Kevin De Smet – Power Tip: Surface Curvature Continuity

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A lot of beginners in the realm of Alias tend to get enslaved to the boundary continuity locators,

and will enforce continuity along all edges when building surfaces. Hoping to see those locators turn green. And when they do, your surfaces have a good flow… don’t they?

Well they don’t. Necessarily.

Just like putting tangent fillets on every sharp edge and calling it a day, asking for curvature does not make the surfaces smooth either, it is a false sense of trust in the software. The software can not know what the surface to be aligned to the other surface is doing beyond the boundary.

The boundary is an artifact of surfacing, it can cause seams in our surfaces and we can’t have that. But it is not something magical, continuity at the boundaries is necessary but certainly not the whole story.

This is a cross section with curvature combs of an a-pillar blend, notice the green locator for G2, but still the transition is not smooth.

You will want to have the general flow of the two surfaces along their entire length have a matching character first,

and worry about the specific tolerances at the boundary (i.e. tangent 0.05, curvature 0.1) later.

You may notice a visible seam across your surfaces,  

and you may think to yourself it is horrible! but we know from the curvature comb cross section that we are 95% of the way home.

Now is the time to put on that boundary locator, and dial in to those very tight industry tolerances.

It makes no sense to do this at any earlier stage than right at the end, because who cares if it is tangent and curvature to within industry tolerances… if the general flow is not good? it would be just a waste of time.

The result should look this this and it was, truthfully, less frustrating than just using boundary locators because we get (from the combs) more insight into our surfaces, which in turn yields a more intelligent means of achieving continuity and a smooth surface-set!

The Above Xsect is demonstrating that the modeler has the entire width of the surfaces under control

This is the level you need for an Automotive Entry level job and the best place to learn it is right here on line at LearningAlias.co.uk I personally have now made it into the Elite Student group, which has 100% success rate for finding Automotive Modeling jobs. LearningAlias feeds these students into OEM’s where they will start their career in a very supportive environment

Have fun surfacing!

Kevin de smet, advanced student at Learning Alias (Elite Student group)
www.learningalias.co.uk

Learning Alias News: Big Discounts on Courses

Special Winter Discount Package

Courses in order of cost:

“Course #1”.

6 Months website access to all video tutorials, 167 Euros (228 USD equivalent Nov.2011)

“Course #2”.

Economy Private Tuition Package 167 Euros (228 USD equivalent Nov.2011) 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”

الكورس الثانى

الحزمة الإقتصادية للدروس الخصوصية ١٠٠ يورو فى الشهر، سوف يراجع ملفك كل ١٥ يوم مع التعليقات والتصليحات والنصائح منى شخصيا، والوصول لجميع ملفات الفيديو بما في ذلك ,,الفيديوهات الخاصة,,

“Course #3”.

Fast Track Full Pro. “One to One” Course with weekly reviews and coaching 250 Euros (USD. 339 approx. Nov. 2011) 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

الكورس الثالث

المسار الكامل للمحترفين، ,,واحد إلى واحد,, مع استعراض لملفات الطلبة اسبوعيا وذلك بمبلغ ٢٥٠ يورو شهريا. فى هذا الكورس سوف تستلم ملفات من المدرس إذا اضطر الأمر لستهيل استكمال الواجبات الخاصة بالأصطح لمستوى قياسى المصانع. هذا يعني استثمارات اكبر، ولكن مرة واحدة في وظيفة النمذجة الاسم المستعار سوف نعود ما كنت استثمرت عدة مرات وتكون قادرة على العمل في أي مكان في العالم..

For more info,

Just register on my website and I’ll send you all the details

www.learningalias.co.uk

USA:

If you are in the USA, just register and login, then go to Profile and you can pay your subscription with your US credit card. Absolutely no extra charges for currency conversion.

Regards

Graham

Designing Motorcycle Body by Dex Woodard Award Winning Designer

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100% of donations go to provide food shelter and education for the abandoned Street Children of Nepal. Please give a few USD/Euro back. Why not do it right now by C.C. or Paypal? Charity credetials: BUDDHA MEMORIAL CHILDREN’S HOME TRUST. Registered Charity No: 1115373 . Thank you, graham bullock

WIP

Watch This Space

Dex Woodard celebrated Chopper Designer and OEM (former LA student), from Denver CO.

Lets us into his secrets on how he designs amazing break through Choppers

 I-ROBOT BIKE

Designed by Dex Woodard Denver CO.

fig.1

fig.2

 

Fig.4

Fig.5


My final decision was to use what I had learned about Alias surfacing with LearningAlias and to model all the big smooth srfs. in the Alias platform. In my opinion Alias is the supreme 3D package for this type of high quality surfacing work

Too Cool for School

Dex Woodard

Learning Alias News: Big Discounts on Courses

Special Winter Discount Package

Courses in order of cost:

“Course #1”.

