forked from LeenkxTeam/Leenkx_Examples
47 lines
1.2 KiB
Haxe
47 lines
1.2 KiB
Haxe
package lnx;
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import iron.math.Vec4;
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import iron.math.Quat;
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import iron.object.BoneAnimation;
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import iron.math.Mat4;
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// Moving a bone - forward kinematics
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class MoveBoneFK extends iron.Trait {
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public function new() {
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super();
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notifyOnInit(function() {
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// Fetch armature animation
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var anim = cast(object.children[0].animation, BoneAnimation);
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// Fetch bone
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var bone = anim.getBone("mixamorig:RightLnx");
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// Manipulating bone in local space
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//var m = anim.getBoneMat(bone);
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// anim.notifyOnUpdate(function() {
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// var offset = new Quat().fromEuler(0, Math.sin(iron.system.Time.time()), 0);
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// m.applyQuat(offset);
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//});
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// Manipulating bone in world space
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anim.notifyOnUpdate(function() {
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// Get bone mat in world space
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var m = anim.getAbsWorldMat(bone);
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// Decompose transform
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var loc = new Vec4();
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var scl = new Vec4();
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var rot = new Quat();
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m.decompose(loc, rot, scl);
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// Apply rotation
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var offset = new Quat().fromEuler(Math.sin(iron.system.Time.time()), 0, 0);
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rot.multquats(offset, rot);
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// Compose world matrix
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m.compose(loc, rot, scl);
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// Set bone matrix from world matrix
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anim.setBoneMatFromWorldMat(m, bone);
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});
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});
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}
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}
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