpenGL-ready vector format? http://stackoverflow.com/questions/1754508/convert-flash-art-to-opengl-ready-vector-format ES keeping it in vector format. An OpenGL ready format could just be a list of vertex positions and colors for a triangle strip. Is there a converter available that can do that easily iphone flash opengl flash cs4 share improve this question..
Advice on speeding up OpenGL ES 1.1 on the iPhone http://stackoverflow.com/questions/1844765/advice-on-speeding-up-opengl-es-1-1-on-the-iphone efficient matrix operations I understand the gl versions aren't too efficient. What about VBOs Update There are 8260 triangles. Texture sizes are 64x64 pngs. There are 58 different textures. I have not run instruments. Update 2 After running the.. is improving performance on older devices then the key is still to cut down on the amount of vertex data needed per triangle. There are two sides to this Reducing the amount of data per vertex Now that all of your vertex attributes are already GL_SHORT.. As an additional bonus you 羮 be able to light your models per pixel. Reducing the number of vertices needed per triangle When drawing with indexed triangles you should make sure that your indices are sorted for maximum reuse. Running your geometry..
Getting “A valid signing identity matching this profile could not be found in your keychain” warning http://stackoverflow.com/questions/2714517/getting-a-valid-signing-identity-matching-this-profile-could-not-be-found-in-yo I created development provisioning profile. I dragged downloaded .mobileprovision file to Organizer There is a yellow triangle warned that A valid signing identity matching this profile could not be found in your keychain The others distribution provisioning..
Detecting Acceleration in a car (iPhone Accelerometer) http://stackoverflow.com/questions/2733249/detecting-acceleration-in-a-car-iphone-accelerometer 5 Then use that force the known magnitude of gravity and the known direction of forward motion to essentially solve a triangle to get the forward vector. The problem that is causing the most difficulty in this new system is not step 5 which I have..
XCode 4: How to send objects in NIB files to front\back? http://stackoverflow.com/questions/3378234/xcode-4-how-to-send-objects-in-nib-files-to-front-back select the objects it contains. This pic shows where to click Or you can expand the object browser use the disclosure triangle on the window object and select from the list there http i.imgur.com 041xz.png but IB in xcode4.2 greys out the option to..
Convert ipad application to iphone. Universal app http://stackoverflow.com/questions/3675858/convert-ipad-application-to-iphone-universal-app universal binary share improve this question Open up your project in Interface Builder. Click on the disclosure triangle next to Targets then right click on the target and choose Upgrade Current Target for iPad... . Then read the iPad Programming..
OpenGL ES - How to Draw a filled Polygon? http://stackoverflow.com/questions/3872464/opengl-es-how-to-draw-a-filled-polygon find anything http stackoverflow.com questions 2842339 mapping irregular shapes or other polygons cartoons sprites to triangles in op I want to draw a filled polygon in OpenGL ES on iPad 2D don't need 3D I'm new to OpenGL OpenGL ES It seems simple.. ES on iPad 2D don't need 3D I'm new to OpenGL OpenGL ES It seems simple on OpenGL but with ES with just can draw triangle. But I can't find any good tutorial about this Does it exist any wrapper library or anything else that could help me I don't.. ~dm CODE GEM chapter.html polygon WITH holes C code Solution I will try using polygon tessellation to get triangles. At first I'm going to try http www.flipcode.com archives Efficient_Polygon_Triangulation.shtml and as I need polygon with..
