Adam Trachtenberg
Forum Replies Created
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Use the plugins that were installed with R16 in the Cinema R16>Exchange Plugins>aftereffects folder.
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Select your object in the timeline, or drag it in there if it isn’t in there already. With the object selected in the timeline, select Functions>Bake Object. Make sure Expressions is checked and click OK. That should do it.
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Your settings look okay to me too. Only thing I can think of is maybe a codec problem. I would try rendering to something else, like jpeg or tif sequence, just to rule it out.
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I’m sure there’s a mathy answer to your question, but since I’m not much for math I jiggered up a little rig with constraints that will do the job. What I did was use Xpresso to constrain a null (null.1) to the end of the arrow. Then I used a position constraint to constrain just the x and z position of another null (End) to null.1’s position. Then I created a third null (Start) at the same Y height as End and used an aim constraint to point Start at End. The H rotation of Start provides the 2D rotation of the arrow.
Hopefully it’s easier to understand from looking at the file: 8250_3dto2drotation.c4d.zip
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Before that I would try setting the Picture Viewer zoom level to 100%. Scaling in the picture viewer can produce what looks like aliasing when the rendered output is actually smooth.
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You can move the pivot point of an editable object by enabling axis modification mode. That’s the fourth icon from the top of the left-most tool bar.
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Here’s another example, this time using the position of animated nulls to move the 3D gradient: 8236_texturewipenulls.c4d.zip
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Another way you could try would be to animate the start/end parameters of a 3D gradient. It’s not that tricky as long as you’re okay doing it along one of the world axes. Can still be done if you want a more arbitrary path, but a little more involved.
In the example below I used a little Xpresso to help. Basically I just fed a number into the gradient x start position and then added 250 to that and fed that number into the end position. So moving the slider moves the gradient along World X.
Example file: 8235_texturewipe.c4d.zip
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Yep, it essentially maps the texture to a virtual sphere and then reflects it back on the object. Much faster than real reflections.
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I think you can build it just like you would a car. Simple example would be using hinge connectors to connect the wheels to the axles and then put the align-to-spline tags on the axles to animate the motion. Example file: 8225_carrig.c4d.zip