Chaos Corona Forum
General Category => Gallery => Topic started by: Esperamus on 2013-07-31, 09:57:58
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Hi!
I just want to start with this kitchen scene that was rendered with VRay before.
It was nearly not possible to get a flickerfree sequence rendered with acceptable rendertimes because of the complete indirect lighting.
Than the scene was converted and overworked...
CORORNA delivered the pictures (1760x990px) in around 80min for each frame on dual HEXAcores 2,4GHz machines.
While playing with settings and shaders I did not recognize any 3dsmax crashes or other instability. That convinced me to keep an eye on it in future.
In my opinion the light just looks great and the rendertime is really good.
Hopefully CORONA survived in this ocean of render solutions...
h.264 sequence: http://www.sawade-meyer.com/xtra/corona/KITCHEN_classicTIME_v20e_csm.mp4
(http://www.sawade-meyer.com/xtra/corona/KITCHEN_classicTIME_fr001_v20e.JPG)
Critics are welcome.... sometimes ;-)
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I see some flickering in the animation (which is pretty unusual with corona). You should pre-render and save the HDCache, that will fix any flickering issues :)
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Yes, there ist still a little bit flickering. In my opinion not that much that it hurts.
The precalc HDcache suggestion is not the way I want to go because it should work also with scenes that do not only have a camera flight and I hate precalc.
And without tweaking the HDsolver a lot it is flickering like hell - so I can not understand that it should be unusual with corona...
This scene is very different to direct light situation.
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It's in a kind "unusual" since most of the people here are doing archviz stuff (and I've not seen many animations here) without any moving parts (like in your video). Furthermore, Corona does not (anymore) have any biased primary engine, so it's kind of seldom to see direct flickering (like irr. map in vray). Your flickering is obviously coming from HDCache flickering which is easily solvable with prerendering - yes i know you don't like it... ;)
Funfact by the way: I'm using a Lightcache - brute force method (prerendered LC) with Vray here for ~80 shots of a feature film which is working nearly perfect with animated objects :P . LC is prerenderd without characters but then later used as secondaries for the brute force Character passes. Sure, there are some little drawbacks but it's a very economic solution.
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I see some flickering in the animation (which is pretty unusual with corona). You should pre-render and save the HDCache, that will fix any flickering issues :)
How does one do this pre render, do you have steps i can follow?
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CORORNA delivered the pictures (1760x990px) in around 80min on dual HEXAcores 2,4GHz machines.
WOW! What was the render time per frame and what settings did you use?
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I see some flickering in the animation (which is pretty unusual with corona). You should pre-render and save the HDCache, that will fix any flickering issues :)
How does one do this pre render, do you have steps i can follow?
You only have to render 1 frame with "save sec. GI" checkbox in the Global illumination settings turned on. After that uncheck the save and check the load checkbox and render your animation ;) Unless you're really doing long wide flythrough animations 1 frame will work (since the HDCache bounces will reach most of the space in short to medium distances)
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So there is no need to render an entire animation prepass like light cache in vray?
does that mean my Gi solution from frame 1 will still be relevant when i reach 200 even though im in a different part of the house?
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I'm sorry for spamming in this thread (this tech info should not belong here, but it's too late anyways).
So there is no need to render an entire animation prepass like light cache in vray?
does that mean my Gi solution from frame 1 will still be relevant when i reach 200 even though im in a different part of the house?
The problem is... you have no choice (yet) you can only use 1 frame atm. Keymaster will have to add a more sophisticated method yet. The thing is: It will work if you don't move too far away or around too many corners. The HdCache / Lightcache works in a way that it bounces in the scene and will write enough information for most of the areas which can be reached by 1 or 2 bounces (Keymaster will have to clarify that a bit more i guess). So if you render the HDCache in the basement and animate your camera to the 10th floor it surely will not work - that's where we need a better solution yet.
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Sorry, I add this small "each frame" info.
The 80min are per frame.
Our latest dual hexas just need around 50 min.
This was a try and I know that it would be much easier to use a precalc...
But with these settings I do not need a precalc and it wouldnot matter if objects and lights move or change...
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in fact, the bookshelf on the lft still has a flick in the bottom. so, smthng is wrong here.
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I would like to convert a caterpillar anim with forest pack distributed plants to CORONA.
Have I got to use R4 of FP?
My older 3.8 seems not to work...
The reference is the nearly finished VRay scene
(http://www.sawade-meyer.com/xtra/corona/Raupe_NIMMERSATT_v06_fr0030_VRay.jpg)
After playing around with CORONA...
(http://www.sawade-meyer.com/xtra/corona/Raupe_NIMMERSATT_v06_fr0075_CORONA.jpg)
A sequence rendering over night was done with around 40 min per frame in nearly fullHD res.
But of course it is still far away from my VRay scene setup. Just WIP...
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What is R4?
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release 4 of ForestPack...
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release 4 of ForestPack...
Oh, yes, right... sorry...
You should always use most recent version of FP or Multiscatter. They should work :) FP works only as a scatterer though.
