Make rigidbody simulation handle animated objects gracefully

The animated objects was not updated for each internal substep for the rigidbody sim.
This would lead to unstable simulations or very annoying clipping artifacts.

Updated the code to use explicit substeps and tie it to the scene frame rate.

Fix T47402: Properly updating the animated objects fixes the reported issue.

Reviewed By: Brecht, Jacques

Differential Revision: http://developer.blender.org/D8762

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_math_vector.h b/source/blender/blenlib/BLI_math_vector.h
index 3399287dd46..1425e7da1bc 100644
--- a/source/blender/blenlib/BLI_math_vector.h
+++ b/source/blender/blenlib/BLI_math_vector.h
@@ -367,6 +367,10 @@ MINLINE bool compare_len_v3v3(const float a[3],
                               const float b[3],
                               const float limit) ATTR_WARN_UNUSED_RESULT;
 
+MINLINE bool compare_size_v3v3(const float a[3],
+                               const float b[3],
+                               const float limit) ATTR_WARN_UNUSED_RESULT;
+
 MINLINE float line_point_side_v2(const float l1[2],
                                  const float l2[2],
                                  const float pt[2]) ATTR_WARN_UNUSED_RESULT;