Object *BlenderSync::sync_object(BL::Depsgraph &b_depsgraph,
BL::ViewLayer &b_view_layer,
BL::DepsgraphObjectInstance &b_instance,
float motion_time,
bool show_self,
bool show_particles,
BlenderObjectCulling &culling,
bool *use_portal)
{
const bool is_instance = b_instance.is_instance();
BL::Object b_ob = b_instance.object();
BL::Object b_parent = is_instance ? b_instance.parent() : b_instance.object();
BL::Object b_ob_instance = is_instance ? b_instance.instance_object() : b_ob;
const bool motion = motion_time != 0.0f;
/*const*/ Transform tfm = get_transform(b_ob.matrix_world());
int *persistent_id = NULL;
BL::Array<int, OBJECT_PERSISTENT_ID_SIZE> persistent_id_array;
if (is_instance) {
persistent_id_array = b_instance.persistent_id();
persistent_id = persistent_id_array.data;
}
/* light is handled separately */
if (!motion && object_is_light(b_ob)) {
/* TODO: don't use lights for excluded layers used as mask layer,
* when dynamic overrides are back. */
#if 0
if (!((layer_flag & view_layer.holdout_layer) && (layer_flag & view_layer.exclude_layer)))
#endif
{
sync_light(b_parent,
persistent_id,
b_ob,
b_ob_instance,
is_instance ? b_instance.random_id() : 0,
tfm,
use_portal);
}
return NULL;
}
/* only interested in object that we can create meshes from */
if (!object_is_mesh(b_ob)) {
return NULL;
}
/* Perform object culling. */
if (culling.test(scene, b_ob, tfm)) {
return NULL;
}
/* Visibility flags for both parent and child. */
PointerRNA cobject = RNA_pointer_get(&b_ob.ptr, "cycles");
bool use_holdout = get_boolean(cobject, "is_holdout") ||
b_parent.holdout_get(PointerRNA_NULL, b_view_layer);
uint visibility = object_ray_visibility(b_ob) & PATH_RAY_ALL_VISIBILITY;
if (b_parent.ptr.data != b_ob.ptr.data) {
visibility &= object_ray_visibility(b_parent);
}
/* TODO: make holdout objects on excluded layer invisible for non-camera rays. */
#if 0
if (use_holdout && (layer_flag & view_layer.exclude_layer)) {
visibility &= ~(PATH_RAY_ALL_VISIBILITY - PATH_RAY_CAMERA);
}
#endif
/* Clear camera visibility for indirect only objects. */
bool use_indirect_only = b_parent.indirect_only_get(PointerRNA_NULL, b_view_layer);
if (use_indirect_only) {
visibility &= ~PATH_RAY_CAMERA;
}
/* Don't export completely invisible objects. */
if (visibility == 0) {
return NULL;
}
/* key to lookup object */
ObjectKey key(b_parent, persistent_id, b_ob_instance);
Object *object;
/* motion vector case */
if (motion) {
object = object_map.find(key);
if (object && object->use_motion()) {
/* Set transform at matching motion time step. */
int time_index = object->motion_step(motion_time);
if (time_index >= 0) {
object->motion[time_index] = tfm;
}
/* mesh deformation */
if (object->mesh)
sync_mesh_motion(b_depsgraph, b_ob, object, motion_time);
}
return object;
}
/* test if we need to sync */
bool object_updated = false;
if (object_map.sync(&object, b_ob, b_parent, key))
object_updated = true;
/* mesh sync */
object->mesh = sync_mesh(
b_depsgraph, b_ob, b_ob_instance, object_updated, show_self, show_particles);
/* special case not tracked by object update flags */
/* holdout */
if (use_holdout != object->use_holdout) {
object->use_holdout = use_holdout;
scene->object_manager->tag_update(scene);
object_updated = true;
}
if (visibility != object->visibility) {
object->visibility = visibility;
object_updated = true;
}
bool is_shadow_catcher = get_boolean(cobject, "is_shadow_catcher");
if (is_shadow_catcher != object->is_shadow_catcher) {
object->is_shadow_catcher = is_shadow_catcher;
object_updated = true;
}
/* sync the asset name for Cryptomatte */
BL::Object parent = b_ob.parent();
ustring parent_name;
if (parent) {
while (parent.parent()) {
parent = parent.parent();
}
parent_name = parent.name();
}
else {
parent_name = b_ob.name();
}
if (object->asset_name != parent_name) {
object->asset_name = parent_name;
object_updated = true;
}
/* object sync
* transform comparison should not be needed, but duplis don't work perfect
