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Questions - 3d

Motion Vector - how to calculate it properly?

I'm trying to wrap my head around calculating motion vectors (also called velocity buffer). I found this tutorial, but I'm not satisfied with explanations of how motion vector are calculated. Here is ...
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bilek993

opengl

graphics

3d

vulkan

Votes: 0

Answers: 1

Latest Answer

This is a mapping from the [-1, 1] clip space onto the [0, 1] texture space. Since lookups in the blur shader have to read from a textured at a position offset by the velocity vector, it's necessary t...
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BDL

Making a 3d histogram from a datacube in python

So I currently have a datacube that is of dimensions 1014 by 1014 by 24. Essentially this is 24 images of size 1014 pixels by 1014 pixels. The 24 images were all taken at different times in the year I...
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ProtonChain

python

matplotlib

3d

histogram

Votes: 0

Answers: 0

How do you get a random point in a 3D plane

I need to get a random point in a plane. Let's say we have a quad and know the positions of the four vertices that make it up. How do I get a random point that's within that quad?
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AmDesperate

c++

graphics

3d

Votes: 0

Answers: 2

Latest Answer

Given a quad like: pD ---- pC | | | | | | pA ---- pB You can get a random point by getting a random point within that normalized square and use the A-to-B and A-to-D vectors as a co...
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user4442671

Transformation Matrix between all points of surface after a rotation and translation

My question is simple but i can't remember the "transformation" formula: I have a surface S in a 3d world. I know the coordinate of all four corners (P1, P2, P3, P4) where P1 is (x1, y1, z1)...
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Yanez Diego Parolin

math

3d

camera

transformation

algebra

Votes: 0

Answers: 0

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