Revert "playing more with camera."

This reverts commit 55274ec3cf.

data/shader/gameobjects.frag

@@ -19,7 +19,7 @@ void main()
   vec3 Eye       = normalize(-vertex);
   vec3 Reflected = normalize(reflect( -lightPosition, normal));
 
-  vec3 IAmbient  = vec3(0.2f);
+  vec3 IAmbient  = vec3(0.05f);
 
   if (materialKind == 6) {
       // sun: shines by itself

game/renderer_polygon_3d/camera.hpp

@@ -13,10 +13,7 @@ namespace endofthejedi {
 
     class Camera {
         public:
-            Camera()
+            Camera() : m_aspectRatio(1.0), m_zoom(1.0), m_position(0.0, 0.0, 0.0), m_angles(0.0, 0.0, 0.0), m_dirty(true)
-                : m_aspectRatio(1.0), m_fov(util::deg2rad(90.0))
-                , m_zoom(1.0), m_position(0.0, 0.0, 0.0), m_angles(0.0, 0.0, 0.0)
-                , m_dirty(true)
             {
             }
 
@@ -25,7 +22,7 @@ namespace endofthejedi {
         // << 1 scales down
         // 1 is neutral
         // >> 1 makes things bigger
-        void setZoom(float zoom)
+        void setCameraZoom(float zoom)
         {
             if (zoom != m_zoom) {
                 m_zoom = zoom;
@@ -33,18 +30,8 @@ namespace endofthejedi {
             }
         }
 
-        // set field of view.
-        // degree or radian? find it out.
-        void setFov(float fov)
-        {
-            if (fov != m_fov) {
-                m_fov = fov;
-                m_dirty = true;
-            }
-        }
-
         // position of the camera in world space
-        void setPosition(const glm::vec3 &pos)
+        void setCameraPosition(const glm::vec3 &pos)
         {
             if (pos != m_position) {
                 m_position = pos;
@@ -53,7 +40,7 @@ namespace endofthejedi {
         }
 
         // some angles (in rad) for the camera.
-        void setAngles(const glm::vec3 &angles)
+        void setCameraAngles(const glm::vec3 &angles)
         {
             if (angles != m_angles) {
                 m_angles = angles;
@@ -62,17 +49,17 @@ namespace endofthejedi {
         }
 
         // all three arguments.
-        void setPositionAnglesZoom(const glm::vec3 &position, const glm::vec3 &angles, float zoom)
+        void setCameraPositionAnglesZoom(const glm::vec3 &position, const glm::vec3 &angles, float zoom)
         {
-            setZoom(zoom);
+            setCameraZoom(zoom);
-            setPosition(position);
+            setCameraPosition(position);
-            setAngles(angles);
+            setCameraAngles(angles);
         }
 
-        float fov()                 const { return m_fov;         }
         float zoom()                const { return m_zoom;     }
         const glm::vec3 &position() const { return m_position; }
         const glm::vec3 &angles()   const { return m_angles;   }
+
         float aspectRatio() const { return m_aspectRatio; }
 
         void setAspectRatio(float r)
@@ -105,33 +92,14 @@ namespace endofthejedi {
 
             //float a = 2.0*M_PI*m_lastTime/10.0;
             //float s = glm::mod(m_lastTime, 5.0f)/1.0f;
-            view = glm::scale(view, glm::vec3(m_zoom, m_zoom, m_zoom));
             view = glm::translate(view, m_position);
-            view = glm::rotate(view, m_angles.x, glm::vec3(1.0f, 0.0f, 0.0f));
+            view = glm::scale(view, glm::vec3(m_zoom/m_aspectRatio, m_zoom, m_zoom));
-            view = glm::rotate(view, m_angles.y, glm::vec3(0.0f, 1.0f, 0.0f));
-            view = glm::rotate(view, m_angles.z, glm::vec3(0.0f, 0.0f, 1.0f));
 
-            // Generates a really hard-to-read matrix, but a normal, standard 4x4 matrix nonetheless
+            m_viewMatrix = view;
-            glm::mat4 projectionMatrix = glm::perspective(
-                    // The horizontal Field of View, in degrees : the amount of
-                    // "zoom". Think "camera lens". Usually between 90° (extra
-                    // wide) and 30° (quite zoomed in)
-                    m_fov,
-
-                    m_aspectRatio,  // aspect ratio
-                    0.1f,           // near clipping plane
-                    100.0f          // far clipping plane
-                    );
-
-
-
-            //m_viewMatrix = view;
-            m_viewMatrix = projectionMatrix * view;
         }
 
     private:
         float     m_aspectRatio;
-        float     m_fov;
         float     m_zoom;
         glm::vec3 m_position;
         glm::vec3 m_angles;

game/renderer_polygon_3d/renderer_polygon_3d.cpp

@@ -142,19 +142,7 @@ namespace endofthejedi {
         //std::cout<<"setting aspect ratio: " << m_aspectRatio << std::endl;
         glUniform1f(m_shader_game_objects.location("aspectRatio"), m_aspectRatio);
 
-        // test code to move the camera
-        float t = 2.0*M_PI*m_lastTime/10.0;
-        float r = 0.5;
-        glm::vec3 pos = glm::vec3(r*sin(t), r*cos(t), 0.0f);
-        m_camera.setPosition(pos);
-
-        // test code to rotate the camera
-        float a = t;
-        m_camera.setAngles(glm::vec3(0.0f, a, 0.0f));
-
-        // must be done once each frame
         m_camera.refresh();
-
         auto *ptr = glm::value_ptr(m_camera.viewMatrix());
 
         glUniformMatrix4fv(m_shader_game_objects.location("view"), 1, GL_FALSE, ptr);