//Copy Sop
$PT : The Point Number of the Template-> me.inputPoint.index
$CY – The Number of Copies. -> me.copyIndex
$NCY – The Number of Copies -> me.copyTotal
< //Primative Sop &PR : Primitive number -> me.inputPrim.index


//Primitive Sop
$CEX, $CEY, $CEZ – The centroid of the primitive.
-> me.inputPrim.center[0]/me.inputPrim.center[1]/me.inputPrim.center[2]
$NX, $NY, $NZ – The normal of the primitive. Will be 0 for some primitives like sphere and tube (which don’t have normals).
-> me.inputPrim.normal[0] / me.inputPrim.normal[1] / me.inputPrim.normal[2]
$CR, $CG, $CB – Red, green and blue primitive color.
-> me.inputColor[0] / me.inputColor[1] / me.inputColor[2]
Index of primavitve me.inputPrim.index


//Point Sop
$TX TY TZ :The point position -> me.inputPoint.x / me.inputPoint.y / me.inputPoint.z
For particles
$LIFE : me.inputPoint.life[0]

//For Expression Chop
first channel of first input is ‘ me.inputs[0][0]


//Someting input
me.inputVal
me.inputs[0][0]

//Turn on/off render flag
op.render = 1 -> Turn on
op.render = 0 -> Turn off


//See https://www.derivative.ca/wiki088/index.php?title=Python_Tips