Developer Documentation
Renderer.cc
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42 /*===========================================================================*\
43 * *
44 * $Revision: 21016 $ *
45 * $LastChangedBy: schultz $ *
46 * $Date: 2015-07-16 16:48:42 +0200 (Do, 16 Jul 2015) $ *
47 * *
48 \*===========================================================================*/
49 
50 
51 #include "Renderer.hh"
52 
53 
55 #include <ACG/GL/ShaderCache.hh>
56 
57 
58 
59 // =================================================
60 
61 Renderer::Renderer()
62 {
63 }
64 
65 
66 Renderer::~Renderer()
67 {
68 }
69 
70 
71 void Renderer::initializePlugin()
72 {
73 }
74 
75 
76 
77 void Renderer::render(ACG::GLState* _glState, Viewer::ViewerProperties& _properties)
78 {
79  // collect renderobjects + prepare OpenGL state
81 
82  // render every object
83  for (int i = 0; i < getNumRenderObjects(); ++i)
85 
86  // restore common opengl state
87  // log window remains hidden otherwise
89 
90 // dumpRenderObjectsToFile("../../dump_ro.txt", &sortedObjects_[0]);
91 }
92 
93 
94 QString Renderer::checkOpenGL()
95 {
96  if (!ACG::openGLVersion(3, 2))
97  return QString("Insufficient OpenGL Version! OpenGL 3.2 or higher required");
98 
99  QString missing("");
100  if ( !ACG::checkExtensionSupported("GL_ARB_vertex_buffer_object") )
101  missing += "GL_ARB_vertex_buffer_object extension missing\n";
102 
103 #ifndef __APPLE__
104  if ( !ACG::checkExtensionSupported("GL_ARB_vertex_program") )
105  missing += "GL_ARB_vertex_program extension missing\n";
106 #endif
107 
108  return missing;
109 }
110 
111 
112 #if QT_VERSION < 0x050000
113  Q_EXPORT_PLUGIN2( shaderrenderer , Renderer );
114 #endif
115 
116 
virtual void renderObject(ACG::RenderObject *_obj, GLSL::Program *_prog=0, bool _constRenderStates=false, const std::vector< unsigned int > *_shaderModifiers=0)
Render one renderobject.
Definition: IRenderer.cc:1053
ACG::RenderObject * getRenderObject(int i)
Get render objects in the sorted list by index (not including overlay objects)
Definition: IRenderer.cc:1135
bool openGLVersion(const int _major, const int _minor)
Definition: gl.cc:95
int getNumRenderObjects() const
Get the number of collected render objects (not including overlay objects or gl4.2 line objects) ...
Definition: IRenderer.cc:1125
void drawMode(ACG::SceneGraph::DrawModes::DrawMode _mode)
set draw mode (No test if this mode is available!)
virtual void finishRenderingPipeline(bool _drawOverlay=true)
Draw overlay objects and reset OpenGL state.
Definition: IRenderer.cc:634
bool checkExtensionSupported(const std::string &_extension)
Definition: gl.cc:73
virtual void prepareRenderingPipeline(ACG::GLState *_glState, ACG::SceneGraph::DrawModes::DrawMode _drawMode, ACG::SceneGraph::BaseNode *_scenegraphRoot)
Prepares renderer and OpenGL for any draw-related calls including.
Definition: IRenderer.cc:522
ACG::SceneGraph::BaseNode * getSceneGraphRootNode()
get scenegraph root node