AR25305 Digital Drawing, Visualisation and Representation – Semester III – Arch – R-2025

Subject Code & Name: AR25305 – Digital Drawing, Visualisation and Representation

Regulation: R-2025

Semester: III (Third Semester)

Branch: B. Arch. (Arch)

Credits / L-T-P: 4 Credits | L-T-P: 1-0-3

Course Objectives

• To introduce computer operation principles and explore image editing through a graphical composition.
• To impart training in computer aided 2D drafting and 3D modelling skills and to apply in developing a design from the initial stages to the final outcome.
• To enable the rendering of a building so as to create a photo realistic image.

Full Unit-wise Syllabus

Unit I – Introduction to Computer and Image Editing

Technology of small computer system. Computer terminology. Operation principles of P.C. Introduction to application software, graphic system, use of printers, scanner, plotter, file management, etc. Understanding bitmap images and vector graphics, image size and resolution. Basic tools for editing and creating graphics. Exercise in creating visual compositions using digital graphics (pixels/vector).

Unit II – Basics of Building Modelling and Viewing the Building Model

Creating a basic floor plan. Temporary dimensions. Adding and modifying walls. Working with compound walls. Using editing tools. Adding and modifying doors. Adding and modifying windows. Understanding the drawing unit’s settings, scales, limits, drawing tools, drawing objects, object editing, and text, dimensioning. Transparent overlays, hatching utilities, line type, line weight and colour. Multiline, polyline, etc. Styles, blocks and symbol library. 2D Drafting exercise of a simple building.

Unit III – Introduction to 3D Modelling

Slide facilities script attributes, V-port, editing session. Introduction to 3D-modelling technique and construction planes, drawing objects, 3D surfaces setting up elevation thickness and use of dynamic projections. Solid modelling with primitive command and Boolean operation. 3D sculpture exercise using 3D primitives (cubes, spheres etc.)

Unit IV – 3D Rendering and Setting

Rendering and scene setting to create a photo realistic picture, understanding material mapping, environment setting and image filling. Exercise on interior 3D rendering of a room exploring the potential of lights and camera.

Course Outcomes (COs)

• CO1: Ability to express using digital tools in the realm of visual composition, drafting, 2D drafting and 3D rendering.
• CO2: Ability to understand and handle principles and modes of computer application.
• CO3: Ability to apply rendering techniques with all its dynamics.

Assessment Pattern (Quick Note)

• Weightage: Continuous Internal Assessment 50% | End Semester Examinations 50%
• Internal methodology: Three Assessments with equal weightage. One Assessment as Internal written Test/Examination (33.33%), other two assessment (each assessment weightage – 33.33%) as continuous marking of the work and performance during the particular assessment period such as drawings, models, study, seminar, etc.,

Source: Official Anna University – B. Arch. R-2025 Syllabus
Last Updated: September 2026