Simple scene for Vray Training is here

[Franz78]

Hi to all,
you can download here a litle scene for you training.
the scene is complete of material, Sun and Sky setup, Phy Cam and GI.

www.sertecoitalia.it/areariservata/vray/startupfranz.zip

Best
Franz

[RenatoT]

Great setup Francesco :)

http://www.tarabella.it/C4D/VrayForC4d/sedieFRANZ.jpg

Cheers
Renato

[marshalartist]

Thanks Franz,
it looks great and renders beautifully.
is there any chance you can give a brief discription of what settings you changed in the Light Tag, Camera Tag and Render settings from the defualt and why. It would be a tremendous help. I can not believe you can get such a superb render from such a simple set up.

[maya69]

thank i donwload

phil

[Franz78]

Hi to all,
the setup is very simple but there are some important things to learn.
al illumination wase made by physun and Sky.
when you use th physical camera make shure to set the "intensity multiplier" to 1 and not move this, the explosure is totaly controlled by camera, Fstop, iso and SSpead.
make shure to use an exponential colormapping to balance brigth and dark area.
About GI:
The primary bounce are setted tu irradiance map, the only parameter modified to defalt is "max rate" from 0 to -1 this is a metod to make a litle bit less detailed GI solution with less render time.
look at secondary bounce, light cash, the subdivision can be seted fron 400 to 1500 to increase/decrase quality of gi make shure to set n° of pass with the same n° of core in your PC because evry pass is rendered in a single tread.

i hope is ok for you
Franz

[nycL45]

Thanks Franz. I will study it.

[noseman]

thanks a million Franz!

[Robert G]

This is realy great, now there is something to hold on to and study.

Thanks a million Franz, much appreciated.

Kind regards, Robert

[Franz78]

i am very happy to share example scene, stay tuned on this forum and on www.tools4d.eu for more content.

ciao
Franz

[akiefer]

Just a quick note...

This scene rendered in 33 seconds on an 8 core MacPro!

I hope to be learning soon how to create materials, control lights and camera's so that I can really create some great images with VRay.

Albert

http://www.sectora.net

[akiefer]

By the way...

I rendered a small animation with this scene moving the camera slowly to the red chai at the window. I saw some serious flickering of light and in one frame the walls suddenly disappeared!

Could the developers check this behaviour?

I'm working with C4D R10.111 Mac Os X 10.4.10

Albert
http://www.sectora.net

[Franz78]

hi akiefer,
for animation there are some specific tecnic, sorry but now i cant explane this i am a litle busy.

ciao
Franz

[Kokosing]

Have a look at this tut:

http://www.spot3d.com/vray/help/150R1/tutorials_imap2.htm


It looks like you do things quite differently for animation.

W

[akiefer]

Hi Franz,

When you say: make the n° of passes the same as the number of cores in your PC I am not quite sure what you mean... I have a 8 core but that should surely not mean only 8 passes right? Should it be a multiple of eight in case of an 8 core? 8, 16, 32, 64, 128, etc?

Albert
http://www.sectora.net


Hi to all,
the setup is very simple but there are some important things to learn.
al illumination wase made by physun and Sky.
when you use th physical camera make shure to set the "intensity multiplier" to 1 and not move this, the explosure is totaly controlled by camera, Fstop, iso and SSpead.
make shure to use an exponential colormapping to balance brigth and dark area.
About GI:
The primary bounce are setted tu irradiance map, the only parameter modified to defalt is "max rate" from 0 to -1 this is a metod to make a litle bit less detailed GI solution with less render time.
look at secondary bounce, light cash, the subdivision can be seted fron 400 to 1500 to increase/decrase quality of gi make shure to set n° of pass with the same n° of core in your PC because evry pass is rendered in a single tread.

i hope is ok for you
Franz

[belushy]

As i studied your settings

secondary ray bias is set to "0"
i don't know how the final version is set to but if things overlap should not 0,01 be used for that.

my only notice

i just was curious

belushy

[Stain777]

Thanks very much for the scene Franz, nice work. I tested it out at 1280x720 and got a render time of 1m 5s.

[Franz78]

hi Stain777,
Dont look the stamp on original image renato post, this image is not rendered on a 8core pc, you redertime is very good.

belushy-i used the default setting, but preaps you are right.


Best
Franz

[ernia]

This file is very much needed.

Thank you!

I am blown away by this renderer. Great job Vray team!

ernia

[RenatoT]

hi Stain777,
Dont look the stamp on original image renato post, this image is not rendered on a 8core pc, you redertime is very good.

belushy-i used the default setting, but preaps you are right.


Best
Franz

Yes :) Core Due 2.66 Ghz with Skype active (-15%)

Cheers
Renato

[BVD2000]

thanks....this's very great...!!! :D

[malindis]

Great setup Francesco :)

http://www.tarabella.it/C4D/VrayForC4d/sedieFRANZ.jpg

Cheers
Renato

I have tried about everything, but I never have a clean image like yours...

It's like if my AA setting are not working... the first chair is never as clean as yours :(

What are your parameters ......

