added some test/improvements

#13

boxtest.sdf

@@ -25,7 +25,7 @@ define light ambient amb 0.05 0.1 0.05
 define light diffuse sun 0 50 -44 1.0 1.0 1.0
 
 # camera
-define camera eye 60.0 0 0 0
+define camera eye 60.0 10 0 0
 # camera xform
 transform eye rotate -45 0 1 0
 transform eye translate 100 0 100

framework/Camera.cpp

@@ -9,19 +9,20 @@
 #define GLM_FORCE_RADIANS
 #include "glm/detail/type_vec.hpp"
 #include "glm/gtc/matrix_transform.hpp"
+#include <iostream>
 
 Camera::Camera():
     name("unnamed"),
     fovX(100),
-    transformation(glm::mat4x4()),
-    transformation_inv(glm::mat4x4())
+    transformation(glm::mat4()),
+    transformation_inv(glm::mat4())
 {}
 
 Camera::Camera(std::string const& name, const int fovX):
     name(name),
     fovX(fovX),
-    transformation(glm::mat4x4()),
-    transformation_inv(glm::mat4x4())
+    transformation(glm::mat4()),
+    transformation_inv(glm::mat4())
 {}
 
 void Camera::translate(glm::vec3 const& transl) {

framework/renderer.cpp

@@ -88,7 +88,8 @@ void Renderer::render() {
                     }
                     p.color /=scene_.antialiase;
                 } else {
-                    Ray ray(glm::vec3(scene_.camera.GetTransformation_inv() * glm::vec4(0,0,0,1)));
+                    //Ray ray(glm::vec3(scene_.camera.GetTransformation() * glm::vec4(0,0,0,1)));
+                    Ray ray;
                     ray.direction.x = -scene_.resX/2.0f+x; 
                     ray.direction.y = -scene_.resY/2.0f+y;
                     ray.direction.z = d;