A few changes

I’ve just committed a batch of changes that have piled up on my machine. Most are architectural improvements plus a few bugfixes. Here is a list of changes:

  • Switched to a cleaner build system organization (1 SConscript file per directory instead of a single huge file)
  • Robustness improvements to the KD-tree construction code: it now does a better job at handling degenerate triangles
  • Switched to an epsilon-free KD-tree traversal loop based on Havran’s T_{AB}^{rec} algorithm
  • Generalization of the KD-tree construction code (now supports plugging in arbitrary tree construction heuristics)
  • Addition of some utility code (a LRU cache, adaptive Gauss-Lobatto quadrature, etc.)
  • Switched to a generic dense matrix class that supports arbitrary dimensions
  • Pixel traversal within image blocks now uses a space-filling curve ordering
  • Added support for several noise functions from PBRT
  • Cleanups of various top-level interfaces (Luminaires, Phase functions, BSDFs, Participating media, etc.)
  • Robustness improvements to the participating media code (faster + now does a better job at dielectric boundaries)
  • Added a basic tonemapping utility (can be invoked via mtsutil)

      • This entry was posted on Thursday, February 3rd, 2011 at 8:12 am and is filed under Announcements. You can follow any comments to this entry through the RSS 2.0 feed. You can leave a comment, or trackback from your own site.

11 comments

  1. Ejnaren
    February 3, 2011 at 2:37 pm

    Welcome back :) How did your Siggraph work go..?

    Reply
  2. TwinSnakes
    February 3, 2011 at 7:36 pm

    Thanks for you continued development efforts. Just did a Linux64 build and everything looks fine.

    Reply
  3. JoseConseco
    February 4, 2011 at 11:11 am

    I dont’t know whats most of this stuff meeans, but looks like you have done a lot of job.

    Reply
  4. kilikoro
    February 4, 2011 at 3:17 pm

    It’s like chinese for me

    Reply
  5. Wenzel Jakob
    February 4, 2011 at 5:01 pm

    It went well, thank you. It will still take a while until everything makes its way into the official Mitsuba releases though.

    Reply
  6. Jose
    February 5, 2011 at 11:51 am

    Wenzel, do you have some video recorded form siggraph? Wold be cool to see how it was like.

    Reply
  7. Ejnaren
    February 8, 2011 at 9:47 pm

    Nice. Can you tell something about it or only after siggraph starts..?

    Reply
  8. el Mustafa
    February 20, 2011 at 11:37 am

    Hi there.
    Tried the renderer on both Mac OSx and Windows 17 (or whatever it is called nowadays). Really impressed.

    Let us know when/if you plan to set up a donation account. Don’t expect much but it’s the thought that counts! I’d like to see Mitsuba as a stand-alone product one day especially so because of your work on volumentrics. That’s quite something.

    Reply
  9. Martin Lindelof
    March 5, 2011 at 5:36 pm

    I can’t build no more, breaks on g++ check it out.

    http://pastebin.com/QWa2mxQq

    says boost lib might be missing.

    Reply
  10. JoseConseco
    March 30, 2011 at 1:37 pm

    Hi Wenzel Jakob, is that me or I smell new mitsuba coming soon?

    Reply

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