* in the depsgraph and may not signal changes, so this is a workaround */
if (object_updated || (object->mesh && object->mesh->need_update) || tfm != object->tfm) {
object->name = b_ob.name().c_str();
object->pass_id = b_ob.pass_index();
object->tfm = tfm;
object->motion.clear();
/* motion blur */
Scene::MotionType need_motion = scene->need_motion();
if (need_motion != Scene::MOTION_NONE && object->mesh) {
Mesh *mesh = object->mesh;
mesh->use_motion_blur = false;
mesh->motion_steps = 0;
uint motion_steps;
if (need_motion == Scene::MOTION_BLUR) {
motion_steps = object_motion_steps(b_parent, b_ob);
mesh->motion_steps = motion_steps;
if (motion_steps && object_use_deform_motion(b_parent, b_ob)) {
mesh->use_motion_blur = true;
}
}
else {
motion_steps = 3;
mesh->motion_steps = motion_steps;
}
object->motion.clear();
object->motion.resize(motion_steps, transform_empty());
if (motion_steps) {
object->motion[motion_steps / 2] = tfm;
for (size_t step = 0; step < motion_steps; step++) {
motion_times.insert(object->motion_time(step));
}
}
}
/* dupli texture coordinates and random_id */
if (is_instance) {
object->dupli_generated = 0.5f * get_float3(b_instance.orco()) -
make_float3(0.5f, 0.5f, 0.5f);
object->dupli_uv = get_float2(b_instance.uv());
object->random_id = b_instance.random_id();
}
else {
object->dupli_generated = make_float3(0.0f, 0.0f, 0.0f);
object->dupli_uv = make_float2(0.0f, 0.0f);
object->random_id = hash_int_2d(hash_string(object->name.c_str()), 0);
}
object->tag_update(scene);
}
if (is_instance) {
/* Sync possible particle data. */
sync_dupli_particle(b_parent, b_instance, object);
}
return object;
}
void BlenderSync::sync_light(BL::Object& b_parent,
int persistent_id[OBJECT_PERSISTENT_ID_SIZE],
BL::Object& b_ob,
BL::DupliObject& b_dupli_ob,
Transform& tfm,
bool *use_portal)
{
/* test if we need to sync */
Light *light;
ObjectKey key(b_parent, persistent_id, b_ob);
if(!light_map.sync(&light, b_ob, b_parent, key)) {
if(light->is_portal)
*use_portal = true;
return;
}
BL::Lamp b_lamp(b_ob.data());
/* type */
switch(b_lamp.type()) {
case BL::Lamp::type_POINT: {
BL::PointLamp b_point_lamp(b_lamp);
light->size = b_point_lamp.shadow_soft_size();
light->type = LIGHT_POINT;
break;
}
case BL::Lamp::type_SPOT: {
BL::SpotLamp b_spot_lamp(b_lamp);
light->size = b_spot_lamp.shadow_soft_size();
light->type = LIGHT_SPOT;
light->spot_angle = b_spot_lamp.spot_size();
light->spot_smooth = b_spot_lamp.spot_blend();
break;
}
case BL::Lamp::type_HEMI: {
light->type = LIGHT_DISTANT;
light->size = 0.0f;
break;
}
case BL::Lamp::type_SUN: {
BL::SunLamp b_sun_lamp(b_lamp);
light->size = b_sun_lamp.shadow_soft_size();
light->type = LIGHT_DISTANT;
break;
}
case BL::Lamp::type_AREA: {
BL::AreaLamp b_area_lamp(b_lamp);
light->size = 1.0f;
light->axisu = transform_get_column(&tfm, 0);
light->axisv = transform_get_column(&tfm, 1);
light->sizeu = b_area_lamp.size();
if(b_area_lamp.shape() == BL::AreaLamp::shape_RECTANGLE)
light->sizev = b_area_lamp.size_y();
else
light->sizev = light->sizeu;
light->type = LIGHT_AREA;
break;
}
}
/* location and (inverted!) direction */
light->co = transform_get_column(&tfm, 3);
light->dir = -transform_get_column(&tfm, 2);
light->tfm = tfm;
/* shader */
vector<Shader*> used_shaders;
find_shader(b_lamp, used_shaders, scene->default_light);
light->shader = used_shaders[0];
/* shadow */
PointerRNA cscene = RNA_pointer_get(&b_scene.ptr, "cycles");
PointerRNA clamp = RNA_pointer_get(&b_lamp.ptr, "cycles");
light->cast_shadow = get_boolean(clamp, "cast_shadow");
light->use_mis = get_boolean(clamp, "use_multiple_importance_sampling");
int samples = get_int(clamp, "samples");
if(get_boolean(cscene, "use_square_samples"))
light->samples = samples * samples;
else
light->samples = samples;
light->max_bounces = get_int(clamp, "max_bounces");
if(b_dupli_ob) {
light->random_id = b_dupli_ob.random_id();
}
else {
light->random_id = hash_int_2d(hash_string(b_ob.name().c_str()), 0);
}
if(light->type == LIGHT_AREA)