6 Months website access to all video tutorials, 167 Euros (228 USD equivalent Nov.2011)

“Course #2”.

Economy Private Tuition Package 167 Euros (228 USD equivalent Nov.2011) 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”

الكورس الثانى

الحزمة الإقتصادية للدروس الخصوصية ١٠٠ يورو فى الشهر، سوف يراجع ملفك كل ١٥ يوم مع التعليقات والتصليحات والنصائح منى شخصيا، والوصول لجميع ملفات الفيديو بما في ذلك ,,الفيديوهات الخاصة,,

“Course #3”.

Fast Track Full Pro. “One to One” Course with weekly reviews and coaching 250 Euros (USD. 339 approx. Nov. 2011) 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

الكورس الثالث

المسار الكامل للمحترفين، ,,واحد إلى واحد,, مع استعراض لملفات الطلبة اسبوعيا وذلك بمبلغ ٢٥٠ يورو شهريا. فى هذا الكورس سوف تستلم ملفات من المدرس إذا اضطر الأمر لستهيل استكمال الواجبات الخاصة بالأصطح لمستوى قياسى المصانع. هذا يعني استثمارات اكبر، ولكن مرة واحدة في وظيفة النمذجة الاسم المستعار سوف نعود ما كنت استثمرت عدة مرات وتكون قادرة على العمل في أي مكان في العالم..

For more info,

Just register on my website and I’ll send you all the details

www.learningalias.co.uk

USA:

If you are in the USA, just register and login, then go to Profile and you can pay your subscription with your US credit card. Absolutely no extra charges for currency conversion.

Regards

Graham

Posted in Uncategorized | 1 Reply

Sketching Cars

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WIP:

 

Automotive Digital Sculptor and Designer Bradley Ratajczek

talks about how to sketch Automobiles (Interior and Exterior) and gives us some of his HOT tips

Hi, I am 

Bradley Ratajczek

 These are quick 5 minute sketches

that i use as either underlays to tighten/clean up or for rapid idealization for future themes. I find by being loose in the thought process, laying out long sweeping brushstrokes help define the overall shape and theme. I mostly draw on A4 bank paper with either black Art-liner or Bic pens. Art-liners are good as they do not bleed when you apply copic markers. The rendered images of the SUV are drawn with a Bic hence the bleed.

 Do not worry about getting the perspective correct

as it take several passes by flipping the pages and drawing over the reverse till the perspective is correct. The main fundamental is to get the idea onto paper. Remember these “quick” initial concepts are usually only for my own eyes. The beautiful renders you see are drawn from many overlays with many hours spent rendering them. Another technique I use is by using underlays- do not think of it as cheating, it helps you understand proportion. Proportion is the most critical for a designer. For example a Sport car needs a longer wheelbase with short front and rear overhangs to define aggressiveness.  

I will be posting a progressive blog including interior & exterior design from sketching to rendering using Alias Automotive paint suite.

including interior sketching

Cheers

Brad

If you are interested in learning Exterior/Interiors , please email me for course details

Learning Alias News: Big Discounts on Courses

Special Winter Discount Package

Courses in order of cost:

“Course #1”.

6 Months access to all website  based video tutorials, 167 Euros (200 USD equivalent Nov.2011)

“Course #2”.

Economy Private Tuition Package 167 Euros (228 USD equivalent Nov.2011) 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”

الكورس الثانى

الحزمة الإقتصادية للدروس الخصوصية ١٠٠ يورو فى الشهر، سوف يراجع ملفك كل ١٥ يوم مع التعليقات والتصليحات والنصائح منى شخصيا، والوصول لجميع ملفات الفيديو بما في ذلك ,,الفيديوهات الخاصة,,

“Course #3”.

Fast Track Full Pro. “One to One” Course with weekly reviews and coaching 250 Euros (USD. 339 approx. Nov. 2011) 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

الكورس الثالث

المسار الكامل للمحترفين، ,,واحد إلى واحد,, مع استعراض لملفات الطلبة اسبوعيا وذلك بمبلغ ٢٥٠ يورو شهريا. فى هذا الكورس سوف تستلم ملفات من المدرس إذا اضطر الأمر لستهيل استكمال الواجبات الخاصة بالأصطح لمستوى قياسى المصانع. هذا يعني استثمارات اكبر، ولكن مرة واحدة في وظيفة النمذجة الاسم المستعار سوف نعود ما كنت استثمرت عدة مرات وتكون قادرة على العمل في أي مكان في العالم..

For more info,

Just register on my website and I’ll send you all the details www.learningalias.co.uk

USA:

If you are in the USA, just register and login, then go to Profile and you can pay your subscription with your US credit card. Absolutely no extra charges for currency conversion.

Regards

Graham

Posted in Uncategorized | 1 Reply