Izdelava 3D modela v programu autodesk alias autostudio

Vrtačnik, Anže (author), Iskra, Andrej (mentor)

V diplomskem delu z naslovom Izdelava 3D modela v programu Autodesk Alias Autostudio je predstavljen celoten proces od uvoza prostoročnih avtomobilskih skic v program do končnih vizualizacij 3D-modela. V teoretičnem delu je predstavljena kratka zgodovina razvoja računalniško podprtega načrtovanja in njegovih prednosti, ki jih ponuja. Ker je bil končni izdelek diplomskega dela 3D-model avtomobila, so v teoretičnem delu opisane faze delokroga v avtomobilski industriji, kako se ideje, ki so na listu papirja, pretvorijo v končni konceptni produkt. Sledi poglavje o modeliranju in načinih, kako lahko 3D-objekt oziroma njegovo geometrijo predstavimo in kaj so prednosti določenega pristopa k modeliranju. Nato je razložen pojem razred A-model, kakšne standarde mora zahtevati, zakaj je pomemben in v kateri fazi delokroga se pojavi v avtomobilski industriji. V poglavju Osnove so opisane NURBS-krivulje, NURBS-površine, kontinuitete in tolerance, ki nam služijo, da bo model vizualno lep in vodotesen. Na koncu teoretičnega dela je še prikaz uporabniškega vmesnika programa Alias in njegovih glavnih menijev. V eksperimentalnem delu je opisan postopek izdelave žičnega modela na podlagi skic in nato dodajanje površin z različnimi orodji. V tej fazi smo raziskovali različna orodja za doseganje toleranc in kontinuitet. Žični model je osnova, ki nam je služila za orientacijo v delovnem prostoru in pri pridobitvi občutka za volumen avtomobila. Skozi celoten proces modeliranja smo tudi preverjali kontinuitete, saj smo se srečevali z raznimi prelomi in luknjami med površinami. Model smo tudi analizirali z uporabo različnih senčnikov, ki so nam podali informacije o površinah. Po končanem postopku modeliranja so sledile še upodobitve. Model smo shranili in uvozili v program VRED, ki je specializiran za ustvarjanje vizualizacij modelov – prototipov. Model smo umestili v sceno, mu dodali materiale in izvozili končno animacijo. Posnetki so bili nato uvoženi v program Adobe Premiere Pro, kjer smo animacijo dopolnili še z glasbo in besedilom

• Language: Slovenian
• Keywords: 3D-model avtomobila, vizualizacija, NURBS-modeliranje, animacija
• Work type: Bachelor thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2023
• PID: 20.500.12556/RUL-151792
• Publication date in RUL: 20.10.2023

Secondary language

• Language: English
• Title: Creation of 3D model in autodesk alias autostudio

Abstract

This paper titled Creation of 3D Model in Autodesk Alias Autostudio presents the entire process from the import of hand-drawn sketches into the programme to final 3D model visualisations. The theoretical part briefly presents the development of computer-aided planning and its advantages. Since the final product of this paper was a 3D car model, the theoretical part describes work phases in the automobile industry and how ideas written on a piece of paper can be transformed into a final conceptual product. It goes on to discuss modelling and ways to present a 3D object and its geometry, portraying the advantages of certain approaches to modelling. Then it describes the notion of A-model grade, the standards it must require, why it is important and the work phase in which it is present in the automobile industry. The chapter titled »Basic Elements« describes NURBS curves, NURBS surfaces, continuities and tolerances used to make the model visually pleasing and watertight. The final section of the theoretical part demonstrates the Alias user interface and its main menus. The experimental part describes how a wireframe was created based on sketches and how surfaces were added using different tools. In this phase, we explored different tools used to achieve tolerances and continuities. The wireframe served as a starting point used for orientation in the working space and to acquire a sense of the volume of the car. Throughout the entire modelling process, we verified continuities due to different breaks and holes that appeared between the surfaces. The model was analysed using different shaders providing information about the surfaces. The finished modelling process was followed by the rendering process. The model was saved and imported into the VRED programme specialised to create model visualisations – prototypes. We introduced the model into a scene, added materials and exported the final animation. The recordings were then imported into Adobe Premiere Pro where the animation was complemented with music and text.

• Keywords: 3D car model, visualisation, NURBS modelling, animation