Vray 1.5 - everything is white! - SOLVED

[shaneburger]

Just got 1.5 from you all at SIGGRAPH, and am now testing it out.

However... when I try a scene, the lighting is completely blown out - meaning... I have to dial it down to insane low levels (doesn't always work) to get it to render.

FYI : I am playing with the new sun and sky.

Also... I have the sky in the environment map area, yet it does not show up in the rendering.

[instinct]

That's actually expected behaviour unless you use the VrayCamera and use real world values for Shutter/exposure etc.

Regards,
Thorsten

[Da_elf]

remember that the sun and sky are using high multiplier numbers because in reality sun and sky are really bright. put in a vray camera and let the camera exposure control how bright the scene is.

[shaneburger]

Gotcha.

Somehow I missed that during the demo at SIGGRAPH.

Is there any option in the future for an automatic exposure control? Max has one already, but maybe one in Vray?

[jujubee]

Or you can just lower the sun multiplier values to really low and use the regular cameras.

[Paul Oblomov]

Or color mapping with low multipliers.

[shaneburger]

I seem to be getting the hang of it now.

One last question :

Any plan to integrate the location/day-month-year aspect of the Max Sun?
I use this CONSTANTLY for stills and animations!

[Da_elf]

you could always align then link the vray suns nodes to the max suns nodes. and keep the max sun turned off

[dapeter]

I've found (using the linear workflow, by the way) that if you create a sun/sky system and use the gamma correction color mapping (with 'inverse gamma' set to .454) and then play around with the physical shutter speed and f-stop you can get good sun/sky images.

In the sample I did, I created the default sun/sky system, and had the f-number set to 10, and the shutter speed set to 120. The objects are the new Vrayblendmtl with a diffuse layer, reflect layer, and a glossy fresnel layer.