Maximum Intensity Projection Ray-tracing algorithm

Jul 27, 2014

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Maximum Intensity Projection Ray-tracing algorithm. Projected image. Raw data. Ray-tracing parallel to projection direction .

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Maximum Intensity Projection Ray-tracing algorithm

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Maximum Intensity ProjectionRay-tracing algorithm Projected image Raw data Ray-tracing parallel to projection direction

Ray Tracing

Ray Tracing Rendering Methods Rays Rays for screen images Shadows Recursion Z-Buffer Rendering Objects are immediately drawn onto the screen. We use a “z-buffer” to keep track of what is in front… Object Coordinates Modelview Matrix Eye coordinates Projection Matrix

859 views • 33 slides

Ray Tracing

Ray Tracing. What is it? Why use it? Basics Advanced topics References. Ray-Tracing: Why Use It?. Simulate rays of light Produces natural lighting effects. Ray-Tracing: Why Use It?. Hard to simulate effects with rasterization techniques (OpenGL) Rasterizers require many passes

1k views • 50 slides

Ray-tracing

Ray-tracing. [ in Tesseral-Pro ]. www.tesseral-geo.com. Initial Model. “ 2 horizontal Layers”. Time field for Isotropic Case. Time field for Anisotropic Case. Ray-Tracing Shotgather for Isotropic Case. Ray-Tracing Shotgather for Anisotropic Case.

384 views • 9 slides

Ray Tracing

Whitted 1980. Ray Tracing. Rendering and Techniques. http://cg.alexandra.dk/2009/08/10/triers-cuda-ray-tracing-tutorial/. Polygonal Rendering. For example, OpenGl with one-polygon-at-a-time rendering using simple Phong lighting and shading models – not physically-based

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Ray Tracing

Ray Tracing. Rendering Methods Rays Rays for screen images Shadows Recursion. Visible Surface Raytracing. Object Coordinates. Modelview Matrix. Eye coordinates. Intersection Data Structure. Raytracing then utilizes this data structure to build the image. Raytracing.

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Ray Tracing

Ray Tracing. CS 351-50 Nov. 19, 2003. Turner Whitted. No Bounces. One Bounce. Two Bounces. Reflection Ray. n. I = incident ray = -d N = normal vector R = reflected ray. R. -I. q. q. ( -I . N) N. ( -I . N) N. N. -I + (-I . N) N. -I - (-I . N) N. R. -I. q. q.

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Ray Tracing

CS32310 Assignment Jacek Kruszynski (jck6). Ray Tracing. In Computer Graphics Ray Tracing is a technique devoted to generate images where light behave as naturally as possible. It is a very powerful and simple algorithm that currently is possibly most commonly used. A bstract. Introduction:

366 views • 14 slides

Ray Tracing

Ray Tracing. Trace light rays that enter eye through view-plane back from whence they came. (# rays == # pixels) Use illumination model to determine color at intersection of ray and object. Shadows “happen”. Ray Tracing. Light Source. Shadow Ray. Center of Projection. Projection Plane.

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Ray tracing

Ray tracing. New Concepts. The recursive ray tracing algorithm Generating eye rays Non Real-time rendering. Ray tracing. Using ray tracing you can achieve photorealistic effects You can achieve many complex lighting effects, such as shadows, refraction and reflection.

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Ray Tracing

Ray Tracing. Beyond the Graphics Pipeline Ray Casting Ray-Object Intersection Global Illumination - Reflections and Transparency Acceleration Techniques CSG. Graphics Pipeline Review. Properties of the Graphics Pipeline Primitives are processed one at a time

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Ray Tracing

Ray Tracing. Rendering and Techniques. Images: (Left) http ://cg.alexandra.dk/? p=278 , (Right) Turner Whitted , “ An improved illumination model for shaded display , ” Bell Laboratories 1980. Polygonal Rendering.

731 views • 50 slides

Ray Tracing

Ray Tracing. Jerry Sui Adam Conner. Part I – Introduction to Ray Tracing. Final Product. Part I – Introduction to Ray Tracing. Trace the rays backward from the viewpoint through each pixel and into the scene (reverse direction of light propagation).

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Ray Tracing

Ray Tracing. Chemakura , Baba Kumar Reddy. Introduction to Ray-Tracing. Ray Tracing. global illumination. purpose of Ray Tracing?. Introduction to Ray- Tracing. Basic Setup. Introduction to Ray-tracing. Modeling Rendering. Properties of Light Rays.

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Ray Tracing

Ray Tracing. Photo-Realism. Created by David Derman – CISC 440. Created by Jan Oberlaender – CISC 640. Created by Jan Oberlaender – CISC 640. Created by Donald Hyatt http://www.tjhsst.edu/~dhyatt/superap/povray.html. RAY Tracing. Ray Tracing :

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Ray Tracing

Ray Tracing. Ray Tracing. Highly realistic Considerable computation time. Ray Tracing. prp. Ray Tracing. ambient light: k a I a diffuse light: k d (N.L) specular light: k s (H.N) ns specular reflection direction: R = u-(2u.N)N

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Ray Tracing

CAP4730: Computational Structures in Computer Graphics. Ray Tracing. Chapter 10.11. Outline. What is raytracing? How is raytracing different than what we’ve done before? Math behind raytracing Uses of raytracing. Forward Mapping. Forward mapping is what we are used to. Forward Mapping.

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Ray Tracing

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Ray-tracing

Ray-tracing. Overview. Recursive Ray Tracing Shadow Feelers Snell’s Law for Refraction When to stop!. Recap: Light Transport. (. ). m. (. å. (. ). ). M. =. +. I. k. I. k. n. l. k. h. n. +. ×. ×. ,. r. a. i. j. d. j. s. j. =. 1. j. Recap: Local Illumination.

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Ray Tracing

Ray Tracing. Writing a Very Simple Version. What Makes a Good Picture?. Contents (3D models). Lighting. Reflection. Shadow. Surface textures. Synthetic Camera Model. projector. p. image plane. projection of p. center of projection. Method A: Object Order Algorithm

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