fix #80 #76

JuliaGL · Nov 17, 2017 · 79cb6e3 · 79cb6e3
1 parent f3cd0ff
commit 79cb6e3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/GLCamera.jl b/src/GLCamera.jl
@@ -493,7 +493,7 @@ function PerspectiveCamera(
         right_v = normalize(cross(up_v, dir))
         up_v  = normalize(cross(dir, right_v))
 
-        rotation = rotate_cam(theta_v, right_v, Vec3f0(0,0,1), dir)
+        rotation = rotate_cam(theta_v, right_v, Vec3f0(0, 0, sign(up_v[3])), dir)
         r_eyepos = lookat_v + rotation*(eyepos_v - lookat_v)
         r_up = normalize(rotation*up_v)
         push!(eyeposition, r_eyepos)