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View Full Version : I'm going to shift using Vray .. But ..


asulaiti
02-21-2010, 06:46 AM
Ok C4D-Vray users ..
I'd like to ask you, I'm thinking to shift to use Vray rendering, but there is some questions for you.

In fact, I'm a user that always say with Cinema 4D, no need any external render plugin,
..... (in the past indeed :p ) ......
because the C4D AR engine is awesome and amazing, you can get high quality image rendering with good speed processing,
As you know, C4D is the one of the fastest rendering engine in the market.

In the past, I didn't decide to use any other rendering engine, that time there is no Vray for C4D, it was only Final Render & Maxwell as my information,
and the main reason was they are slow engine, if I not said very slow !! and I like to use C4D because it's give me fast rendering.

In same time, I'm usually not always used GI rendering on my most projects, some time I don't see my self good in that way.

Now, I see there is no escaping from using the high quality render engine, and definitely the VeryforC4D it's a popular rendering engine now,
I decide to buy one, specially it's has good rendering speed, but there are some questions need answer.

First,
I know when someone decide to render any project with Vray, he have to use Vray Material, Texture & Lights,
the question is what do you do when you thinking to make animation also? Animation using default C4D rendering engine?

Or do you use Vray too for that?

If I do not have time to prepare new materials & textures again, specially if the project is big .. where is the exit ?
Is there a way to render the animation using C4D default rendering engine with everything prepared before to use it with Vray ?
As you know, in animations you need some speed for the render ..

Secondly,
Is using Vray means better just to get excellent quality in easy way?
Or on other way, does the Vray is a cause for people can not get good quality as they want when they using AR3?

Finally,
And this question for the C4D AR3 experts user, do you think there is a real differents between AR3 & Vray in two points .. Quality and Speeding Rendering?

Thanks in Advance for every one sharing his opinion.


P.S, Please accept my apologize for my english level. :sad:

ThePriest
02-21-2010, 07:08 AM
Vray will for the most part, convert your project textures/materials very well over to Vray materials.
If you decide to switch back (is that what you were asking), you should keep a separate project folder, because there is no going back.

They're both undoubtedly good render engines, it's down to the individual artist, but at the same time, Vray is geared towards the archviz guys and it does excel at it.

So you can fight a little with Cinema to get beautiful results and have a trouble free time with its simple settings. The tools are there for VRay quality renders, but you'll have to make good lighting rigs to get the best out of it.

Or you can easily get results with VRay, but you'll occasionally fight with its settings to strike a balance between perfection and render time. That's an easy fight to win with stills, but animation is different game. Not to put you off though, it's just a matter of understanding the workflow.

asulaiti
02-21-2010, 10:41 AM
Thanks ThePriest,
Vray will for the most part, convert your project textures/materials very well over to Vray materials.
As I know, it's not a good converter tool yet, some time doesn't convert well as I read here in some topics, and as I tried it long time ago when I install the Vray demo version 1.02 I think ! I' can't remember the version indeed..

Also some member here advice to not use it, and build the materials again from the zero ..
Unless the VrayforC4D team already upgrade that tool and it's working fine now, so that will be really great !!
and now I feel comfortable after read your post, and the Vray now come closer to my mind.

mazab
02-21-2010, 11:34 AM
I don't think it's a good idea to convert stuff to vray from cinema materials. VRay materials work quite different from VRay ones and you'll only get really good results if you dive into VRay and use the settings it offers. You won't get any really great materials from converted AR ones. Same for light rights and rendersettings. You need to learn VRay and use its tool (which are a bit different from AR's) to get cool stuff out of it. Otherwise I think it's better to just go with AR.

ThePriest
02-22-2010, 04:18 AM
You won't get any really great materials from converted AR ones.

I don't agree at all. There are times you need to tweak for results, but generally the converter is problem free.

ediris
02-22-2010, 04:41 AM
I don't think it's a good idea to convert stuff to vray from cinema materials. VRay materials work quite different from VRay ones and you'll only get really good results if you dive into VRay and use the settings it offers. You won't get any really great materials from converted AR ones. Same for light rights and rendersettings. You need to learn VRay and use its tool (which are a bit different from AR's) to get cool stuff out of it. Otherwise I think it's better to just go with AR.
I am a bit confused as i was facing speed vs render times but more so the fact that light and the preview editor works a bit off you dont really have an accurate prev of what you are doing in Vray you must render to see your results.
Am i missing something?
Thanks,Ed

mazab
02-22-2010, 07:44 AM
Do you mean the preview of the materials or the 3d editor view? The material preview sphere just sits there in a standard environment which is nice but as most materials depend on the actual scene and the stuff there is to reflect the material preview won't give you an exact representation of how your material looks in your scene with your reflections and your light.

