void Graphic31::scale (float sx, float sy, float cx, float cy) {
float ncx, ncy;
if (sx != 1.0 || sy != 1.0) {
if (_t == nil) {
_t = new Transformer;
}
Transformer parents;
parentXform(parents);
parents.InvTransform(cx, cy, ncx, ncy);
if (ncx != 0 || ncy != 0) {
_t->translate(-ncx, -ncy);
_t->scale(sx, sy);
_t->translate(ncx, ncy);
} else {
_t->scale(sx, sy);
}
}
}
void Graphic::Scale (float sx, float sy, float cx, float cy) {
float ncx, ncy;
if (sx != 1 || sy != 1) {
if (_t == nil) {
_t = new Transformer;
}
Transformer parents;
parentXform(parents);
parents.InvTransform(cx, cy, ncx, ncy);
if (ncx != 0 || ncy != 0) {
_t->Translate(-ncx, -ncy);
_t->Scale(sx, sy);
_t->Translate(ncx, ncy);
} else {
_t->Scale(sx, sy);
}
uncacheParents();
}
}
void Graphic31::rotate (float angle, float cx, float cy) {
float mag = (angle < 0) ? -angle : angle;
float ncx, ncy;
if ((mag - int(mag)) != 0 || int(mag)%360 != 0) {
if (_t == nil) {
_t = new Transformer;
}
Transformer parents;
parentXform(parents);
parents.InvTransform(cx, cy, ncx, ncy);
if (ncx != 0 || ncy != 0) {
_t->translate(-ncx, -ncy);
_t->rotate(angle);
_t->translate(ncx, ncy);
} else {
_t->rotate(angle);
}
}
}
AtNode *createInstanceNode(nodeData &nodata, userData * ud, int i)
{
Alembic::AbcGeom::IPoints typedObject(ud->gIObjects[i].abc, Alembic::Abc::kWrapExisting);
instanceCloudInfo * info = ud->gIObjects[i].instanceCloud;
// check that we have the masternode
size_t id = (size_t)ud->gIObjects[i].ID;
size_t instanceID = (size_t)ud->gIObjects[i].instanceID;
if(instanceID >= info->groupInfos.size())
{
AiMsgError("[ExocortexAlembicArnold] Instance '%s.%d' has an invalid instanceID . Aborting.",ud->gIObjects[i].abc.getFullName().c_str(),(int)id);
return NULL;
}
size_t groupID = (size_t)ud->gIObjects[i].instanceGroupID;
if(groupID >= info->groupInfos[instanceID].identifiers.size())
{
AiMsgError("[ExocortexAlembicArnold] Instance '%s.%d' has an invalid instanceGroupID. Aborting.",ud->gIObjects[i].abc.getFullName().c_str(),(int)id);
return NULL;
}
instanceGroupInfo * group = &info->groupInfos[instanceID];
// get the right centroidTime
float centroidTime = ud->gCentroidTime;
if(info->time.size() > 0)
{
centroidTime = info->time[0]->get()[id < info->time[0]->size() ? id : info->time[0]->size() - 1];
if(info->time.size() > 1)
centroidTime = (1.0f - info->timeAlpha) * centroidTime + info->timeAlpha * info->time[1]->get()[id < info->time[1]->size() ? id : info->time[1]->size() - 1];
centroidTime = roundCentroid(centroidTime);
}
std::map<float,AtNode*>::iterator it = group->nodes[groupID].find(centroidTime);
if(it == group->nodes[groupID].end())
{
AiMsgError("[ExocortexAlembicArnold] Cannot find masterNode '%s' for centroidTime '%f'. Aborting.",group->identifiers[groupID].c_str(),centroidTime);
return NULL;
}
AtNode *usedMasterNode = it->second;
AtNode *shapeNode = AiNode("ginstance");
// setup name, id and the master node
AiNodeSetStr(shapeNode, "name", getNameFromIdentifier(ud->gIObjects[i].abc.getFullName(),ud->gIObjects[i].ID,(long)groupID).c_str());
AiNodeSetInt(shapeNode, "id", ud->gIObjects[i].instanceID);
AiNodeSetPtr(shapeNode, "node", usedMasterNode);
// declare color on the ginstance
if(info->color.size() > 0 && AiNodeDeclare(shapeNode, "Color", "constant RGBA"))
