20.500.12556/RUL-173285 Implementacija kodirnika za vzporedno bločno kompresijo tekstur v formatu ASTC Implementation of an encoder for parallel block-based texture com- pression in the ASTC format Diplomsko delo obravnava načrtovanje, implementacijo in testiranje kodirnika za format kompresije tekstur ASTC (Adaptive Scalable Texture Compres- sion) z uporabo aplikacijskega programskega vmesnika WebGPU. V moderni računalniški grafiki je uporaba kompresije tekstur ključnega pomena za op- timizacijo uporabe grafičnega pomnilnika in pasovne širine pri komunikaciji z grafično kartico. Format ASTC omogoča visoko stopnjo prilagodljivosti in nadzor nad razmerjem med kakovostjo in stopnjo kompresije. Visoka prilagodljivost je mogoča zaradi kompleksne strukture formata, ki pa povzroči visoko računsko zahtevnost pri procesu kodiranja. V diplomskem delu predsta- vimo delovanje formata ASTC in algoritem, ki ga uporablja uradni kodirnik podjetja ARM. Nato opišemo lastno implementacijo kodirnika, v kateri smo kompleksen proces kodiranja razdelili na zaporedje računskih senčilnikov, ki pri kompresiji vhodne teksture uporabljajo vzporedno računanje. Lastno im- plementacijo na koncu primerjamo z uradno implementacijo glede na kakovost in hitrost kompresije. Rezultati testiranja so pokazali, da naš kodirnik ne zaostaja bistveno po kvaliteti kompresije, vendar pa je čas izvajanja kljub vzporednemu računanju daljši. Čeprav naša implementacija ne dosega hitrosti uradne implementacije, rezultati kažejo, da je uporaba računskih senčilnikov potencialno učinkovit pristop za pospešitev kompresije tekstur, hkrati pa odpira možnosti za nadaljnje optimizacije in razširitve. The thesis addresses the design, implementation, and testing of an encoder for the ASTC (Adaptive Scalable Texture Compression) format using the WebGPU application programming interface. In modern computer graphics, the use of texture compression is crucial for optimizing the usage of graphics memory and bandwidth in communication with the graphics card. The ASTC format allows for a high degree of adaptability and control over the trade-off between quality and compression ratio. This high adaptability is possible due to the format’s complex structure, which results in high computational complexity during the encoding process. In this thesis, we present the structure of the ASTC format and the algorithm used by the official ARM encoder. We then describe our own implementation of the encoder, in which we divided the complex encoding process into a series of compute shaders that use parallel computation to compress the input texture. Finally, we compare our implementation with the official implementation in terms of quality and compression speed. The test results showed that our encoder does not significantly lag in compression quality, but its execution time is longer despite the parallel computation. Although our implementation does not achieve the speed of the official implementation, it still demonstrates that the use of compute shaders is a potentially effective approach for accelerating texture compression, while also opening up possibilities for further optimizations and extensions. tekstura kompresija grafična kartica senčilnik kodirnik texture compression graphics card shader encoder true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-15 13:00:00 2025-09-15 13:00:06 2025-11-07 03:54:22 0000-00-00 00:00:00 2025 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 38370 253796611 Zupancic_Jure_-_Implementacija_kodirnika_za_vzporedno_blocno_kompresijo_tekstur_v_formatu_ASTC.pdf Zupancic_Jure_-_Implementacija_kodirnika_za_vzporedno_blocno_kompresijo_tekstur_v_formatu_ASTC.pdf 1 F90E7D827F5F608DD3D4E58706A18275 e1d87f4ee320003e8f7d1e1d3d30f88607f3f09f52aac16310c8805185e0f895 f858f68d-9222-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=217540 Fakulteta za računalništvo in informatiko 0 0 0