Quote - Hmm... there seems to be conflicting information.

Miss Nancy says to not use Irradiance Cache, but the discussion in the other thread says to use a value between 80 and 90.

And DreamlandModels says to turn off IDL completely. I'm not sure how this tells Poser to use indirect lighting to light an interior scene.

3D-Mobster- don't take this the wrong way, but your box has way too many polygons. If that's supposed to be a basic 6-sided cube, why are there so many poly around the corner area? This is probably why Poser is getting confused about how to render those polys.

I think your solution may be to optimize the model before bringing it into Poser. For example, do you really need all those polygons along the corner? Could they be combined into 1 polygon per side? See the image for what I mean.

jura11- I've always used a bucket size of 92 since I've thought a bigger bucket size results in a faster render. Maybe the opposite is true and I should be using a smaller bucket size for a faster render.

I have't tried using GC, though I'll have to see what that does.

 

Hi there

 

I've tried with 80-90 but render has been very slow and results has been bit conflicting for me.

I always using 32 bucket size,its not if will be faster,but with higher bucket size not sure if does render faster,but for sure will take more RAM like with 32,that's my view on this,I've not used higher bucket size unles I'm rendering with 3DS MAX where I'm using 64 usually,but in most cases 32 is enough

With GC you shouldn't need too many lights and without the GC(or GC off) its possible to create nice render without the splotches etc,but you will need to tweak in material room diffuse and ambient settings and here is my thread on same question over on RDNA http://forum.runtimedna.com/showthread.php?88632-Dark-splotches-with-IDL

Did you tried to turn off emitters there on parts which are most affected? Sometimes this can help,but i would try to at least have look at material room and tweak there materials,plus this depends on the lights too

As I've used mostly only 3 light setup(IBL,Infinite acted as sun and Infinite just for shadows),but now I'm using several  point lights with turned to Inverse and lights are positioned above ceiling not far from ceiling but not too close and I've added too IBL with one Infinite light,this has worked for me in several scenes 

 

Thanks,Jura