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Particles cannot be rendered by default, and they always need an at least one object attached (see → "Particle Rendering"). Currently it is not possible to render particle instances with These instances support motion blur.
Rigid and Elastic
Both deformer types do not support motion blur at the moment (fix is underway)Motion blur with these deformer requires cached geometry with "Point Level Animation" (PLA). Take a look at the → "Caching Rigids and Elastics" page for a workflow description.
Thinking Particles
RealFlow | Cinema 4D's particles can be turned into → Thinking Particles under Fluid > Particles. These These converted particles contain the original velocity information for motion blur effects:
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