db4d58b01d
Bone now inherit from MatrixTransform. It simplify a lot the update of Bone matrix. It helps to have the bone system more generic. eg it's now possible to have animation data with precomputed bind matrix. The other benefit, is now the collada plugin will be able to use osgAnimation to display skinned mesh. Michael Plating did a great work to improve this aspect, he is working on the collada plugin and should be able to submit a new version soon. The RigGeometry has been refactored so now it works when you save and reload RigGeometry because the source is not touched anymore. The benefit with this update is that it should be now possible to use a MorphGeometry as source for a RigGeometry. The bad news is that the format has changed, so i have rebuild osg-data related to osgAnimation data, updated the blender exporter to export to the new format. The fbx plugin could be touched about this commit, i dont compile it so i can't give more information about it. The bvh plugin has been updated by Wang rui so this one is fixed with the new code of osgAnimation. The examples has been updated to work with the new code too... The example osg-data/example.osg should be remove, it's an old example that does not work. For people using blender the blender exporter up to date is here: http://hg.plopbyte.net/osgexport2/ it will be merge to http://hg.plopbyte.net/osgexport/ as soon as the modification will be push in the trunk. "
366 lines
11 KiB
C++
366 lines
11 KiB
C++
/* -*-c++-*-
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* Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGANIMATION_EASE_MOTION_H
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#define OSGANIMATION_EASE_MOTION_H
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#include <osg/Referenced>
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#include <osg/ref_ptr>
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#include <osg/Notify>
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#include <osg/Math>
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#include <vector>
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namespace osgAnimation {
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struct OutBounceFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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if ((t) < (1/2.75))
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{
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result = 7.5625 * t * t;
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}
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else if (t < (2/2.75))
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{
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t = t - (1.5/2.75);
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result = 7.5625* t * t + .75;
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}
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else if (t < (2.5/2.75))
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{
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t = t - (2.25/2.75);
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result = 7.5625 * t * t + .9375;
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}
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else
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{
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t = t - (2.625/2.75);
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result = 7.5625* t * t + .984375;
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}
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}
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};
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struct InBounceFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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OutBounceFunction::getValueAt(1-t, result);
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result = 1 - result;
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}
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};
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struct InOutBounceFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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if (t < 0.5)
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{
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InBounceFunction::getValueAt(t * 2, result);
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result *= 0.5;
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}
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else
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{
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OutBounceFunction::getValueAt(t * 2 - 1 , result);
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result = result * 0.5 + 0.5;
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}
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}
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};
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/// Linear function
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struct LinearFunction
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{
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inline static void getValueAt(float t, float& result) { result = t;}
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};
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/// Quad function
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struct OutQuadFunction
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{
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inline static void getValueAt(float t, float& result) { result = - (t * (t -2.0));}
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};
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struct InQuadFunction
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{
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inline static void getValueAt(float t, float& result) { result = t*t;}
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};
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struct InOutQuadFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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t = t * 2.0;
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if (t < 1.0)
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result = 0.5 * t * t;
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else
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{
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t = t - 1.0;
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result = - 0.5 * t * ( t - 2) - 1;
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}
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}
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};
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/// Cubic function
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struct OutCubicFunction
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{
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inline static void getValueAt(float t, float& result) { t = t-1.0; result = t*t*t + 1;}
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};
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struct InCubicFunction
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{
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inline static void getValueAt(float t, float& result) { result = t*t*t;}
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};
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struct InOutCubicFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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t = t * 2;
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if (t < 1.0)
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result = 0.5 * t * t * t;
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else {
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t = t - 2;
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result = 0.5 * t * t * t + 2;
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}
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}
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};
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/// Quart function
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struct InQuartFunction
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{
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inline static void getValueAt(float t, float& result) { result = t*t*t*t*t;}
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};
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struct OutQuartFunction
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{
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inline static void getValueAt(float t, float& result) { t = t - 1; result = - (t*t*t*t -1); }
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};
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struct InOutQuartFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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t = t * 2.0;
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if ( t < 1)
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result = 0.5*t*t*t*t;
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else
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{
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t -= 2.0;
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result = -0.5 * (t*t*t*t -2);
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}
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}
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};
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/// Elastic function
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struct OutElasticFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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result = pow(2.0f, -10.0f * t) * sinf((t - 0.3f / 4.0f) * (2.0f * osg::PI) / 0.3f) + 1.0f;
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}
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};
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struct InElasticFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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OutElasticFunction::getValueAt(1.0f - t, result);
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result = 1.0f - result;
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}
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};
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struct InOutElasticFunction
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{
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inline static void getValueAt(float t, float& result)
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{
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t *= 2.0f;
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if (t < 1.0f)
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{
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t -= 1.0f;
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result = -0.5 * (1.0f * pow(2.0f, 10.0f * t) * sinf((t - 0.45f / 4.0f) * (2.0f * osg::PI) / 0.45f));
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}
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else
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{
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t -= 1.0f;
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result = pow(2.0f, -10.0f * t) * sinf((t - 0.45f / 4.0f) * (2.0f * osg::PI) / 0.45f) * 0.5f + 1.0f;
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}
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}
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};
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class Motion : public osg::Referenced
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{
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public:
