Enlighten, Compositing jobs take enormous time

Unity Engine
1

Starting from 5.0.0p3 “Compositing jobs” takes much more time than before. Before the patch I could bake my simple scene in 2-3 minutes, but now (with 5.0.1) it takes more than 15 minutes to complete.

For example:
[00:04:44] Enlighten: Finished 23 Clustering jobs (27.77s execute, 0.00s integrate, 15.66s wallclock)
[00:05:04] Enlighten: Finished 23 Visibility jobs (33.73s execute, 0.01s integrate, 20.14s wallclock)
[00:06:21] Enlighten: Finished 23 Light Transport jobs (144.18s execute, 0.06s integrate, 77.11s wallclock)
[00:06:21] Enlighten: Finished 1 Tetrahedralize Probes job (0.00s execute, 0.00s integrate, 0.04s wallclock)
[00:06:21] Enlighten: Precompute took 114.557419 seconds.
Enlighten scene contents: 53 geometries. 167 instances. 23 systems. 0 probe groups. 0 cube maps. Scene is up-to-date.
…
[00:07:18] Enlighten: Finished 2 Bake AO jobs (61.58s execute, 0.00s integrate, 51.40s wallclock)
[00:08:06] Enlighten: Finished 2 Bake Visibility jobs (56.80s execute, 0.00s integrate, 47.85s wallclock)
[00:08:29] Enlighten: Finished 2 Bake Direct jobs (29.45s execute, 0.00s integrate, 23.28s wallclock)
…
[00:16:33] Enlighten: Finished 3 Compositing jobs (1755.04s execute, 0.00s integrate, 956.74s wallclock)
[00:16:33] Enlighten: Bake took 988.413484 seconds.

And the next one:
[00:38:06] Enlighten: Finished 2 Compositing jobs (960.26s execute, 0.00s integrate, 786.41s wallclock)
[00:38:06] Enlighten: Bake took 940.359585 seconds.

From the 5.0.0p3 patch notes:

  • GI: Sped up baked lightmaps compositing.
2

Same here. I haven’t looked at the numbers (couldn’t find the file actually). But since updating to 5.0.1 it’s taking a ridiculous amount of time. Cache file is larger too.

3

Would it be possible to get a bug report with the scene affected?

4

I tried exporting the scene without additional assets and scripts, and it passes the “Compositing jobs” step almost instantly. With the same settings my real project is always stuck for 8-15 minutes each time I bake the light. I am so tired of this BUG, thinking of packing all the stuff for the bug report, but it will be several gb.

5

Oh, I got it. The “Compositing jobs” step takes 10 minutes only when I select Android as a target platform. When I select “Standalone” the step takes only 3 seconds. Why does platform selection affect the time of the step so much?

6

I’ve submitted a bug.

7

Could you please post here case #?

8

Case 686576, I had to attach some models from the asset store, so I made the BUG non-public. (I wasn’t sure if files are accessible to public or not.)

9

Sounds like Android texture compression is slowing things down.

10

Probably. I tried testing without “Compressed” option and it looks like the “Compositing jobs” process takes only several seconds. Why compression takes so much time then? My computer can compress 4096 textures in 10-15 seconds, and my lightmaps are only 1 or 2 2048x atlases.