Wishlist Vray3, Production

[daveyjones26]

Hi sorry for posting here, this is the only thread i can post in, for policy reasons.

here my wishlist for Vray:

FrameBuffer
Normalize button, to check clipping black levels highlights, yes you can do it in the force colour clamping control or even a LUT. But would be nice just have an shortcut just to press to toggle off and on quickly.

Load back plate in the VRB buffer. So if you have a back plate you can load in/ dont have to re-render if you want to change the background image.
Can be a sequence file too. Yes you can do this in 3ds environment background, but you have to re-render if you want to change the background after.

keyboard Shortcut for LUT toggle on/off, maybe one already?


Lights
Liner Decay
I know that Vraylights are based on physically based lighting, sometimes doesn't give the most pleasing result or what is required from art direction. Would be great if you have an option for liner Decay on vray lights. Giving more control over the decay of light.

Colour tint
Its great that Vraylight have a kelvin temperature, but lights in reality have some sort of tint (towards green or magenta) would be awesome to have a slider.


Barn Doors
Barn doors light rig?

VRay Object Properties
Reflection / Refraction exclusion, I love this feature been waiting ages for this. Just a little tweak for this,
Have the option per object to reflect as a solid colour. To help speed up render times.


Hope this helps, if there are ways of doing these things, i have mentioned pls post here.

Thanks
Ravi

[vlado]

Have the option per object to reflect as a solid colour. To help speed up render times.

You can do this with V-Ray material override attributes - you can specify a different material for reflections, and it can be just a solid color material.

Best regards,
Vlado

[vlado]

Its great that Vraylight have a kelvin temperature, but lights in reality have some sort of tint (towards green or magenta) would be awesome to have a slider.

In newer builds, there is an option to multiply the texture color of the rectangle/dome light by the light color. So you can use temperature for the normal light color, but multiply it additionally with some other color to get variations.

Best regards,
Vlado

[daveyjones26]

You can do this with V-Ray material override attributes - you can specify a different material for reflections, and it can be just a solid color material.

Best regards,
Vlado

Thanks Vlado for your feedback,
From what i understand is, with the V-Ray material override attributes, that effects globally only?
what im after is, say if i have a chrome teapot in a scene and sphere, both reflecting a plane with glossiness.
I want the teapot to reflect the plane as a solid colour and the sphere to reflect the plane with glossiness. Can that be done with V-Ray material override attributes?

Any chance of a Normalize, in the VFB? its really useful to have, studios who have this in there render buffer window to check clipping black levels.

[vlado]

what im after is, say if i have a chrome teapot in a scene and sphere, both reflecting a plane with glossiness. I want the teapot to reflect the plane as a solid colour and the sphere to reflect the plane with glossiness. Can that be done with V-Ray material override attributes?

Ah no, that can't be done. We could look into it, but the logic for material evaluation is getting quite convoluted already as it is...

Any chance of a Normalize, in the VFB? its really useful to have, studios who have this in there render buffer window to check clipping black levels.

I did not really understand that item. What exactly would such a button do?

Best regards,
Vlado

[daveyjones26]

I did not really understand that item. What exactly would such a button do?

Best regards,
Vlado

Its basically previews all the information available by making the image very flat, so you can see how much information is in the blacks and white very quickly, better than zebra stripes. As you can see the roll-offs on the blacks and whites.
This explains it better
http://www.roborealm.com/help/Normalize.php

Any thoughts on the linear decay on vray lights?

[vlado]

Its basically previews all the information available by making the image very flat, so you can see how much information is in the blacks and white very quickly, better than zebra stripes. As you can see the roll-offs on the blacks and whites.
This explains it better
http://www.roborealm.com/help/Normalize.php

I'm not sure how this is different from the histogram preview and color correction that we already have in the VFB.

Any thoughts on the linear decay on vray lights?

Yes, it's not going to happen I'm afraid. I've gotten into enough trouble with the "No decay" option as it is...

Best regards,
Vlado

[daveyjones26]

Thanks vlado for bouncing off ideas

I think i maybe able to emulate Normalize, though doing opposite of an contrast curve ( in the curves) but not sure if this is mathematically correct but will do the job

Ravi