Adam Trachtenberg
Forum Replies Created
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What you want to do is emit the particles on the first frame only (24 particles total) and then trace those particles.
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The problem is that there’s nothing in your scene to be reflected. Create a sky object and put some kind of texture on it (preferably HDRI) so there’s something for the reflections to pick up.
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Since you’re connecting the particles and the tracer spline will represent the stream, you need to cut the particle count WAY down.
Are you using a standard emitter or thinking particles?
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Set the tracer object’s tracing mode to “connect all objects”.
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You need to go into the extrude properties, caps tab, and set the caps to use quadrangles and regular grid. The splines themselves may need to be subdivided (or use knife tool), too, if there aren’t enough points to allow smooth deformation.
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Can you explain what you mean when you say that the sweep nurbs approach doesn’t seem very “clean”? It should work fine, though you may have to set your spline types a different interpolation, like natural, adaptive, or subdivided.
Otherwise, if you have Sketch & Toon that may be the way to go. It’s a bit complicated but it can render splines without adding geometry.
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Okay, gotcha. The way I would generally go about this would be to render out a shadow pass and then multiply that over the background. But since you want the alpha the easiest way to do it is to use the free shadow catcher plugin: https://www.thepixellab.net/cinema-4d-free-shadow-catcher-plugin
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You mean you want to isolate the plane with an alpha, or the shadow?
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It looks like you need to increase the ray depth in render options.
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Do you have the tracer above the deformer in the object manager? If not give that a try. Sounds like it could be an order of execution issue. If that doesn’t work I would try a mograph spline referencing the tracer as the falloff source.