SprBlender(en) のバックアップ(No.2)

• バックアップ一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• SprBlender(en) へ行く。
  • 1 (05.23 (水) 14:36:03)
  • 2 (05.23 (水) 14:36:47)

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SprBlender

Installation

1. Download & Install Blender (newer than 2.5)
2. Download SprBlender
   • SVN Checkout : svn+ssh://springhead.info/home/svn/lab/Experiments/trunk/SprPyBlender
     • (please rewrite "springhead.info" according to your PuTTY settings)
     • copy "SprPyBlender\scripts\modules\spr_op" to "c:\Program Files\Blender Foundation\Blender\2.63\scripts\modules\spr_op"
3. Get Spr.pyd
   • from http://springhead.info/spr2/Springhead2/trunk/bin/win64/ (or win32)
   • place in "c:\Program Files\Blender Foundation\Blender\2.63\scripts\modules"

User Inteface

• About Blender : See tutorial. http://www.cgradproject.com/Blender_Tutorial/tutorial_Blender_tute_menu.html

• SprBlender UI
  • Scene panel in "3D view"
  • some tabs in "Properties"
    • "Object"
    • "Material"
    • "Scene"
  • "Text Editor"

Solids & Shapes

• SprObjectPanel, in "Object" tab
  • Set Dynamical
    • or Static (= fixed objects). (e.g. Floor)
  • specify Shape -> added as simulated entity
    • i.e. You can't create solid WITHOUT any shape

• Real-time Editing
  • if Available (green check-marked parameters)
    • if Enabled : changes is applied in real time (while simulation)
    • if Disabled : push "Apply Parameters"
  • Otherwise
    • push "Set Scene" or "Set Objects" to apply

• Object with Complex shape
  • -> Multiple blender-objects to construct One Solid
  1. "Object" tab, "Relations" panel
     • base object as parent, additional shape objects as child
  2. set shape type "Convex" for Child object (in SprObjectPanel)
  3. enable "Compound Child" check

Execute Simulation

• Scene settings, right-side in "3D view"
  • if hidden, find "+" mark and click

• Set Scene
  • Build springhead scene-graph internally, from Blender objects

• Physics Steps Enable
  • Start Simulation

• Set Objects
  • Apply changes on selected blender objects, into springhead scene

• "Scene" tab in "Properties"
  • also has some settings on simulation

What's "Set Scene" or "Set Objects"?

(see figure)

Joints & IK

• Blender object <=> ( solid ＆ joint to parent object )
  • (see figure)

Create Joint

• SprJointPanel
  1. Select Joint Child Object
  2. Set Joint Type
     • some joint types : see Springhead Document.
  3. Set Joint Target : Joint will be connected to this object
  4. Plug Handle Mode
     • Edit position of joint
     • push "Apply" after edit

Joint Limit

• see Springhead Document.
  • (some types of joint limits seems to have some bugs... sorry.)

Joint Actuation

• Spring / Damper is embedded on each joints.
  • set Spring / Damper parameters in SprJointPanel

Joint Actuation with IK

• for Arm-like objects
  • Goal position/orientation of end-point object is given
  • Arm objects will automatically controlled

• for each arm object
  • SprIKPanel : check "IK Enabled"
• for each end-point object
  • SprIKPanel : check "IK EndEffector"

• to see how it works
  • in Spr IK Control Panel
  • Enable "IK Real-time Control"
  • Check "Enable Target Object"
  • Set target object name

• Joint Parameters
  • IK use "joint damper" for actuation
  • set large value as damper for arm joints

Creature

• if the object is a part of creature body :
  • check "Creature Body" in SprCreaturePanel

• to use default scripts : set Labels as follows
  • Head Object : CRIKSolid label "Head", CRIKJoint label "Neck"
  • Hand Object : CRIKSolid label "RightHand", CRIKJoint label "RightElbow" (or Left)
  • Waist Object : CRIKSolid label "Waist", CRIKJoint label "Waist"
  • Base Object : CRIKSolid label "Base", CRIKJoint label "None"

• check "Creature Core" for "Base" object

• in "Text editor" : add text with name "cr_0_0_Basic"
  • type followings

    #cr_0_0_Basic
    #This is Basic Rule for cr_0
    #To Use Multi Rules, Create Rule-Name-List as "cr_0_rules"
    #------------------------------
    #Rule Properties
    p = [1,1,1,1,1,1]
    import bpy
    if "Base" in bpy.data.objects:
       p[0] = bpy.data.objects["Base"].spr_creature_rule_parameter_0
       p[1] = bpy.data.objects["Base"].spr_creature_rule_parameter_0
       p[2] = bpy.data.objects["Base"].spr_creature_rule_parameter_0
       p[3] = bpy.data.objects["Base"].spr_creature_rule_parameter_0
       p[4] = bpy.data.objects["Base"].spr_creature_rule_parameter_0
       p[5] = bpy.data.objects["Base"].spr_creature_rule_parameter_0
    
    #------------------------------
    currentModel = self.models["current"]
    maxAttvSo = currentModel.maxAttvSo
    maxAtttSo = currentModel.maxAtttSo
    maxAttSo = currentModel.maxAttSo
    if maxAttSo:
       self.HeadController.LookAt(maxAttSo.phSolid.GetFramePosition(),Spr.Vec3d(),1)
       #self.LeftHand.SetTargetPos(maxAttSo.phSolid.GetFramePosition())
       #self.RightHand.SetTargetPos(maxAttSo.phSolid.GetFramePosition())
       #self.LeftHand.Start()
       #self.RightHand.Start()

• Start Simulation (in Spr Operator Panel)
  • Enable IK
  • Enable Creature
  • Physics Step Enable

Scripting

• "cr_0_0_Basic" script runs on each step.
  • write sensor -> action cycle here

Advanced Scripting

• see SprPyBlender\scripts\modules\spr_op\creature.py

Skin mesh & Creature

• Use parent-child relations
  • Springhead actuate parent object -> blender render related mesh