testing bloom and motion blur

src/framework/graphics/graphics.cpp

@@ -49,6 +49,7 @@ void Graphics::init()
 #endif
 
     glEnable(GL_BLEND);
+    glClear(GL_ACCUM_BUFFER_BIT);
 
     m_emptyTexture = TexturePtr(new Texture);
 
@@ -82,6 +83,7 @@ bool Graphics::parseOption(const std::string& option)
 void Graphics::resize(const Size& size)
 {
     setViewportSize(size);
+    glClear(GL_ACCUM_BUFFER_BIT);
 
     // The projection matrix converts from Painter's coordinate system to GL's coordinate system
     //    * GL's viewport is 2x2, Painter's is width x height
@@ -111,16 +113,14 @@ void Graphics::beginRender()
 
 void Graphics::endRender()
 {
-    /*
     // this is a simple blur effect
     static Timer timer;
-    if(timer.ticksElapsed() >= 20) {
+    if(timer.ticksElapsed() >= 15) {
         glAccum(GL_MULT, 0.8);
         glAccum(GL_ACCUM, 0.2);
         timer.restart();
     }
     glAccum(GL_RETURN, 1);
-    */
 }
 
 void Graphics::beginClipping(const Rect& clipRect)

src/framework/platform/x11window.cpp

@@ -367,7 +367,10 @@ void X11Window::internalChooseGLVisual()
         GLX_USE_GL,
         GLX_RGBA,
         GLX_DOUBLEBUFFER,
-        GLX_STENCIL_SIZE, 1,
+        GLX_ACCUM_RED_SIZE, 8,
+        GLX_ACCUM_GREEN_SIZE, 8,
+        GLX_ACCUM_BLUE_SIZE, 8,
+        GLX_ACCUM_ALPHA_SIZE, 8,
         None
     };