Noise!

[janmazan]

I seem to be getting a bit of noise in this scene. The more reflective materials appear fine however the less reflective objects such as the bath / white walls / ceiling seem to be getting to much noise? any tips?

 

Any replies greatly appreciated

[mervin_lim23]

kindly post your rendering settings and lets find out where to fix your problem. if you're using IR as first bounce and lightchache as second bounce, set your IR to high and increase your light cache subdv (1200). set noise threshold to .005

[alfienoakes]

That scene looks to me, as if there is so little light in it, you will get noise appearing , unless you really up the settings.

 

I would first of all, try increasing the light in the scene. It would help the image anyway. Then re-visit the noise issue. It should be get better as you add more light.

 

I think Mervin is right as well, as the walls look blotchy. Thats a GI issue, and fairly easy to sort.

[mervin_lim23]

That scene looks to me, as if there is so little light in it, you will get noise appearing , unless you really up the settings.

 

I would first of all, try increasing the light in the scene. It would help the image anyway. Then re-visit the noise issue. It should be get better as you add more light.

 

I think Mervin is right as well, as the walls look blotchy. Thats a GI issue, and fairly easy to sort.

 

i agree to andy regarding in the light issue. increasing light in the scene will help minimize noise as well. and if i look at the scene its kinda boring coz it lack in element when it comes to its design. try to put more elements in the scene for added attraction. try to increase your IES light as well. it looks so dim to me. cheers

Edited July 6, 2009 by mervin_lim23

[janmazan]

When you say put more elements in the scene, do you mean some more items? I have added some more lighting which has certainly helped so thanks for that.

[Joseph Petrino]

Your Irradiance map settings look low, but how can anyone tell if you don't post your settings?

[BrianKitts]

set your IR to high and increase your light cache subdv (1200)

 

Completely overkill for this simple of a scene.

 

a medium IR, with samples of 30/30 should easily handle this scene. You could probably get away with 600 subdivs in your light cache.

 

To remove the big splotches up the samples in the IR (not the preset) the small noise should go away if you drop the noise threshold as mervin suggested.

[mervin_lim23]

When you say put more elements in the scene, do you mean some more items? I have added some more lighting which has certainly helped so thanks for that.

 

i"m not pertaining to your light. the scene is so minimal to me. but if its the intent of your design then its fine.

[mervin_lim23]

Completely overkill for this simple of a scene.

 

a medium IR, with samples of 30/30 should easily handle this scene. You could probably get away with 600 subdivs in your light cache.

 

To remove the big splotches up the samples in the IR (not the preset) the small noise should go away if you drop the noise threshold as mervin suggested.

 

your probably right brian. the scene is too minimal so its a n overkill indeed. but try to tweak it for you to arrive to a better image. but still try to post your setting ALI for us to find out where to adjust