I can't increase the multiplier for Secondary Bounces over 1

[graphicsgriffin]

Hi everyone, I'm new to this forum.
I have 3ds max 5.0 and VRay Advanced 1.09.03g installed, in the render dialog, indirect illumination rollout, I just cannot increase the value for secondary bounces over 1.0. Anyone can help? And thanks in advance for anyone who tries to help.

[cocolas]

funny, that was one of my first questions when I first starting using vray....

anyway, you don't need to:

if you need more secondary/bounce light, you can bump up the "deepth" in the secondary illumination - that will give you more bouncing rays (caution - the more you increase that the longer the rendering times!!).....you can also increase the intensity of you max/vray light....make it a brighter color as well....

between those 3 options, secondary multiplier/number of deepth bouncing rays/ and light multiplier intensity+ color I usually get all the light I need..

paul.

[J_Bug]

This is a built in limit. Other areas you can use to increase light in the dark areas. One of them, is called Color mapping ( I think I recall that it's in the "g" build). Though this isn't specific to the Secondary bounce, you should still be able to get similar results. You can also increase the amount of your skylight through it's color value or the multiplier in Environment section of the render parameters. If you're using a bitmap you can increase the output RGB level.

--Jon

[cpnichols]

There are basically two reasons for this. A "reality" one and a technical one.

1- In reality, light cannot bounce and be more powerful then then its source.

2- If the multiplier is more then 1, you get strange artifacts of super bright dots where the light has multipied itself to out of coutrol number. For that reason they clamped it to be 1.

"But my scene is dark... what do I do?"

1 - if the scene is dark try the obvious thing. turn up the light.
2- if the contrast is too strong between your bright and darkareas, vray has a built in color area settings. you can make it exponential
3 - you can always increase your bounces as cocolas stated.

[graphicsgriffin]

Thank alot my friends for your help, cocolas, J_Bug and cpnichols (so far!)

And thanks for the tips,

Anyway, I'm not too new to VRay, I really know the program well, and according to you the value cannot be changed over 1.0, but I actually saw it at VRay.Info site, in the topics section, "It's not a party till it's bouncin'"
and the images contains a value of 4 for secondary bounces,



Thanks alot,
Yours faithfully
Graphics Griffin

[RErender]

The multiplier used to go over 1, can't remember exactly when that changed but it has been a long time.

[J_Bug]

I uploaded that archived to vray.info back when we were on the Delphi forums I think so that would have been before the version you're using.

--Jon