m (→Mapping) |
m (→Approach) |
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| Cr | | Cr | ||
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===Implementation=== | |||
Depending on the resolution of the original image the amount of voxels that have to be rendered and updated can easily exceed the millions. Since the resolution of VR-headsets is still limited aroud 2k it is sufficient to rescale the input-image to about 1024*1024 = 1048576 pixels. This is still too much to render and update every voxel as an independent object in real-time. A solution to this is using instancing on the GPU and just passing the color and position of the instances as a buffer. | |||
To calculate the position- and color-buffer in realtime a compute-shader is used that can easily compute millions of independent calculations in parallel per frame. Compute-Shader inputs can be changed at runtime enabling transitions between diffrent resolutions, mappings and positions. | |||
===Transitions=== | ===Transitions=== | ||
[[File:ImageCloud-Transition1.mp4|none|700px]] | [[File:ImageCloud-Transition1.mp4|none|700px]] | ||
[[File:ImageCloud-Transition2.mp4|none|700px]] | [[File:ImageCloud-Transition2.mp4|none|700px]] | ||