Added camera to OpenGLSharedState

src/basics/Matrix4.h

@@ -4,6 +4,9 @@
 #include "basics_global.h"
 
 #include "Vector3.h"
+#ifdef QT_GUI_LIB
+#include <QMatrix4x4>
+#endif
 
 namespace paysages {
 namespace basics {
@@ -35,6 +38,15 @@ public:
 
     double getDeterminant() const;
 
+#ifdef QT_GUI_LIB
+    inline QMatrix4x4 toQMatrix() const {
+        return QMatrix4x4(a, b, c, d,
+                          e, f, g, h,
+                          i, j, k, l,
+                          m, n, o, p);
+    }
+#endif
+
 private:
     double a;
     double b;

src/definition/CameraDefinition.h

@@ -36,6 +36,7 @@ public:
     inline double getRoll() const {return roll;}
     inline Vector3 getDirection() const {return Vector3(direction);}
     inline Vector3 getDirectionNormalized() const {return forward;}
+    inline const Matrix4 &getTransformationMatrix() const {return projector;}
     inline VectorSpherical getDirectionSpherical() const {return direction;}
     inline CameraPerspective getPerspective() const {return perspective;}
 

src/render/opengl/OpenGLPart.cpp

@@ -49,36 +49,6 @@ void OpenGLPart::postInitialize()
     }
 }
 
-void OpenGLPart::updateCamera(CameraDefinition* camera)
-{
-    // Get camera info
-    Vector3 location = camera->getLocation();
-    Vector3 target = camera->getTarget();
-    Vector3 up = camera->getUpVector();
-    CameraPerspective perspective = camera->getPerspective();
-
-    QVector3D vlocation(location.x, location.y, location.z);
-
-    // Compute matrix
-    QMatrix4x4 transform;
-    transform.setToIdentity();
-    transform.lookAt(vlocation,
-                  QVector3D(target.x, target.y, target.z),
-                  QVector3D(up.x, up.y, up.z));
-
-    QMatrix4x4 projection;
-    projection.setToIdentity();
-    projection.perspective(perspective.yfov * 180.0 / M_PI, perspective.xratio, perspective.znear, perspective.zfar);
-
-    // Set in shaders
-    QMapIterator<QString, OpenGLShaderProgram*> i(shaders);
-    while (i.hasNext())
-    {
-        i.next();
-        i.value()->updateCamera(vlocation, projection * transform);
-    }
-}
-
 void OpenGLPart::updateScenery(bool onlyCommon)
 {
     // Let subclass do its own collecting

src/render/opengl/OpenGLPart.h

@@ -27,7 +27,6 @@ public:
     virtual void render() = 0;
 
     void postInitialize();
-    void updateCamera(CameraDefinition* camera);
     void updateScenery(bool onlyCommon=false);
 
 protected:

src/render/opengl/OpenGLRenderer.cpp

@@ -75,8 +75,26 @@ void OpenGLRenderer::paint()
 
 void OpenGLRenderer::cameraChangeEvent(CameraDefinition *camera)
 {
-    skybox->updateCamera(camera);
-    water->updateCamera(camera);
+    // Get camera info
+    Vector3 location = camera->getLocation();
+    Vector3 target = camera->getTarget();
+    Vector3 up = camera->getUpVector();
+    CameraPerspective perspective = camera->getPerspective();
+
+    // Compute matrix
+    QMatrix4x4 transform;
+    transform.setToIdentity();
+    transform.lookAt(QVector3D(location.x, location.y, location.z),
+                  QVector3D(target.x, target.y, target.z),
+                  QVector3D(up.x, up.y, up.z));
+
+    QMatrix4x4 projection;
+    projection.setToIdentity();
+    projection.perspective(perspective.yfov * 180.0 / M_PI, perspective.xratio, perspective.znear, perspective.zfar);
+
+    // Set in shaders
+    shared_state->set("cameraLocation", location);
+    shared_state->set("viewMatrix", projection * transform);
 }
 
 double OpenGLRenderer::getPrecision(const Vector3 &)

src/render/opengl/OpenGLShaderProgram.cpp

@@ -44,12 +44,6 @@ void OpenGLShaderProgram::compile()
     }
 }
 
-void OpenGLShaderProgram::updateCamera(const QVector3D& location, const QMatrix4x4& view)
-{
-    this->camera_location = location;
-    this->view = view;
-}
-
 void OpenGLShaderProgram::addTexture(QString sampler_name, Texture2D* texture)
 {
     GLuint texid;
@@ -187,20 +181,6 @@ void OpenGLShaderProgram::bind()
 
     renderer->getSharedState()->apply(this);
 
