// rotate bone's y-axis with target.
AnimPose boneLookAt(const glm::vec3& target, const AnimPose& bone) {
glm::vec3 u, v, w;
generateBasisVectors(target - bone.trans(), bone.rot() * Vectors::UNIT_X, u, v, w);
glm::mat4 lookAt(glm::vec4(v, 0.0f),
glm::vec4(u, 0.0f),
// AJT: TODO REVISIT THIS, this could be -w.
glm::vec4(glm::normalize(glm::cross(v, u)), 0.0f),
glm::vec4(bone.trans(), 1.0f));
return AnimPose(lookAt);
}
// returns true if the given point lies inside of the k-dop, specified by shapeInfo & shapePose.
// if the given point does lie within the k-dop, it also returns the amount of displacement necessary to push that point outward
// such that it lies on the surface of the kdop.
bool findPointKDopDisplacement(const glm::vec3& point, const AnimPose& shapePose, const HFMJointShapeInfo& shapeInfo, glm::vec3& displacementOut) {
// transform point into local space of jointShape.
glm::vec3 localPoint = shapePose.inverse().xformPoint(point);
// Only works for 14-dop shape infos.
if (shapeInfo.dots.size() != DOP14_COUNT) {
return false;
}
glm::vec3 minDisplacement(FLT_MAX);
float minDisplacementLen = FLT_MAX;
glm::vec3 p = localPoint - shapeInfo.avgPoint;
float pLen = glm::length(p);
if (pLen > 0.0f) {
int slabCount = 0;
for (int i = 0; i < DOP14_COUNT; i++) {
float dot = glm::dot(p, DOP14_NORMALS[i]);
if (dot > 0.0f && dot < shapeInfo.dots[i]) {
slabCount++;
float distToPlane = pLen * (shapeInfo.dots[i] / dot);
float displacementLen = distToPlane - pLen;
// keep track of the smallest displacement
if (displacementLen < minDisplacementLen) {
minDisplacementLen = displacementLen;
minDisplacement = (p / pLen) * displacementLen;
}
}
}
if (slabCount == (DOP14_COUNT / 2) && minDisplacementLen != FLT_MAX) {
// we are within the k-dop so push the point along the minimum displacement found
displacementOut = shapePose.xformVectorFast(minDisplacement);
return true;
} else {
// point is outside of kdop
return false;
}
} else {
// point is directly on top of shapeInfo.avgPoint.
// push the point out along the x axis.
displacementOut = shapePose.xformVectorFast(shapeInfo.points[0]);
return true;
}
}
AnimPose AnimManipulator::computeRelativePoseFromJointVar(const AnimVariantMap& animVars, const JointVar& jointVar,
const AnimPose& defaultRelPose, const AnimPoseVec& underPoses) {
AnimPose defaultAbsPose = _skeleton->getAbsolutePose(jointVar.jointIndex, underPoses);
if (jointVar.type == JointVar::Type::AbsoluteRotation || jointVar.type == JointVar::Type::AbsolutePosition) {
if (jointVar.type == JointVar::Type::AbsoluteRotation) {
defaultAbsPose.rot = animVars.lookupRigToGeometry(jointVar.var, defaultAbsPose.rot);
} else if (jointVar.type == JointVar::Type::AbsolutePosition) {
defaultAbsPose.trans = animVars.lookupRigToGeometry(jointVar.var, defaultAbsPose.trans);
}
// because jointVar is absolute, we must use an absolute parent frame to convert into a relative pose.
