Blown highlighted areas...

[biglolly]

Vray has always created this problem for me. Pic is attached to demonstrate. I had to hide all the shrubs and trees to render it (explained in another post).



I can't figure out why it chooses to do this with these faces. They look awful being so bright. Is it because there is light bouncing off the face at 90 degrees to it?

Anyone have any clue as to how to reduce this "blown out" look or eliminate it altogether?

[re:FORM]

That's the light from the sun collecting in the corner. Try using a vray material wrapper on the wall texture and reducing the GI values.

[dlparisi]

Another option - select the walls and go into the Vray Object Properties, reduce the GI multiplier as needed.

You could also change your color mapping to something else - exponential or HSV.

[biglolly]

I understand reducing the GI values, but what do you mean by vray material wrapper? Just use a vray material?

[biglolly]

Am trying these things out now...thanks guys.

[joconnell]

The vray material wrapper lets you take any material in your scene and then use a set of spinners to control the amount of GI light the material receives and bounces out - It's the same as right clicking on an object and using the vray properties to change the gi send and receive values. It means you can tone down the amount of light that your wall is bouncing and make it burn out less. Alternatively turn down the value of the yellow colour you're using to something slightly less bright.

[jow]

ive had the same thing before,dropping the secondary bounces from 1.0 to .8/.9 should fix it

[biglolly]

I tried the material wrapper thing and brought it down to 0.85 and it appears to have resolved it, but I suppose there are several ways of doing it.

Thanks folks. Now if only my scene would render. Trying to use vray proxy objects for my trees (scene has 2million polys) but it's not happening...yet.

It just crashes out. Have a bit more experimenting to do.

[Da_elf]

strange. every time i see that car it never has the right perspective on it

[biglolly]

It is a bit of an oddly shaped car though, even in reality

[Da_elf]

isnt it a nissan z350? ive got one parked right next door. its not that weird a shape. it almost looks like that photo was taken with a zoom lens which tends to compress things

[biglolly]

Hmm yes you're right about zoom lenses compressing things, but that was rendered with a 25mm lens, which is semi-wide I think.

[joconnell]

Try to turn off opacity maps on leaves if you have them and use vray proxy objects. Turn on dynamic memory and you should be fine - I'm rendering around 75 million polys here using that.

[Da_elf]

25 is kinda wide. but the photo of the car your using doesnt seem to match, you should just use a 3d car

[biglolly]

lol it is a 3d car it needs vray maps i think.