There is 1 only light from a windows.

This is in low resolution

Ideas ?

This is the external view.

Any ideas ?

Many thanks.

1

Irradiance catching 39?

Try 64, 70, 80 or 90 - 97

2

For wall, in materials, check "normals forward".

3

Instal SR3.1, uncheck irradiace catching, set sample to 256

http://poser.smithmicro.com/updates.html

Thanks, i do some tests then i came back.

I followed your advice, no difference in the result.

any other ideas?

Quote - I followed your advice, no difference in the result.

any other ideas?

Aww, no sorry.

something happens with the only light outside, I have to keep "shadow blur radius" high to soften the shadows, but this causes the points blacks that you see ... I can not find solution ....

many thanks again...

waiting for help....

Have you tried changing it to a spot light ?

Anyways, blurry shadows are really buggy in firefly for some reason. I also get lots of nasty artifacts if I set the blur radius higher then10-12. Dunno if there is any solution, sorry...

this is only a test with a windows, but i need a scene with more windows and a spot light is not good for my work.

thanks the same....

I think this has to do with indirect light. You always get some strange things going on with shadows and indirect light. There are other people that know a lot more about it than I do. Maybe they will jump in.

Quote - ...And the setting for the only light.

The larger your light's "shadow blur radius" is, the more "shadow samples" you will need to get a smooth shadow (the setting is in the light properties just below the blur radius). With a blur radius of 20, try with "shadow samples" set to e.g. 200 or so (makes render times longer, so you might want to set a high value only for the final render).

millighost, is a blur radius/samples calculation x10 ( i.e. if the blur were set to 6, set samples to 60) be a good starting point formula for RT shadows?

Erm, can I ask why you'd want a shadow blur to be 20? I'm looking around my rec room right now lit by a flourescent light and I guesstimate the blur to be no more than a 5. Is the only light for your scene coming from the window? I usually use a shadow blur of 3 or 4 and put my samples at 50 to 70 on each light.

looks like I found my answer in a thereabouts yes from Latexluv, sorry for the hijack...

As an aside, the settings xpdev has in his screencap seemed rather unusual to me.

xpdev knows what he must do.  earth's sun and poser point-source ray-traced directional lights produce harsh direct shadow edges with some blurring that is a function of the distance from the shadow-casting edge to the shadowed surface, whilst a large diffuse-emitting surface will produce very soft shadows in poser.

I think the hight the shadow blur  value the higher the pixel sampling should be set in render settings.

It was posted elsewhere that the rule of thumb for light shadow sampling should be 10x higher than the Shadow Blur Radius.