AnimPose parentAbsPose = AnimPose::identity;
int parentIndex = _skeleton->getParentIndex(jointVar.jointIndex);
if (parentIndex >= 0) {
parentAbsPose = _skeleton->getAbsolutePose(parentIndex, underPoses);
}
// convert from absolute to relative
return parentAbsPose.inverse() * defaultAbsPose;
} else {
// override the default rel pose
AnimPose relPose = defaultRelPose;
if (jointVar.type == JointVar::Type::RelativeRotation) {
relPose.rot = animVars.lookupRigToGeometry(jointVar.var, defaultRelPose.rot);
} else if (jointVar.type == JointVar::Type::RelativePosition) {
relPose.trans = animVars.lookupRigToGeometry(jointVar.var, defaultRelPose.trans);
}
return relPose;
}
}
void AnimDebugDraw::update() {
render::ScenePointer scene = AbstractViewStateInterface::instance()->getMain3DScene();
if (!scene) {
return;
}
if (!render::Item::isValidID(_itemID)) {
return;
}
render::Transaction transaction;
transaction.updateItem<AnimDebugDrawData>(_itemID, [&](AnimDebugDrawData& data) {
const size_t VERTICES_PER_BONE = (6 + (NUM_CIRCLE_SLICES * 2) * 3);
const size_t VERTICES_PER_LINK = 8 * 2;
const size_t VERTICES_PER_RAY = 2;
const float BONE_RADIUS = 0.01f; // 1 cm
const float POSE_RADIUS = 0.1f; // 10 cm
// figure out how many verts we will need.
int numVerts = 0;
for (auto& iter : _absolutePoses) {
AnimSkeleton::ConstPointer& skeleton = std::get<0>(iter.second);
numVerts += skeleton->getNumJoints() * VERTICES_PER_BONE;
for (auto i = 0; i < skeleton->getNumJoints(); i++) {
auto parentIndex = skeleton->getParentIndex(i);
if (parentIndex >= 0) {
numVerts += VERTICES_PER_LINK;
}
}
}
// count marker verts from shared DebugDraw singleton
auto markerMap = DebugDraw::getInstance().getMarkerMap();
numVerts += (int)markerMap.size() * VERTICES_PER_BONE;
auto myAvatarMarkerMap = DebugDraw::getInstance().getMyAvatarMarkerMap();
numVerts += (int)myAvatarMarkerMap.size() * VERTICES_PER_BONE;
auto rays = DebugDraw::getInstance().getRays();
DebugDraw::getInstance().clearRays();
numVerts += (int)rays.size() * VERTICES_PER_RAY;
// allocate verts!
std::vector<AnimDebugDrawData::Vertex> vertices;
vertices.resize(numVerts);
//Vertex* verts = (Vertex*)data._vertexBuffer->editData();
AnimDebugDrawData::Vertex* v = nullptr;
if (numVerts) {
v = &vertices[0];
}
// draw absolute poses
for (auto& iter : _absolutePoses) {
AnimSkeleton::ConstPointer& skeleton = std::get<0>(iter.second);
AnimPoseVec& absPoses = std::get<1>(iter.second);
AnimPose rootPose = std::get<2>(iter.second);
glm::vec4 color = std::get<3>(iter.second);
for (int i = 0; i < skeleton->getNumJoints(); i++) {
const float radius = BONE_RADIUS / (absPoses[i].scale().x * rootPose.scale().x);
// draw bone
addBone(rootPose, absPoses[i], radius, color, v);
// draw link to parent
auto parentIndex = skeleton->getParentIndex(i);
if (parentIndex >= 0) {
assert(parentIndex < skeleton->getNumJoints());
addLink(rootPose, absPoses[i], absPoses[parentIndex], radius, color, v);
}
}
}
// draw markers from shared DebugDraw singleton
for (auto& iter : markerMap) {
