bleeed!!

[blade911]

hi everyone

 

im relatively new to vray n was checking it out a lot

well as u can see from my image the grass seems to have bled a lot onto the building

 

cud neone tell me hot to prevent this? don bother abt the model.. its sad!

 

thanks in advance

[MegaPixel]

Try adjusting the "Saturation" down below 1.0 in the GI parameters rollout. You could also adjust the properties of the grass object itself to generate less then 1.0 GI. Also, very high light multipliers can weigh heavily on bleed. Better grab a box of band-aids and experiment for a while.

[UTI]

Try adjusting the "Saturation" down below 1.0 in the GI parameters rollout. You could also adjust the properties of the grass object itself to generate less then 1.0 GI. Also, very high light multipliers can weigh heavily on bleed. Better grab a box of band-aids and experiment for a while.

Wt about using advanced light override material?? i think it may do the trick if used over grass.

[MegaPixel]

I don't believe the Advanced Overide Material was designed to be used with Vray UTI. I suppose it's worth a shot but I think I'm doubtful. A combination of the 3 suggestions mentioned earlier is still a better bet.

[blade911]

thanks all

 

reducing the saturation value seems to be working. never new it was tat simple!

 

cheers

[Christopher Nichols]

thanks all

 

reducing the saturation value seems to be working. never new it was tat simple!

 

cheers

 

Simple yet so wrong (in real world lighting)... working in the proper linear color space will naturally reduce the saturation levels of your darks.

[Wendelld]

Cheat, try applying a grey material to the grass object before doing the irradiance solution, then save your solution. and then apply the grass material to the grass object and render again with the saved solution, that way the grey material will be baked into the building and not the grass material. Please correct me if I'm wrong.

[MegaPixel]

Christopher Nichols Quote:

 

Simple yet so wrong (in real world lighting)... working in the proper linear color space will naturally reduce the saturation levels of your darks.

 

I think there are too many half baked tutorials on LWF these days and I for one am still very confused. It would be great if one all powerful all knowing resource decided to lay down the law and write a kind of LWF for Dummies article. Chris... You're all knowing and all powerful arn't you? Do any of your DVD titles explain a particular LWF workflow by chance?

[Christopher Nichols]

\Chris... You're all knowing and all powerful arn't you? Do any of your DVD titles explain a particular LWF workflow by chance?

 

To anwer your questions... not really for the first one, and yes for the second one. Some people got it when they watched it, some still struggeled. I will tell you this, that I find that it is a very hard thing to teach (coming form a teaching background). But it is something that will "click" eventually. For me, I got it, but didn't understand why it was an issue (in the real non-CG world), until a friend of mine Dan Lemmon, who is a supervisor at Weta, explained it to me relative to photography. That is when it clicked for me. So I used that method on my DVD.

 

Vray does a great job of allowing you to to render in full float and saving your data linearly. This allows for the best and most accurate flexibility in post.

[wine3d]

nice pic. it rendered by VRAY?