My student’s Audi A5 Coupe is progressing
Pictured below is an Audi A5 Sportback built by one of my students who is now a Digital Sculptor for GM.
Full HD video, just click the picture below
I am now putting some of my tutorials on YouTube, so whilst you’re there you may wish to check them out. There’s a full tutorial on how to create a Ball Corner to Class A Surfacing, Catia V5 spec.
For student’s who have the objective of finding a CAD job in the near future, I still teach One to One students and all of these students get Automotive Modeling or Design/Modeling jobs, so it’s a great investment to make.
Many of my students make it to the top and succeed in becoming pro. Alias Digital Modelers. The hourly rate is very high and there are vacancies in UK. France, Germany, USA, Brazil etc.
The level of design of Audis is very sophisticated
and it is impossible to make a model that accurately captures the full level of the styling, without having a physical reference.
This is how an Audi AG. Alias model would build it.
He/she would also have to have regular sessions with the Stylist, both sitting at the work station. In these daily or twice daily sessions the Stylist would explain exactly what should be happening to various complex surface forms e.g. around the highly detailed front end: grilles, spoiler and lights. Also the exact form of the “C” pillar and blend to the shoulder.In addition to the stylist input, the Alias Modeller would have a clay model to refer to and he would look at the model, make sketches, take templates to get the cross section of the shoulder etc.He/she would spend a LOT of time studying the clay model.
Simply put this info is not on the Canvases and even photos. don’t shown the subtlety of the surfaces.
TIP: When modelling the cockpit sides and establishing the inner shoulder line:
Make a really accurate side glass (Be very careful to get the vert. and horiz. curvatures spot on. On the A5 the side glass accelerates inwards towards the C pillar. Don’t miss this subtlety.)Create the side glass in line with the sheet metal. NOW you can treat the side glass as though it were part of the body and build to it.When you have finished building the entire cockpit, including the C pillar and blend to shoulder, you can then Offset the Side Glass inwards by 5 – 10mm to the correct position for the glass.
This model has reached the stage where it has all the main surfs. established, but without the detail. This stage of modelling is referred to as a Slab Model and is sometimes required to reverse model back into a 1:5 or 1:1 Clay or Hard model. This level of Alias modelling would be used by a lot of manufacturers. However for a prestige car a lot more detail would have to be modelled before the file could be transmitted.
The side glass and rear Glass have been pushed in “Offset” by 10 mm, this saves the physical modellers a lot of unnecessary work.
More work has been done on the Rear Apron. Most manufacturers see this as just a piece of bent metal, but Audi started to input design into this component back in 2000/2, with the advent of the Audi All-road. A strong Audi styling feature is the panel around the twin exhausts tail pipes and the seductive form of the tail pipes themselves. When you are driving behind a top of the range Audi, you’re aware, that it’s a piece of dynamic sculpture, a lot more than just a car!
At the top end of the price range the Audi has a lot of architecture around the rear apron and exhaust tail pipes. Every part of this car gets aesthetic consideration. Also the rear apron and exhaust panel are ver aerodynamic.
This aluminium panel covers the otherwise unsightly exhaust pipes, but the tail pipes get the design treatment
To model the G3 blend which Audi require, between rear end sheet metal and bumper, all the relevant panels have been assigned to a single dedicated layer. This allows the modeller to work in an uncluttered environment. Also as success is reached at each stage of modelling the rear end surfs, the wire is “saved as” with an updated suffix, then the modeller continues to work on the NEW file. Personally, if I really mess up, I go back to an earlier save and export/import the replacement surf. I need.
OK! the problem here is that there is a BIG elegant double inflexion crv. at the Y=O, but it has to fade to the normal bodyside curvature at the corner of the car. HOW TO: Set a const.pl. in world geom. at Y=O and then align a blend curve to the plane. Using the blend crv. manipulator set to G2 (CV ON and Always use a curv. comb). Used G2 for the bumper and G3 for the upper blend and finally, build a square to form the surface. There is a complete step by step tutorial on building an A5 available on my website:
In this pic. look at the surface conflict between spoiler and rear end sheet metal. The student had to trim it out and build a free form blend. The double curvature at the top of the bumper has worked out well. It has been kept sharp, but the real car has a softer curvature beneath the rear lamp you can see a tangent break. If there is no parting line going in there, a transitional blend surf. will need to be created.
