4 files changed, 37 insertions, 7 deletions
diff --git a/src/render/camera.cc b/src/render/camera.cc
index ba056d0..092cc26 100644
--- a/src/render/camera.cc
+++ b/src/render/camera.cc
@@ -374,6 +374,30 @@ void Camera::frustum()
 	gl::translate(-1.0f * camera_eye);
 }
 
+void Camera::frustum_default(float distance, float cx, float cy)
+{
+	// Change to the projection matrix and set our viewing volume large enough for the skysphere
+	gl::matrixmode(GL_PROJECTION);
+	gl::loadidentity();
+
+	// note: the factor 2.0f probably has to be 1.0f/frustum_size
+	gl::translate(2.0f*(-State::width() * 0.5f + cx)/State::width() , 2.0f*(State::height() * 0.5f - cy)/State::height(), 0.0f);
+
+	gl::frustum(-camera_frustum_size, camera_frustum_size, -camera_frustum_size/State::aspect(), camera_frustum_size/State::aspect(), camera_frustum_front, 1023.0f);
+
+	gl::matrixmode(GL_MODELVIEW);
+	gl::loadidentity();
+
+	// map world coordinates to opengl coordinates
+	gl::rotate(90.0f, 0.0f, 1.0f, 0.0f);
+	gl::rotate(-90.0f, 1.0f , 0.0f, 0.0f);
+
+	gl::translate(distance+1.0f, 0.0f, 0.0f);
+
+	// extra model rotation
+	gl::rotate(-core::application()->time() / 8.0f *360.0f , 0.0f, 0.0f, 1.0f);
+}
+
 void Camera::ortho()
 {
 	// switch to orthographic projection
diff --git a/src/render/camera.h b/src/render/camera.h
index 400c4b0..349aef8 100644
--- a/src/render/camera.h
+++ b/src/render/camera.h
@@ -43,11 +43,16 @@ public:
 	/// progress the camera
 	static void frame(float elapsed);
 
-	/// enable frustum projection
-	/** The frustum projection is used to draw the world
+	/// enable camera frustum projection
+	/** The camera frustum projection is used to draw the world
 	 */
 	static void frustum();
 
+	/// enable default frustum projection
+	/** The default frustum projection is used to draw Gui 3D models
+	 */
+	static void frustum_default(float distance, float cx, float cy);
+
 	/// enable orthographic projection
 	/** The ortographic projetion is used to draw the user interface
 	 */
diff --git a/src/render/draw.cc b/src/render/draw.cc
index 6762b64..5784347 100644
--- a/src/render/draw.cc
+++ b/src/render/draw.cc
@@ -539,12 +539,8 @@ void draw_fragment(model::Fragment *fragment, bool draw_details)
 
 void draw_model_fragments(model::Model *model,
 	const math::Color & color_primary, const math::Color & color_secondary,
-	const bool detail = true, const bool power = true, const float thrust = 0.0f)
+	const bool detail, const bool power, const float thrust)
 {
-
-	if (!model)
-		return;
-
 	// default material, lighted and geometry color
 	const model::Material *material = 0;
 	bool use_light = true;		// gl::disable(GL_LIGHTING) is set
diff --git a/src/render/draw.h b/src/render/draw.h
index bb42067..14a9767 100644
--- a/src/render/draw.h
+++ b/src/render/draw.h
@@ -26,6 +26,11 @@ void reset();
 /// draw a sphere
 void draw_sphere(math::Color const & color, float radius);
 
+/// draw a model
+void draw_model_fragments(model::Model *model,
+	const math::Color & color_primary, const math::Color & color_secondary,
+	const bool detail = true, const bool power = true, const float thrust = 0.0f);
+
 class Stats {
 public:
 	static void clear();