archkre Posted June 28, 2006 Share Posted June 28, 2006 Is there any way to recreate the features Ozone and turbidity in Vray as they contribute to give an extremely realistic exterior illumination like in Maxwell? Thanks Link to comment Share on other sites More sharing options...
jow Posted June 28, 2006 Share Posted June 28, 2006 Soon my friend, very soon... Vray 1.5 is to have aSun/sky system built in like the maxwell system. http://www.vray.info/features/vray1.5_preview/ Link to comment Share on other sites More sharing options...
archkre Posted June 28, 2006 Author Share Posted June 28, 2006 They say: Sun and sky system The sun and sky system is a combination of an environment texure map (VRaySky) and a special light type (VRaySun). Both of them work together for creating a procedural environment that can be used for quick and reallistic lighting setup of daylight scenes. Quick setup of exterior daylight scenes; Sun can be placed anywhere in the scene; Blurry shadows for the sun light; Sky environment map and sun color are analytically computed based on the sun position. They don't mention Ozone or Turbidity! Link to comment Share on other sites More sharing options...
Christopher Nichols Posted June 28, 2006 Share Posted June 28, 2006 Yes... they are included... I can say this as it was shown at Siggraph last year. Link to comment Share on other sites More sharing options...
Ricardo Eloy Posted June 28, 2006 Share Posted June 28, 2006 Sorry for the complete ignorance on this, but... what are Ozone and Turbidity? Didn't get to play with Maxwell (I know it has these), so I'm not familiar with the concept... Link to comment Share on other sites More sharing options...
archkre Posted June 28, 2006 Author Share Posted June 28, 2006 Sorry for the complete ignorance on this, but... what are Ozone and Turbidity? Didn't get to play with Maxwell (I know it has these), so I'm not familiar with the concept... They are components of the atmosphere that give that realistic look in Maxwell! And what can you say about the rendering times with these new features Mr. Chistopher? Link to comment Share on other sites More sharing options...
Christopher Nichols Posted June 28, 2006 Share Posted June 28, 2006 They are components of the atmosphere that give that realistic look in Maxwell! And what can you say about the rendering times with these new features Mr. Chistopher? Someone did this in Maxwell and it took 60 min I did a test in Vray and did this image which is not great but along the same lines (only for testing)... rendering time was 1 min... on my slow laptop: So you be the judge if you think it is fast. Link to comment Share on other sites More sharing options...
Ricardo Eloy Posted June 28, 2006 Share Posted June 28, 2006 Interesting, Chris... so is it going to be like "turn it on, tell me where you are and what time it is and I'll do the rest" kind of feature (like they said M~R would be)? I don't think Vlado would go for that approach. Link to comment Share on other sites More sharing options...
archkre Posted June 28, 2006 Author Share Posted June 28, 2006 Someone did this in Maxwell and it took 60 min I did a test in Vray and did this image which is not great but along the same lines (only for testing)... rendering time was 1 min... on my slow laptop: So you be the judge if you think it is fast. Wow! that was quick , but the results are not equivalent! Opening both @ thev same time , it is very noticeable! Link to comment Share on other sites More sharing options...
Christopher Nichols Posted June 29, 2006 Share Posted June 29, 2006 Wow! that was quick , but the results are not equivalent! Opening both @ thev same time , it is very noticeable! Of course not... I was not tried to to do the exact same thing. Just testing it out. Sun and sky systems are very sensative to the angle of the sky... I just ball parked mine in there. The maxwell has a lot of artifacts in the sense that it has a lot of noise and the light does not bounce enough. And the Vray one that I did is lacking some detail from over sampling and the shader on the teapot is different. Link to comment Share on other sites More sharing options...
Christopher Nichols Posted June 29, 2006 Share Posted June 29, 2006 Interesting, Chris... so is it going to be like "turn it on, tell me where you are and what time it is and I'll do the rest" kind of feature (like they said M~R would be)? I don't think Vlado would go for that approach. Maxwell did not come up with the sun/sky system. It was a paper at Siggraph (I think it was at Siggraph). Chaos, like the Next Limit guys, simply added it as a feature. It is just something extra they added. IMHO it is the least impressive of the new features in the new Vray. It is fun to play with and a good tool to test things out... but not somethign I thing serious cg artists shoudl take too seriously. Here is what I think about Sun/Sky systems. You will see a LOT of rendering using it very soon. Most people will simply use it and nothing else... and guess what... all their renderings will look like everyone elses. Those system have very little to do with the real world. You can spot a Maxwell rendering using it from a mile away... and soon the same will be true with a Vray one.... and a finalRender one. That same orange light and blue fill. Basically it will be the choice of amateur cg artists that have no idea how to properly light a scene and use it. Remember when these rendering engines first came out and everyones renderings looked like overcast skys? It will be the same thing. True outdoor lighting has a lot more light play than the sun/sky system has to offer. For one there are no clouds in those systems. Second, there is no detail on the horizon like mountains and trees. IBL is the way of the future my friends. Start collecting HDRI, and make sure they are HIGH quality. Link to comment Share on other sites More sharing options...
