JPGargoyle wrote:
>
> In some places the texture lines are jagged or incomplete, and the left side
> of the sphere is a mess.

Copy & paste from newusers:

  This was rendered with +a0.0 +r9. http://luxlab.com/tmp/aa.png

  Rendered at 500% resolution +a0.3 +r3, Gaussian blur 2.5 pixels in
  Photoshop and resampled (nearest-neighbour) to final size.
  http://luxlab.com/tmp/aa_hq.png

  The most important part is the Gaussian blur. I used 500% resolution
  just to get those very thin lines. For normal a scene 200% to 300% and
  1 to 1.5 pixel blur radius should be enough. The 50% blur radius seemed
  to be the minimum required to prevent visible aliasing. The image will
  look soft. Sharpening filter will just bring back the the jagged edges.
  It's a delicate balance between artefact free and sharp image.

I feel the Gaussian filter produces optimal anti-aliasing. It's so good
it's banned from IRTC :D The example image has maximum contrast. When
local contrast in image is lower less filtering is needed. The default
POV-Ray aa is enough for low local contrast.


This scene and camera position are less than optimal for radiosity
demonstration :) Try lowering the camera near a corner. The contrast
ratio in this scene is naturally low. If you don't wan't to post-process
drop assumed_gamma or use higher value as a kludge to increase contrast.

 
_____________
Kari Kivisalo

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