Thanks for your help.

Regards

[RenatoT]

Hi Malindis,

this is a 1920x1080 rendering downscaled.

Can you post your rendering ?

Cheers
Renato

[nutriman]

Hi everyone,
just got my copy! :-)

Here's a cornell Box for you to try out
(provided settings are not very good...)


http://www.realiez.de/3dpix/cornellbox.jpg

LINK:
http://www.realiez.de/szenen/cornellbox_vray.c4d

Have fun rendering!!

[nycL45]

Thanks nutrimen. I will play with it and learn.

[simonw]

I have tried about everything, but I never have a clean image like yours...

one thing to remember is that VRAY is using AA on the full dynamic range of the scene so in areas that are pushed up above 1.0 the AA is no longer apparent (it is there but you would only see it if you save as a 32bit float format like .hdr and reduce the exposure).

if you don't like this effect you can turn on sub-pixel mapping and clamp output in the colour mapping section of the bridge settings. this will give you a less accurate output but in someways it looks more pleasing to the eye as it removes the jaggies in very bright areas of the image.

cheers, simon w.

[malindis]

Hi Malindis,

this is a 1920x1080 rendering downscaled.

Can you post your rendering ?

Cheers
Renato

Hi Renato,

Here is mine...

Regards.

http://idisk.mac.com/malindis/Public/test.jpg

[RenatoT]

Hello all,

i'm sure that Franz78 can help you to fix these little defects :)

Cheers
Renato

[Franz78]

hi malindis,
preaps your render is in low res , (640x480)
my AA settings is good for more pixels images if you want a good AA in a smal images you should incrase the subdivision of AA, and make you shure to have only 3 subdivision difference from the low value to the high value, like 1-4 or 3-6.


Best
Franz

[nutriman]

Havin the same trouble with the vertical lines on the image.
even with fixed aa of 4 it looks jaggy.
any further suggestions?

[simonw]

any further suggestions?

am i invisible here?

cheers, simon w.

p.s. as i mentioned further up in the thread the main problem with the scene is that there are a lot of values pushed above 1.0 because of how bright the sun is so the AA is being swamped by the high dynamic range of the image.

you just need to turn on sub-pixel mapping and clamp output to make sure VRAY works as you expect (even though this is not strictly accurate).

[stefan]

yes, thanks Simon,
as he says for very dynamic images turn that on,

cheers
stefan

[nutriman]

Thanks simon, sorry I didn't realize you posted a solution.
I'll give that a try.

[simonw]

the AA certainly needs a lot of experimenting if you are used to the way that cinema works - in VRAY all the sampling is tied together whereas in cinema you have separate sampling for textures and the image.

the adaptive DMC sampling seems most like cinema where you can set a min and max subdivision (just like best 1x1 4x4) and then control it using a colour threshold.

the next test for me will be trying out the universal settings that vlado recommends in the Max VRAY manual - in general i like the idea of controlling everything through just a couple of quality controls even if it takes longer to render.

they can be found here: http://www.spot3d.com/vray/help/150R1/

cheers, simon w.

p.s. the Max manual also has many examples on how the samplers works with textures so this is a good read too: http://www.spot3d.com/vray/help/150R1/examples_image_sampler.htm

once i had tried out these tests it was a lot clearer how VRAY works.

[malindis]

any further suggestions?
you just need to turn on sub-pixel mapping and clamp output to make sure VRAY works as you expect (even though this is not strictly accurate).

Hello simonw...

I have tried this but it doesn't work... I still don't have a clean image

Will try to increase the AA subdivison

[stefan]

i have a clean image in one minute, what gi settings do you use?

cheers
stefan

[nutriman]

Folks, don't forget about the kitchenscene from cgtalks renderengine
comparison!
It's a great scene to experiment with
and needs other tweaks than the provided scene with the chairs. :wink:

http://forums.cgsociety.org/showpost.php?p=2624488&postcount=1

http://www.3dfluff.com/files/fraktal_kitchen.jpg

[Tong]

Vray version by DJ AntOn.

http://rapidshare.com/files/58408840/kithenVRAY.rar.html

http://rq.foto.radikal.ru/0709/c5/eeed06851a2c.jpg

[Laurent]

woops! where did the contrast go?

[Tong]

It`s just a test, i don`t no, did he more tests, to make more contrast image.


Don`t think that it`s a image, it`s betaimage ;-)

[malindis]

i have a clean image in one minute, what gi settings do you use?

cheers
stefan

I use the one provided in the file... I don't touch anything :-(

In fact if I generate an image with size 1920x1080 i have the same scene quality as Renato... But when i'm trying to render the scene in 640x480 I can't find the right AA setting to have a clean image...

Thanks very much for you help.

[sunmade]

Thank you so very much for the scene!

I'm so impressed by the speed.

I'm on an Quad 3Ghz MacPro, and this just rendered like butter fullscreen 23" screen in 1min50...

Stefan Renato and the other gods, you have done a damn good job on this beast!!

kudos x 10000