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Re:4K4D: Real-Time 4D View Synthesis at 4K Resolution by firtoz on Wednesday October 18, 2023 @04:46AM (#37926241)
When it comes to volumetric clouds, the D stands for how many dimensions you store the points in.

A 2d volume (similar to an image) has pixels stored in 2d coordinates

A 3d volume has points stored in 3d coordinates. Imagine an image for every vertical slice of a brain scan.

A 4d volume has points stored in 4d coordinates, where the newest dimension is time. Imagine a 3d volumetric capture for each frame in time.

Re:4K4D: Real-Time 4D View Synthesis at 4K Resolution by hnben on Wednesday October 18, 2023 @12:28PM (#37931035)
don't forget to add the 3 color dimensions. (this may seem pendantic, but when doing feature-extraction, these extra dimensions really are significant)
Re:4K4D: Real-Time 4D View Synthesis at 4K Resolution by pard68 on Wednesday October 18, 2023 @07:03PM (#37935985)
Ah so Vector4