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Git Commits -> Revision 2901d3d
Revision 2901d3d by Alexander Gavrilov December 16, 2020, 11:04 (GMT) |
Armature: add B-Bone lengthwise scaling and custom handle scaling options. In addition to the base bone transformation itself, B-Bones have controls that affect transformation of its segments. For rotation the features are quite complete, allowing to both reorient the Bezier handles via properties, and to control them using custom handle bones. However for scaling there are two deficiencies. First, there are only X and Y scale factors (actually X and Z, but this is the legacy naming), while lengthwise all segments have the same scaling. The ease option merely affects the shape of the curve, and does not cause actual scaling. Second, scaling can only be controlled via properties, thus requiring up to 6 drivers per joint between B-Bones to transfer scaling factors from the handle bone. This is very inefficient. This patch addresses these deficiencies by adding Length scale inputs, and providing toggles to apply custom handle local scale channels to the now four scale-related properties. The 'Length' name is used to avoid confusion due to the X/Y vs X/Z naming. The two Length scale inputs control the ratio between the lengths of the start and end segments of the bone: although for convenience two inputs are provided, the whole chain is still uniformly scaled to fit the curve. A Scale Easing option is provided to multiply the easing value by the Length scale factors to synchronize them - this produces a natural scaling effect where both the shape of the curve and the scale is affected. The second issue is addressed by providing toggles for each handle that multiply each of the X, Z, Length and Ease values by the matching Local Scale channel of the handle bone, thus replacing trivial drivers. The Scale Easing option has no effect on this process since it's easy to just enable both Length and Ease buttons. Finally, this fixes a strange behavior where the segments were not actually scaled in the Y direction to match their actual length, thus producing gaps or overlap depending on the shape of the curve. For transformation the change should be very small if enough segments are used, but this will affect the results of the Copy Transforms and Armature constraints, so a backwards compatibility option is provided. Newly created bones default to the new behavior. Differential Revision: https://developer.blender.org/D9870 |
Commit Details:
Full Hash: 2901d3de79890ee8aff9cb3c78371dca3ea45a48
Parent Commit: 2fcb7a2
Lines Changed: +364, -37
15 Modified Paths:
/release/scripts/startup/bl_ui/properties_data_bone.py (+35, -6) (Diff)
/source/blender/blenkernel/BKE_armature.h (+8, -4) (Diff)
/source/blender/blenkernel/intern/action.c (+6, -4) (Diff)
/source/blender/blenkernel/intern/armature.c (+130, -10) (Diff)
/source/blender/blenloader/intern/versioning_290.c (+29, -0) (Diff)
/source/blender/depsgraph/intern/builder/deg_builder_relations_rig.cc (+1, -1) (Diff)
/source/blender/draw/engines/overlay/overlay_armature.c (+15, -1) (Diff)
/source/blender/editors/armature/armature_add.c (+10, -0) (Diff)
/source/blender/editors/armature/armature_intern.h (+2, -2) (Diff)
/source/blender/editors/armature/armature_utils.c (+14, -0) (Diff)
/source/blender/editors/armature/pose_transform.c (+8, -4) (Diff)
/source/blender/editors/armature/pose_utils.c (+4, -0) (Diff)
/source/blender/makesdna/DNA_action_types.h (+2, -2) (Diff)
/source/blender/makesdna/DNA_armature_types.h (+33, -2) (Diff)
/source/blender/makesrna/intern/rna_armature.c (+67, -1) (Diff)
/source/blender/blenkernel/BKE_armature.h (+8, -4) (Diff)
/source/blender/blenkernel/intern/action.c (+6, -4) (Diff)
/source/blender/blenkernel/intern/armature.c (+130, -10) (Diff)
/source/blender/blenloader/intern/versioning_290.c (+29, -0) (Diff)
/source/blender/depsgraph/intern/builder/deg_builder_relations_rig.cc (+1, -1) (Diff)
/source/blender/draw/engines/overlay/overlay_armature.c (+15, -1) (Diff)
/source/blender/editors/armature/armature_add.c (+10, -0) (Diff)
/source/blender/editors/armature/armature_intern.h (+2, -2) (Diff)
/source/blender/editors/armature/armature_utils.c (+14, -0) (Diff)
/source/blender/editors/armature/pose_transform.c (+8, -4) (Diff)
/source/blender/editors/armature/pose_utils.c (+4, -0) (Diff)
/source/blender/makesdna/DNA_action_types.h (+2, -2) (Diff)
/source/blender/makesdna/DNA_armature_types.h (+33, -2) (Diff)
/source/blender/makesrna/intern/rna_armature.c (+67, -1) (Diff)