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2014/10/15 ¤U¤È 10:04:07

iphone Programming Glossary: atlas

OpenGL ES 2.0 texture distortion on large geometry GL_REPEAT

http://stackoverflow.com/questions/11370074/opengl-es-2-0-texture-distortion-on-large-geometry-gl-repeat

iphone rendering opengl es 2.0 texture mapping distortion share improve this question This is the usual texture atlas problem. There is no setting to limit the linear interpolation in mid texture. That's how the hardware works. You can work..

Does -dataWithContentsOfURL: of NSData work in a background thread?

http://stackoverflow.com/questions/3078765/does-datawithcontentsofurl-of-nsdata-work-in-a-background-thread

How to detect maximum texture resolution on iPhone?

http://stackoverflow.com/questions/3240636/how-to-detect-maximum-texture-resolution-on-iphone

is no larger than 1024x1024 while iPhone 3GS can handle larger textures. So on iPhone 3GS I want to load a texture atlas that's 2048x2048 while iPhone 2G will get the downscaled 1024x1024 texture atlas. Is there a simple and safe way to detect.. iPhone 3GS I want to load a texture atlas that's 2048x2048 while iPhone 2G will get the downscaled 1024x1024 texture atlas. Is there a simple and safe way to detect the maximum texture resolution available to openGL on any said device iphone..

Why is this OpenGL ES code slow on iPhone?

http://stackoverflow.com/questions/450042/why-is-this-opengl-es-code-slow-on-iphone

much less overlapping is done. There are ~400 quads 800 triangles spread on the whole screen. Texture size is 512x512 atlas and RGBA_8888 while the texture coordinates are in float. The code is very ugly in terms of API efficiency there are two..

OpenGL Texture Coordinates in Pixel Space

http://stackoverflow.com/questions/5879403/opengl-texture-coordinates-in-pixel-space

how to implement it. My end goal would be to accomplish something like this where the texture I'd be using within the atlas is in the upper left 48px square GLshort texcoords 48 48 0 48 48 0 0 0 glVertexAttribPointer ATTRIB_TEXTUREPOSITON 2 GL_SHORT..

How to do animations using images efficiently in iOS

http://stackoverflow.com/questions/8112698/how-to-do-animations-using-images-efficiently-in-ios

based on Open GL specifically designed for games. In your case the advantages you would get are using texture atlas instead of individual images to save as much memory as possible using the PVR format for your images vs. PNG PVR is the..