saca Posted October 15, 2019 Share Posted October 15, 2019 hi controlling particles by POP_VPO, subtruct v1 v2 multiply with float input vector into "v" geometry_vop_global. i want to accelerate the particles speed. multiply 0.1, the particles will be slow, multiply 1.0, the particles will be speedup little bit. multiply 10000, the particles will be speedup only a little. whats wrong? i hope linear acceleration effect to particles. particles has limitation speed any parameters? POP speed limit does not used. thanks. Quote Link to comment Share on other sites More sharing options...
Feather Posted October 17, 2019 Share Posted October 17, 2019 Sounds like you have conflicting nodes. Are any force nodes like "POP_WIND" or something like that following this POP_VOP? If so try pulling these nodes out of the chain, isolate your POP VOP to confirm its the only node acting on your particles and see if the issue persists. Quote Link to comment Share on other sites More sharing options...
saca Posted October 18, 2019 Author Share Posted October 18, 2019 thanks! i understood the cause for this problem with your advice. i just use "pop_wind" in my network. i have applyed group option into "POP_Wind",only affect first stream. [^stream_frst] i made simple example fix this problem. POP_VOP_Acceleration_v001.001.hipnc 1 Quote Link to comment Share on other sites More sharing options...
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