{
Alembic::Abc::C4f color = info->color[0]->get()[id < info->color[0]->size() ? id : info->color[0]->size() - 1];
AiNodeSetRGBA(shapeNode, "Color", color.r, color.g, color.b, color.a);
}
// now let's take care of the transform
AtArray * matrices = AiArrayAllocate(1,(AtInt)ud->gMbKeys.size(),AI_TYPE_MATRIX);
for(size_t j=0;j<ud->gMbKeys.size(); ++j)
{
SampleInfo sampleInfo = getSampleInfo(
ud->gMbKeys[j],
typedObject.getSchema().getTimeSampling(),
typedObject.getSchema().getNumSamples()
);
Alembic::Abc::M44f matrixAbc;
matrixAbc.makeIdentity();
const size_t floorIndex = j << 1;
const size_t ceilIndex = floorIndex + 1;
// apply translation
if(info->pos[floorIndex]->size() == info->pos[ceilIndex]->size())
{
matrixAbc.setTranslation(float(1.0 - sampleInfo.alpha) * info->pos[floorIndex]->get()[id < info->pos[floorIndex]->size() ? id : info->pos[floorIndex]->size() - 1] +
float(sampleInfo.alpha) * info->pos[ceilIndex]->get()[id < info->pos[ceilIndex]->size() ? id : info->pos[ceilIndex]->size() - 1]);
}
else
{
const float timeAlpha = getTimeOffsetFromObject( typedObject, sampleInfo );
matrixAbc.setTranslation(info->pos[floorIndex]->get()[id < info->pos[floorIndex]->size() ? id : info->pos[floorIndex]->size() - 1] +
info->vel[floorIndex]->get()[id < info->vel[floorIndex]->size() ? id : info->vel[floorIndex]->size() - 1] * timeAlpha);
}
// now take care of rotation
if(info->rot.size() == ud->gMbKeys.size())
{
Alembic::Abc::Quatf rotAbc = info->rot[j]->get()[id < info->rot[j]->size() ? id : info->rot[j]->size() - 1];
if(info->ang.size() == ud->gMbKeys.size() && sampleInfo.alpha > 0.0)
{
Alembic::Abc::Quatf angAbc = info->ang[j]->get()[id < info->ang[j]->size() ? id : info->ang[j]->size() -1] * (float)sampleInfo.alpha;
if(angAbc.axis().length2() != 0.0f && angAbc.r != 0.0f)
{
rotAbc = angAbc * rotAbc;
rotAbc.normalize();
}
}
Alembic::Abc::M44f matrixAbcRot;
matrixAbcRot.setAxisAngle(rotAbc.axis(),rotAbc.angle());
matrixAbc = matrixAbcRot * matrixAbc;
}
// and finally scaling
if(info->scale.size() == ud->gMbKeys.size() * 2)
{
const Alembic::Abc::V3f scalingAbc = info->scale[floorIndex]->get()[id < info->scale[floorIndex]->size() ? id : info->scale[floorIndex]->size() - 1] *
info->width[floorIndex]->get()[id < info->width[floorIndex]->size() ? id : info->width[floorIndex]->size() - 1] * float(1.0 - sampleInfo.alpha) +
info->scale[ceilIndex]->get()[id < info->scale[ceilIndex]->size() ? id : info->scale[ceilIndex]->size() - 1] *
info->width[ceilIndex]->get()[id < info->width[ceilIndex]->size() ? id : info->width[ceilIndex]->size() - 1] * float(sampleInfo.alpha);
matrixAbc.scale(scalingAbc);
}
else
{
const float width = info->width[floorIndex]->get()[id < info->width[floorIndex]->size() ? id : info->width[floorIndex]->size() - 1] * float(1.0 - sampleInfo.alpha) +
info->width[ceilIndex]->get()[id < info->width[ceilIndex]->size() ? id : info->width[ceilIndex]->size() - 1] * float(sampleInfo.alpha);
matrixAbc.scale(Alembic::Abc::V3f(width,width,width));
}
// if we have offset matrices
if(group->parents.size() > groupID && group->matrices.size() > groupID)
{
if(group->objects[groupID].valid() && group->parents[groupID].valid())
{
// we have a matrix map and a parent.
