First post, by AquaNox
I couldn't find any articles mentioning the use of programmable shaders in Max Payne after browsing several websites from 2001-2002. Although the PCGamingWiki states that the game employs Pixel Shader version 1.1, it is challenging to find any discussion about its implementation of shaders.
Despite the praise for the game's visuals at the time, there isn't a single paragraph detailing its shader implementation, which I suspect is due to the game using no shaders at all.