shithub: 3dee

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add a triangular basis and clamp the fov to [1,180]°.

--- /dev/null

+++ b/mdl/tribasis.obj

@@ -1,0 +1,11 @@

+mtllib basis.mtl

+v 0 0 0

+v 1 0 0

+v 0 1 0

+v 0 0 1

+usemtl x

+f 1 2 3

+usemtl y

+f 1 3 4

+usemtl z

+f 1 4 2

--- a/vis.c

+++ b/vis.c

@@ -429,7 +429,7 @@

 void

 zoomin(void)

 {

-	maincam->fov = fclamp(maincam->fov - 1*DEG, 1*DEG, 359*DEG);

+	maincam->fov = fclamp(maincam->fov - 1*DEG, 1*DEG, 180*DEG);

 	reloadcamera(maincam);

 }

@@ -436,7 +436,7 @@

 void

 zoomout(void)

 {

-	maincam->fov = fclamp(maincam->fov + 1*DEG, 1*DEG, 359*DEG);

+	maincam->fov = fclamp(maincam->fov + 1*DEG, 1*DEG, 180*DEG);

 	reloadcamera(maincam);

 }