mantra: Singular Matrix warning (particles)

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Hi guys!
I got a simple particle system with instances, particle rotation and
scaling and get folloing message when rendering with mantra:

mantra: Singular matrix detected “/obj/plateobj/particle_emitter1:20183”, object ignored

Do you have an idea what produces this message? What exactly does that
mean?
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could you upload scene file ?
Albert
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sure…

Attachments:
particleTest_v01.hipnc (144.0 KB)

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A singular matrix implies you have a zero scale. Most likely pscale is being set to 0 by some expression. (Ramping up or down in size over time.) If this is the case don't scale it completely to 0.
if(coffees<2,round(float),float)
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Ahh, that makes sense! The particles I use become smaller until they die and have a scaling of 0 at the end.
I'll try to fix that!

seb.
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