this is the first release of my perspective grid utility.
vPoint is an online utility that allows you to create an image with perspective grids and additional construction lines. The image can then be printed and used as an underdrawing on a lightbox for example.
The aim is to help speed up the process of creating perspective grids and construction lines as a basis for a drawing using traditional materials. The grids and construction lines can be placed quickly and it doesn't matter if the vanishing points are far away from the page.
The online utility can be found here: www.ayalpinkus.nl/vPoint.html
Here's an example reference grid built with this utility.