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2014/10/15 ¤U¤È 10:15:06
iphone Programming Glossary: trianglesWhat does the Tiler Utilization statistic mean in the iPhone OpenGL ES instrument? http://stackoverflow.com/questions/1287811/what-does-the-tiler-utilization-statistic-mean-in-the-iphone-opengl-es-instrumen I have been trying to perform some OpenGL ES performance optimizations in an attempt to boost the number of triangles per second that I'm able to render in my iPhone application but I've hit a brick wall. I've tried converting my OpenGL ES.. changes have made a difference in rendering speed. No matter what I can't seem to push my application above 320 000 triangles s on an iPhone 3G running the 3.0 OS. According to this benchmark I should be able to hit 687 000 triangles s on this hardware.. 320 000 triangles s on an iPhone 3G running the 3.0 OS. According to this benchmark I should be able to hit 687 000 triangles s on this hardware with the smooth shading I'm using. In my testing when I run the OpenGL ES performance tool in Instruments..
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 OpenGL.. 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 through Imagination Technologies..
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.. ~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..
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 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..
How many maximum triangles can be drawn on ipad using opengl es in 1 frame? http://stackoverflow.com/questions/6175018/how-many-maximum-triangles-can-be-drawn-on-ipad-using-opengl-es-in-1-frame many maximum triangles can be drawn on ipad using opengl es in 1 frame How many maximum triangles can be drawn on ipad in a single frame. Also.. many maximum triangles can be drawn on ipad using opengl es in 1 frame How many maximum triangles can be drawn on ipad in a single frame. Also is there a limit to the number of gl calls used to draw those triangles iphone.. triangles can be drawn on ipad in a single frame. Also is there a limit to the number of gl calls used to draw those triangles iphone ipad opengl es share improve this question The only limit on total triangles that you'll run into on the iPad..
http://stackoverflow.com/questions/72288/learning-opengl-es-1-x that are old cruft display lists immediate mode things that are in OpenGL but are not directly related to just drawing triangles . Basically unlearn everything that has been declared deprecated in OpenGL 3.0. GL ES 1.x is for pretty simple devices...
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