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# wandersonp

Members

111

1

## Community Reputation

9 Neutral

• Rank
Initiate
• Birthday December 16

## Contact Methods

• Website URL http://vimeo.com/misterson

## Personal Information

• Name Wanderson
• Location Brazil
• Interests computer graphics, programming, math

thanks marty
2. ## Its possible to render just a small rectangle area for each frame?

Hey guys I have a curiosity about render, its possible to render just a small rectangle area for a frame which contains the object that is moving and make that way to render all frames? like a per frame crop, to optimize the black render processing for mantra Thanks
3. ## Hard Constraint at some tetrahedrons in FEM Simulation

Hey guys Im trying to create a hard constraint in some points of a tetrahedralize geometry, and I apply that s@constraint_name = "hard"; s@constraint_type = "position"; how can I do to stick the ground pieces in my FEM simulation and make the shape behave like soft rubber or iron. Thanks bar_deforming_FEM_v001_t001.hip
4. ## RBD packed in Bullet, ptnum change when object is active

Thanks a lot Tomas and Cameron
5. ## RBD packed in Bullet, ptnum change when object is active

Recently I discover something interesting after smash my head against wall for a few days. Im creating a simulation using bullet and packed prims, and I need activate (using i@active variable ) the pieces in choreographed way over the frames But the thing make me crazy is that bullet change ptnum of each packed primitive over the time, and I think is about some priority list inside the algorithm of the solver. because after the simulation I need to atach some atributes for each simulated piece. Then I realize that I need to attach theses attributes before simulation or atach some sort of ptnum tracking for them. bullet activate order points_v001.hip
6. ## Procedural growth formation like "The Crew Game Cinematic"

Hey guys, I recently watched this cinematic from The Crew game And I appreciate some advice to create this piece formation with lines and some kind of voronoi procedural inside. Thanks https://www.vimeo.com/117897084
7. ## Useful use of tangent function

edward, thats fantastic, thanks a lot for the explanation and links.
8. ## Useful use of tangent function

Hey guys in my work daily I use frequently cos, sin, acos, asin, I know that dot is cossine between the given 2 vectors, and the magnitude o cross between 2 vectors is sin of angle between this 2 vectors, this stuff make a lot of sense to me right now. but what I dont recognize yet is the use of tangent, in procedural and simulation stuff. I understand the graphic function but not a usefull use of that in daily work. Can anyone show me simple example of the tangent function? Which I can use in real work. Thanks
9. ## Sky rig clouds Rendered with microvoxel flicking issue

thanks iamyog I found a possible solution and works for my deadline, I was using a parent animated NULL at sky rig volume to opposite the movement from the airplane , I removed animation from the container and become static, and increase the shading quality multiplier from mantra node to 4.
10. ## Sky rig clouds Rendered with microvoxel flicking issue

Hey guys I have some issues with microvoxel rendering I using 8x8 sampling and volume quality 1 even with this parameters I got the frame flicking, its like density randomize at some places of the clouds. there is some parameters to tweak to get much better frame by frame consistency?
11. ## Which Gas solver have the Navier Stoke algorithm inside?

I found the non divergent project nodes have the navier stokes equation hardcoded in c++.
12. ## Which Gas solver have the Navier Stoke algorithm inside?

just for curiosity stuff the navier stoke is coded inside Gas project Non Divergent nodes?
13. ## Rest Field examples? how to use that field in Pyro?

Hey guys recently I saw that rest field inside pyro solver, that I read at Stalingrad Article to create flames in SideFX site, but I dont have any idea how to use that , anyone have a document/explanation for this? Thanks
14. ## Most used python modules in a normal day for Houdini TD/Pipeline

Hey guys, Im digging at python outside the normal hom model from houdini, which modules u guys use daily Im studying around these, glob, subprocess, sys, Qtcore, shutil, which one I need to add to my study list. Thanks Wanderson
15. ## Where is the opdef folder in windows SO?

thanks edward