Comments (2)
Hello and thank you for using ACL!
That is indeed a great use case. Another common one is to have blend shape weights animated along with gameplay parameters. The former might only be needed on higher end devices or depending on LOD but gameplay curves must always be present.
The truth is, scalar tracks haven't had as much love as joint tracks. They aren't contributing as much to the memory footprint (usually). As a result, they lack quite a few features. I do plan to have both at feature parity someday but not in the near term.
For scalar track database support specifically, I need to introduce segmenting first (which joints have long supported). The database optimization process is an O(N^2) algorithm and it does not scale with longer animations. Segmenting helps ensure a 32 key frame upper bound which keeps this fast and usable.
All of this is on my roadmap but not for v2.1 which I hope to release this year. Most of the big features have been completed for it and the prior release was a long time ago now so I don't want to include more things than currently scheduled. The next release, v2.2, will contain a lot of database improvements. Depending on my velocity, I may opt to include scalar track improvements in that release as well. I'll schedule this there for now, but that release won't be official until the 2023-2024 time frame even if that particular feature is implemented before that in the develop branch.
from acl.
Thank you for your attention! Looking forward to this.
from acl.
Related Issues (20)
- header->num_tracks is always 0 HOT 1
- Investigate different segment range packing
- Implement individual clip streaming support
- Treat values as fixed point when converting to bit rates during quantization
- Remap pointers in `decompression_context` and `database_context`? HOT 4
- Implement a velocity/acceleration based error metric
- Use object space shell distance to detect constant and default sub-tracks instead of threshold HOT 1
- Investigate if we still need the second pass during the bit rate optimization HOT 5
- Improve keyframe stripping
- require bool curve support HOT 1
- Request for Mirror Animation Feature in ACL HOT 3
- Add support for scalar track skipping
- Revisit bit rate permutations as degrees of freedom HOT 2
- Optimize bit rate permutation search HOT 1
- Does ACL take into account loss of precision between frames for additive animations? HOT 5
- Add support for playback scale during compression
- Implement decompression with CUDA to support ML training
- Add memory usage estimate for compression
- Investigate the Cayley transform to store rotations
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from acl.