jow Posted June 29, 2006 Share Posted June 29, 2006 Totally agree with you... Link to comment Share on other sites More sharing options...
kunstraum.tv Posted June 29, 2006 Share Posted June 29, 2006 yes, i agree. to play with the vray sun system is nice for a few minutes. and for fast shots maybe also an option. but as christopher said, especially for exterior you need more then just the sky and sun. hdri is still our favourit to start an exterior scene. Link to comment Share on other sites More sharing options...
pipjor Posted June 29, 2006 Share Posted June 29, 2006 chris, when I've used HDRI lighting in the past there are no cast shadows and everything looks kinda boring, check out doschs hi res to see what i mean http://www.doschdesign.com/e_product/indexsample.php?id=116 what is your work flow when using HDRI?? do you also use a dir light or more lights along with HDRI?? to cast shadows.. thanks for your time.. Link to comment Share on other sites More sharing options...
archkre Posted June 29, 2006 Author Share Posted June 29, 2006 chris, when I've used HDRI lighting in the past there are no cast shadows and everything looks kinda boring, check out doschs hi res to see what i mean http://www.doschdesign.com/e_product/indexsample.php?id=116 what is your work flow when using HDRI?? do you also use a dir light or more lights along with HDRI?? to cast shadows.. thanks for your time.. Watch Nichol's Gnomon Vray exterior/Interior illumination series and you'll find the answer! Link to comment Share on other sites More sharing options...
archkre Posted June 29, 2006 Author Share Posted June 29, 2006 Maxwell did not come up with the sun/sky system. It was a paper at Siggraph (I think it was at Siggraph). Chaos, like the Next Limit guys, simply added it as a feature. It is just something extra they added. IMHO it is the least impressive of the new features in the new Vray. It is fun to play with and a good tool to test things out... but not somethign I thing serious cg artists shoudl take too seriously. Here is what I think about Sun/Sky systems. You will see a LOT of rendering using it very soon. Most people will simply use it and nothing else... and guess what... all their renderings will look like everyone elses. Those system have very little to do with the real world. You can spot a Maxwell rendering using it from a mile away... and soon the same will be true with a Vray one.... and a finalRender one. That same orange light and blue fill. Basically it will be the choice of amateur cg artists that have no idea how to properly light a scene and use it. Remember when these rendering engines first came out and everyones renderings looked like overcast skys? It will be the same thing. True outdoor lighting has a lot more light play than the sun/sky system has to offer. For one there are no clouds in those systems. Second, there is no detail on the horizon like mountains and trees. IBL is the way of the future my friends. Start collecting HDRI, and make sure they are HIGH quality. I don't agree on this one Nichols! I don't care being a CG Artist, I am only an Architect using a tool to represent realistic works of Architecture. Yesterday I used Caran d'ache + Staedler+ etc. and tomorrow who knows what! I don't care if my renders look like anybody's else if they have enough quality, are quick and $$$$ rewarding, I don't mean to be original! They have to improve that daylight sistem adding fetures like HDRI , etc and alike. Link to comment Share on other sites More sharing options...
archkre Posted June 30, 2006 Author Share Posted June 30, 2006 How do you know if a HDRI or any other floating point image has enough quality to be used with succes? Is just the size of the file or what? Which ones can you recommend to use? Thanks a lot! Link to comment Share on other sites More sharing options...
jvlive Posted July 1, 2006 Share Posted July 1, 2006 IBL is the way of the future my friends. Start collecting HDRI, and make sure they are HIGH quality. forgive my ignorance... what is IBL? Link to comment Share on other sites More sharing options...
kippu Posted July 1, 2006 Share Posted July 1, 2006 IBL = image based lighting ... where you turn the image of the environment into your lighting source .. ( ok i had to ask my girl for that ) Link to comment Share on other sites More sharing options...
wjorden Posted December 9, 2009 Share Posted December 9, 2009 I am trying to get sunlight streaks like in a dusty cathedral where you can see the sunlight streaming in. I've been playing with the turbidity and intensity, but it's not showing up. Is this even possible in Vray for Sketchup? I have Vray 1.5 on Sketchup 7. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now