2014/10/15 下午 10:12:57

iphone Programming Glossary: programmable

Are either the IPad or IPhone capable of OpenCL?

http://stackoverflow.com/questions/3258257/are-either-the-ipad-or-iphone-capable-of-opencl

the newer iPhones iPod touches and the iPad all have GPUs that support OpenGL ES 2.0. 2.0 lets you create your own programmable shaders to run on the GPU which would let you do high performance parallel calculations. While not as elegant as OpenCL..

Skybox OpenGL ES iPhone and iPad

http://stackoverflow.com/questions/4110893/skybox-opengl-es-iphone-and-ipad

alternative rendering paths and secondly because the ES 2.x path would be a lot more complicated. ES 2.x is the fully programmable pipeline with pixel and vertex shaders but in ES land the fixed pipeline is completely removed. So if you want one then..

OpenGL ES 1.1: How to change texture color without losing luminance?

http://stackoverflow.com/questions/4361023/opengl-es-1-1-how-to-change-texture-color-without-losing-luminance

Light filters in Photoshop if the color layer was on top of the texture layer. Any ideas for how to do this without programmable shaders Also since these are particles I don't want a black box behind it I want it to add onto the scene. iphone android..

How do I convert the live video feed from the iPhone camera to grayscale?

http://stackoverflow.com/questions/4381513/how-do-i-convert-the-live-video-feed-from-the-iphone-camera-to-grayscale

greyscale filter within it and running your live video frames through that. For OpenGL ES 2.0 you might want to use a programmable shader to achieve this effect. I show how to process live iPhone camera data through various filters in this sample application.. shaders with a writeup on how that works here . In my benchmarks the iPhone 4 can do this processing at 60 FPS with programmable shaders but you only get about 4 FPS if you rely on CPU bound code to do this. Since I wrote the above I've now created..

Choose OpenGL ES 1.1 or OpenGL ES 2.0?

http://stackoverflow.com/questions/4784137/choose-opengl-es-1-1-or-opengl-es-2-0

and texture data set up lighting etc. states and let OpenGL handle the rest for you. OpenGL ES 2.0 is based around a programmable pipeline where you supply vertex and fragment shaders to handle the specifics of how your content is rendered to the screen...

Is number recognition on iPhone possible in real-time?

http://stackoverflow.com/questions/4887313/is-number-recognition-on-iphone-possible-in-real-time

showing a minimal amount of stutter. For even better performance I believe that there's a lot of potential in the programmable GPUs on the newer iOS devices. In my benchmarks I saw a 14X 28X speedup when using the iPhone 4's GPU for simple image processing...

How can I do fast image processing from the iPhone camera?

http://stackoverflow.com/questions/5248497/how-can-i-do-fast-image-processing-from-the-iphone-camera

If you need to maintain OpenGL ES 1.1 compatibility your processing options are much more limited than with 2.0's programmable shaders but you can still do some basic image adjustment. Even if you're doing all of your image processing using the raw..

OpenGL ES 1.x Shaders

http://stackoverflow.com/questions/543948/opengl-es-1-x-shaders