void CubeMeshProxyGeometry::process() {
tgtAssert(inport_.getData(), "no input volume");
// adapt clipping plane properties on volume change
if (inport_.hasChanged()) {
adjustClipPropertiesRanges();
}
const VolumeHandleBase* inputVolume = inport_.getData();
tgt::vec3 volumeSize = inputVolume->getCubeSize();
// vertex and tex coords of bounding box without clipping
tgt::vec3 coordLlf = inputVolume->getLLF();
tgt::vec3 coordUrb = inputVolume->getURB();
const tgt::vec3 noClippingTexLlf(0, 0, 0);
const tgt::vec3 noClippingTexUrb(1, 1, 1);
tgt::vec3 texLlf;
tgt::vec3 texUrb;
if (enableClipping_.get()) {
tgt::ivec3 orgDims = inputVolume->getOriginalDimensions();
// adjust vertex and tex coords to clipping
texLlf = tgt::vec3(
clipRight_.get() / static_cast<float>(orgDims.x),
clipFront_.get() / static_cast<float>(orgDims.y),
clipBottom_.get() / static_cast<float>(orgDims.z));
texUrb = tgt::vec3(
(clipLeft_.get()+1.0f) / static_cast<float>(orgDims.x),
(clipBack_.get()+1.0f) / static_cast<float>(orgDims.y),
(clipTop_.get()+1.0f) / static_cast<float>(orgDims.z));
// calculate original offset and clip volume
tgt::vec3 orgDimSpac = static_cast<tgt::vec3>(orgDims)*inputVolume->getSpacing();
tgt::vec3 orgOffset = orgDimSpac / tgt::max(orgDimSpac);
tgt::vec3 coordLlfOrg = (texLlf*(2.f*orgOffset))-orgOffset;
tgt::vec3 coordUrbOrg = (texUrb*(2.f*orgOffset))-orgOffset;
tgt::vec3 coordSize = coordUrb-coordLlf;
// calculate correct volume coordinates [-1, 1]
coordLlf = tgt::min(tgt::max(coordLlfOrg, coordLlf), coordUrb);
coordUrb = tgt::max(tgt::min(coordUrbOrg, coordUrb), coordLlf);
// calculate correct texture coordinates [0, 1]
texLlf = (coordLlf-inputVolume->getLLF())/(coordSize);
texUrb = tgt::vec3(1.f)-(inputVolume->getURB()-coordUrb)/(coordSize);
}
else {
texLlf = noClippingTexLlf;
texUrb = noClippingTexUrb;
}
// create output mesh
MeshListGeometry* geometry = new MeshListGeometry();
geometry->addMesh(MeshGeometry::createCube(coordLlf, coordUrb, texLlf, texUrb, texLlf, texUrb));
geometry->transform(inputVolume->getPhysicalToWorldMatrix());
outport_.setData(geometry);
}
void CubeMeshProxyGeometry::process() {
tgtAssert(inport_.getData()->getVolume(), "no input volume");
// adapt clipping plane properties on volume change
if (inport_.hasChanged()) {
adjustClipPropertiesRanges();
}
Volume* inputVolume = inport_.getData()->getVolume();
tgt::vec3 volumeSize = inputVolume->getCubeSize();
tgt::ivec3 numSlices = inputVolume->getDimensions();
// vertex and tex coords of bounding box without clipping
tgt::vec3 coordLlf = inputVolume->getLLF();
tgt::vec3 coordUrb = inputVolume->getURB();
const tgt::vec3 noClippingTexLlf(0, 0, 0);
const tgt::vec3 noClippingTexUrb(1, 1, 1);
tgt::vec3 texLlf;
tgt::vec3 texUrb;
if (enableClipping_.get()) {
// adjust vertex and tex coords to clipping
texLlf = tgt::vec3(
clipRight_.get() / static_cast<float>(numSlices.x),
clipFront_.get() / static_cast<float>(numSlices.y),
clipBottom_.get() / static_cast<float>(numSlices.z));
texUrb = tgt::vec3(
(clipLeft_.get()+1.0f) / static_cast<float>(numSlices.x),
(clipBack_.get()+1.0f) / static_cast<float>(numSlices.y),
(clipTop_.get()+1.0f) / static_cast<float>(numSlices.z));
coordLlf -= volumeSize * (noClippingTexLlf - texLlf);
coordUrb -= volumeSize * (noClippingTexUrb - texUrb);
}
else {
texLlf = noClippingTexLlf;
texUrb = noClippingTexUrb;
}
// create output mesh
geometry_->clear();
geometry_->addMesh(MeshGeometry::createCube(coordLlf, coordUrb, texLlf, texUrb, texLlf, texUrb));
geometry_->transform(inputVolume->getTransformation());
outport_.setData(geometry_);
}
