haselkern/Minecraft-ArmorStand
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Fixed Rotations

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Minecraft uses world rotation, three.js uses local rotation. I was
unable to find a way to convert the rotations, until now.
This commit is contained in:
Lars Martens 2016-01-25 20:11:16 +01:00
parent 6bb0885d54
commit 5c466e71d2
2 changed files with 25 additions and 7 deletions
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1
index.htm
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@ -28,7 +28,6 @@
<div id="card"> <div id="card">
<h1>MINECRAFT ARMOR STAND</h1> <h1>MINECRAFT ARMOR STAND</h1>
<b>Please note:</b> some rotation values do not work correctly.
<div class="padding"> <div class="padding">
<center> <center>
<a href="https://github.com/haselkern/Minecraft-ArmorStand" target="_blank"><img src="images/github.png" alt="GitHub" title="GitHub" /></a> <a href="https://github.com/haselkern/Minecraft-ArmorStand" target="_blank"><img src="images/github.png" alt="GitHub" title="GitHub" /></a>

31
js/main.js
View file

@ -358,12 +358,12 @@ function updateUI(){
// Rotate 3D Stuff // Rotate 3D Stuff
// y and z rotation needs to be inverted // y and z rotation needs to be inverted
mBody.rotation.set(body.x * DEG2RAD, -body.y * DEG2RAD, -body.z * DEG2RAD); setRotation(mBody, body);
mHead.rotation.set(head.x * DEG2RAD, -head.y * DEG2RAD, -head.z * DEG2RAD); setRotation(mHead, head);
mLegLeft.rotation.set(leftLeg.x * DEG2RAD, -leftLeg.y * DEG2RAD, -leftLeg.z * DEG2RAD); setRotation(mLegLeft, leftLeg);
mLegRight.rotation.set(rightLeg.x * DEG2RAD, -rightLeg.y * DEG2RAD, -rightLeg.z * DEG2RAD); setRotation(mLegRight, rightLeg);
mArmLeft.rotation.set(leftArm.x * DEG2RAD, -leftArm.y * DEG2RAD, -leftArm.z * DEG2RAD); setRotation(mArmLeft, leftArm);
mArmRight.rotation.set(rightArm.x * DEG2RAD, -rightArm.y * DEG2RAD, -rightArm.z * DEG2RAD); setRotation(mArmRight, rightArm);
armorstand.rotation.y = -rotation * DEG2RAD; armorstand.rotation.y = -rotation * DEG2RAD;
// Scale model, depending on small variable // Scale model, depending on small variable
@ -624,3 +624,22 @@ function getLeatherColorString(element, condition){
} }
return ""; return "";
} }
// Rotate three.js mesh to fit the minecraft rotation
function setRotation(mesh, rotation){
rotateAroundWorldAxis(mesh, new THREE.Vector3(1,0,0), rotation.x * DEG2RAD, true);
rotateAroundWorldAxis(mesh, new THREE.Vector3(0,1,0), -rotation.y * DEG2RAD, false);
rotateAroundWorldAxis(mesh, new THREE.Vector3(0,0,1), -rotation.z * DEG2RAD, false);
}
// From here: http://stackoverflow.com/a/11124197/1456971
var rotWorldMatrix;
// Rotate an object around an arbitrary axis in world space
function rotateAroundWorldAxis(object, axis, radians, reset) {
rotWorldMatrix = new THREE.Matrix4();
rotWorldMatrix.makeRotationAxis(axis.normalize(), radians);
if(!reset)
rotWorldMatrix.multiply(object.matrix); // pre-multiply
object.matrix = rotWorldMatrix;
object.rotation.setFromRotationMatrix(object.matrix);
}