RAY TRACING RENDER MENGGUNAKAN FRAGMENT ANTI ALIASING

• Main Authors: Febriliyan Samopa, Wawan Mardian
• Format: Article
• Language: English
• Published: Institut Teknologi Sepuluh Nopember 2008-07-01
• Series: JUTI: Jurnal Ilmiah Teknologi Informasi
• Online Access: http://juti.if.its.ac.id/index.php/juti/article/view/175

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Ray tracing as a rendering method that traces ray for each image pixel has a drawback, that is, aliasing (jaggies effect). There are some methods for executing anti aliasing. One of those methods is OGSS (Ordered Grid Super Sampling). OGSS is able to perform aliasing well. However, this method requires more computation time since sampling of all pixels in the image will be increased. Fragment Anti Aliasing (FAA) is a new alternative method that can cope with the drawback. FAA will check the image when performing rendering to a scene. Jaggies effect is only happened at curve and gradient object. Therefore, only this part of object that will experience sampling magnification. After this sampling magnification and the pixel values are computed, then downsample is performed to retrieve the original pixel values.</span></p> <p class="MsoNormal" style="margin-bottom: 0.0001pt; text-align: justify; line-height: normal;"><span style="font-size: 10pt; font-family: NimbusRomNo9L-ReguItal;">Experimental results show that the software can implement ray tracing well in order to form images, and it can implement FAA and OGSS technique to perform anti aliasing. In general, rendering using FAA is faster than using OGSS although there is some situation where the time effectiveness is equal. This is possible since the process of intersection searching on FAA needs additional time. Rendered images using FAA are relatively similar to those using OGSS.</span></p> <p class="MsoNormal" style="margin-bottom: 0.0001pt; text-align: justify; line-height: normal;"><span style="font-size: 10pt; font-family: NimbusRomNo9L-ReguItal;"> </span></p> <p class="MsoNormal" style="text-align: justify;"><span style="font-size: 10pt; line-height: 115%; font-family: NimbusRomNo9L-MediItal;">Kata Kunci: </span><span style="font-size: 10pt; line-height: 115%; font-family: NimbusRomNo9L-ReguItal;">Ray Tracing, Fragment Anti Aliasing, Ordered Grid Super Sampling, Render, Sampling, Jaggies</span></p>