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Ray tracing - SlideShare
https://www.slideshare.net/dieulinh299/ray-tracing
rgb intensity (Ray r, int depth) { Ray flec, frac; rgb spec, refr, dull, intensity; if (depth >= 5) intensity = back; else { find the closest intersection of r with all objects in scene if (no intersection) { intensity =back; } else { Take closest intersection which is object[j] compute normal N at the intersection point if (Ks[j] >0) { // non-zero specular reflectivity compute reflection ray …
Ray Tracing 1: Basic Algorithm - PowerPoint PPT Presentation
https://www1.powershow.com/view/29022-MzYyZ/Ray_Tracing_1_Basic_Algorithm_powerpoint_ppt_presentation
Intro Graphics Raytracing Stuff. Ray Tracing in Computer Graphics ... Intro Graphics Raytracing Stuff. History. Kobbelt, Daubert, Siedel 98. Subdivision surfs. ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 29022-MzYyZ
Basic Ray Tracing - Inspiring Innovation
https://www.csee.umbc.edu/~adamb/435/Slides/raytrace.pdf
Dielectric. if (pis on a dielectric) then. r= reflect (d, n) if (d.n< 0) then refract (d, n, n, t) c = -d.n. kr = kg = kb = 1 else kr = exp(-alphar * t) kg = exp(-alphag * t) kb = exp(-alphab * t) if (refract(d, …
Ray Tracing Basics - Department of Computer Science and …
https://web.cse.ohio-state.edu/~shen.94/681/Site/Slides_files/basic_algo.pdf
c,y. c,z. c) and radius R can be represented as: (x-x. c) + (y-y. c) + (z-z. c) - R = 0 For a point pon the sphere, we can write the above in vector form: (p-c). (p-c) - R = 0 (note ‘.’ is a dot product) We can plug the point on the ray p(t) = e+ t d. (e+td-c). (e+td-c) - R = 0 and yield (d.d) t + 2d.
PPT – Ray Tracing PowerPoint presentation - PowerShow.com
https://www.powershow.com/view/3b3052-YTUxZ/Ray_Tracing_powerpoint_ppt_presentation
Ray Tracing - Ray Tracing Ray Tracing 1 Basic algorithm Overview of pbrt Ray-surface intersection (triangles, ) Ray Tracing 2 Brute force: Acceleration data structures | PowerPoint PPT presentation | free to view . ... The PowerPoint PPT presentation: "Ray Tracing" is the property of its rightful owner.
Ray Tracing - cs.ucf.edu
https://www.cs.ucf.edu/courses/cot4810/fall04/presentations/Ray_Tracing.ppt
Determine color at closest intersection Color: determined from object Texture: determined from object and texture Shading: generate secondary ray toward light sources Reflection: generate secondary ray at reflection angle outward from object Refraction: generate secondary ray at refraction angle through object Combine information using surface’s lighting equation, and …
Basic Ray Tracing - University of Texas at Austin
https://www.cs.utexas.edu/~theshark/courses/cs354/lectures/cs354-4.pdf
Whitted-style Ray Tracing • Turner Whitted introduced ray tracing to graphics in 1980 • Combines eye ray tracing + rays to light and recursive tracing • Algorithm: 1. For each pixel, trace primary ray in direction V to the first visible surface. 2. For each intersection trace secondary rays: • Shadow in direction L to light sources
Ray Tracing Basics I - cs.rit.edu
http://cs.rit.edu/~jmg/courses/cgII/20072/slides/2-2-raytraceBasics1.pdf
2 Ray Tracing in the real world Light is emitted from light source Bounces off of the environment Assumptions Light travels in straight rays Path of light changes based on object interaction. Can simulate using basic geometry. Some light will reach and be focused by camera onto film plane. Lots of light will not! In image synthesis, we are only interested in the
CS 4204 Computer Graphics Introduction to Ray Tracing
https://courses.cs.vt.edu/~cs4204/lectures/ray_tracing.pdf
• For each pixel construct a ray: eye pixel raytrace( ray ) P = closest intersection color_local = ShadowRay(light1, P)+… + ShadowRay(lightN, P) color_reflect = raytrace(reflected_ray ) color_refract = raytrace(refracted_ray ) color = color_local + k re *color_reflect + k ra*color_refract return( color ) For each pixel construct a ray: pixel ( ray ) =
PowerPoint Presentation
https://web.cse.ohio-state.edu/~boggus.2/3541/Lectures/21%20-%202%20-%20Rendering%20using%20Raytracing.pptx
Ray intersection testing in Unity. Physics.Raycast. Video tutorial. 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.
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