Houdini Everyday - Part 6 - Rendering

Part 6 of the Houdini Everyday Tutorial Series
- Discussing Mantra Render Settings
- Physically Based Rendering
- Sample Settings
- AOV Outputs
View the full series on our website: www.byccollect...

[@MegaFrederike]

thank you is clear and very useful

[@diegox7767]

The first extended Houdini tutorial series that I followed and recreated alll the steps. Most of the things Ive learned so far was from this series, but I had to find some hacks to make it all work in Solaris, so this 4h series took me about 4 day to complete, to sort evertything out in LOPs, using a USD semi-correct workflow, using Karma XPU and materialX. Thanks a lot!

[@breakyourcrayons]

Great to hear! Very cool to know you were able to recreate it in Solaris 🙌🏻 it’s so great to have Karma now which is much faster but similar to Mantra :) thanks so much for sharing!

[@chenchung6141]

This is very useful. Thank you very much for your efforts.

[@breakyourcrayons]

chen zhong thanks bud! Glad you found it useful.

[@knownby7510]

Without adding material nodes to every individual geometry, how do I assign materials to individual geometry? For example the sphere inside the tube setup - I might have missed something? Thanks so much for your great work.

[@breakyourcrayons]

Double Creative hey, so if you select your geometry node at the obj level. In the properties there is a ‘render’ tab. There is a material selection there that you can assign a material. But keep in mind that it will apply the material to everything in the geometry node.
So if the sphere inside the tube setup in in its own geometry node, then you can apply a material at the object level. If you have a bunch of different objects inside a geometry node, then you need to use material nodes to give each object the material you want.
Hope that makes sense!

[@knownby7510]

​@@breakyourcrayons Thanks for your reply! That makes sense. I went in and rearranged my setup to be like yours so I have one geometry node called 'ALL' and each of the main feature objects in there (the table, sphere, fixture, tube, wires etc). And I noticed you had 'groups' for everything but not necessarily material nodes for each of those (for example the fixture merges straight into the tube without a material node, even though the render is a copper fixture with a white tube). I thought perhaps you were assigning materials to the groups you'd created. But just to confirm, I'll need to add material nodes to each object within the 'ALL' geometry to achieve the same results you have? Thanks! Tom

[@knownby7510]

I just noticed you can select a number of materials in one material node, this must be my answer! Thanks so much for your time, appreciate your amazing tutorials.

[@breakyourcrayons]

Double Creative hey! No worries :) glad you found the tutorials helpful! To answer the question, yes material nodes for each object before they get merged together. Or like you said below, make a group for the object/s and then have 1 material node at the bottom. Add multiple materials using the + button and assign the materials per group.
I think that answers your question :D
Good luck bud!