noisy image with HDRI

[akiefer]

Hi,

I am trying to light a scene exclusively with an hdri image. The result however is very noisy even with the very high setting in the GI presets.

Is there a way to fix this?

Albert

[Fluffy]

What are your GI settings?

[akiefer]

I don't know exactly... I just select the very high quality preset from the dropdown in the rendering menu...

Albert

[MrBraun]

U have used the light dome with HDRI?

[akiefer]

No... I used a sphere with the image mapped onto it? as a luminance material (converted from cinema material...)?

Albert

U have used the light dome with HDRI?

[akiefer]

here's an example of the 'spottiness' of panels that should be a smooth color or tone...

http://www.sectora.net/vray/vray_panel.jpg

What settings can I change in the renderer to increase the rendered output quality?

Albert

[afternooncoffeeboy]

http://www.spot3d.com/vray/help/150R1/images/animations/captures/7_ibl_final.avi <- this will help u alot

[vlado]

For HDRI-based lighting it is better to use a mapped dome light, rather than just GI environment.

Best regards,
Vlado

[Fluffy]

What settings can I change in the renderer to increase the rendered output quality?

Albert
Appart from what Vlado said, increase the hemispheric samples and interpolated samples values.

[akiefer]

Great :) You guys have obviously been working with this a lot more than the time it is released...

I cannot find any dome light option when I add a cinema light and a Vray light tag so this bring me no further (except a little more frustration that I know basically nothing...)

:cry: :cry: :cry:

Albert

[Tong]

Light type - Area light

Area Light - Area type - Dome ?

[akiefer]

Tong to the rescue :)

Wow now that's digging deep into drop downs to get to this...

I'll start playing with that now :)

Albert

[akiefer]

OK... before I start pullong my hair out and before bothering you people any more:

this hemispheric samples and everything... that's in the provisional manual right?

:?:

Albert

[Fluffy]

This can be found in the Irradiance options.

[Tong]

Leave hair ;-) it`s will disapear without your help in future ;-)

Fluffy mean: VrayBridge - Indirect illumination (GI) - Irradiance Map - Basic Parameters:

Hemispheric Subdivison

Interpolated samples

;-)

[akiefer]

Hi Tong,

Thanks for the comforting words :) Actually I am making ood progress with VRay and I should stay positive :)

In prelimibary tests it shows that I can get a comparable look GI images out of VRay in 20 minutes that takes Cinema's Advance Render, with Noise artifacts!, over two hours.

The reasons why I get a bit frustrated is that I am taking a risc now by moving a job for a big client over to produce in VRay and I have to meet deadlines. So when things are so much hidden or don't go as I expect it makes me jumpy.

But then again, discovery is one of the reasons I LOVE this line of work so much!

Albert

[Tong]

where comes money, jokes goes away.

I wish you luck with your client, and i wish him to be satisfied with your work.

[breakfast22]

http://www.spot3d.com/vray/help/150R1/images/animations/captures/7_ibl_final.avi
Hi,
so i don't have the codec needed to view this, does anyone know which one it is?
Thanks
B22

[Tong]

http://forum.vrayforc4d.com/viewtopic.php?p=1330#1330