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List:       kde-commits
Subject:    playground/libs/kgllib/examples/earth
From:       Rivo Laks <rivolaks () hot ! ee>
Date:       2008-02-01 15:56:47
Message-ID: 1201881407.301473.6207.nullmailer () svn ! kde ! org
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SVN commit 769504 by rivol:

Add some simple stars

 M  +26 -1     earth.cpp  
 M  +2 -0      earth.h  


--- trunk/playground/libs/kgllib/examples/earth/earth.cpp #769503:769504
@@ -37,7 +37,7 @@
 Earth::Earth() : GLWidget()
 {
     mDiffuseTex = 0;
-    mMesh = 0;
+    mMesh = mStarsMesh = 0;
     mRotation = 0;
 }
 
@@ -45,6 +45,7 @@
 {
     delete mDiffuseTex;
     delete mMesh;
+    delete mStarsMesh;
 }
 
 void Earth::mousePressEvent(QMouseEvent* e)
@@ -75,6 +76,8 @@
     mMesh = createMesh(6);
     mMesh->setTexture(mDiffuseTex);
     glEnable(GL_CULL_FACE);
+
+    mStarsMesh = createStarMesh(2000);
 }
 
 void Earth::render()
@@ -84,6 +87,8 @@
     // Rotate 20 degrees/sec
     mRotation += fpsCounter()->timeElapsed() * 20;
     glRotatef(mRotation, 0, 1, 0);
+    mStarsMesh->render();
+    glColor4f(1, 1, 1, 1);
     mMesh->render();
 
     int ty = 17;
@@ -192,5 +197,25 @@
     return m;
 }
 
+Mesh* Earth::createStarMesh(int stars)
+{
+    Vector3f* vertices = new Vector3f[stars];
+    Vector3f* colors = new Vector3f[stars];
 
+    for (int i = 0; i < stars; i++) {
+        vertices[i].loadRandomUnit();
+        vertices[i] *= 50;
+        float c = 0.1f + rand()/(float)RAND_MAX * 0.6;
+        colors[i].x() = colors[i].y() = colors[i].z() = c;
+    }
+
+    Mesh* m = new Mesh();
+    m->setVertices(vertices);
+    m->setColors(colors);
+    m->setVertexCount(stars);
+    m->setPrimitiveType(GL_POINTS);
+    return m;
+}
+
+
 #include "earth.moc"
--- trunk/playground/libs/kgllib/examples/earth/earth.h #769503:769504
@@ -45,9 +45,11 @@
     virtual void mouseMoveEvent(QMouseEvent* e);
 
     Mesh* createMesh(int detail);
+    Mesh* createStarMesh(int stars);
 
 private:
     Mesh* mMesh;
+    Mesh* mStarsMesh;
     TrackBall trackball;
     Texture* mDiffuseTex;
     float mRotation;
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