PPT vs Brute Force/Light Cache

[rmejia]

Hello,

Been testing out rendering using PPT, and have been trying to get the results to look closer to a Brute Force/Light Cache render. Here are the two renders. Any tips on what settings would bring the PPT image closer to the BF/LC ?
Link to higher res:
PPT
BF-LC
Detail

[vlado]

Is the "Subpixel mapping" option in the Color mapping settings enabled? If yes, then it is causing the differences in the renderings (basically the brute force rendering is darker than it should be, because of that option).

Best regards,
Vlado

[rmejia]

Hello Vlado,

Thanks for the reply. What I like about the brute force render is how smooth the highlights are. What I was curious about is the bright pixels in the PPT one. The white dots around the edge of the highlight of the red metal teacup and the colored dots around the edge of the glass teacup. I tried turning off caustic settings, but that produced different results. Is there any other way to make these less noticeable? Would letting it render longer eventually reduce these ?

[vlado]

The "subpixel mapping" option tones down the hilights in the brute force render; the bright pixels in the ppt rendering will eventually disappear, although it might take a while, as the ppt does not use any adaptation to focus on them specifically.

Best regards,
Vlado

[bardo]

robert, how long did render take to have that smooth result?

What's your hw specs??

thanks in advance.

[rmejia]

The PPT one I left over night and stopped in the morning, so maybe 8 to 10 hours, although the overall image gets smooth relatively fast except for the bright pixels.

The Brute Force/Light Cache I used the universal settings, not really sure what I set the noise to, but it took about the same time as the PPT. It could go a lot faster though, lowering the noise threshold. I had the time so I used high settings.

The images were rendered 1920 x 1200 on a Intel Xeon 2.80 GHz (8 core).

[voltron7]

Nothing helpful to add...
but great looking tests, Robert.
I especially like your flooring material, nice work.

[rmejia]

Thanks

Took me a while to do the floor. Used more than 30 pictures which were assembled in photoshop.

Link to higher res

[simmsimaging]

Nice materials Robert. Looks good.

b

[rmejia]

Thanks Brett!

[kosso_olli]

I like the scratches on the chromed pot on the left! How was it done? Map for the anisotropy?