A lovely shot of the C pillar. A very complex piece of modelling on the A5. There are no “make your life easy” tangent breaks/parting lines or appliques to hide lack of G3. It’s an Alias nightmare, but it’ll be in my tutorial. If you look carefully, you can see that the glass is all set in “Offset” 10 mm. Without the offset it would be impossible to resolve the C pillar modelling problem
Once again the A5 uses a really tricky set of surfaces for both fenders. There are n o helpers, like parting lines or features to break up the problem. You are in the world of seamless G3 curvature. The first time I built the side of the fender with, just 7 squares 5,5,1,1,. Having built onto a deg. 3 curve matrix, using direct memory, I was able to get good curvature by pulling the CV’s of the crvs. using Move CV, set to Step size = 0.001 XYZ. However as good isn’t good enough for Audi, I went on to build Free form Blends at several surf. boundaries in order to achieve an either higher standard. There are still some surfacing problems to iron out on this student’s model though
The rear end is now nearing completion. There are areas where the surfs. can be improved. The next A5 this student builds she’ll know where the really difficult problems lay and be able to create really good curves to build her surfs. from
Alias Studio Parting LinePictured above is a 3 mm parting line. That’s the root width. Measured across the opposing points of tangency the overall width = 7 mm.This would be the spec. on an Audi, but some low priced vehicles have much wider and less consistent parting lines. Putting in the parting lines on a model is not at all easy and requires a lot of practice and experience. I always consider where the parting lines will be when I am planing out patch layouts at the early stage of the model. In the case above I joined my vertical surface boundaries on the center line of the sheet metal spot weld joint.
Rear Bumper and double curvature blend surfaces – The Alias Studio Curvature Evaluation tool is invaluable when we need to see exactly what our surfs. are doing. Where they are good and where they need some intensive care. Here the line points to an orange area where the double blend surface washes out into the body side. This is a problem, as where this surf meets the body side it must have lost all its double crv feature. Some careful CV tweaking is required
Rear Shoulder and C pillar blend. Curvature Evaluation tool shows us clearly how the highlights will run along the shoulder.The shoulder is a Secondary surfaces and thus we must make sure that its curves are perfect before building. If the curves are only 95% correct, then the chances of getting good highlights without time consuming direct modelling, has already been lost. The blends however are tertiary surfs. and thus can be deleted and replaced by new surfs
I am pleased with the way the highlights are running,
but if I am going to be honest, I can also see that the far corner of the shoulder has been affected by a small problem with the 3 curves accelerating too much at their ends. You can see the dark area at the corner, which is showing the defect. These type of problems MUST be spotted early on, before any dependant (child) surfs are built on, thus compounding the error. She corrected this by editing the end of the curve
Enjoy your Alias
To Learn Alias Automotive to Industry Entry level has been made easier.
For student’s who have the objective of finding a CAD job in the near future, I still teach One to One students and all of these students get Automotive Modeling or Design/Modeling jobs, so it’s a great investment to make. The hourly rate is very high and there are vacancies in UK. France, Germany, Sweden, Spain, USA, Brazil etc. I can only take a maximum of 5-7 students at any one time. I teach all levels right up to Post Graduates. I have never had a Private student fail to get an Alias Automotive job (Companies include Ferrari, GM, Lotus, Opel, Audi Seat etc. ). If you wish to apply for a place, please email me with all your details.
Why not visit my website and take a look for your self?
Over 100 videos on many, many aspects of Learning Pro. Alias
I show you how to build a Complete Audi A5 Sportback (ext.) . Over 50 Videos on that alone !
Info. on Courses:
6 Months website access to all website based video tutorials, 167 Euros (215 USD equivalent Sept. 2012)
167 Euros (215 USD equivalent Sept. 2012) per month. You get your .wire reviewed by me every 15 days and you will receive : feedback, instruction, tips and advice from me personally. Access to all videos including my ” Private Student Training Videos”. You will build at least 3 complete automotive exteriors. The course also includes an intensive Reverse Engineering section, which required by most employers.
“#3 Full Pro. “Elite” Course”.
Fast Track Full Pro. “One to One” Course with weekly reviews and coaching 200-250 Euros (USD. 260-320 approx. Sept. 2012) per month. One to One Private tuition. You will receive specific geometry and meshes and modeling from me personally where required, to help you to complete your exteriors quickly to an Industry entry level standard. This means a bigger investment, but once in an Alias modeling job you will get back what you invested many times over and be able to work anywhere in the world
NB: Typically students pay 50% of the cost of the “Elite” course by monthly installments settling the balance over time, once they have an Alias Automotive contract.
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