diff options
| author | Luca Rood <dev@lucarood.com> | 2017-02-24 01:00:03 +0300 |
|---|---|---|
| committer | Luca Rood <dev@lucarood.com> | 2017-02-24 01:23:39 +0300 |
| commit | 4c164487bc15854834577f2867623a83db75ed60 (patch) | |
| tree | 43088b4c23c55aed38ea7f34c9caf743926a05c4 /source/blender/blenkernel/intern/effect.c | |
| parent | 29859d0d5e6c0365fc86570fc235120314c6a9a4 (diff) | |
Add "Gravitation" option to "Force" type force fields
This adds an option to force fields of type "Force", which enables the
simulation of gravitational behavior (dist^-2 falloff).
Patch by @AndreasE
Reviewers: #physics, LucaRood, mont29
Reviewed By: #physics, LucaRood, mont29
Tags: #physics
Differential Revision: https://developer.blender.org/D2389
Diffstat (limited to 'source/blender/blenkernel/intern/effect.c')
| -rw-r--r-- | source/blender/blenkernel/intern/effect.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/effect.c b/source/blender/blenkernel/intern/effect.c index fe8f5ebdca6..4eee24b378f 100644 --- a/source/blender/blenkernel/intern/effect.c +++ b/source/blender/blenkernel/intern/effect.c @@ -848,6 +848,14 @@ static void do_physical_effector(EffectorCache *eff, EffectorData *efd, Effected break; case PFIELD_FORCE: normalize_v3(force); + if (pd->flag & PFIELD_GRAVITATION){ /* Option: Multiply by 1/distance^2 */ + if (efd->distance < FLT_EPSILON){ + strength = 0.0f; + } + else { + strength *= powf(efd->distance, -2.0f); + } + } mul_v3_fl(force, strength * efd->falloff); break; case PFIELD_VORTEX: |