Stadium....Used VRAY....but I need help bad...

[Dave Bond]

This is a Stadium that I modeled in Microstation V8 (dwgmode) and linked to VIZ. I am using VRAY as my rendering engine and really need some serious help with the lighting and such.

I don't have any idea how to make a good shader for all the glass that is in the box seating (there is tons of it btw) I also need to figure out how to make split-faced gray concrete block as alot of the exterior walls are made of this. I have two lights in the scene, one to get the default lighting turned off in VIZ and one spot to act as my main key light which SHOULD be casting hard, dark shadows....and yes I am using GI with irradiance mapping.

 

 

Thanks for the help!

 

Dave

 

[ December 01, 2003, 11:38 AM: Message edited by: nisus ]

[Ricardo Eloy]

Well, Dave, it's a good start, so here are a few things I think might be helpful:

First of, you don't have to have one light to turn the default lights off. If you go to Global Switches (under VRay's setup dialog), you'll find an option to turn them off. Also, why not using a free direct as the sun? Works better than the spot (IMHO). And don't forget to use VRay Shadows!

For the glass, try using a VRay Material with reflections and refractions at 100%, dark green for diffuse color and fresnell reflections on. For the concrete, you may use a default material to achieve the effect you want, with bumps and all.

For more help, I suggest you upload a screenshot of your VRay Settings, so we can see what else to do.

[]

Rick

 

[ December 01, 2003, 11:48 AM: Message edited by: Rick Eloy ]

[Dave Bond]

Thanks for the quick response Rick!

O.k. - I took some screenshots of my settings and

I quickly threw in a free direct...not knowing what all the settings should be of course.

http://www.cgarchitect.com/forum/filepush.asp?file=pic1_1.jpg

 

http://www.cgarchitect.com/forum/filepush.asp?file=pic2.jpg

[Dave Bond]

more settings:

 

http://www.cgarchitect.com/forum/filepush.asp?file=pic3.jpg

 

http://www.cgarchitect.com/forum/filepush.asp?file=pic4_1.jpg

[Dave Bond]

again:

 

http://www.cgarchitect.com/forum/filepush.asp?file=pic5.jpg

 

http://www.cgarchitect.com/forum/filepush.asp?file=pic6.jpg

[Dave Bond]

and lastly:

 

http://www.cgarchitect.com/forum/filepush.asp?file=pic7.jpg

 

http://www.cgarchitect.com/forum/filepush.asp?file=pic8.jpg

[Ricardo Eloy]

Well, that's what I call a complete answer!

I can't tell anything really wrong with your settings. I would just say that if I were you, I'd start using the default settings and mess with them little by little. For instance, use the GI presets to start, such as "low", for example.

For the environment, I wouldn't use 10 for multiplier (nor use a JPEG for tinting). Keep that for HDRI images. Keep your multiplier between 0,5 and 3 (that's what I found best for my scenes).

Another thing: in the Global Switches section, turn on "lights" and "shadows". That's why you weren't getting any shadows casted by your sun.

For the glass, instead of a standard material, use VRayMtl, with the settings I mentioned earlier. And don't forget to exclude them from the shadows casted by the lights and hide them when you start the GI calcs (that will speed it up!).

I guess that's it. Make sure to post an update, alright?

[]

Rick