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About Strob

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  1. Help With Speeding Up Render

    One thing we must careful with when facing the rendering of such a scene is the intensity of the highlights. If they are too strong (white way above 1) it will cause really high contrast and the sampler will work a lot trying to antialias the jaggy edges. There was some very strong jaggy edge around the highlights in your scenes mostly Test_RenderRS_3.hiplc So I played with the sample filtering settings: I switched it to mitchell (my favorite in V-Ray) and cranked it up to 9 and lower the max subsample and secondary ray intensities, they were way too high I wonder why. And I also lowered one the light intensity. It removed the jaggy edged around the highlights. I get 1min 39 sec. It's the first time I try Redshift and I really love it! Test_RenderRS_3_strob_001.hiplc
  2. Help With Speeding Up Render

    Just enabling memory management get me 1min 42s!
  3. Help With Speeding Up Render

    Cool I will play with these.
  4. Help With Speeding Up Render

    Yes sorry I erased my post it was my bad. I didn't noticed I had my miner running in the background!! I feel like such an idiot!!! Sorry.
  5. Help With Speeding Up Render

    With 4 gpu (1080 ti) the last scene by marty (Test_RenderRS_3.hiplc) took 2 minutes in Redshift demo 2.5.46 (windows 10 , houdini 16.5.268). So 4 gpu is not exactly 4 times faster though (this is compared to 4min 40s by marty with 1 x 1080 ti).
  6. Help With Speeding Up Render

    Interesting thread. I will tesrt you scenes in Mantra and Redshift to help me explore those renderer and will also try it with Vray4Houdini to see how it goes.
  7. Hi Farmfield! Very cool! Thank you so much, I'll check this out tomorrow!
  8. Hi, I am playing witht that very cool example file from the doc: ( local doc only at the bottom of this page: ) It shows how to use a Curve Pop force to direct a flip fluid. What I would like to do now is to use a turbulence force (there is already one in that example on the popforce1 node) to influence only the low speed particles. How can I make a force to influence only the particules moving below a certain speed? And maybe with a little gradient from zero at that speed and becoming greater when the speed becomes lower? I think that would prevent the fastest one to get too much speed and leave the curve path. I got the idea from this example where "Myke" is saying in the comments that he used a turbulence force to influence only the slow particles.:
  9. Yes I am but that doesn't allow me to install a future version of Houdini in present day computers, it's against the rule of spatio-temporal travel. in fact I think I just made a typo by replacing 5 by 6 somewhere...
  10. Ok I see when we uncheck "Ray variance Antialiasing" the individual controls disapear. So for the "adaptive sampling" checkbox, it was for primary rays but it was just postpone. thanks. B
  11. I also contacted support about this and so far I got at least an answer to one of my question: about the "Fine-grained Quality sliders" it's just a mistake in the doc: they are not in the shading tab but in the sampling one. It's just those sliders for reflection.refraction, sss, sampling etc. They were already in 15.5 except for sss. Still waiting to know where are the "adaptive sampling" and "Enable Indirect Sample Limit"...
  12. Ok thanks for your answer Symek! So finally IFDs are more to save money on licenses for commercial users by using their available licenses in the most optimal way. So I guess in the case of Houdini Indie users, we don't really need them at all. We just render using our max of 6 licenses (3 indie and 3 engine) and that's all.
  13. With the Indie license we can't generate ifd files. I never used ifd, so I am wondering what kinds of problems could I met if I use indie to render with Mantra on a small render farm (for example using 6 computers using 3 indie licenses and 3 fee engine licenses which is the limit the indie license can support). I read this: http://www.sidefx.com/docs/houdini/render/ifd_workflows and this: http://www.sidefx.com/docs/houdini/render/ifd But I'm not sure what real difference it could make in the pipeline other than being able to send a smaller file over the network instead of the whole scene. Is it just a matter of the size of the file we send to the slaves for network rendering? if it's the case it should not be a problem for me since I work alone and so I don't have a bottleneck in network transfer and cand distribute huge files pretty fast on my network. Or is there any other differences it could make? also are ifd concerning only mantra or can they be used with redshift, renderman, arnold?
  14. Hi, I am new to mantra (I'm a vray user) and just wanted to find where are the new features that are supposed to be in Mantra in H16 ( I have now 16.0.634 apprentice installed.) In the road map they were talking about new adaptive sampling in H16. But I can't find it anywhere. The funny things is that I see an adaptive checkbox in the rendering=>sampling tab under refraction quality in H15.5.632 but it is nowhere in H16... Also in H16 doc ( http://www.sidefx.com/docs/houdini/nodes/out/ifd#sampling_tab )they mention " Enable Indirect Sample Limits " (maybe just a new name for adaptive sampling) supposed to be right where the adaptive sampling box was in 15.5, but I don't see it in H16. also in the H16 What’s new in Shading, and rendering page ( http://www.sidefx.com/docs/houdini/news/16/rendering ) they mention "Fine-grained Quality sliders on the Mantra node’s Rendering ▸ Shading tab let you increase sampling quality for components (diffuse, SSS, reflection, refraction) individually." But I don't see any fined-grained quality sliders... I hope to see these soon cause in my early tests mantra seems really slow and I hope those settings could accelerate it a lot cause that's what V-Ray uses (among others things) to speed up rendering.
  15. PRT Exporter for Houdini 15.5

    I would be interested to get it for 15.5.565? Here it stops at Or if anyone could give me a clue about how to compile a plugin for a newer version. Any tut about that kind of things?