Algoritam praćenja zrake i praćenja puta za prikazivanje scena u stvarnom vremenu

master's thesis

• Title (english): Real-time Ray and Path Tracing
• Author: Luka Radivoj
• Mentor: Željka Mihajlović (mentor)
• Committee member: Željka Mihajlović (predsjednik povjerenstva)
• Committee member: Alan Jović (član povjerenstva)
• Committee member: Marko Đurasević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2021-07-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Na početku rada razmatra se kako porodica algoritama praćenja zrake rješava nedostatke standardnog rasterizacijskog funkcijskog cjevovoda za iscrtavanje. Iznose se fizikalni i matematički modeli na kojima se temelji fizikalno utemeljeno iscrtavanje te način na koji se navedeni modeli rješavaju jednadžbom iscrtavanja i porodicom algoritama praćenja zrake. Iznosi se fizikalna fenomenologija koju je teško simulirati klasičnim rasterizacijskim metodama. Razmatra se implementacija porodice u kontekstu interaktivnih sustava pomoću koncepta hibridnog cjevovoda, sklopovskih i programskih akceleracijskih struktura. Iznosi se primjer implementacije porodice algoritama praćenja zrake u interaktivnom sustavu u kontekstu alata Unity. Analiziraju se rezultati dobiveni aplikacijom izrađenom u alatu Unity te se razmatra upotrebljivost implementacije u interaktivnim sustavima.

Abstract (english)

In the beginning of this paper, it is discussed how raytracing-based algorithms solve problems of the common rasterized function pipeline used for rendering purposes. Physical and mathematical models of physically based rendering are shown and how the rendering equation and raytracing-based algorithms are used to solve them. It is discussed which effects are hard to simulate with raster-based methods. Furthermore, the concept of a hybrid rendering pipeline is presented and it is discussed how this concept, along with hardware and software acceleration structures, enable raytracing-based algorithms to be used in interactive rendering systems. The implementation in the Unity engine is shown as an example. An analysis of the results retrieved form the demo application made with the Unity engine is given. It is also discussed whether these results are plausible for usage in interactive rendering systems.

• Keywords: praćenje zrake; praćenje puta; fizikalno utemeljeno iscrtavanje; hibridni cjevovod; Unity; HDRP
• Keywords (english): raytracing; path tracing; physically based rendering; hybrid rendering pipeline; Unity; HDRP
• Language: croatian
• URN:NBN: urn:nbn:hr:168:243227
• Study programme: Title: Computing; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 13:38:41