How to customize lighting?

[Shiro-Raven]

I noticed the 7 lighting data files in the data folder. But how can I generate other lighting files for a custom lighting angle?

[zhhoper]

Hi, I provide some more lighting examples, which you can download from https://drive.google.com/drive/folders/10luekF8vV5vo2GFYPRCe9Rm2Xy2DwHkT?usp=sharing.

Another way is to compute the SH from an environment map, or you can get the lighting from a face based on the provided code. But you need to rotate the SH so that the coordinate system will be consistent with the code used here. https://github.com/zhhoper/DPR/blob/master/utils/utils_normal.py this file may give you an idea how to rotate the SH using shtools

[fungtion]

Hi, @zhhoper , could you please show me how to " get the lighting from a face based on the provided code"? I want to extract the lighting of an image.

[zhhoper]

Hi @fungtion , you can look at the sample code: https://github.com/zhhoper/DPR/blob/master/testNetwork_demo_512.py#L86.
The outputSH is the lighting estimated from the face

[fungtion]

@zhhoper Thanks.

[lyumingzhi]

@zhhoper would you mind sharing the code for generation these lighting files?

[jimmysue]

@zhhoper would you mind sharing the code for generation these lighting files?

Have you figured out how to generate light files?

[taoxinhao13]

Hi, I provide some more lighting examples, which you can download from https://drive.google.com/drive/folders/10luekF8vV5vo2GFYPRCe9Rm2Xy2DwHkT?usp=sharing.

Another way is to compute the SH from an environment map, or you can get the lighting from a face based on the provided code. But you need to rotate the SH so that the coordinate system will be consistent with the code used here. https://github.com/zhhoper/DPR/blob/master/utils/utils_normal.py this file may give you an idea how to rotate the SH using shtools

This is a nice work!! The link you provided is no longer accessible. Could you please provide a new link? Additionally, I aim to obtain these 9 coefficients using only the information from the azimuthal and Polar angles. However, the results are clearly suboptimal. What could I do this?