Improve slider rendering.#205
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itdelatrisu merged 2 commits intoitdelatrisu:masterfrom Dec 6, 2016
mad-s:master
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Significantly improves looks and performance of sliders, especially on shared memory graphics models like integegrated GPUs. No longer renders using cones and a framebuffer, instead renders quads and triangles for curves, using much less geometry.
Owner
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Awesome, this looks way better. I'll wait a few days before merging in case anyone else wants to comment. Thanks a lot! |
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With this change, the slider curve does not render for me anymore. It just looks like this: I'm on Arch (Linux 4.8.11) with a GTX 760Ti. My OpenGL version string is On a side note, does this glFlush call serve any purpose? It looks redundant to me. EDIT: After some investigation, I found the cause of the issue to be here. We can't use the |
Contributor
Author
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Sorry, I'm not used to writing GLSL 1.1. Should be fixed now. |
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The old code created a framebuffer for every slider drawn, which results in a major performance loss, especially on shared memory systems like integrated GPUs.
The new codes renders a 'ramp', not individual cones, so the sliders look extra smooth.
Also, there is no framebuffer involved, meaning the new sliders can be used on more systems.