Hello , I am beginner in houdini , it is a fantastic tool. I have two problems when rendering, because this happens in mantra? 1.- I don`t see procedural effect in mantra. 2.- I don`t see the fold of a grid in mantra.
Just wondering, do you have the render flag set to the nodes that you are viewing? For the nodes with the light blue rectangle, select them and press ‘2’ to set them to render.