OO Toolkit with Infix Operators

Combine the following:

Constructor functions that return references
Garbage collection over DAG references
Operator overloading on references

Lifted operators act on shade trees, not values.

//--- Texture coordinate generators
rShParam hv = shParabolic(GL_H0,GL_T,GL_S,GL_N);
rShParam lv = shParabolic(GL_L0,GL_T,GL_S,GL_N);

//--- Shader expression
shCompile(1,
    ((shTexture(a,hv) * shTexture(b,lv) + 
        shSignedTexture(c,hv) * shSignedTexture(d,lv)) << 3
    ) * shLighting(0)
);

//--- Activate shaders
glShader(1);