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how to draw textures faster?

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I need to draw textures pixel by pixel faster.

I can make colors buffer and use it to create texture, but that's not fast enough for me!

I can use fragmentshaders but they update every frame is there any other way to do it that takes advantage of OpenGL performance without updating everyframe?!  

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then.. draw it once to renderTexture and use renderTexture in a sprite later? That works for heavy shaders & filters, but if you want pixi automatically determine whether something was changed - nope, not happenning, i have the fork that does it but its just not possible to open-source, the code is completely bonkers.

Edited by ivan.popelyshev

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