public void render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
glLoadIdentity(); // Reset The matrix
//////////// *** NEW *** ////////// *** NEW *** ///////////// *** NEW *** ////////////////////
// Give OpenGL our position, then view, then up vector
gluLookAt(0, 1.5f, 100, 0, .5f, 0, 0, 1, 0);
// We want the model to rotate around the axis so we give it a rotation
// value, then increase/decrease it. You can rotate right of left with the arrow keys.
glRotatef(g_RotateX, 0, 1.0f, 0); // Rotate the object around the Y-Axis
g_RotateX += g_RotationSpeed; // Increase the speed of rotation
// Make sure we have valid objects just in case. (size() is in the vector class)
if (g_World.getObject().size() <= 0) return;
for (int i = 0; i < g_World.getObject().size(); i++) {
// Get the current object that we are displaying
Object3d pObject = g_World.getObject(i);
glBindTexture(GL_TEXTURE_2D, pObject.getMaterialID());
// Render lines or normal triangles mode, depending on the global variable
glBegin(g_ViewMode);
// Go through all of the faces (polygons) of the object and draw them
for (int j = 0; j < pObject.getNumFaces(); j++) {
// Go through each corner of the triangle and draw it.
for (int whichVertex = 0; whichVertex < 3; whichVertex++) {
// Get the index for each point in the face
int index = pObject.getFace(j).getVertices(whichVertex);
// Get the index for each texture coord in the face
int index2 = pObject.getFace(j).getTexCoords(whichVertex);
// Give OpenGL the normal for this vertex. Notice that we put a
// - sign in front. It appears that because of the ordering of Quake2's
// polygons, we need to invert the normal
// glNormal3f(-pObject.getNormal(index).x, -pObject.getNormal(index).y,
// -pObject.getNormal(index).z);
// Make sure there was a UVW map applied to the object or else it won't have tex coords.
if (pObject.getNumTexcoords() > 0) {
glTexCoord2f(pObject.getTexcoords(index2).s, pObject.getTexcoords(index2).t);
}
// Pass in the current vertex of the object (Corner of current face)
glVertex3f(
pObject.getVertices(index).x,
pObject.getVertices(index).y,
pObject.getVertices(index).z);
}
}
glEnd();
}
// Render the cubed nodes to visualize the octree (in wire frame mode)
if (g_bDisplayNodes) {
// TOctree.g_Debug.renderDebugLines();
for (int j = 0; j < g_World.getObject().size(); j++) {
g_World.getObject(j).drawBoundingBox();
}
}
}
