Hi, all, It's me again. Since Asymptote 1.44 has been released, I don't have to compile it myself. So I played a little bit and find out that if I don't want labels nor produce a pdf format of that image, I can live without LaTeX. That's kind of a good news. If I want to embed the .prc file into a pdf document, all I need to do is specify the correct /Subtype and mime type. That's very easy. I think creating 3D presentations without any commercial or mouse- clicking-GUI interface becomes realistic now. -- Best Regards Chen ---------------------------------------------------------------- Zhi-chu Chen | Shanghai Synchrotron Radiation Facility No. 2019 | Jialuo Rd. | Jiading | Shanghai | P.R. China tel: 086 21 5955 3405 | zhichu.chen.googlepages.com | www.sinap.ac.cn ----------------------------------------------------------------