L2 SM Computer Graphics

Summative Assignment

This coursework gives you an opportunity to implement a small 3D living room environment by 

applying your computer graphics knowledge and skills. There are different aspects for constructing 

a 3D environment, including object modeling, object transformation, scene graph construction, 

lighting, virtual camera setting, etc. Under each aspect, a variety of techniques could be used. You 

are expected to implement the above aspects with WebGL, demonstrating your competence in 

developing a computer graphics application. The deadline for submission is the 6

th March 2019 

(2pm) through DUO. This assessment contributes 12.5% of the overall COMP2231 module mark.

Requirements and Marking Criteria:

• 3D Modeling (25 marks): Create 3D models to represent a living room and at least 10 pieces 

of furniture inside the room.

• Simple Model Animation (15 marks): Apply geometric transformations to support simple 

animation to 30 percentage of the furniture, such as movable chairs, a dangling light, etc.

• Scene Graph Construction (15 marks): Implement a scene graph to support effective 

construction and manipulation of 3D models.

• Rendering Effects (25 marks): Implement suitable lighting effects for the living room 

environment and allow the room to be rendered under adjustable virtual camera settings.

• Model and Scene Appearance (20 marks): Implement suitable coloring and texture mapping to

support visually appealing rendering outputs.

For implementation, you should apply knowledge and methods you have learnt from the lectures

and practical sessions. The marking criteria shows the breakdown of how the coursework 

requirements will be marked. As shown in Table 1, the percentage of marks awarded under each 

of the criteria will be determined by the level of achievement you have made. You are expected to 

use native WebGL for the implementation. No other high-level graphics API should be used, e.g., 

three.js. For the 3D model construction, you can build complicated 3D models by compositing a 

set of primitive objects through geometric transformations. If you alternatively resort to a modeling 

software, such as Blender, for 3D model construction, you are required to identify a suitable way 

on your own about how to incorporate the constructed 3D models into your WebGL program.

Your submission should include all source codes, resource files, and a readme file showing 

instructions of how to run your system and what external resources you have adopted. You should 

compress all files into a single zip file and upload it to DUO for submission.

Table 1:

Level of achievement Percentage of Marks

No implementation 0%

Inadequate or incomplete implementation 0 - 40%

Satisfactory to Good (in terms of correctness and completeness) 40 - 60%

Very Good to Excellent (in terms of completeness and robustness) 60 – 80%

Outstanding to Perfect (in terms of completeness, robustness and complexity) 80 - 100%