GouraudShading in the editor will also not give you something that resembles the rendering of Vray as especially when you use the PhysicalCam of Vray you need pretty boosted lights which results in an extremely overlit scene in your editor.I'm afraid there's no way around test rending when you setup your lights and scene.

ediris
02-22-2010, 11:38 AM
GouraudShading in the editor will also not give you something that resembles the rendering of Vray as especially when you use the PhysicalCam of Vray you need pretty boosted lights which results in an extremely overlit scene in your editor.I'm afraid there's no way around test rending when you setup your lights and scene.
Exactly this is why i haven't gotten VrayforC4D, so there is no way out of it, i understand with the physical camera and all but they should give you a fast preview ala Modo.
I guess i will keep using AR3(great render with a special look) the most important thing is that it gives me a very good sense of my light rig. Thanks for the reply.
How come nobody has mentioned this before? That is why i saw a tutorial on VrayforC4D were the guy was just working without any shading on his main world window.
Guess is all about practice and more practice but is not so convenient IMOP if you dont have a feedback of your light rig, or how illuminated is your scene , doesnt make sense to me. :)
Edgard

mazab
02-22-2010, 12:55 PM
You get a very fast - near realtime - preview when you activate Interactive Renderregion and set it to lowest quality. It's enough image quality to judge your scene. In addition to using GouraudShading only you'll also see full GI and all advanced effects.

Also if you set up your scene in AR you'll also have to do test renders. There's only so much the editor can show. So it's not really different from Vray. The only difference is that you'll get more sensible feedback on light intesities. But for all the rest (like placing reflection dummies or setting up GI) you'll also need to test render.

ediris
02-22-2010, 01:26 PM
Thanks Matthias, i will try that.Playing with the DEMO version here.
Edgard

lewisrowe
02-23-2010, 09:54 PM
You get a very fast - near realtime - preview when you activate Interactive Renderregion and set it to lowest quality. It's enough image quality to judge your scene.

..This is true, and you get previews even faster by switching antialiasing off and setting GI quality to low. Used with a low quality render region you can often get preview updates in just 5 secs!. This goes for both AR and Vray.

Its good to make some preview render setting:
Vray: Antialiasing= type; 'Fixed', and 'Filter on' un-ticked, and indirect illumination tab=very low quality.
AR: antialiasing=none, Global illumination = IR with all the various presets set to low/minimal and oversampling none, options=bluriness; off
(any other preview speed tips people?)

Its surprising how fast it can be. But I am envious of modos live render preview.

asulaiti
02-24-2010, 10:08 PM
Thanks to all post here ..

Still I'm not sure if I get the final answer for the material converting to Vray Mat. :curious:

I tested that before and it wasn't work fine with me, but I can't agree my self
because I do not have enough idea about using Vray .. :sad:

Regarding the Vray it self, it's perfect render engen, but I have to say, I re-thinking again
about buying it, I'm not sure but there is a reason, and I will tell the reason with my next topic soon.

Regarding of the fast preview of my scene using Interactive Render Region,
I always using this option, and thanks for the tips about reduce the image quality
and turning antialiasing off to get the preview faster as I can, it's really useful,
how I didn't think about it ..

But .. still some time the IRR it's not useful with havy scene !! unless if you have C4D R11.5 ..
with C4D latest version active the Render Region on Render Setting, and copy the
dimensions of the IRR board, it's one click to copy it :thumbsup: ..
then you can render just a part of the scene multi time, and compare the result with
every setting changing using the new Picture View features in C4D R11.5,
it's very useful when you have a big and heavy scene, you will not get fast rendering ..
I know, but anyway, with reducing the quality of rendering on the Render Setting,
sure you will save time, becuse you are going to render just a part of the scene viewing.

Thanks again to all. :)

mazab
02-25-2010, 07:46 AM
When you have heavy scenes and want to do shading / lighting it's always a good idea (both in Vray and AR) to concentrate on parts of the scene and not have the whole big thing in your scene. Do shading of objects in new scenes where you only copy the object and the important bits of your environment. Also when lighting big scenes you can hide most objects in it and only keep big landmark objects to set up your baselight and then go from there. Shading and lighting is a lot about keeping stuff simple and fast. Otherwise you'll spend the bigger part of your day just waiting for stuff to render, which is not nice.

xdennisx
02-25-2010, 08:18 AM
Also a good thing for complex scenes is to throw out all textures first, setup the lighting with neutral grey materials and put the textures in afterwards. this way you are able to judge the lighting better and faster.

VC4D
02-26-2010, 06:16 PM
I am a bit confused as i was facing speed vs render times but more so the fact that light and the preview editor works a bit off you dont really have an accurate prev of what you are doing in Vray you must render to see your results.
Am i missing something?
Thanks,Ed

http://www.vimeo.com/8586237

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