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Houdini Generalist, Lighting / Shading Artist (The Netherlands) March 19, 2018, 3:25 a.m.

Demcon-Nymus3D ( ) creates high-end animations for clients such as Harvard, CERN, the Pasteur institute, Industrial Light and Magic, Pharmaceutical companies, and research institutes and businesses all over the world. We are looking forward to welcoming a new colleague who is:
- Very much at home in Houdini, particularly lighting, shading and rendering in Mantra
- Flexible and open to feedback
- Interest – or background - in science is a big plus

We offer:
- A full-time position in Enschede, The Netherlands
- A very open, informal environment among highly capable and motivated colleagues
- Challenging, yet satisfying projects and clients
- A workspace that encourages initiative and development of new techniques

For additional information, please PM me, or contact Vincent Bos on +31 88 115 2000. To apply for the position, send your application and C.V. to, to the attention of Marleen Blanckenborg, Recruiter

Handle Setup With HScript Dec. 11, 2017, 2:13 a.m.

I asked SESI this as I was dealing with creating handles for assets. Here's their reply…

The movetool_candidate flag is used to indicate whether the handle can simply be changed to support one of the move tools (translate/rotate/scale). The ownerop setting specifies an alternate node whose space is used for the handle to operate in. The owneropgroup setting specifies the name of the group parameter on its owner node. This is used by the handle to know which geometry it should use to compute centroids for positioning itself.

I must admit I'm still a bit baffled by the movetool_candidate explanation.

Help With Speeding Up Render Nov. 6, 2017, 4:16 p.m.

Hi all,
I was determined to get a clean render out of mantra for this sequence, which I sort of managed to do, but the render times are just too high. I'm looking at over 5 hours per frame for something that is quite simple, as you can see from the attached screen shot.

I could get something that looked reasonable, but to stop the highlights crawling between frames I just had to turn pixel samples up high. Nothing else seemed to sort out this problem (light quality & reflection quality just didn't work). The particular point I focused on was an area on the glass, on the centre of the image at the top - there's a small rectangular reflection from one of the lights, and where this went over the inner lip of the glass there were just always fireflies. The only thing that removed them was cutting the colour limit to 4 (from 10) which dulls the image, and turning up pixel samples to 12x12, which everyone seems to think is very high.

I feel there's something I'm missing when it comes to getting a clean render. I've attached the hip file which contains the geometry and the hdr so, if anyone is able to help, just open the scene and see if you can get a better render time than I did.