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Questions tagged [bounding-volume]

24 questions
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Clipping tensor data to a bounding volume

I have 2 questions about tensorflow 2.0, with the focus on how tensorflow handles combined conditional tests in it's operations graph. The task: cut up a volume of data points into blocks, and store the indices to the samples that belong to the…
StarShine
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How to calculate the miss links in a BVH tree?

I am creating an OpenGl based ray tracer for polygon models. To accelerate the application I am using BVH-trees. Because there is no recursion in GLSL, I decided to find an other way to traverse the bounding boxes, sent to the fragment shader as…
Fox1942
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How to convert a BVH node object into a simple array?

I am working on an Opengl ray-tracer, which is capable of loading obj files and ray-trace it. My application loads the obj file with assimp and then sends all of the triangle faces (the vertices and the indices) to the fragment shader by using…
Fox1942
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How to find out the rotation matrix for the oriented bounding box

So I am using the Matterport 3D dataset for my task and it has described the oriented bounding box using the standard structure with one change as follows: "obb": { "centroid":[3.39208,-1.72134,1.13262], …
bhushan
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Reduce calculations while Raytracing

I've written my own 3D Game Engine (it took me a year) and I wanted to create a Raytracer that runs on my CPU (not the GPU!!) For now, the ray tracing process is simplified like this: Cast a ray for each output pixel. If the current ray hits an…
Luecx
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Collision detection with boundingSphere

For each mesh (THREE.Object3D) Three.js provide a very handy properties - boundingSphere and boundingSphere that have intersectsSphere and isIntersectionBox methods. With all this I thought I can use it for simple collision detection but when I try…
SET001
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what is meant by linearization of BVH and bucket count for SAH?

I am working on a CUDA ray tracer and doing some research work on it in which i am unable to find answer of few important questions: What is the purpose of linearizing BVH during ray tracing? and What is meant by bucket count for SAH (Surface area…
Sana.91
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OpenGL, deferred shading, bounding volume for point light and stencil pass, light attenuation

Currently I'm trying to implement deferred shading in my engine. I mostly based on one tutorial founded in web (I don't paste link here due to links limitation :)) but I also use another sources and I know how deferred shading works. My current…
Harry
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NULL-pointer associated with vector

In my ray tracer I am constructing a Bounding Volume Hierarchy. I have used a couple of days trying to fix this error but I seem to be doing something fundamentally wrong. This first method is the construction being called is the one below using a…
miniwolf
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