I have a room, full model (you can download it from the following link https://filesender.garr.it/?s=download&token=1337e276-7a3f-4cb3-b57f-02c1a6b0088e apologies for the file size, approx. 2.5Gb) in a .ply format. The file contains the following structure:
Description: ply format binary_little_endian 1.0 comment generated by omnimap element vertex 3786298 property float x property float y property float z property float nx property float ny property float nz property float radiance_blue property float radiance_green property float radiance_red property float irradiance_blue property float irradiance_green property float irradiance_red property float irradiance_lamp_0_blue property float irradiance_lamp_0_green property float irradiance_lamp_0_red property float irradiance_lamp_1_blue property float irradiance_lamp_1_green property float irradiance_lamp_1_red property float irradiance_lamp_2_blue property float irradiance_lamp_2_green property float irradiance_lamp_2_red property float irradiance_lamp_3_blue property float irradiance_lamp_3_green property float irradiance_lamp_3_red property float irradiance_lamp_4_blue property float irradiance_lamp_4_green property float irradiance_lamp_4_red property float irradiance_lamp_5_blue property float irradiance_lamp_5_green property float irradiance_lamp_5_red property float reflectance_blue property float reflectance_green property float reflectance_red element face 7570727 property list uchar uint vertex_indices element lamp 6 property list uint uint vertex_indices end_header
The radiosity data I guess can be ignored or be used for comparison.
In any case with the above data in theory I have all the needed information for applying a light simulation with Radiance, i.e. 3D model, vertices, faces, normals, reflectance and the vertices corresponding to the 6 light sources in the scene thus, their position from where possibly I could apply a light source model by using an IES file or something. My question now is the following, would be easy for someone to give me some details how I could use these data to model radiance and irradiance through the Radiance light simulation tools so that to get the corresponding flux/lux values.
Also does Radiance supports an output in the 3D space meaning per vertex/face.
I haven’t used Radiance before, thus I would appreciate any feedback about how to deal with such data or even how to restructure it for being possible to apply such a light simulation with Radiance.