World Scale with IR map and Light Cache...

[stilgarna]

Hello....

Is it better to works at real scale with vray... or it doesn't matter ??

[Da_elf]

i think i remember somewhere that there was a glitch with it and vray

[jow]

I do most of my stuff at real-world scale(1:1), its ok for small scenes but large ones you get the dreaded "Scene bounding box is too large, possible raycast errors" so you'd need to re-scale.

[vlado]

I do most of my stuff at real-world scale(1:1), its ok for small scenes but large ones you get the dreaded "Scene bounding box is too large, possible raycast errors" so you'd need to re-scale.

It's a matter of choosing your system and display units carefully.

Best regards,
Vlado

[jow]

I do most of my stuff at real-world scale(1:1), its ok for small scenes but large ones you get the dreaded "Scene bounding box is too large, possible raycast errors" so you'd need to re-scale.

It's a matter of choosing your system and display units carefully.

Best regards,
Vlado

Hehe! i think i didn't explain myself to well -
I generally work 1:1 this being 1 unit = 1mm (old habits!) which is ok for small scenes, but i find with large scenes i get the "bounding box to large" error. So i re-scale to 1unit =1cm or 1m..

[stilgarna]

Thanks for your quick answer....

I work 1 unit = 1 cm...

[zeronove]

this is an old neverending issue...
working as an italian architect I can say that we actually use cm (system unit) for our projects but from when I heard from Vlado that Vraylights work in meters I tried switching to meters too (system units); I think of display units only as a tool to avoid not useful decimal numbers in our spinners.
I prefer leaving mm for mechanical drawings but I can remember someone using that units saying that it allow more precision in their settings; I don't know if this make sense or is a sort of "urban legend"

maybe another clearification from chaos could be useful

my 2 cents

a.

[trixian]

I do most of my stuff at real-world scale(1:1), its ok for small scenes but large ones you get the dreaded "Scene bounding box is too large, possible raycast errors" so you'd need to re-scale.

It's a matter of choosing your system and display units carefully.

Best regards,
Vlado

Actualy, I'm interested in knowing how display units would affect vray in any way.
System units I get, but aren't display units just an UI thing to make things easier when working?