Autodesk Alias Studio Building Car Tutorial Door Handle Depression

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I’ve built a beautiful door and it seems a shame to cut into it,

but that’s the nature of car design mostly this would be detailed enough to be sent off an milled out in clay for further Styling shows and further development and in fact often even the shut lines are not required, as if any changes are required to the body side or hood top, the first thing the clay modellers will do is fill in the shut lines. However if you’re modelling for a later stage of the design process, details like door handles may be required

Today I am going to show you one method for modelling a depression into the door,

as part of the door handle set up. If you are building a complete exterior the chances are that details like door handle depressions would be added for aesthetics and exact dimensions wouldn’t be required. The accurate modelling would be done at a later stage on a panel by panel basis. So our task is to get the periphery right and not worry about tight dimensions beyond that. Usually it would be the clay dept. who put the fillets around our depression, but today I’ll show you a way of doing that job too.

Select just the surfs. that you need and make everything else invisible (hide unselected)

Get right up close

Place a circle in the middle of the depression

and using Non-Prop scaling and then Move Cv match your curve to the outline on the canvas plane

Attach 2 deg 5 curves across the axes

Helper Curves

In the Top view pull out the first curve to meet the Stylists dimensions approx. Then improve the accuracy with the Move CV tool.Now do the same on the second crv. in the back view

Using your circular curve trim discard and create the hole

Place a rebuild crv. on the trim edge (set to reduce spans)

I’m pushing my luck a bit here using only 15 or so CV’s. You could use 20 to be safe>Object Edit>Detach the rebuild crv in four corners to create 4 curves for the operation of the Square Surf. tool

Build a square surf.

I’ve made mine 5,5,3,3 to keep it flexible enough to allow me to do some serious pulling on the internal CV’s

>Object Edit>Insert and insert an extra 2 rows of Cv’s as close to the boundaries as possible

This is to ensure that we don’t loose GO once we start radically yanking at the internal CV’s

In the Control Panel I have added an extra Cv in one direction,

as I want to pull from the center of the depressionYou may want to use less spans, that’s OK but you need to end up with a central CV

You can see how I have set up the Proportional Modification Control to best deform the surface into a soap dish depression

My graphic shows Move Mode as XYZ, but actually I used NUV as we are in local geo.This tools requires an ocean of practise if you want to be able to use it quickly and efficiently

In the Back view pull out the central Cv until the surf at that point meets the helper crv.

Top View: Adjust your amount of in/out pull

to the left and right it’s obvious that the dish is not the same profile as the helper crvs, so pull the CV’s Move CV with the appropriate axes restrained until you get a good fit. This is really hard at first, but with prctice you get good at it

Red lines are pointing to the helper crvs.

It’s absolutely vital to maintain GO (position at the surf. boundaries)

If you don’t have GO then try to recover with the Align tool, but you may have to delete the surf. and start again

OK here I’m pulling the last 3 rows of CV’s so that they appear underneath the locators.

I’m doing this because if I don’t I wont havea good angle of intersection for building a fillet
This is what we’ve achieved so far and this is good enough to go to be milled in clay or polyester

Tubular Flange Control

I’ve run a tubular surf all the way around, but where my trim edge is fragmented I am going to show you how to repair the C-O-S, because you need to know how to tweak them. It’s a big part of Alias Studio Modelling.

In real life I don’t have time to do this extra work,

so I would un-trim the aperture and recover the unbroken C-O-S that we started out with. I would then run the Tubular Flangeraround that and then Intersect it with both the depression and the door skin and then trim and delete the center surf. again

I repaired my C-O-S as follows:

Detach tool to get rid of the broken bitsJoin up the ends with deg. 5 crvs>Object Edit>Align Tool to align the 8 deg 5 crvs with the C-O-SProject normal set to 0.001Delete the 8 deg 5 crvs_______________________

OK: back to the standard work flow!

Next I ran the Free Form Fillet control around. If you have good clean continuous C-O-S then choose the Single Surface optionBecause I did all this repair work on my C-O-S, I used Multiple SurfacesI could explain all the ins and outs to you, but the best way to learn how these Alias Tools function, is by trying both workflows

Once I’d built the fillets I manually trimmed. I think it’s looking good. I hope you agree

This is the bit that all Alias Studio Modellers love the most, crank the Rendering Controls up to Max and

then sit back and enjoy your own work

Hmmmm! Needs a lick of paint

Here it is with Shader Anti Alias on High and Showroom Diagnostics turned up high

It’s what we live for!

Enjoy

graham

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