Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-21 06:44:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

compute correct bounding shape dimensions

Browse source
This commit is contained in:
Andrew Meadows 2015-03-12 16:34:47 -07:00
parent 2fad4153a9
commit 1f3a267b16
1 changed files with 31 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

62
interface/src/avatar/SkeletonModel.cpp
View file

@ -659,57 +659,57 @@ void SkeletonModel::buildShapes() {
void SkeletonModel::computeBoundingShape(const FBXGeometry& geometry) {
// compute default joint transforms
int numStates = _jointStates.size();
assert(numStates == _shapes.size());
QVector<glm::mat4> transforms;
transforms.fill(glm::mat4(), numStates);
// compute the default transforms
for (int i = 0; i < numStates; i++) {
JointState& state = _jointStates[i];
const FBXJoint& joint = state.getFBXJoint();
int parentIndex = joint.parentIndex;
if (parentIndex == -1) {
transforms[i] = _jointStates[i].getTransform();
continue;
}
glm::quat modifiedRotation = joint.preRotation * joint.rotation * joint.postRotation;
transforms[i] = transforms[parentIndex] * glm::translate(joint.translation)
* joint.preTransform * glm::mat4_cast(modifiedRotation) * joint.postTransform;
// TODO: Andrew to harvest transforms here to move shapes to correct positions so that
// bounding capsule calculations below are correct.
}
// compute bounding box that encloses all shapes
Extents totalExtents;
totalExtents.reset();
totalExtents.addPoint(glm::vec3(0.0f));
for (int i = 0; i < _shapes.size(); i++) {
for (int i = 0; i < numStates; i++) {
// compute the default transform of this joint
JointState& state = _jointStates[i];
const FBXJoint& joint = state.getFBXJoint();
int parentIndex = joint.parentIndex;
if (parentIndex == -1) {
transforms[i] = _jointStates[i].getTransform();
} else {
glm::quat modifiedRotation = joint.preRotation * joint.rotation * joint.postRotation;
transforms[i] = transforms[parentIndex] * glm::translate(joint.translation)
* joint.preTransform * glm::mat4_cast(modifiedRotation) * joint.postTransform;
}
Shape* shape = _shapes[i];
if (!shape) {
continue;
}
// Each joint with a shape contributes to the totalExtents: a box
// that contains the sphere centered at the end of the joint with radius of the bone.
// TODO: skip hand and arm shapes for bounding box calculation
Extents shapeExtents;
shapeExtents.reset();
glm::vec3 localPosition = shape->getTranslation();
glm::vec3 jointPosition = extractTranslation(transforms[i]);
int type = shape->getType();
float radius = 0.0f;
if (type == CAPSULE_SHAPE) {
// add the two furthest surface points of the capsule
CapsuleShape* capsule = static_cast<CapsuleShape*>(shape);
glm::vec3 axis;
capsule->computeNormalizedAxis(axis);
float radius = capsule->getRadius();
float halfHeight = capsule->getHalfHeight();
axis = halfHeight * axis + glm::vec3(radius);
shapeExtents.addPoint(localPosition + axis);
shapeExtents.addPoint(localPosition - axis);
glm::vec3 axis(radius);
Extents shapeExtents;
shapeExtents.reset();
shapeExtents.addPoint(jointPosition + axis);
shapeExtents.addPoint(jointPosition - axis);
totalExtents.addExtents(shapeExtents);
} else if (type == SPHERE_SHAPE) {
float radius = shape->getBoundingRadius();
glm::vec3 axis = glm::vec3(radius);
shapeExtents.addPoint(localPosition + axis);
shapeExtents.addPoint(localPosition - axis);
glm::vec3 axis(radius);
Extents shapeExtents;
shapeExtents.reset();
shapeExtents.addPoint(jointPosition + axis);
shapeExtents.addPoint(jointPosition - axis);
totalExtents.addExtents(shapeExtents);
}
}