Make object visibility and instancing creation to be calculated via depsgraph #57

Merged
Bogdan Nagirniak merged 16 commits from BLEN-442 into hydra-render 2023-07-08 10:09:53 +02:00
3 changed files with 126 additions and 11 deletions
Showing only changes of commit 05baf7b646 - Show all commits

View File

@ -31,6 +31,7 @@ BlenderSceneDelegate::BlenderSceneDelegate(pxr::HdRenderIndex *parent_index,
Engine *engine)
: HdSceneDelegate(parent_index, delegate_id), engine(engine)
{
instancer_data_ = std::make_unique<InstancerData>(this, instancer_prim_id());
}
pxr::HdMeshTopology BlenderSceneDelegate::GetMeshTopology(pxr::SdfPath const &id)
@ -433,18 +434,19 @@ void BlenderSceneDelegate::check_updates()
void BlenderSceneDelegate::update_collection()
{
/* Add or update available objects */
Set<std::string> available_objects;
DEGObjectIterSettings settings = {0};
settings.depsgraph = depsgraph;
settings.flags = DEG_ITER_OBJECT_FLAG_LINKED_DIRECTLY | DEG_ITER_OBJECT_FLAG_LINKED_VIA_SET |
DEG_ITER_OBJECT_FLAG_VISIBLE;
DEG_ITER_OBJECT_FLAG_VISIBLE | DEG_ITER_OBJECT_FLAG_DUPLI;
DEGObjectIterData data = {0};
data.settings = &settings;
data.graph = settings.depsgraph;
data.flag = settings.flags;
instancer_data_->pre_update();
ITER_BEGIN (DEG_iterator_objects_begin,
DEG_iterator_objects_next,
DEG_iterator_objects_end,
@ -452,6 +454,11 @@ void BlenderSceneDelegate::update_collection()
Object *,
object)
{
if (data.dupli_object_current) {
instancer_data_->update_instance(data.dupli_parent, data.dupli_object_current);
continue;
}
if (!ObjectData::is_supported(object)) {
continue;
}
@ -477,14 +484,7 @@ void BlenderSceneDelegate::update_collection()
}
ITER_END;
if (!instancer_data_) {
instancer_data_ = std::make_unique<InstancerData>(this, instancer_prim_id());
instancer_data_->init();
instancer_data_->insert();
}
else {
instancer_data_->update();
}
instancer_data_->post_update();
/* Remove unused objects */
objects_.remove_if([&](auto item) {

View File

@ -51,12 +51,16 @@ void InstancerData::remove()
for (auto &m_inst : mesh_instances_.values()) {
m_inst.data->remove();
}
if (!mesh_instances_.is_empty()) {
scene_delegate_->GetRenderIndex().RemoveInstancer(prim_id);
}
mesh_instances_.clear();
for (auto &l_inst : light_instances_.values()) {
l_inst.transforms.clear();
update_light_instance(l_inst);
}
light_instances_.clear();
}
void InstancerData::update()
@ -104,6 +108,94 @@ bool InstancerData::update_visibility()
return ret;
}
void InstancerData::pre_update()
{
mesh_transforms_.clear();
for (auto &m_inst : mesh_instances_.values()) {
m_inst.indices.clear();
}
for (auto &l_inst : light_instances_.values()) {
l_inst.transforms.clear();
}
}
void InstancerData::update_instance(Object *parent_ob, DupliObject *dupli)
{
if (!ObjectData::is_visible(scene_delegate_, parent_ob, OB_VISIBLE_INSTANCES)) {
return;
}
Object *ob = dupli->ob;
if (!is_instance_supported(ob)) {
return;
}
if (!scene_delegate_->shading_settings.use_scene_lights && ob->type == OB_LAMP) {
return;
}
pxr::SdfPath p_id = object_prim_id(ob);
if (ob->type == OB_LAMP) {
LightInstance *inst = light_instance(p_id);
if (!inst) {
inst = &light_instances_.lookup_or_add_default(p_id);
inst->data = std::make_unique<LightData>(scene_delegate_, ob, p_id);
inst->data->init();
}
ID_LOG(2, "Light %s %d", inst->data->id->name, inst->transforms.size());
inst->transforms.push_back(gf_matrix_from_transform(dupli->mat));
}
else {
MeshInstance *inst = mesh_instance(p_id);
if (!inst) {
inst = &mesh_instances_.lookup_or_add_default(p_id);
inst->data = std::make_unique<MeshData>(scene_delegate_, ob, p_id);
inst->data->init();
inst->data->insert();
}
else {
inst->data->update();
}
ID_LOG(2, "Mesh %s %d", inst->data->id->name, mesh_transforms_.size());
inst->indices.push_back(mesh_transforms_.size());
mesh_transforms_.push_back(gf_matrix_from_transform(dupli->mat));
}
}
void InstancerData::post_update()
{
/* Remove mesh intances without indices */
mesh_instances_.remove_if([&](auto item) {
bool res = item.value.indices.empty();
if (res) {
item.value.data->remove();
}
return res;
});
pxr::HdRenderIndex &index = scene_delegate_->GetRenderIndex();
if (mesh_instances_.is_empty()) {
if (index.HasInstancer(prim_id)) {
index.RemoveInstancer(prim_id);
ID_LOG(1, "Remove instancer");
}
}
else {
if (index.HasInstancer(prim_id)) {
index.GetChangeTracker().MarkInstancerDirty(prim_id, pxr::HdChangeTracker::AllDirty);
ID_LOG(1, "Update instancer");
}
else {
index.InsertInstancer(scene_delegate_, prim_id);
ID_LOG(1, "Insert instancer");
}
}
/* Update light intances and remove instances without transforms */
for (auto &l_inst : light_instances_.values()) {
update_light_instance(l_inst);
}
light_instances_.remove_if([&](auto item) { return item.value.transforms.empty(); });
}
pxr::GfMatrix4d InstancerData::get_transform(pxr::SdfPath const &id) const
{
LightInstance *l_inst = light_instance(id);
@ -260,6 +352,7 @@ void InstancerData::write_instances()
}
ITER_END;
/* Remove mesh intances without indices */
mesh_instances_.remove_if([&](auto item) {
bool res = item.value.indices.empty();
@ -269,6 +362,24 @@ void InstancerData::write_instances()
return res;
});
pxr::HdRenderIndex &index = scene_delegate_->GetRenderIndex();
if (mesh_instances_.is_empty()) {
if (index.HasInstancer(prim_id)) {
index.RemoveInstancer(prim_id);
ID_LOG(1, "Remove instancer");
}
}
else {
if (index.HasInstancer(prim_id)) {
index.GetChangeTracker().MarkInstancerDirty(prim_id, pxr::HdChangeTracker::AllDirty);
ID_LOG(1, "Update instancer");
}
else {
index.InsertInstancer(scene_delegate_, prim_id);
ID_LOG(1, "Insert instancer");
}
}
/* Update light intances and remove instances without transforms */
for (auto &l_inst : light_instances_.values()) {
update_light_instance(l_inst);

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@ -36,6 +36,10 @@ class InstancerData : public ObjectData {
pxr::VtValue get_data(pxr::TfToken const &key) const override;
bool update_visibility() override;
void pre_update();
void update_instance(Object *parent_ob, DupliObject *dupli);
void post_update();
pxr::GfMatrix4d get_transform(pxr::SdfPath const &id) const;
pxr::HdPrimvarDescriptorVector primvar_descriptors(pxr::HdInterpolation interpolation) const;
pxr::VtIntArray indices(pxr::SdfPath const &id) const;