hi all
i started for make easy shader one years ago i build one design pattern and i work now to refactor this and share it in git hub.
i want from any one see my design and have any suggest for me ( change and usage pattern say it)share that here .thanks 
1. why
problem: we know shader source is a hard to write and debug and not oop and not have template
2.what
solution : a: we know we last output is 2 string (vertex , fragment ) we most send parameters too
b: we need make string builder
3. design :
a: see shader structure
// uniforms
// attributes
// varyings
// void main(){
// calculate a vec4 and set to gl_position | gl_FragColor
}
b: make javascript function for build shader parts we need
c: make babylonjs javascript to build a shader material Instance or postprocess inistance
// sample of shader usage
mesh.material = eash.shader(
sh_range({
mat1:sh_solid(0xff0000,1.0)