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Ray tracing - SlideShare
https://www.slideshare.net/dieulinh299/ray-tracing
Ray tracing algorithm • Builds the image pixel by pixel • Cast additional rays from the hit point to determine the pixel color – Shoot rays toward each light.
Ray tracing - SlideShare
https://www.slideshare.net/nidhalelabbadi/ray-tracing-44324201
February 5, 2015 31 The basic algorithm is compute u, v, w basis vectors for each pixel do shoot ray from eye point through pixel (x, y) into scene intersect with all surfaces, find first one the ray hits shade that point to compute pixel (x, y)’s color Ray Tracing [email protected] 32. February 5, 2015 32 Ray Tracing [email protected]
Introduction to Ray Tracing - Slides
https://slides.com/sergejkosov/introduction-to-ray-tracing/fullscreen
or image synthesis. The process of generating a more or less photorealistic 2D image from a 3D scene as a view from a camera located in that 3D scene by means of a computer program. Rasterization. Ray Tracing. Rendering Algorithms. Photorealism. Efficiency. …
Ray Tracing - cs.ucf.edu
https://www.cs.ucf.edu/courses/cot4810/fall04/presentations/Ray_Tracing.ppt
Drawbacks of Ray Tracing Slow due to many intersection testing operations 640x480 resolution, objects with 10 ops/test, 3,072,000 ops required per object Does not include secondary rays Not appropriate for most games as real-time rendering through ray tracing is nearly impossible with current techniques and hardware Speeding Up Ray Tracing ...
Ray tracing idea Ray Tracing - cs.cornell.edu
https://www.cs.cornell.edu/courses/cs465/2005fa/lectures/03raytracing.ppt.pdf
Ray tracing algorithm for each pixel {compute viewing ray intersect ray with scene compute illumination at visible point put result into image} Cornell CS465 Fall 2004 ... • With ray tracing it’s easy to check – just intersect a ray with the scene! Cornell CS465 Fall 2004 ...
Ray Tracing Algorithm - People
https://people.cs.vt.edu/yongcao/teaching/csx984/fall2011/documents/Lecture4_RayTracing_Algorithm.pdf
Ray Tracing Algorithm Copyright © 2010 by Yong Cao View dependent Computationally expensive Good for refraction and reflection effects Author: Yong Cao Created Date ...
Ray Tracing Basics
https://web.cse.ohio-state.edu/~shen.94/681/Site/Slides_files/basic_algo.pdf
p(t) = e+ t (s-e) (now you know how to get s and e) •Typically weoffset the ray by half of the pixel width and height, i.e, cast the ray from the pixel center e s s-e incrementing (i,j) (0,0) Put it all together •We can represent the ray as a 3D parametric …
PowerPoint Presentation
http://www.cs.northwestern.edu/~ago820/cs351/Slides/RayTracingSlides.ppt
Ray Tracing CS 351-50 Nov. 19, 2003 Turner Whitted No Bounces One Bounce Two Bounces Reflection Ray Adding an object: transparency Refraction Index of Refraction > 1 Index of Refraction < 1 Algorithm Sampling Ray Tracing Demos Sampling Demo Texture & Materials Links Ray Tracing CS 351-50 Nov. 19, 2003 Turner Whitted No Bounces One Bounce Two Bounces …
CS 4204 Computer Graphics Introduction to Ray Tracing
https://courses.cs.vt.edu/~cs4204/lectures/ray_tracing.pdf
• Recursive algorithm Function Main for each pixel (c,r) on screen determine ray r c,r from eye through pixel color(c,r) = raytrace(rr c,r) ) end for end function raytrace(r) find closest intersection P of ray with objects clocal = Sum(shadowRays(P,Lighti)) c re = raytrace(r re) c ra = raytrace(r ra) return c = clocal+k re*c re+k ra*c ra end
PowerPoint Presentation
https://web.cse.ohio-state.edu/~boggus.2/3541/Lectures/21%20-%202%20-%20Rendering%20using%20Raytracing.pptx
Raycast rendering algorithm: Foreach ray r corresponding to one pixel[x,y] in image frame if(r hit nothing) pixel[x,y] = background color else(r hit object o) pixel[x,y] = color of object o at point of intersection with r Lighting and Shading calculations Physics of light Red lines – single bounce ; local illumination
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