anyhow,  i posted a major problem area here..... and sorry if the example is small, but this is a brass bedframe way back in the scene and it is also purposely slightly out of the focal  range.
I wanted to  show it here as it is meant to be sized in the final render.

In this scene ONLY  the things shaded with this brass shader are doing this.
The brass shader I made is no big deal - it is simply a yellowish difuse with some spec and reflection .
This bedframe is being lit by an IBL with a small amount of AO, raytrace shadow, 
and it is  also lit by  a point light , raytrace shadow, no AO
and it is most likely catching light from a spot, no shadows.

render settings , are for 1 raytrace bouce  I am not using any kind of bump.

anyone know how to solve this?

Thanks

where?

sorry it is hard to give a good illustration

I think I see where you are referring, just under the second ring from the top on the brass post.  Santicor, try encircling the problem area for easier identification. 

left click to  enlarge/ then right click/ save this pic/ and open it / and zoom in.

this is actually very bad looking when viewing the render as a whole.

this is only occurring severely on the stuff shaded to  be shiny metal.

Do the horizontal lines agree with edges in the mesh? 

Looks like JPEG artifacts to me, not part of the render, but part of how you saved it.

Save as PNG please and check. If PNG is clean, you need to save with higher quality in JPG. Better yet, use something else to convert to JPG. Photoshop "Save for Web" is better (and different from) Photoshop "Save As".

Bagginsbill, I thought that too, but even in the render window of Poser, without exporting, this is the appearance.
even if I was saving as a JPEG,  it is all too extremely precise in its uniformity to be artifacts IMO .

here comes the whole render  so you can  see that it is only occuring on certain  objects:
the brass bedframe,  the handles of the drawers

BIG BOOBS  WARNING   ****NUDITY  ALERT **************   BIG BOOBS WARNING

I've seen this on renders with depth-of-field enabled without enough pixel samples - but you didn't mention using it. Could it be related to having too high a shading rate?

That was going to be my next suggestion. He did mention it:

"bedframe way back in the scene and it is also purposely slightly out of the focal  range"

NOw I KNOW  that the hair is gray,  and I know i have not properly worked the ligh pattern being cast on the wall behind her - I just have not tweaked those issues yet ...this is a test render and right now I am worried about the weirdness of the brass.

I cannot put the render here in the forum  full size BUT.
if  you save it and zoom,  you  will see that for most of the objects in this render, including 100% of the girl,  there are NO jpeg artifacts ...it is just the shiny stuff.

does a poor execution  of  DOF  by  firefly  maybe casue this?
I think this started happening when i  started rendering with DOF
Thanks

200K limit hit you?

Quote - That was going to be my next suggestion. He did mention it:

"bedframe way back in the scene and it is also purposely slightly out of the focal  range"

D'oh! Missed that whole second paragraph in the original post.

here is the best  I can do  to give example....here above this piece of the render ...her face is in the focal range, but the door handle  lower right is out of focus - see it is jagged

Yeah, I'd say this is DoF related. Try raising the pixel samples and do a small area render to test the problem parts (render time will most likely shoot up).

*@ Carodan -

Could it be related to having too high a shading rate?

*I'm  at werk now -
but If I remember correctly I had that bitch  cranked.

*Yeah, I'd say this is DoF related. Try raising the pixel samples and do a small area render to test the problem parts (render time will most likely shoot up).

• THANKS I WILL CHECK IT OUT!