light->is_portal = get_boolean(clamp, "is_portal");
else
light->is_portal = false;
if(light->is_portal)
*use_portal = true;
/* visibility */
uint visibility = object_ray_visibility(b_ob);
light->use_diffuse = (visibility & PATH_RAY_DIFFUSE) != 0;
light->use_glossy = (visibility & PATH_RAY_GLOSSY) != 0;
light->use_transmission = (visibility & PATH_RAY_TRANSMIT) != 0;
light->use_scatter = (visibility & PATH_RAY_VOLUME_SCATTER) != 0;
/* tag */
light->tag_update(scene);
}
Object *BlenderSync::sync_object(BL::Object b_parent, int persistent_id[OBJECT_PERSISTENT_ID_SIZE], BL::DupliObject b_dupli_ob, Transform& tfm, uint layer_flag, int motion, bool hide_tris)
{
BL::Object b_ob = (b_dupli_ob ? b_dupli_ob.object() : b_parent);
/* light is handled separately */
if(object_is_light(b_ob)) {
/* don't use lamps for excluded layers used as mask layer */
if(!motion && !((layer_flag & render_layer.holdout_layer) && (layer_flag & render_layer.exclude_layer)))
sync_light(b_parent, persistent_id, b_ob, tfm);
return NULL;
}
/* only interested in object that we can create meshes from */
if(!object_is_mesh(b_ob))
return NULL;
/* key to lookup object */
ObjectKey key(b_parent, persistent_id, b_ob);
Object *object;
/* motion vector case */
if(motion) {
object = object_map.find(key);
if(object) {
if(tfm != object->tfm) {
if(motion == -1)
object->motion.pre = tfm;
else
object->motion.post = tfm;
object->use_motion = true;
}
/* mesh deformation blur not supported yet */
if(!scene->integrator->motion_blur)
sync_mesh_motion(b_ob, object->mesh, motion);
}
return object;
}
/* test if we need to sync */
bool object_updated = false;
if(object_map.sync(&object, b_ob, b_parent, key))
object_updated = true;
bool use_holdout = (layer_flag & render_layer.holdout_layer) != 0;
/* mesh sync */
object->mesh = sync_mesh(b_ob, object_updated, hide_tris);
/* special case not tracked by object update flags */
/* holdout */
if(use_holdout != object->use_holdout) {
object->use_holdout = use_holdout;
scene->object_manager->tag_update(scene);
object_updated = true;
}
/* visibility flags for both parent and child */
uint visibility = object_ray_visibility(b_ob) & PATH_RAY_ALL_VISIBILITY;
if(b_parent.ptr.data != b_ob.ptr.data) {
visibility &= object_ray_visibility(b_parent);
object->random_id ^= hash_int(hash_string(b_parent.name().c_str()));
}
/* make holdout objects on excluded layer invisible for non-camera rays */
if(use_holdout && (layer_flag & render_layer.exclude_layer))
visibility &= ~(PATH_RAY_ALL_VISIBILITY - PATH_RAY_CAMERA);
/* camera flag is not actually used, instead is tested against render layer
* flags */
if(visibility & PATH_RAY_CAMERA) {
visibility |= layer_flag << PATH_RAY_LAYER_SHIFT;
visibility &= ~PATH_RAY_CAMERA;
}
if(visibility != object->visibility) {
object->visibility = visibility;
object_updated = true;
}
/* object sync
* transform comparison should not be needed, but duplis don't work perfect
* in the depsgraph and may not signal changes, so this is a workaround */
if(object_updated || (object->mesh && object->mesh->need_update) || tfm != object->tfm) {
object->name = b_ob.name().c_str();
object->pass_id = b_ob.pass_index();
object->tfm = tfm;
object->motion.pre = tfm;
object->motion.post = tfm;
object->use_motion = false;
/* random number */
object->random_id = hash_string(object->name.c_str());
if(persistent_id) {
for(int i = 0; i < OBJECT_PERSISTENT_ID_SIZE; i++)
object->random_id = hash_int_2d(object->random_id, persistent_id[i]);
}
else
object->random_id = hash_int_2d(object->random_id, 0);
if(b_parent.ptr.data != b_ob.ptr.data)
object->random_id ^= hash_int(hash_string(b_parent.name().c_str()));
/* dupli texture coordinates */
if (b_dupli_ob) {
object->dupli_generated = 0.5f*get_float3(b_dupli_ob.orco()) - make_float3(0.5f, 0.5f, 0.5f);
object->dupli_uv = get_float2(b_dupli_ob.uv());
}
else {
object->dupli_generated = make_float3(0.0f, 0.0f, 0.0f);
object->dupli_uv = make_float2(0.0f, 0.0f);
}
object->tag_update(scene);
}
return object;
}
