Introduction to Maya - Rendering in Arnold
This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i
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1
06-05-2006
, 05:59 PM
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Animating a car...
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2
06-05-2006
, 06:36 PM
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Create a function to rotate the tires fast, then have an if - then statement to revert them to normal rotation when the car has reached a certain point . .
"The Sage as an Astronomer: If you still see the stars as something above you, you lack the eye of knowledge." Friedrich Nietzsche
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06-05-2006
, 07:07 PM
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07-05-2006
, 01:38 AM
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but keyframing would work fine if the car is going kinda the same speed the entire time.
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07-05-2006
, 04:58 AM
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Vlad - Id prefer not to keyframe the rotation. I also noticed that the rotate Z field of the tires is oranged/pinked out. Will that throw off the rotation of the tire when the car is moving? Or could I just make it so that once the tires stop spinning as the car is sitting still, make them go back to 0 degrees, and it should pick up normally and rotate, right?
Matt - I already have it so that when the car moves, the tires rotate according to how far the car has traveled. I did it by using Set Driven Keys. I dont have to keyframe anything to get the tires rotating. Im trying to get the tires to rotate when the car is sitting still, without messing up the SDK.
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07-05-2006
, 12:27 PM
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Oh, and MEL is based off of C++ or Java, but VB would help you learn it (I really can't stand how MEL is formatted, language structure-wise. I much prefer c++)
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07-05-2006
, 05:51 PM
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08-05-2006
, 01:08 AM
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When you come over next time well test out some stuff. But im gunna go with vlad on this.
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08-05-2006
, 09:10 PM
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The bestway to do this would be to connect the translation calc to the wheel rotation via some utility nodes.
Use a condition node to allow option of different input/output conditions i.e set ouput to be color true if vehicle tx, tz is changing and output color false to be a fixed or adjustable value which can be set using a custom attriubute via a mulipy/divide node.
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11-05-2006
, 03:02 PM
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11-05-2006
, 05:38 PM
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I have attached a maya scene file with a simple vehicle rigged with a set up using utility nodes.
The rig is not completed but if you look in the hypergraph you should see how the nodes have been connected. If you want I can try and knock up a mel script to do something like this, but the translation/rotation has not been fully tested so I am not sure if it works in all directions as required. The sphere acts as a rig controller.
The way to do this is if you have an expression that works print it out and then use utility nodes to mimic the expressions formulas.