func (p Polygon) Draw(src *draw.Image, im *draw.Image, cameraPos *Point3) {
// for i := range p {
// if i+1 == len(p) {
// (&Line3{p[i], p[0]}).Draw(src, im, cameraPos)
// } else {
// (&Line3{p[i], p[i+1]}).Draw(src, im, cameraPos)
// }
// }
pts := make([]image.Point, 0)
for _, pt := range p {
pt2 := pt.ProjectFrom(cameraPos)
pts = append(pts, image.Point{int(pt2.X), int(pt2.Y)})
}
im.FillPoly(pts, 1, 1, 1, src, image.Point{0, 0})
}
func (l *Line2) Draw(src *draw.Image, i *draw.Image) {
i.Line(image.Point{int(l.V1.X), int(l.V1.Y)}, image.Point{int(l.V2.X), int(l.V2.Y)},
1, 1, 1,
src, image.Point{0, 0})
}