Trespass Calculation Method

Hello all, In this project in Taiwan (I cannot find the country selection below), there are no available IES files nor BUG ratings for the exterior luminaires; therefore, I am pursuing the credit using the Calculation Method. I would appreciate any assistance for clarification of the following. For Uplight, I will need to obtain information of total lumen and total lumen above horizontal for each luminaire, and satisfying the maximum percentage requirement for all luminaries. For Trespass, I need to conduct vertical illuminance simulation using software such as Visual (as mentioned from previous posts) to satisfy the fc requirements. I am a little stuck as to the input of the lighting information. The examples I've seen directly imports IES files which makes running the vertical illuminance fairly straight forwards. When I don't have such files, how do I go about obtaining and importing the photometric data of the luminaire. Do these luminaires need to be tested locally with photometric data and if so, which specific outputs are needed for inputting in the software. Thank you very much.