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Cycles: Implement preliminary test for volume stack update from SSS

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This adds an AABB collision check for objects with volumes and if there's a
collision detected then the object will have SD_OBJECT_INTERSECTS_VOLUME flag.

This solves a speed regression introduced by the fix for T39823 by skipping
volume stack update in cases no volumes intersects the current SSS object.
This commit is contained in:
Sergey Sharybin
2014-10-03 10:52:04 +02:00
parent b86f199a98
commit a654512356
5 changed files with 52 additions and 9 deletions
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13
intern/cycles/render/object.cpp
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@@ -75,8 +75,14 @@ void Object::compute_bounds(bool motion_blur)
bounds.grow(mbounds.transformed(&ttfm));
}
}
else
bounds = mbounds.transformed(&tfm);
else {
if(mesh->transform_applied) {
bounds = mbounds;
}
else {
bounds = mbounds.transformed(&tfm);
}
}
}
void Object::apply_transform(bool apply_to_motion)
@@ -410,9 +416,6 @@ void ObjectManager::device_update(Device *device, DeviceScene *dscene, Scene *sc
progress.set_status("Updating Objects", "Applying Static Transformations");
apply_static_transforms(dscene, scene, object_flag, progress);
}
/* allocate object flag */
device->tex_alloc("__object_flag", dscene->object_flag);
}
void ObjectManager::device_free(Device *device, DeviceScene *dscene)