Chaos Corona Forum
General Category => Gallery => Topic started by: Alexbuk on 2013-10-24, 10:20:43
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Hello everyone! Just sorry for my english =)
Recently joined the Corona-great program. Thank you very much, and the success of its creator. I will try and share the results here
I would be grateful if you write criticism-_-
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nice render..I'm completely new to corona..so no crits from me yet :)
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Hi, i would try following in order to improve rendering performance in this scene:
1, set HDcache as secondary GI
2, In all of your glass materials, set refraction mode to hybrid
3, On all of your leaf materials on trees, go to opacity map, and set filtering to none (default is pyramidal)
Could you try this and post render after same time to compare? Thanks! :)
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Hi, i would try following in order to improve rendering performance in this scene:
1, set HDcache as secondary GI
2, In all of your glass materials, set refraction mode to hybrid
3, On all of your leaf materials on trees, go to opacity map, and set filtering to none (default is pyramidal)
Could you try this and post render after same time to compare? Thanks! :)
Thank you very much! Now I will try =) and upload a "clean" rendering and post-processing
One moment Ravalanche ... On opacity MAP I did not use any cards installed on the ... map translucency. So I change the filter on the translucency to none instead of pyramidal?
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Hi, i would try following in order to improve rendering performance in this scene:
1, set HDcache as secondary GI
2, In all of your glass materials, set refraction mode to hybrid
3, On all of your leaf materials on trees, go to opacity map, and set filtering to none (default is pyramidal)
Could you try this and post render after same time to compare? Thanks! :)
Thank you very much! Now I will try =) and upload a "clean" rendering and post-processing
One moment Ravalanche ... On opacity MAP I did not use any cards installed on the ... map translucency. So I change the filter on the translucency to none instead of pyramidal?
Does that mean that all leaves on the trees are modeled, and do not use opacity maps? There is no need to disable filtering for translucency, just for opacity ;)
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3, On all of your leaf materials on trees, go to opacity map, and set filtering to none (default is pyramidal)
Should this be done in Corona as well ? All my Vray leaves are set-up that way but I haven't found big performance difference in Corona and I quite like the filtered look, esp. in Firs.
Edit: Just saw Cecofuli's tests, well interesting. Seems like it is indeed faster as well. Oddly I haven't experienced it. Will take some time until I get to nature again..
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Hi, i would try following in order to improve rendering performance in this scene:
1, set HDcache as secondary GI
2, In all of your glass materials, set refraction mode to hybrid
3, On all of your leaf materials on trees, go to opacity map, and set filtering to none (default is pyramidal)
Could you try this and post render after same time to compare? Thanks! :)
Thank you very much! Now I will try =) and upload a "clean" rendering and post-processing
One moment Ravalanche ... On opacity MAP I did not use any cards installed on the ... map translucency. So I change the filter on the translucency to none instead of pyramidal?
Does that mean that all leaves on the trees are modeled, and do not use opacity maps? There is no need to disable filtering for translucency, just for opacity ;)
Yes. It can be said that the leaves are made geometry. Who am submitting changes on items 1 and 2 and will upload here renders. thank you
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In both cases, the post-processing is not done on purpose. Even in the settings of the Corona.
Here is the first rendering without external post processing
Render time: 2 hours
Passes 34
Resolution: 2200h2200 pixels. Jpeg
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Here is the second rendering (also without post processing), in which I:
1. HD cache found in Secondary solver
2. Set the type of Refraction on Hybrid
Render time: 2 hours
Passes:48
Resolution: 2200h2200 pixels. Jpeg
My observations:
1. Reflection and refraction in the glass more clear and clean.
2. Render times faster than 1.5 or even 2 times!
3. Quality, clarity is better. less noise
questions:
1. What type of refraction different from Hybrid ---Oneside?
2. What HD cache algorithm differs from the Path tracing?
Thank you very much!
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Hybrid glass mode means glass will use transparent shadows instead of caustics. It is very confusing term and hopefully it will be renamed soon. It is feature similar to affect shadows checkbox in VrayMTL. In this particular case, there would be almost no difference between caustics and transparent shadows for glass windows, but transparent shadows are a LOT faster than tracing caustics.
HDcache is interpolated GI method that is very fast with little loss of accuracy. Similar to Light Cache in Vray in some ways. Path Tracing is brute force GI solution. So having path tracing set for both primary and secondary GI means complete GI solution will be computed using brute force.
Having primary GI set to Path Tracing and secondary to HDCache means only primary bounce will be brute forced, and interpolated GI will be used for all secondary bounces. That will speed things up a lot, especially for interiors.
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Hybrid glass mode means glass will use transparent shadows instead of caustics. It is very confusing term and hopefully it will be renamed soon. It is feature similar to affect shadows checkbox in VrayMTL. In this particular case, there would be almost no difference between caustics and transparent shadows for glass windows, but transparent shadows are a LOT faster than tracing caustics.
HDcache is interpolated GI method that is very fast with little loss of accuracy. Similar to Light Cache in Vray in some ways. Path Tracing is brute force GI solution. So having path tracing set for both primary and secondary GI means complete GI solution will be computed using brute force.
Having primary GI set to Path Tracing and secondary to HDCache means only primary bounce will be brute forced, and interpolated GI will be used for all secondary bounces. That will speed things up a lot, especially for interiors.
Thank you very much Ravalanche.! I get it. I will try to implement these moments s renderings of their future. I really noticed the difference. You and a team of developers CORONA - well done! Good luck to you, I am glad that I have the opportunity to participate in this and try this renderer =)
Now I will share my observations and renders of the developers and alpha testers here.I would like to wish all of you success!
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CORONA try in the interior. Something that is understandable, but not always cope with the noise. Especially in the shade. Tell me because of what it could be? Thanks in advance =)
Oh, and here used PT + HD 60 passes in 90 minutes
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hi, check this first: http://corona-renderer.com/wiki/performance_debugging
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hi, check this first: http://corona-renderer.com/wiki/performance_debugging
Thank you, Keymaster. It is now established