use glm::project instead of figuring out the conversion manually...

use glm::unProject to implement screenToModelCoordinates

PartRenderer::modelToScreenCoordinates FINALLY WORKS

grid stuff

made the grid look nicer

added grid program

avoid having the null id in the selection

selection works now

(0) -30 -10 -8 +8 +10 +30 +100 +300 tip

mercurial