(This is for pen+v7) Add MRT to pen+v7

[milkyestway]

MRT for those who don't recognise this is Multiple Render Targets. This is useful when you want to rasterize a scene then apply effects to it like lighting to be more efficient(defferred rendering). When doing things like that you want to have one vertex shader execution and then multiple fragment shaders to write position, normals, color and more. This could be used for more things but I think this would be really cool, thanks :)

[milkyestway]

This is added in the pen+v8.0.0b which can be downloaded from the extension gallery online by copying the url for the experimental version, downloading it and renaming it to .js You now add channels and access them by typing in layout(location = 0) out vec4 fragColor; changing from 0 to 1 and so on for each channel. I hope this helped anyone who was wondering :)