// now we need to check if we already exported the matrices
std::map<float,std::vector<Alembic::Abc::M44f> >::iterator it;
std::vector<Alembic::Abc::M44f> offsets;
it = group->matrices[groupID].find(centroidTime);
if(it == group->matrices[groupID].end())
{
std::vector<float> samples(ud->gMbKeys.size());
offsets.resize(ud->gMbKeys.size());
for(AtInt sampleIndex=0;sampleIndex<(AtInt)ud->gMbKeys.size(); ++sampleIndex)
{
offsets[sampleIndex].makeIdentity();
// centralize the time once more
samples[sampleIndex] = centroidTime + ud->gMbKeys[sampleIndex] - ud->gCentroidTime;
}
// if the transform differs, we need to compute the offset matrices
// get the parent, which should be a transform
Alembic::Abc::IObject parent = group->parents[groupID];
Alembic::Abc::IObject xform = group->objects[groupID].getParent();
while(Alembic::AbcGeom::IXform::matches(xform.getMetaData()) && xform.getFullName() != parent.getFullName())
{
// cast to a xform
Alembic::AbcGeom::IXform parentXform(xform,Alembic::Abc::kWrapExisting);
if(parentXform.getSchema().getNumSamples() == 0)
break;
// loop over all samples
for(size_t sampleIndex=0;sampleIndex<ud->gMbKeys.size(); ++sampleIndex)
{
SampleInfo sampleInfo = getSampleInfo(
samples[sampleIndex],
parentXform.getSchema().getTimeSampling(),
parentXform.getSchema().getNumSamples()
);
// get the data and blend it if necessary
Alembic::AbcGeom::XformSample sample;
parentXform.getSchema().get(sample,sampleInfo.floorIndex);
Alembic::Abc::M44f abcMatrix;
Alembic::Abc::M44d abcMatrixd = sample.getMatrix();
for(int x=0;x<4;x++)
for(int y=0;y<4;y++)
abcMatrix[x][y] = (float)abcMatrixd[x][y];
if(sampleInfo.alpha >= sampleTolerance)
{
parentXform.getSchema().get(sample,sampleInfo.ceilIndex);
Alembic::Abc::M44d ceilAbcMatrixd = sample.getMatrix();
Alembic::Abc::M44f ceilAbcMatrix;
for(int x=0;x<4;x++)
for(int y=0;y<4;y++)
ceilAbcMatrix[x][y] = (float)ceilAbcMatrixd[x][y];
abcMatrix = float(1.0 - sampleInfo.alpha) * abcMatrix + float(sampleInfo.alpha) * ceilAbcMatrix;
}
offsets[sampleIndex] = abcMatrix * offsets[sampleIndex];
}
// go upwards
xform = xform.getParent();
}
group->matrices[groupID].insert(std::pair<float,std::vector<Alembic::Abc::M44f> >(centroidTime,offsets));
}
else
offsets = it->second;
// this means we have the right amount of matrices to blend against
if(offsets.size() > j)
matrixAbc = offsets[j] * matrixAbc;
}
}
// store it to the array
AiArraySetMtx(matrices,(AtULong)j,matrixAbc.x);
}
AiNodeSetArray(shapeNode,"matrix",matrices);
AiNodeSetBool(shapeNode, "inherit_xform", FALSE);
return shapeNode;
}
