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!
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.
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.