Moustafa Elewa's profile

Jaguar F-pace Alias/dynamo/catia Tutorial- breakdown

Hi:
I'd like to share a quick demonstration of Class-A modeling process of my personal project "Jaguar" car modeling.
Please bear in mind that the techniques used in modeling are not necessarily the best one, every modeler has his/her techniques. I am a hobbyist modeler after all, yet have so much to gain in this lovely field.
So let's begin:

Step 1: (primary surfaces)
The first step is breaking down the car into its simplest volumes and forms, this is done by modeling the main slaps with light parameters and simple tools that generate surfaces from curves as Monorails, draft, and skin tool. Those surfaces shall make a closed consistent volume.
Positioning the primary surfaces in the right way in the 3d space is the most important and critical stage as it would determine the main shape, and I mainly take advantage of history at this stage.
In this stage, a quick exploration of volumes and reflection lines is the ultimate goal, I don’t care much about technical properties of the surfaces as degree or alignment now.

Step 1b (primary surfaces; wheel arches):
Wheel arches are a very special area of any car, it does not only identify the brand but also is a complex transition between straight to the curved surface, this transition should be elegant and well controlled.
Here in this example, I made a simple, yet effective rig to control the curviness transition of the wheel arch that dramatically shifts the zebra reflections.

Step 2: (More details, More tuning)
Here we continue to build up more details and features. Dependence on associativity (history) is less wanted for now, but I eventually need it if I needed essential modification.
Here also I began to clean the surfaces a bit, making it bezier low degree and apply G2 alignment (i usually use relatively high tolerance at this stage).

Step 3: (More detailing, more cleaning up):
At this stage, fillets, blendings, gaps, and secondary parts are added.
The main theme here is to assure the quality of the surfaces, maintaining water-tight surfaces and no visual break in the car.
Some Alias tools that I usually use to check the quality as cross sections, curvature map “gaussian or princ. max”, and check model tool.

Step 4 (rims and wheels):
Rims can be modeled by using multiple symmetry planes.
Wheels dents are modeled by dynamo.

Step 5 (finalization):
Grills, Headlight fine details, are modeled by dynamo.

Step 6 (Late discovered mistakes fix):
Mistake 1: The surface around small grills is not identical to the original car, it needs to be remodeled.
Mistake 2: The transition surfaces along the back side of the car are not consistent, it needs to be fixed.

Exotic reflection lines!!! That is why I am in love with Alias!
Exotic reflection lines!!! That is why I am in love with Alias!
Full resolution of the "tire dents" script
Quick demo showing parameters controlling the model.
Catia's associativity nature is super powerful and can save big times.
In this example, i used catia to model car door handles with exact technical properties on both doors.
Tangency maintained after the model imported from catia.
At last i wish you like my work.
For more pictures of patch-work and vred renderings, please clink this link:
Jaguar F-pace Alias/dynamo/catia Tutorial- breakdown
Published:

Jaguar F-pace Alias/dynamo/catia Tutorial- breakdown

Quick demonstration of Class-A modeling process of my personal project "Jaguar" car modeling.

Published: