From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 16 Nov 2014 18:06:14 +0000 (+0200)
Subject: Fix orthographic projection matrix calculation
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=af7ffc9c72e30ae377476f76a51a6676dd6e89aa;p=libs%2Fgl.git

Fix orthographic projection matrix calculation

I made some last minute changes for c90cc1f and this got missed.
---

diff --git a/source/camera.cpp b/source/camera.cpp
index 6cbcf6f4..d119e1ef 100644
--- a/source/camera.cpp
+++ b/source/camera.cpp
@@ -105,7 +105,7 @@ void Camera::apply() const
 
 void Camera::update_projection_matrix()
 {
-	float frustum_h = tan(fov/2.0f)*clip_near;
+	float frustum_h = (fov!=Geometry::Angle<float>::zero() ? tan(fov/2.0f)*clip_near : height/2);
 	float frustum_w = frustum_h*aspect;
 	float left = frustum_w*(frustum_x-1.0f);
 	float right = frustum_w*(frustum_x+1.0f);