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Sphere Tracing: A Geometric Method for the …
https://graphics.stanford.edu/courses/cs348b-20-spring-content/uploads/hart.pdf
Spheretracing Basics | Ronja's tutorials
https://www.ronja-tutorials.com/post/043-spheretracing-basics/
Sphere tracing: A geometric method for the antialiased …
https://experts.illinois.edu/en/publications/sphere-tracing-a-geometric-method-for-the-antialiased-ray-tracing
Sphere tracing is a new technique for rendering implicit surfaces that uses geometric distance. Sphere tracing marches along the ray toward its first intersection in steps guaranteed not to penetrate the implicit surface. It is particularly adept at rendering pathological surfaces.
(PDF) Accelerating Sphere Tracing - ResearchGate
https://www.researchgate.net/publication/329152815_Accelerating_Sphere_Tracing
Sphere tracing, introduced by Hart in [5], is an efficient method to find ray-surface intersections, provided the surface is represented by a signed distance …
Enhanced Sphere Tracing
https://erleuchtet.org/~cupe/permanent/enhanced_sphere_tracing.pdf
Sphere tracing facilitates approximating the intersection of a ray r(t)=dt+o, where d is the normalized direction, o the origin of the ray, and f the signed distance bound, which represents the geometry. This intersection is computed by Figure 2: Illustration of the classical sphere tracing algo-rithm: The intersection point with a surface is determined
What is Ray Marching? Is Sphere Tracing the same thing?
https://computergraphics.stackexchange.com/questions/161/what-is-ray-marching-is-sphere-tracing-the-same-thing
Sphere tracing. Sphere tracing is one possible Ray marching algorithm. Not all raymarching uses benefit form this method, as they can not be converted into this kind of scheme. Sphere tracing is used for rendering implicit surfaces. Implicit surfaces are formed at some level of a continuous function. In essence solving the equation. F(X,Y,Z) = 0
GitHub - larsbrinkhoff/glsl-sphere-tracing: Ray tracing …
https://github.com/larsbrinkhoff/glsl-sphere-tracing
sphere-tracing.qlsl is a spinning twisting rounded cube. See SphereTracing.pdf for the algorithm.
Sphere Raytracing
http://www.mindtrace.net/spheres/spheres.html
Click on the "Start Spheres" button. A window should pop up. Click on the button that says "Generate random sphere definition". Click on the button that says "Draw image". Another window should pop up, and after a few seconds an image should display. To do another image, click again on "Generate random sphere definition", and then click "Draw image".
Sphere Tracking - University of Wisconsin–Madison
http://pages.cs.wisc.edu/~kovar/sphereTrack.html
Real-Time Monocular 3D Sphere Tracking. The goal of this project was to track the 3D position of a ball in real time using a single camera. We made the following assumptions: The ball is a single color. Background objects may take any color, but the environment is not actively trying to trip us up (e.g., the backdrop isn't wallpaper containing a bunch of circles the same color as the ball).
Scratchapixel
https://www.scratchapixel.com/lessons/advanced-rendering/rendering-distance-fields
Computing the Pixel Coordinates of a 3D Point. 3D Viewing: the Pinhole Camera Model. Rasterization: a Practical Implementation. The Perspective and Orthographic Projection Matrix. An Overview of the Ray-Tracing Rendering Technique. Ray-Tracing: Generating Camera Rays. A Minimal Ray-Tracer: Rendering Simple Shapes (Sphere, Cube, Disk, Plane, etc.)
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