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It sounds like Multiscatter is the better technical choice for CORONA... ?
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After updating to 2014 and FP4 it´s going on...
(http://www.sawade-meyer.com/xtra/corona/Raupe_NIMMERSATT_v07_fr0000_CORONA.jpg)
Animation will arrive next days.
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Nice, seems like people have the leaf shaders figured out lately ;). But the postproduction blur is... weird
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postproduction blur is... weird
Thanks.
Yes... will be adjusted when the sequence is rendered completly.
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I'm following this thread, it seems we gonna have another mindblowing render soon, keep going !
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@keymaster/anyone who understands - ive seen many instances where artists like to play with DOF in animations.....i tried animating DOF and bokeh in corona but it didn't work. Is that feature possible within corona yet? or how else can one go about it with corona without settling for post production trickery in video editing software's?
*Also, is the save and load sec.GI feature working with v5 bcos my max keeps crashing the moment i touch this option. is the fault from max or my corona version is corrupted?
Thanks.
Nice work Chris!
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Looks like the only parameter of DOF you can animate in current version is camera target's distance. We have to wait for a dedicated camera object with more controls, which will be awesome. :)
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For some reason I am unable to get 3dsmax to animate the controls in render settings dialog :(. Some renderers can do it, others cannot. Either way, dedicated camera will probably solve the problem ;)
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Yes Ondra, dedicated camera is a must! You have to ad on your to do list ;-)
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YES! dedicated camera could even further simplify the render setting dialog box, hence taking off the dof/M blur dbox, some environmental settings, post production settings; then include atmospheric settings, vignetting, just to mention a few could be under the camera setup, making the C.camera a must use tool ;D ( however, pls try not to make it as elaborate as the vray cameras dbox)..... i wish you could make this happen in a week though cos i really need to use this feature now :(
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I know it was already discussed 1000 times but another, probably even more important feature than camera is real units for light intensity to have realistic light bounces. This is somehow connected, lights in real units, camera's shutter speed and aperture. This would be perfect.
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Not necessarily mindblowing...
All parts are "recycling stuff" and the animation could be a bit better and longer... I know.
I am totally convinced by CORONA.
At the moment I really would like to leave VRay behind.
CORONA delivers just perfect light, it is very fast and it is possible to use it after a ultra short learning period.
For animation counts a flickerfree setup and this is possbile without crappy pre cache ;-)
I LIKE!
I place my order now! :-)
Actual result with only a little bit standard post (cc, post DOF, vignetting):
(http://www.sawade-meyer.com/xtra/corona/Raupe_NIMMERSATT_v07_fr0070_CORONA.jpg)
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latest ANIMATION calc can be found here:
http://www.sawade-meyer.com/xtra/corona/Raupe_NIMMERSATT_v07h_CORONA.mp4 (http://www.sawade-meyer.com/xtra/corona/Raupe_NIMMERSATT_v07h_CORONA.mp4)
Rendertime per frame around 30min on dual XEONs 4core 2,4GHz (4 year old machines), resolution 1760x990.
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Man this render is very realistic, speccially the vegetation, what is giving away the CG is the size of the catterpillar, it lloks like the size of a dog to me, I believe this is intentional, anyways as far as there is no debries animation beneth the animal as it moves, and the way it lifts up very fast, makes the shot a lot CG like, but the render is very nice in my opinion.
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Esperamus top work, (but I too think those catepillars are oddly large :- D ),
mind asking, what range of translucency do you stay in your material for these leaves ?
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Yes, you are right... the catterpillar is a little MONSTER.
Here the settings of the foreground leafs:
(http://www.sawade-meyer.com/xtra/corona/Nimmersatt-rndr-settings.gif)
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Wow, I really like the surroundings (ground and plants) I'm not completely convinced by the catterpliiar though, it seems a bit flat/dull. I think the colours can be made a bit more vivid. check these:
http://monarchsinthedesert.blogspot.be/2010/04/monarch-caterpillars-in-phoenix.html
http://fineartamerica.com/featured/monarch-caterpillar-nina-stavlund.html
but otherwise very good.
And yeah, could you spill the beans on how you set up the leave-shaders?
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This time I just played around with displacement...
(http://www.sawade-meyer.com/xtra/corona/CORONA_displacement_orgy_test_mBlur.png)
Video is blown up a bit with some small cc in AFX.
The render time is very nice for that orgy of displacement in my opionion.
Here is the video...
http://www.sawade-meyer.com/xtra/corona/CORONA_displacement_orgy_test_mBlur.mp4
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The vegetation is really realistic. Did you use the same settings for the grass?
Many thanks and great work.
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Just some variations...
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Thanks for your reply.
I am finding difficult creating a vegetation material using just textures and not materials for each side of the surface.
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Inspiring thing. Waht method you choose? Pt+PT bucket? How much passes to clear?
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For the caterpillar I used PT+HDC, for the displacement test it was PT+PT.
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tnank you.
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great grass!