Changeset 7981 in orxonox.OLD for branches/atmospheric_engine/src/world_entities

Timestamp:

May 30, 2006, 3:30:45 PM (18 years ago)

Author:

hdavid

Message:

branches/atmospheric_engine: billboard

File:

• branches/atmospheric_engine/src/world_entities/effects/billboard.cc (modified) (4 diffs)

branches/atmospheric_engine/src/world_entities/effects/billboard.cc

@@ -63 +63 @@
 
   this->material = new Material();
-  this->setTexture("maps/lightning_bolt.png");
-  this->setAbsCoor(0, 0, 0);
+  //this->setTexture("maps/lightning_bolt.png");
+  //this->setAbsCoor(0, 0, 0);
   this->setVisibiliy(true);
   this->setSize(10, 10);
@@ -141 +141 @@
     return;
 
-//PRINTF(0)("draw\n");
-
   glPushMatrix();
 
@@ -148 +146 @@
   glTranslatef(0,0,0);
   this->material->select();
-
+  /*
   glBegin(GL_QUADS);
   glTexCoord2f(1.0f, 1.0f); glVertex3f(-sizeX/2, -sizeY/2,  0.0f);
@@ -155 +153 @@
   glTexCoord2f(1.0f, 0.0f); glVertex3f(-sizeX/2,  sizeY/2,  0.0f);
   glEnd();
-
+  */
+  
+  const PNode* camera = State::getCameraNode();  //!< @todo MUST be different
+  Vector cameraPos = camera->getAbsCoor();
+  Vector cameraTargetPos = State::getCameraTargetNode()->getAbsCoor();
+  Vector view = cameraTargetPos - cameraPos;
+  Vector up = Vector(0, 1, 0);
+  up = camera->getAbsDir().apply(up);
+  Vector h = up.cross(view);
+  Vector v = h.cross(view);
+  h.normalize();
+  v.normalize();
+  
+  float radius = 5;
+  v *= .5 * radius;
+  h *= .5 * radius;
+  /*
+  glBegin(GL_TRIANGLE_STRIP);
+  glTexCoord2i(1, 1);
+  glVertex3f(0 - h.x - v.x,
+             0 - h.y - v.y,
+             0 - h.z - v.z);
+  glTexCoord2i(0, 1);
+  glVertex3f(0 - h.x + v.x,
+             0 - h.y + v.y,
+             0 - h.z + v.z);
+  glTexCoord2i(1, 0);
+  glVertex3f(0 + h.x - v.x,
+             0 + h.y - v.y,
+             0 + h.z - v.z);
+  glTexCoord2i(0, 0);
+  glVertex3f(0 + h.x + v.x,
+             0 + h.y + v.y,
+             0 + h.z + v.z);
+
+  glEnd();*/
+  
+  glBegin(GL_QUADS);
+  glTexCoord2f(0.0f, 0.0f);
+  glVertex3f(0 - h.x - v.x,
+              0 - h.y - v.y,
+              0 - h.z - v.z);
+  glTexCoord2f(1.0f, 0.0f);
+  glVertex3f( 0 + h.x - v.x,
+              0 + h.y - v.y,
+              0 + h.z - v.z);
+  glTexCoord2f(1.0f, 1.0f);
+  glVertex3f(0 + h.x + v.x,
+             0 + h.y + v.y,
+             0 + h.z + v.z);
+  glTexCoord2f(0.0f, 1.0f);
+  glVertex3f(0 - h.x + v.x,
+             0 - h.y + v.y,
+             0 - h.z + v.z);
+  glEnd();
+  
+  
   glPopMatrix();
 }