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Ray Tracing Performance Guide in Unreal Engine | Unreal ...
https://docs.unrealengine.com/5.0/en-US/ray-tracing-performance-guide-in-unreal-engine/#:~:text=Since%20ray%20tracing%20needs%20to%20keep%20objects%20visible%2C,over%20what%20distance.%20The%20following%20options%20are%20provided%3A
Ray Tracing Performance Guide in Unreal Engine | Unreal ...
https://docs.unrealengine.com/5.0/en-US/ray-tracing-performance-guide-in-unreal-engine/
The following options are provided: 1 culls objects behind the camera by distance and solid angle (default ray tracing culling method). 2 culls objects in front of and behind the camera by distance and solid angle. 3 culls objects in front and behind the camera by distance or solid angle.
View Frustum Culling and Animated Ray Tracing ...
https://www.semanticscholar.org/paper/View-Frustum-Culling-and-Animated-Ray-Tracing-%3A-and-Assarsson/22a4be390bae0446d5a80492a8042d7e47491a11/figure/0
Figure 1: The view frustum is the area in grey in front of the eye or the camera. It is defined by the window extensions, the field-of-view, and the near- and far planes. - "View Frustum Culling and Animated Ray Tracing : Improvements and Methodological Considerations"
View Frustum Culling and Animated Ray Tracing ...
https://www.researchgate.net/profile/Ulf-Assarsson/publication/242288010_View_Frustum_Culling_and_Animated_Ray_Tracing_Improvements_and_Methodological_Considerations/links/0f31752e02e5a71119000000/View-Frustum-Culling-and-Animated-Ray-Tracing-Improvements-and-Methodological-Considerations.pdf
View Frustum Culling and Animated Ray Tracing: Improvements and Methodological Considerations ULF ASSARSSON Department of Computer Engineering CHALMERS UNIVERSITY OF TECHNOLOGY G¨oteborg, Sweden 2001
Real-Time Ray Tracing | Unreal Engine Documentation
https://docs.unrealengine.com/4.27/en-US/RenderingAndGraphics/RayTracing/
raytracing - Is back-face culling considered a technique ...
https://computergraphics.stackexchange.com/questions/1916/is-back-face-culling-considered-a-technique-optimization-of-ray-tracing
In any modern ray-tracer, the acceleration structure (BVH, k-d tree, etc) holding your geometry is the primary source of culling. The final list of primitives to trace for a given ray may include non-visible triangles, but ideally there should be very few with good acceleration structures. Ray tracers support many more primitives than just triangles.
Viewing and Ray Tracing - Cornell University
https://www.cs.cornell.edu/courses/cs4620/2013fa/lectures/02view-ray.pdf
Left: in an orthographic view, the rays start at the pixels’ locations on the image plane, and all share the same direction, which is equal to the view direction. Right: in a perspective view, the rays start at the viewpoint, and each ray’s direction is defined by the line through the viewpoint, e, and the pixel’s location on the image ...
Ray Tracing: Rendering a Triangle (Single vs Double Sided ...
https://www.scratchapixel.com/lessons/3d-basic-rendering/ray-tracing-rendering-a-triangle/single-vs-double-sided-triangle-backface-culling
With ray tracing, this feature is not as useful. Generally with ray tracing, we want geometry in the scene to cast shadows for example, regardless of the orientation of the object's surface with respect to the ray direction however the backface culling option might still be desired for primary rays. If the polygon's surface normal points more ...
Accelerating Ray Casting using Culling Techniques to ...
https://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1891&context=theses
view frustum and backface culling. The proposed method traverses the entire tree structure to mark nodes to be inactive if it is outside of the view frustum and skipped if the triangle is a backface. In addition, a ray frustum is calculated to test the spatial coherency of the primary ray.
Culling & Clipping | Mauricio Poppe
https://www.mauriciopoppe.com/notes/computer-graphics/pipeline/culling-clipping/
Culling is a process where geometry that’s not visible from the camera is discarded to save processing time. View volume culling - Geometry outside the view volume can be culled since it won’t produce fragments when rasterized, this process is specially useful when triangles are grouped into an object that has an associated bounding volume, then
Ray traced occlusion culling in point-frag | Beyond3D Forum
https://forum.beyond3d.com/threads/ray-traced-occlusion-culling-in-point-frag.52096/
I implemented a ray tracing version of the zbuffer occlusing technique. Basically, you compute a small zbuffer and you use it to cull the draw calls you send to your GPU. Pretty simple. I am using the DynBVH technique for that and this is fast. For more details, I wrote a lengthy blog post here:
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