Construct Shader Graph

I just added support for it as well as an example

Brilliant!

The example doesn't compile properly when Shader Language is WebGPU or OpenGL2:

Unhandled Rejection: Error compiling fragment shader: ERROR: 0:34: 'varying' : Illegal use of reserved word

(It does work with OpenGL1)

Oh? Oops I will look into it

Thanks for the report Zizaco

This should now be fixed :)