Autodesk Alias Studio Tutorial – Creating High Quality Surface Set



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I want to  build a high quality surface, namely a front wing/ fender with you, but as all surfaces on a car exterior have to relate in terms of position, tangency or curvature to their boundary surfaces, this means that to build a wing, we have first to build the front center section of the car, so I have spent a few hours doing just that.Here are a few pictures to show the development:

Front Centre Section created in preparation for the wing/ Fender modelling.

Arrow shows horrible cross section. Surface will have to be rebuilt

Arrow shows horrible cross section. Surface will have to be rebuilt

This is quite a good surface set, but I ‘ve had no time to light it better. At the moment my lighting is making a good surface set look like really poor! I’m going to have to find some time to properly light the scene.Surface set is good, but I need to learn how Alias lighting works quickly!

First Look At Surface of the hood top. Oh my God!

I have been trying to build this in between several other jobs and as you can see, I have a lot of problems here and the only thing to do is to delete the surfaces, improve the curves to obtain surface continuity where required and then build the surfaces again taking more care to match meeting surfaces. They should have the same construction at adjacent boundaries i.e. the same surface degree ( degree: 3 – 1, deg.5 – 1, .) and they should have matching surface isoparms, if I am forced to make the surface more pliable by adding 1 or 2 extra spans.Surface set all sorted and ready to renderCenter surface set looks good with Zebra Diagonstic shading appliedArrows show where surface defects are

Surface Quality with Diagnostic Shading Turned On.

Here I went back and broke the hood down into 3 more manageable surfaces. After I built them I re-invoked the Square surf. tool and going into Advanced setting, I used Explicit control to alter the degree of each square in both the U and V direction with the horizontal edges set to Curvature, until I reached an acceptable result. This is a simplified explanation of how to resolve the hood top surface construction geo.

Corrected Front Ceter Section Surface

Sorry! Still had no spare time to sort out the lightingt, but the surfaces are now looking healthier, ready to start building the fender/wing, to the surfaces established here. I want to  start building the fender as soon as I have some time.———–A few days laterAll the hard work worthwhile. Surfaces I can be proud of.If you are< fllowing this project, you may want to go off an work on another unrelated tutorial, until I am ready to prgress this fender further. I find if my students have a break from an intense model and go off and do something which offers other challenges, they learn more quickly, so having say an automotive project on the go along with a small but complex product design project is an effricient way to learn Alias.  One learns new techniques and new tools and can then come back to the bigger project better equiped to deal with its challenges.Corrected Surface________________________________________________________________
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