Gi Environment

[DaveP]

Can any using Vray, pls help.

When rendering interiors, i always have to increase the GI multiplier to about 10.0 to get the desired affect through the glass.

The problem i now face is a walking animation from external to internal.

 

All the materials outside are extremely burnt out from the GI and Sun.

 

I have tried toning down the affected materials ( which seems the wrong approach ) and i have also tried excluding from GI, which does not look very good either.

 

Am i approaching the lighting incorrectly or is there an alternative work around.

 

many thanks

David

[Tommy L]

Can you not treat the external and internal as seperate movies? SOmeone started a thread recently on 'animation dos and donts', long camera paths was top of the list for 'donts' for alot of people.

 

In reality, the light externally is far more intense than inside a structure. When seen through the eye or through a lense, the viewing apparatus compensates for this difference. When calculating virtual light, the compensation in the camera isnt there (unless you animate the parameters in a physically accurate camera), so you have to fake that. In other words, going from external to internal requires a non-physically accurate lighting system.

I guess what you could do is select everything thats external, right click, change the receive GI multiplier down till it doesnt burn out. You could put in two suns, the brighter sun excluding the external.

 

I would seriously recommend splitting the movie.