Precalc irr maps in VRay

[jledezma]

I'm rendering an animation using VRay. I previously did a precalculation and stored the irradiance map. I've been fine tunning some materials, specular reflections, dimming maps, color adjustments. These are all small changes and every time I render it loads the stored irradiance map.

 

Here comes the problem, I don't know why but suddenly, even the map is loaded VRay now goes all the way thru 4 prepasses. The last change I did was a material changed from Standard with a VRay map for reflection to a Vray Material. Since I saved the previous material I returned to that one but VRay is still doing all GI calculations again.

 

Any clue?

[skogskalle]

dont know... are you sure its calculating GI? maybe its just calculating reflectionmaps... this happens when you use interpolation in your glossy reflections.

 

if not, then I have no clue...

[Tony]

Yep. Kalle nailed it! Interpolation on your glossy reflections.

[jledezma]

That's right I added interpolation. Can this be included on precalc or is this something that needs to be calculated frame by frame? mmm... I guess not... I think I'll need to avoid this then

[skogskalle]

interpolation can save some time, but can also produce some ugly blurred reflections... if you can, I think you should avoid them.

 

you should read the latest tutorials on animations over at chaoticdimension... I think you can use the lightmap for calculating glossy relflections somehow.. havent tried it myself yet, but its supposed to be pretty fast.