RBD Point Object Problem

Forums Houdini Indie and Apprentice RBD Point Object Problem

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skywalker_ll: Member; 18 posts; Joined: Oct. 2014; Offline

July 20, 2015 11:41 a.m.

Hey Guys, I´m a beginner in Houdini Dynamics and I just found similar topics, that didn´t solve my problem.

I usw Houdini 14 and I scatter points across a a grid with Seed $F in order to use it as emitterpoints for RBD point object.
Problem is that it just creates Rbd geo (packed) at the first frame. Gives me a warning about the name attribute. And YES I´m fetching the points every frame ($F).

I would be very grateful, for a simple explanation/solution. Still having trouble to get the big picture.

Greetz, Luke

Attachments:
Fireballs_1.hip (356.8 KB)


tamte: Member; 8539 posts; Joined: July 2007; Offline

July 20, 2015 12:25 p.m.

if using packed primitives, don't use this technique as it will create new object for each frame and what you want is just append new packed objects (primitives) to current object
have a look at Help/ExampleFiles/EmittingObjects

Tomas Slancik
FX Supervisor
Method Studios, NY


skywalker_ll: Member; 18 posts; Joined: Oct. 2014; Offline

July 23, 2015 8:41 a.m.

Thx for your reply. I don´t know if we mean the same thing…

But I want new objects (instances) each frame, which refence to the source geometry.
Now its emitting at the first frame, but I want packed objects emitted every frame.

EDIT: To put it in a simple question: How do I constantly emit rbd packed prims?


tamte: Member; 8539 posts; Joined: July 2007; Offline

July 26, 2015 3:22 p.m.

not sure if you checked mentioned example, but it is doing exactly that, just one object every 10 frames
here is the same example just with emitting multiple objects per frame (and slightly adjusted name attrib to account for adding multiple objects)

Attachments:
emit_packed_objects.hip (270.4 KB)

Tomas Slancik
FX Supervisor
Method Studios, NY


skywalker_ll: Member; 18 posts; Joined: Oct. 2014; Offline

July 27, 2015 9:39 a.m.

Great Thanks a lot!!!!!!!!!!!


skywalker_ll: Member; 18 posts; Joined: Oct. 2014; Offline

July 27, 2015 11:40 a.m.

Damn, still have one problem. It should now emit one object per point every 25 frames, but it emits multiple overlaying objects.
Sry I´m really a beginner and that´s hopefully the last issue I´m having…

Attachments:
Fireballs_2.hip (437.8 KB)


skywalker_ll: Member; 18 posts; Joined: Oct. 2014; Offline

July 30, 2015 11:26 a.m.

anyone…


stovetop: Staff; 18 posts; Joined: July 2005; Offline

July 30, 2015 12:44 p.m.

Try changing your Creation Frame on the RBD Packed Object (Emitter) in DOPS from $F to just 1

rob stauffer


tamte: Member; 8539 posts; Joined: July 2007; Offline

July 30, 2015 3:07 p.m.

stovetop
Try changing your Creation Frame on the RBD Packed Object (Emitter) in DOPS from $F to just 1

yes, that should be 1
as well /obj/emitter/scatterPoints/ForceTotalCount set to 1

Tomas Slancik
FX Supervisor
Method Studios, NY


skywalker_ll: Member; 18 posts; Joined: Oct. 2014; Offline

Aug. 6, 2015 3:13 p.m.

Damn, completely forgot about that.

THANKS again! Really nice community here.

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