I was practicing a smoke sim with pighead and realized that different location of dopnetwork node causes different results.
These are object level nodes. As you can see, there's one dopnet in object level.
This is inside of the the_sim node. There's another dopnet.
Inside of the dopnets. Both of dopnets have exactly the same setup except the density SOP path of smokeobject node. The dopnet in the object level has his path from null1 node(copy input checked only) in the the_sim network. The other one in the geometry level has it from the vdbfrompolygon node. The results were different like following pictures.
from the dopnet in the object level.
from the dopent in the geometry level.
the sim itself works exactly the same way. But two smokes for each dopnet look so different… the first one had very satisfying nice smoke while the other had awful and too blank smoke. Is that simply because I must use dopnetwork in the object level in this case, or is there something I lost? I thought it would have the same results because fracturing sim worked fine with geometry level dopnetowrk.
PS. I did some tests and started thinking that lack of lights could be causing the blank smoke but why wouldn't it get the light effect just for being in the geometry level?
