BubblePin S


About Me


Transitioning from a coder to a 3D artist. Houdini was the best option for me after I explored a different number of 3D software applications. I love the procedural workflow in Houdini and how easily accessible the attributes of the geometry are available to the user. This makes it a lot easier to focus on creating a good render and less time wasted on trying to figure out how to access certain geometry points or edges.


My Tutorials

obj-image Quick Tips
Ocean Waves | Flip SIM & RBD Interaction
obj-image Beginner
Pyro FX | Solver
obj-image Beginner
Pyro FX | Simulations
obj-image Beginner
Pyro FX | Smoke Emitters
obj-image Beginner
Mantra Render Settings part 3
obj-image Beginner
Mantra Render Settings | Part 2

Recent Forum Posts

Trying to understand FEM MaterialP & UVW space Sept. 2, 2020, 2:31 p.m.


I've been playing around with FEM lately and I'm trying to picture how the MaterialP and the UVW space is mapped to the position P values that I assign in wrangle nodes. So the most basic:
v@materialP = v@P;

This seems simple enough. But I can't picture the UVW mapping to the geometry.

What I currently understand, or think I understand:
I have tried to manipulated it in various ways to try to understand how it all affects the FEM simulation. I can only speculate that the UVW space is referring to the stress force that is being acted on the FEM object? And according to documentation, by setting materialW, U & V values will be inferred. I'm not sure how that works.

And when I assign something like:
v@materialW = set(-v@P.x, -v@P.y, -v@P.z);

It creates contraction effect, which makes sense to me, because all the vectors are pointing inward, since my object is centered at origin.

Can someone shine a light on how the FEM material UVW mapping looks like, something I can wrap my head around?

Public Renderfarm Licenses Feb. 20, 2020, 7:43 p.m.


I was thinking of creating a public renderfarm that will be available to certain customers. What type of license would I need? Would the Indie license cover this, if my revenue is below $100k ?

Calculating Simulation slow down significantly if cache ram size increased too high July 30, 2019, 11:07 a.m.

I enable checkpoints for every 25 frames or so, because it has helped in recovery from crashes or just when my PC runs out of ram. The overhead speed from checkpoints isn't too bad, but the size of the checkpoint files is what kills me. I remember using checkpoints the first time and it filled my ssd before the render completed.