Pixelated HDRI

[glorybound]

How do I correct my pixelated HDRI?

[idnok]

This is a feature that i've been asking for quite a while now.
The maximum HDRI size on V-R Dome ( v-ray GPU) is 8192 (memory efficient i guess).
Instead your CPU reads the full size of it.
So depending on your output size, it will be pixelated or not even if you take it up to 8192px.
Bear in mind V-Ray GPU doesn't affect how HDRI appears in reflections, in case you're willing to apply a backplate and cheat your background for high res outputs.

[glorybound]

Yeah, that was my workaround, but for an animation, it won't work and this is for animation.

[idnok]

If you apply it to a geo sphere or to Env map will read it full size but may "kill" your GPU Mem.
What i do is render just HDRI as sequence.. then apply it to a backplate.
I know it sounds weird but it served its purpose.

[glorybound]

I think raising it to 8192 did the trick, thank you!

[idnok]

On V-ray Next Update 1 they've improved this a lot.
Even if you load a 24k HDRI, with 8192px you'll have a nice background.

[glorybound]

I have Update 1

[squintnic]

wouldnt it be much easier to have a fast render and comp in the background? try fusion its free....

[glorybound]

I don't know, 4k in an hour is pretty fast. This will eventually be an animation, so in post-production might be more of a challenge.

[vlado]

Won't it work better to make the dome light invisible and set the HDRI as a background map as well?

Best regards,
Vlado

[glorybound]

Funny you said that. That's my usual workflow, but based on a previous post, I was told that was an odd way to light a scene .

[glorybound]

Won't it work better to make the dome light invisible and set the HDRI as a background map as well?

Best regards,
Vlado

HDRI as background in MAX's environment or V-Ray's Environment override? I have always used MAX's environment slot.

[vlado]

HDRI as background in MAX's environment or V-Ray's Environment override? I have always used MAX's environment slot.

It doesn't really matter.

In any case, we should do internally the same thing (we do it for the CPU anyways). I'll make a note about it.

Best regards,
Vlado