Rendering NURBS Geometry in Alias

Simple Powertracer Rendering with no Image Mapping

Here I’ve Increased the Value of Self-Reflections for the Rim

It’s still quite plain though!

(anti-aliasing = 16-25.Tessellation and quality =max)

Alias Powertracer Rendering

It’s very fashionable at the moment to render NURBS geom. (sometimes exporting in a different formant, such as STEP) for presentation using Autodesk Showcase whilst many Alias modellers still prefer to render in Alias

Is one application better than the other?

Please email me with your opinion and comments. I would also very much welcome any examples of your own work that has been rendered together with the settings you used. The best examples I will publish here

I personally make my own shaders for Alias , but there are times when I wish I could use the standard shaders from Showcase eg: Chrome, Tyre Tread.

If any one out there has a good example of any of these shaders for use in Alias, please send it/them to me by email

The above img. and the 2 below are rendered in Alias

I have exagerated the amount of reflectivity for the image mapping

On the above img. we can see that the mapped reflexion is the same for each spoke,

so not really photo-realistic

A good Alias renderer can set-up a scene like this

very quickly and it is quite distinct from what is achievable with Showcase, it’s perhaps a lot quicker in Alias, to set-up an environment and to addd props, although personally I find generating shaddows the way I require them difficult

The same rim, but this time I have combined 2 images in the mapping process; 1= Exhibition Hall, 2= Cloudy Sky. I have used jpegs and not Alias textures

Autodesk Showcase

I haven’t put up a Showcase rendering of this wheel, because one of my top students Karrick is doing that as part of his project and I am going to publish his work soon.
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