[Bf-docboard-svn] bf-manual: [7018] trunk/blender_docs/manual: Rendering deformation motion blur from Alembic caches

[Aaron Carlisle]

Revision: 7018
          https://developer.blender.org/rBM7018
Author:   Blendify
Date:     2020-09-01 21:06:51 +0200 (Tue, 01 Sep 2020)
Log Message:
-----------
Rendering deformation motion blur from Alembic caches

rBb5dcf746369e51c08285292cd78f621999dd09e9

Modified Paths:
--------------
    trunk/blender_docs/manual/animation/constraints/transform/transform_cache.rst
    trunk/blender_docs/manual/modeling/modifiers/modify/mesh_sequence_cache.rst

Modified: trunk/blender_docs/manual/animation/constraints/transform/transform_cache.rst
===================================================================
--- trunk/blender_docs/manual/animation/constraints/transform/transform_cache.rst	2020-09-01 18:30:28 UTC (rev 7017)
+++ trunk/blender_docs/manual/animation/constraints/transform/transform_cache.rst	2020-09-01 19:06:51 UTC (rev 7018)
@@ -44,6 +44,18 @@
 Manual Scale
    Value by which to enlarge or shrink the object with respect to the world's origin.
 
+Velocity Attribute
+   The name of the Alembic attribute used for generating motion blur data.
+   by default, this is `.velocities` which is standard for most Alembic files.
+
+Velocity Unit
+   Defines how the velocity vectors are interpreted with regard to time.
+
+   Frame
+      The velocity unit was encoded in frames and does not need to be scale by scene FPS.
+   Second
+      The velocity unit was encoded in seconds and needs to be scaled by the scene FPS (1 / FPS).
+
 Object Path
    The path to the Alembic object inside the archive.
 

Modified: trunk/blender_docs/manual/modeling/modifiers/modify/mesh_sequence_cache.rst
===================================================================
--- trunk/blender_docs/manual/modeling/modifiers/modify/mesh_sequence_cache.rst	2020-09-01 18:30:28 UTC (rev 7017)
+++ trunk/blender_docs/manual/modeling/modifiers/modify/mesh_sequence_cache.rst	2020-09-01 19:06:51 UTC (rev 7018)
@@ -44,6 +44,18 @@
    Subtracted from the current frame to use for looking up the data in the cache file,
    or to determine which file to use in a file sequence.
 
+Velocity Attribute
+   The name of the Alembic attribute used for generating motion blur data;
+   by default, this is `.velocities` which is standard for most Alembic files.
+
+Velocity Unit
+   Defines how the velocity vectors are interpreted with regard to time.
+
+   Frame
+      The velocity unit was encoded in frames and does not need to be scale by scene FPS.
+   Second
+      The velocity unit was encoded in seconds and needs to be scaled by the scene FPS (1 / FPS).
+
 Object Path
    The path to the Alembic object inside the archive.
 
@@ -52,3 +64,6 @@
    polygons, UV maps and Vertex Color layers.
 
    Vertices, Faces, UV, Color
+
+Velocity Scale
+   Multiplier used to control the magnitude of the velocity vector for time effects such as motion blur.