MeshViewer: better double-buffering

darcs-hash:20090128210953-5007d-169c971257a43a95ee7e49d83059c0328eaae0a8.gz

diff --git a/src/edu/berkeley/qfat/MeshViewer.java b/src/edu/berkeley/qfat/MeshViewer.java
index a0e236d..2fe4200 100644 (file)
--- a/src/edu/berkeley/qfat/MeshViewer.java
+++ b/src/edu/berkeley/qfat/MeshViewer.java
@@ -50,6 +50,9 @@ public class MeshViewer extends JPanel implements GLEventListener, MouseListener
 
     public synchronized void init(GLAutoDrawable gld) {
         GL gl = glcanvas.getGL();//gld.getGL();
+
+        gl.glEnable(gl.GL_DOUBLEBUFFER);
+
         gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
         gl.glViewport(0, 0, 500, 300);
         gl.glEnable(GL.GL_DEPTH_TEST);
@@ -86,6 +89,14 @@ public class MeshViewer extends JPanel implements GLEventListener, MouseListener
 
         GL gl = glcanvas.getGL();//drawable.getGL();
         GLU glu = new GLU();
+        gl.glDrawBuffer(GL.GL_BACK);
+
+        if (updateVisibilities) {
+            updateVisibilities = false;
+            // update vertex visibilities
+            updateVisibility(gl);
+        }
+        gl.glDrawBuffer(GL.GL_BACK);
 
         if (!mouseInside) gl.glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
         else gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
@@ -185,12 +196,6 @@ public class MeshViewer extends JPanel implements GLEventListener, MouseListener
 
         projection = Matrix.getProjectionMatrix(gl);
 
-        if (updateVisibilities) {
-            updateVisibilities = false;
-            // update vertex visibilities
-            updateVisibility(gl);
-        }
-
         if (updateClosest) {
             updateClosest = false;
             double dist = Double.MAX_VALUE;
@@ -224,6 +229,9 @@ public class MeshViewer extends JPanel implements GLEventListener, MouseListener
                         }
                     }
         }
+        gl.glFlush();
+        glcanvas.setAutoSwapBufferMode(false);
+        glcanvas.swapBuffers();
     }
 
     protected synchronized void updateVisibility(GL gl) {