Fix T90346: particle force field self effect amount off by one

When calculating the particle step in `get_effector_tot`, we have to
round up (otherwise we might get an extra round in the for-loop in
`BKE_effectors_apply` for certain cases).

Example from the report:
- 10.000 particles, Effector Amount 3
- was rounding the step down to 3333
- going into the for-loop for 0, 3333, 6666 and 9999 (4 times)
- now rounding the step up to 3334
- going into the for-loop for 0, 3334 and 6668 (3 times as desired)

Maniphest Tasks: T90346

Differential Revision: https://developer.blender.org/D12113
This commit is contained in:
Philipp Oeser 2021-08-03 12:36:59 +02:00
parent 20d5d7b8ec
commit b35a96e195
Notes: blender-bot 2023-05-03 10:14:48 +02:00
Referenced by issue #90346, particle force field self effect number
1 changed files with 1 additions and 1 deletions

View File

@ -861,7 +861,7 @@ static void get_effector_tot(
int totpart = eff->psys->totpart;
int amount = eff->psys->part->effector_amount;
*step = (totpart > amount) ? totpart / amount : 1;
*step = (totpart > amount) ? (int)ceil((float)totpart / (float)amount) : 1;
}
}
else {