-    // TODO Keep locations in cache
-
-    int viewMatrix = program->uniformLocation("viewMatrix");
-    if (viewMatrix >= 0)
-    {
-        program->setUniformValue(viewMatrix, view);
-    }
-
-    int cameraLocation = program->uniformLocation("cameraLocation");
-    if (cameraLocation >= 0)
-    {
-        program->setUniformValue(cameraLocation, camera_location);
-    }
-
     QMapIterator<QString, QPair<int, unsigned int> > iter(textures);
     int i = 0;
     while (iter.hasNext())

src/render/opengl/OpenGLShaderProgram.h

@@ -25,8 +25,6 @@ public:
     void addFragmentSource(QString path);
     void compile();
 
-    void updateCamera(const QVector3D& location, const QMatrix4x4& view);
-
     void addTexture(QString sampler_name, Texture2D* texture);
     void addTexture(QString sampler_name, Texture3D* texture);
     void addTexture(QString sampler_name, Texture4D* texture);
@@ -44,9 +42,6 @@ private:
 
     OpenGLRenderer* renderer;
 
-    QMatrix4x4 view;
-    QVector3D camera_location;
-
     QString name;
     QOpenGLShaderProgram* program;
     QOpenGLFunctions_3_2_Core* functions;

src/render/opengl/OpenGLSharedState.h

@@ -33,7 +33,9 @@ public:
     inline void set(const std::string &name, const Texture4D *texture) {get(name)->set(texture);}
     inline void set(const std::string &name, float value) {get(name)->set(value);}
     inline void set(const std::string &name, const Vector3 &vector) {get(name)->set(vector);}
+    inline void set(const std::string &name, const QVector3D &vector) {get(name)->set(vector);}
     inline void set(const std::string &name, const Matrix4 &matrix) {get(name)->set(matrix);}
+    inline void set(const std::string &name, const QMatrix4x4 &matrix) {get(name)->set(matrix);}
     inline void set(const std::string &name, const Color &color) {get(name)->set(color);}
 
 private:

src/render/opengl/OpenGLVariable.cpp

@@ -4,6 +4,7 @@
 #include <QOpenGLShaderProgram>
 #include "OpenGLShaderProgram.h"
 #include "Vector3.h"
+#include "Matrix4.h"
 #include "Color.h"
 
 OpenGLVariable::OpenGLVariable(const std::string &name):
@@ -27,6 +28,9 @@ void OpenGLVariable::apply(OpenGLShaderProgram *program)
     case TYPE_VECTOR3:
         pr->setUniformValue(name.c_str(), value_vector3);
         break;
+    case TYPE_MATRIX4:
+        pr->setUniformValue(name.c_str(), value_matrix4);
+        break;
     case TYPE_NONE:
         break;
     }
@@ -42,10 +46,28 @@ void OpenGLVariable::set(float value)
 
 void OpenGLVariable::set(const Vector3 &vector)
 {
-    assert(type == TYPE_NONE or type == TYPE_COLOR);
+    set(QVector3D(vector.x, vector.y, vector.z));
+}
+
+void OpenGLVariable::set(const QVector3D &vector)
+{
+    assert(type == TYPE_NONE or type == TYPE_VECTOR3);
 
     type = TYPE_VECTOR3;
-    value_vector3 = QVector3D(vector.x, vector.y, vector.z);
+    value_vector3 = vector;
+}
+
+void OpenGLVariable::set(const Matrix4 &matrix)
+{
+    set(matrix.toQMatrix());
+}
+
+void OpenGLVariable::set(const QMatrix4x4 &matrix)
+{
+    assert(type == TYPE_NONE or type == TYPE_MATRIX4);
+
+    type = TYPE_MATRIX4;
+    value_matrix4 = matrix;
 }
 
 void OpenGLVariable::set(const Color &color)

src/render/opengl/OpenGLVariable.h

@@ -5,6 +5,7 @@
 
 #include <QColor>
 #include <QVector3D>
+#include <QMatrix4x4>
 
 namespace paysages {
 namespace opengl {
@@ -36,7 +37,9 @@ public:
     void set(const Texture4D *texture);
     void set(float value);
     void set(const Vector3 &vector);
+    void set(const QVector3D &vector);
     void set(const Matrix4 &matrix);
+    void set(const QMatrix4x4 &matrix);
     void set(const Color &color);
 
 private:
@@ -46,6 +49,7 @@ private:
     float value_float;
     QColor value_color;
     QVector3D value_vector3;
+    QMatrix4x4 value_matrix4;
 };
 
 }