How to draw a “speech bubble” on an iPhone? http://stackoverflow.com/questions/4442126/how-to-draw-a-speech-bubble-on-an-iphone similar to the one in Mac OS X when you right click on something in the dock. Here's what I have now I need to get the triangle part of the lower portion. Is there any way I can draw something like that and get a border around it This will be for an.. c uiview share improve this question I've actually drawn this exact shape before rounded rectangle with a pointing triangle at the bottom . The Quartz drawing code that I used is as follows CGRect currentFrame self.bounds CGContextSetLineJoin context..
key chain warning The ?�System Roots??keychain cannot be modified http://stackoverflow.com/questions/5401088/key-chain-warning-the-system-roots-keychain-cannot-be-modified the same keychain. step 3 CHECK if there is a private key along with your certificate. you should be able to see tiny triangle beside your certificate. Click on it to see if your private key is present or not step 4 download the provisioning profile..
http://stackoverflow.com/questions/5525436/xcode-could-not-find-a-valid-private-certificate-valid-key-pair-for-this-profile with the certificate once you have both When everything is correctly in place you should see a little disclosure triangle on your certificate which lets you see the key and vice versa on the key page where you should see the certificate under..
OpenGL-ES 2.0 VS OpenGL-ES 1.1, which is faster? http://stackoverflow.com/questions/5682010/opengl-es-2-0-vs-opengl-es-1-1-which-is-faster gains to be found by switching to 2.0. Has anyone done any tests with large polygon count models I only want to render triangles that have different colors nothing fancy. However I am wanting to render about 1 million triangles for my comparison test... only want to render triangles that have different colors nothing fancy. However I am wanting to render about 1 million triangles for my comparison test. iphone ios opengl es opengl es 2.0 share improve this question OpenGL ES 1.1 and 2.0 provide.. OpenGL ES 1.1 by efficiently implementing the fixed function pipeline using shaders. For rendering basic flat colored triangles I'd suggest going with OpenGL ES 1.1 simply because you'll need to write a lot less code. If you are able to get by with..
How can I optimize the rendering of a large model in OpenGL ES 1.1? http://stackoverflow.com/questions/5718846/how-can-i-optimize-the-rendering-of-a-large-model-in-opengl-es-1-1 10 11 frames per second. My question is are there any further improvements I can make to increase rendering speed Will triangle strips make a big difference Currently vertices are not being shared between faces each faces vertices are unique but overlapping...
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 and circumscribed octagons to use instead of my rectangles only I followed the recommendations here for optimizing triangles for rasterization. In previous testing octagons yielded worse performance than squares despite removing many unnecessary.. despite removing many unnecessary fragments and letting you block covered fragments more efficiently. By adjusting the triangle drawing as follows I was able to reduce overall rendering time by an average of 14 on top of the above described optimizations..
MKAnnotationView - Lock custom annotation view to pin on location updates http://stackoverflow.com/questions/6392931/mkannotationview-lock-custom-annotation-view-to-pin-on-location-updates that directly. Didn't have any luck. Despite little oddities that occurred the only thing that moved was the little triangle portion of the callout. I could not get the entire callout to move. Update #2 Still not much luck but have now been looking..
How to draw an oval speech bubble programmatically on iPhone? http://stackoverflow.com/questions/7509348/how-to-draw-an-oval-speech-bubble-programmatically-on-iphone it in two iterations. First get the context and begin a path. Fill an ellipse and then a custom path that encloses a triangle with three lines. I assumed the following dimensions 70 width 62 height. Override draw rect in a subclass of UIView and..
Overlay Color Blend in OpenGL ES / iOS / Cocos2d http://stackoverflow.com/questions/8771413/overlay-color-blend-in-opengl-es-ios-cocos2d ccp 100 0 DrawingHelper drawPolygonWithPoints vertices2 points 3 closePolygon YES Draw helper is the logic to draw the triangle. void drawPolygonWithPoints CGPoint poli points int points closePolygon BOOL closePolygon glDisable GL_TEXTURE_2D glDisableClientState..
Steps to create and edit a plist file in Xcode http://stackoverflow.com/questions/9044735/steps-to-create-and-edit-a-plist-file-in-xcode Apple . Right click in the type section where it currently says String and change it to Array. Click on the disclosure triangle next to where it says Apple so it faces downwards and then right click in the row and choose Add Row This will create a.. key. Repeat this until you have three rows Edit the values to the three items that you want Click on the Disclosure triangle to the left of Apple on the top row so it points to the right. Right click on the row and choose Add Row . This will create..
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