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Course, academic year 2023/2024
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Photorealistic Graphics - NPGR004
Title: Fotorealistická grafika
Guaranteed by: Department of Software and Computer Science Education (32-KSVI)
Faculty: Faculty of Mathematics and Physics
Actual: from 2022
Semester: summer
E-Credits: 5
Hours per week, examination: summer s.:2/2, C+Ex [HT]
Capacity: unlimited
Min. number of students: unlimited
4EU+: no
Virtual mobility / capacity: no
State of the course: taught
Language: Czech, English
Teaching methods: full-time
Teaching methods: full-time
Additional information:
Guarantor: prof. Dr. techn. Alexander Wilkie
RNDr. Josef Pelikán
Class: Informatika Bc.
Informatika Mgr. - Softwarové systémy
Classification: Informatics > Computer Graphics and Geometry
Annotation -
Advanced course of computer graphics focused on 3D graphics and realistic rendering. Main topics: lighting models, smooth shading, ray tracing including acceleration techniques, anti-aliasing, distributed ray tracing, sampling methods, textures, Monte-Carlo methods, radiosity methods: hierarchical radiosity, adaptive mesh subdivision. Labs: modules for JaGrLib library in Java language. Continuity: Computer Graphics III (PGR010).
Last update: T_KSVI (26.04.2001)
Course completion requirements -

Student must have enough lab assignments finished (at least handed in)

before going to an exam.

Lab credit requirements are explained in detail on the page:

The same URL explains the grading system of the subject.

Exam can be repeated. Lab credit repetition is irrelevant.

Last update: Pelikán Josef, RNDr. (22.06.2018)
Literature - Czech

Glassner A.: Principles of Digital Image Synthesis, Addison- Wesley, 1995

Foley, Van Dam, Feiner, Hughes: Computer Graphics, Principles and Practice in C, Addison-Wesley, 1995

Glassner A.: An Introduction to Ray Tracing, Academic Press, 1991

Žára J., Sochor J., Beneš B. a Felkel P.: Moderní počítačová grafika, 2. vydání, Computer Press, 2004

Last update: Pelikán Pavel, prof. (02.05.2005)
Requirements to the exam -

Exam is written and oral (basis is written, there is a possibility to

call a student for short discussion over the answers).

Every topics presented at lectures can be examined (exceptions are mentioned specifically):

Overall grading is based on lab credit (50-80 points) + exam points (0-100 points).

Grading table - together with further details - can be found on

Student should earn enough lab credits before going to an exam.

Last update: Pelikán Josef, RNDr. (22.06.2018)
Syllabus -
1. shading and shadows:
light-object interaction, Phong, Torrance-Sparrow and Strauss lighting models, constant and smooth shading: Gouraud shading, Phong shading, shadow algorithms

2. ray tracing:
ray casting, principles of recursive ray tracing, ray-object intersection algorithms (simple solids, CSG tree, surfaces of revolution, ..)

3. anti-aliasing and sampling:
alias, supersampling (area-sampling), sampling methods: regular grid, jittering, Poisson disk sampling (incremental algorithm), 'N-rooks' sampling, adaptive supersampling, subdivision criteria

4. textures:
2D texture mapping, 3D textures, bump-textures, randomized textures, noise functions (Perlin, Lewis), turbulence synthesis

5. distributed ray tracing (Monte-Carlo methods):
principle, soft shadows, soft reflections and refractions, depth of field, motion blurr, color light difraction, sampling issues

6. ray-tracing acceleration:
adaptive control of tracing depth, adaptive supersampling, bounding volumes, uniform and adaptive space subdivision, mailbox technique, bit vectors, generalized rays

7. radiosity methods:
physical background, form-factors computation, hemicubes, Monte-Carlo form-factors, (adaptive) patch subdivision, shooting with sorting versus gathering, overshooting

Last update: Pelikán Pavel, prof. (18.05.2004)
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