glm::quat rot = std::get<0>(iter.second);
glm::vec3 pos = std::get<1>(iter.second);
glm::vec4 color = std::get<2>(iter.second);
const float radius = POSE_RADIUS;
addBone(AnimPose::identity, AnimPose(glm::vec3(1), rot, pos), radius, color, v);
}
AnimPose myAvatarPose(glm::vec3(1), DebugDraw::getInstance().getMyAvatarRot(), DebugDraw::getInstance().getMyAvatarPos());
for (auto& iter : myAvatarMarkerMap) {
glm::quat rot = std::get<0>(iter.second);
glm::vec3 pos = std::get<1>(iter.second);
glm::vec4 color = std::get<2>(iter.second);
const float radius = POSE_RADIUS;
addBone(myAvatarPose, AnimPose(glm::vec3(1), rot, pos), radius, color, v);
}
// draw rays from shared DebugDraw singleton
for (auto& iter : rays) {
addLine(std::get<0>(iter), std::get<1>(iter), std::get<2>(iter), v);
}
data._vertexBuffer->resize(sizeof(AnimDebugDrawData::Vertex) * numVerts);
data._vertexBuffer->setSubData<AnimDebugDrawData::Vertex>(0, vertices);
assert((!numVerts && !v) || (numVerts == (v - &vertices[0])));
render::Item::Bound theBound;
for (int i = 0; i < numVerts; i++) {
theBound += vertices[i].pos;
}
data._bound = theBound;
data._isVisible = (numVerts > 0);
data._indexBuffer->resize(sizeof(uint16_t) * numVerts);
for (int i = 0; i < numVerts; i++) {
data._indexBuffer->setSubData<uint16_t>(i, (uint16_t)i);;
}
});
scene->enqueueTransaction(transaction);
}
static void addBone(const AnimPose& rootPose, const AnimPose& pose, float radius, glm::vec4& vecColor, AnimDebugDrawData::Vertex*& v) {
const float XYZ_AXIS_LENGTH = radius * 4.0f;
const uint32_t color = toRGBA(vecColor);
AnimPose finalPose = rootPose * pose;
glm::vec3 base = rootPose * pose.trans();
glm::vec3 xRing[NUM_CIRCLE_SLICES + 1]; // one extra for last index.
glm::vec3 yRing[NUM_CIRCLE_SLICES + 1];
glm::vec3 zRing[NUM_CIRCLE_SLICES + 1];
const float dTheta = (2.0f * (float)M_PI) / NUM_CIRCLE_SLICES;
for (int i = 0; i < NUM_CIRCLE_SLICES + 1; i++) {
float rCosTheta = radius * cosf(dTheta * i);
float rSinTheta = radius * sinf(dTheta * i);
xRing[i] = finalPose * glm::vec3(0.0f, rCosTheta, rSinTheta);
yRing[i] = finalPose * glm::vec3(rCosTheta, 0.0f, rSinTheta);
zRing[i] = finalPose * glm::vec3(rCosTheta, rSinTheta, 0.0f);
}
// x-axis
v->pos = base;
v->rgba = red;
v++;
v->pos = finalPose * glm::vec3(XYZ_AXIS_LENGTH, 0.0f, 0.0f);
v->rgba = red;
v++;
// x-ring
for (int i = 0; i < NUM_CIRCLE_SLICES; i++) {
v->pos = xRing[i];
v->rgba = color;
v++;
v->pos = xRing[i + 1];
v->rgba = color;
v++;
}
// y-axis
v->pos = base;
v->rgba = green;
v++;
v->pos = finalPose * glm::vec3(0.0f, XYZ_AXIS_LENGTH, 0.0f);
v->rgba = green;
v++;
// y-ring
for (int i = 0; i < NUM_CIRCLE_SLICES; i++) {
v->pos = yRing[i];
v->rgba = color;
v++;
v->pos = yRing[i + 1];
v->rgba = color;
v++;
}
// z-axis
v->pos = base;
v->rgba = blue;
v++;
v->pos = finalPose * glm::vec3(0.0f, 0.0f, XYZ_AXIS_LENGTH);
v->rgba = blue;
v++;
// z-ring
for (int i = 0; i < NUM_CIRCLE_SLICES; i++) {
v->pos = zRing[i];
v->rgba = color;
v++;
v->pos = zRing[i + 1];
v->rgba = color;
v++;
}
}
