opengl-es-2.0

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Capture and stop propagation of user interaction iOS UITableViewCell

I am doing some custom drawing a UITableViewCell that I have subclassed. In there there is an OpenGL ES 2.0 control that needs user interaction to work... now if I start dragging horizontally the cont[详细]

2023-03-25 21:41 分类：问答
Drawing custom shapes in an iOS game built upon cocos2d

I\'m looking to draw a custom shape (say, a solid rectangle) using openGL ES in an iOS game built upon the Cocos2d framework.In another StackOverflow question, I saw a suggestion to use [CCDirector sh[详细]

2023-03-25 07:26 分类：问答
Draw texture on touch in openGL iphone

Recently started with OpenGL, I have managed to draw a background image on screen and frame buffer. All works fine. Problem comes when I create new texture and add it to 开发者_如何学Goframe buffer.[详细]

2023-03-24 18:04 分类：问答
In OpenGL ES 2.0, how can I draw a wireframe of triangles except for the lines on adjacent coplanar faces?

I vaguely remember seeing something in OpenGL (not ES, which was still at v1.0 on the iPhone when I came across this, which is why I never used it) that let me specify which edges of my polygons were[详细]

2023-03-24 05:16 分类：问答
Use of glBindAttribLocation function in OpenGL ES

I dont get the use of glBindAttribLocation function in OpenGL ES 2.0 Can some one give me the full context ? Is it something like[详细]

2023-03-24 01:47 分类：问答
OpenGLES2.0 How to track down "Texture is a uniform color" bug - need ideas.

I have this problem with the display of my textured VBOs on OpenGLES20 (testing on an android motorola Xoom), where textures would appear as if they were taken from a single dot of the texture instead[详细]

2023-03-23 22:34 分类：问答
Creating blur filter with a shader - access adjacent pixels from fragment shader?

I want to create a blur effect using a fragment shader in OpenGL ES 2.0.The algorithm I am interested in is simply an averaging blur - add all adjacent pixels to myself and divide by 9 to normalize.[详细]

2023-03-23 21:27 分类：问答
How to create a high-resolution offscreen fragment shader?

I figured out my fragment shader is limited to the pixel dimensions of the OpenGL ES viewport. Could I create an \"offscreen fragment shader\" or rendering environment which has 开发者_JAVA百科a lot[详细]

2023-03-23 12:08 分类：问答
OpenGL 2D: glColor4 has no effect - what have I missed?

I\'m porting a game from WP7 XNA to Android; everything was working using Canvas but it was too slow so I\'ve switched to OpenGL ES, following the examples of Replica Island and SpriteMethodTest.[详细]

2023-03-23 06:50 分类：问答
glError 1282 in the Nexus S but not in the Nexus One

I am creating a live wallpaper using openGL ES 2.0. The app works great in my nexus one but it doesn\'t not show anything in a Nexus S.[详细]

2023-03-23 06:18 分类：问答