Stream: brlcad

Topic: interactive ray tracing


view this post on Zulip Sean (Jan 25 2018 at 03:48):

For those interested, here's a sneak peak at a new interactive ray tracing interface I've been playing with: ort_havoc.png

view this post on Zulip Sean (Jan 25 2018 at 03:48):

@Daniel Rossberg you might find that interesting ;)

view this post on Zulip Sean (Jan 25 2018 at 03:51):

havoc is a considerably more impressive model when you take away the colors.. the attention to detail is fantastic

view this post on Zulip Sean (Jul 11 2026 at 16:27):

Finally figured out what was wrong with the IBRT build integration!

Was working well on reviewing and integrating our collab with TAMU last fall, then hit a snag when it was converted over to using BEXT for its dependencies. Visual artifacts galore and long debugging iterations over the past few weeks trying to figure out what was wrong.

Turns out it was an ISPC ABI mismatch... (!)

ISPC is the glue between OSPRay, Embree, and LIBRT. Now that's fixed, we're finally good to go, ready to get CI producing releases, and finally publish it!

For anyone thinking "what is IBRT??" it's the real-time interactive BRL-CAD ray tracing geometry visualization prototype I showed a few months back. Intent is for this to eventually become a modern visualization mode available to most of our graphical apps.

view this post on Zulip Sean (Jul 11 2026 at 17:44):

Screenshot 2026-07-11 at 1.42.36 PM.png

view this post on Zulip Sean (Jul 11 2026 at 20:25):

This is what ISPC ABI incompatibility looks like:
moss-all_scivis_1200x900.png

view this post on Zulip Sean (Jul 12 2026 at 21:37):

Screenshot 2026-07-12 at 5.20.45 PM.png
Screenshot 2026-07-12 at 5.34.07 PM.png

And now with wireframes working!

view this post on Zulip Sean (Jul 12 2026 at 21:41):

ibrt_demo.mp4


Last updated: Jul 25 2026 at 01:46 UTC