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typedef float value_type;
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enum TimeBehaviour
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{
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CLAMP,
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LOOP
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};
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Motion(float startValue = 0, float duration = 1, float changeValue = 1, TimeBehaviour tb = CLAMP) : _time(0), _startValue(startValue), _changeValue(changeValue), _duration(duration), _behaviour(tb) {}
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virtual ~Motion() {}
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void reset() { setTime(0);}
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float getTime() const { return _time; }
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float evaluateTime(float time) const
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{
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switch (_behaviour)
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{
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case CLAMP:
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if (time > _duration)
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time = _duration;
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else if (time < 0.0)
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time = 0.0;
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break;
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case LOOP:
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if (time <= 0)
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time = 0;
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else
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time = fmodf(time, _duration);
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break;
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}
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return time;
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}
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void update(float dt)
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{
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_time = evaluateTime(_time + dt);
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}
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void setTime(float time) { _time = evaluateTime(time);}
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void getValue(value_type& result) const { getValueAt(_time, result); }
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value_type getValue() const
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{
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value_type result;
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getValueAt(_time, result);
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return result;
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}
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void getValueAt(float time, value_type& result) const
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{
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getValueInNormalizedRange(evaluateTime(time)/_duration, result);
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result = result * _changeValue + _startValue;
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}
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value_type getValueAt(float time) const
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{
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value_type result;
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getValueAt(evaluateTime(time), result);
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return result;
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}
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virtual void getValueInNormalizedRange(float t, value_type& result) const = 0;
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float getDuration() const { return _duration;}
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protected:
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float _time;
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float _startValue;
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float _changeValue;
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float _duration;
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TimeBehaviour _behaviour;
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};
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template <typename T>
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struct MathMotionTemplate : public Motion
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{
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MathMotionTemplate(float startValue = 0, float duration = 1, float changeValue = 1, TimeBehaviour tb = CLAMP) : Motion(startValue, duration, changeValue, tb) {}
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virtual void getValueInNormalizedRange(float t, value_type& result) const { T::getValueAt(t, result); }
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};
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template <class T>
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struct SamplerMotionTemplate : public Motion
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{
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T _sampler;
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SamplerMotionTemplate(float startValue = 0, float duration = 1, float changeValue = 1, TimeBehaviour tb = CLAMP) : Motion(startValue, duration, changeValue, tb) {}
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T& getSampler() { return _sampler;}
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const T& getSampler() const { return _sampler;}
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virtual void getValueInNormalizedRange(float t, value_type& result) const
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{
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if (!_sampler.getKeyframeContainer())
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{
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result = 0;
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return;
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}
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float size = _sampler.getEndTime() - _sampler.getStartTime();
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t = t * size + _sampler.getStartTime();
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_sampler.getValueAt(t, result);
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}
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};
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struct CompositeMotion : public Motion
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{
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typedef std::vector<osg::ref_ptr<Motion> > MotionList;
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MotionList _motions;
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MotionList& getMotionList() { return _motions; }
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const MotionList& getMotionList() const { return _motions; }
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CompositeMotion(float startValue = 0, float duration = 1, float changeValue = 1, TimeBehaviour tb = CLAMP) : Motion(startValue, duration, changeValue, tb) {}
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virtual void getValueInNormalizedRange(float t, value_type& result) const
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{
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if (_motions.empty())
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{
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result = 0;
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osg::notify(osg::WARN) << "CompositeMotion::getValueInNormalizedRange no Motion in the CompositeMotion, add motion to have result" << std::endl;
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return;
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}
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for (MotionList::const_iterator it = _motions.begin(); it != _motions.end(); ++it)
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{
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const Motion* motion = static_cast<const Motion*>(it->get());
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float durationInRange = motion->getDuration() / getDuration();
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if (t < durationInRange)
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{
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float tInRange = t/durationInRange * motion->getDuration();
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motion->getValueAt( tInRange, result);
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return;
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} else
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t = t - durationInRange;
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}
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osg::notify(osg::WARN) << "CompositeMotion::getValueInNormalizedRange did find the value in range, something wrong" << std::endl;
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result = 0;
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}
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};
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// linear
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typedef MathMotionTemplate<LinearFunction > LinearMotion;
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// quad
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typedef MathMotionTemplate<OutQuadFunction > OutQuadMotion;
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typedef MathMotionTemplate<InQuadFunction> InQuadMotion;
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typedef MathMotionTemplate<InOutQuadFunction> InOutQuadMotion;
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// cubic
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typedef MathMotionTemplate<OutCubicFunction > OutCubicMotion;
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typedef MathMotionTemplate<InCubicFunction> InCubicMotion;
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typedef MathMotionTemplate<InOutCubicFunction> InOutCubicMotion;
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// quart
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typedef MathMotionTemplate<OutQuartFunction > OutQuartMotion;
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typedef MathMotionTemplate<InQuartFunction> InQuartMotion;
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typedef MathMotionTemplate<InOutQuartFunction> InOutQuartMotion;
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// bounce
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typedef MathMotionTemplate<OutBounceFunction > OutBounceMotion;
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typedef MathMotionTemplate<InBounceFunction> InBounceMotion;
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typedef MathMotionTemplate<InOutBounceFunction> InOutBounceMotion;
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// elastic
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typedef MathMotionTemplate<OutElasticFunction > OutElasticMotion;
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typedef MathMotionTemplate<InElasticFunction > InElasticMotion;
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typedef MathMotionTemplate<InOutElasticFunction > InOutElasticMotion;
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}
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#endif
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