TSC Meeting Notes 2020-09-24

Owned by Cary Phillips
Nov 04, 2022
1 min read

Attending:

  • Cary Phillips

  • Christina Tempelaar-Lietz

  • Joseph Goldstone

  • Kimball Thurston

  • Nick Porcino

  • Peter Hillman

  • Larry Gritz

  • Rod Bogart

  • Owen Thompson

Discussion:

  • Joseph raised the issue of "Standard Optional Attributes", should the be added to the reference implementation? We raised the issue around SIGGRAPH and Open Source Days but got no feedback. How do we get feedback from the community? Suggestion: Just send it to Josh Pines, John Cortell, and the usual suspects at major facilities.

  • The attributes don’t affect the image, they just help with interpeting the data.

  • Peter: put an image in the openexr-images repo that illustrates the new attributes, so it gives people an opportunity to actually see what it would look like.

  • Rod: We have been working on an optimization about reading really big exrs as fast as possible. At 8Kx4K, we can get about 3 per second. Tried memory mapping, got to 5/sec. Structured buffer on the GPU, using GPU to decoded the data got to 18/sec. But it’s specific to particular EXR. Is this something we should consider supporting at the library level?

  • Rod: one option is use something other than EXR. Please say no.