Pokemon Java Kit
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October 25th, 2012 (4:29 PM).
New York City
Originally Posted by
When you switched to opengl, didn't it start using more CPU?
I don't use Java, but I know about OpenGL. If this happens then it is because of your OpenGL implementation does not use hardware acceleration. Most beginners use the fixed pipeline which is bad and old but everyone's computer supports. A good OpenGL implementation (but which older computers do not support) relies on shaders (generally versions 3.x and up). Shaders are done on the GPU rather the CPU which makes it a whole lot faster and less CPU intensive like which you are seeing.
Under research, I found that the default Java 2D library uses hardware accelerations based on what is supported. The code probably makes it so that it chooses whichever highest OpenGL version you support and uses it. Your implementation probably only uses a single version.
Joined Jul 2007
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