I presume this is with a v1 branch. Alas, there is not too much that can be done.
V2 has support for multiparts so grouping those channels into separate parts would be the way to go. In such a case the library can simply skip over the parts that you are not requesting. Piotr ________________________________________ From: openexr-devel-bounces+pstanczyk=ilm....@nongnu.org [openexr-devel-bounces+pstanczyk=ilm....@nongnu.org] on behalf of Brendan Bolles [bren...@fnordware.com] Sent: 11 December 2012 16:28 To: openexr-devel@nongnu.org Subject: [Openexr-devel] Multi-channel speed A colleague of mine ran some tests using playexr. He had one EXR sequence containing just the regular RGB channels and another with 43 additional channels added. Maybe it will come as no surprise that the multi-channel files play much slower, by a factor of 8 in this case. Is this the unavoidable result of the way channels are interleaved in an EXR file? Are there any strategies to speed things up? Brendan _______________________________________________ Openexr-devel mailing list Openexr-devel@nongnu.org https://lists.nongnu.org/mailman/listinfo/openexr-devel _______________________________________________ Openexr-devel mailing list Openexr-devel@nongnu.org https://lists.nongnu.org/mailman/listinfo/openexr-devel
