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RenderToolbox / RenderToolbox3

Matlab toolbox for managing graphics rendering for psychophysics
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Wanted: multi-spectral light field data #29

Closed benjamin-heasly closed 7 years ago

benjamin-heasly commented 9 years ago

Issue by benjamin-heasly Friday Mar 27, 2015 at 16:29 GMT Originally opened as https://github.com/DavidBrainard/RenderToolbox3/issues/59

It appears that Mitsuba will accept multi-spectral OpenEXR files as inputs for rendering with light fields. This should allow us great flexibility in specifying spatial and spectral variability of lighting!

Here is a proof of concept, passing a multi-spectral OpenEXR file as a Mitsuba light field input: https://github.com/DavidBrainard/RenderToolbox3/wiki/LightFieldSphere-Example-Scene

So now we would like to obtain some multi-spectral light probe data. There are a couple nice ways to go about this.

We could start with RGBE light probe data and promote it ourselves in Matlab. This would require a new Utility function for writing multi-spectral OpenEXR files.

We could also capture light probe data from rendered scenes. This would use a sensor like Mitsuba's "spherical" camera.

benjamin-heasly commented 7 years ago

This is addressed in RenderToolbox4's LightFieldSphere example scene https://github.com/RenderToolbox/RenderToolbox4/wiki/LightFieldSphere