Why is my mesh not drawing if i do drawPrimitiveList after?

[shekarman]

Hi,

Very new to Irrlicht. I have a program that draws a mesh of triangles. In the device->run() loop, I added another draw command (to draw a primitive list of vertices) and that is now inhibiting the draw of the mesh. Here is the run loop:

Code: Select all

 
    while (device->run()) {
        driver->beginScene(true, true, video::SColor(0, 100, 100, 100));
        manager->drawAll();
        driver->drawVertexPrimitiveList(axes, 6, indices, 3, video::EVT_STANDARD, scene::EPT_LINES, EIT_16BIT);
        driver->endScene();
    }
 

If I comment out the drawVertexPrimitveList, I get the mesh to display but otherwise I only see the lines being displayed. What am I doing wrong?

Thanks.

[chronologicaldot]

Without seeing the rest of your code, it's hard to tell what you're doing wrong.
Generally speaking, though, you should create a scene node that draws the vertex primitive list for you. Then everything is streamed through the scene manager.
You can create a scene node that does your drawing by creating a class that inherits ISceneNode and implements OnRegisterSceneNode() and render().

Code: Select all

 
void MyClass::OnRegisterSceneNode()
{
SceneManager->registerNodeForRendering(this);
}
 
void MyClass::render()
{
SMaterial material;
material.Lighting = false; // This ensures it will show up even when the lights are gone
SceneManager->getVideoDriver()->setMaterial( material );
SceneManager->getVideoDriver()->drawVertexPrimitiveList( axes, 6, indices, 3, video::EVT_STANDARD, scene::EPT_LINES, EIT_16BIT );
}