Depends on the raw data I use to make the exact design with some extra improvements (if required) by the exact measurements in 3d designs. Besides it, photos and images are also edited at professional level. As I have also good experience in Perl and CGI script, I code small application to large packages and modules in perl and by using CGI, I develope web interface also.
What the Seller needs to start the work
For 3d design I need the plan of the Buyers what they want for their designs. This includes CAD drawing with the sufficient information, time on what view will be shown, global direction information of real time i.e. sun dimension direction etc. For perl code, the algorithm in the good way and the format of output whether a perl code only or a web interface or package or module.