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How to render to texture?

Posted: Wed Mar 29, 2017 8:41 pm
by Jmac
I want to do some calculations on the gpu using shaders and save the results in a texture is this possible with the engine atm and if not where can I look to start implementing this?

Re: How to render to texture?

Posted: Thu Mar 30, 2017 4:19 pm
by irei1as
I use a postFX as a tool to update a texture manipulated inside a shader.

You can see what I tried in this resource:
viewtopic.php?f=23&t=714

You see that in the PostFX MapTest I chooose the target to be a named texture "#maptexture".
Also check the functions related to MapTest like the function MapTest::setShaderConsts(%this).

But named textures are "special" "named" textures in the engine. I'm not sure if it'll help you in your particular case.
Maybe the c++ code I mention at the start can help you to change a named texture into a generic texture if you need that.