Method prepRenderImage

Engine/source/T3D/examples/renderShapeExample.cpp:224–273

}

void RenderShapeExample::prepRenderImage( SceneRenderState *state )
{
   // Make sure we have a TSShapeInstance
   if ( !mShapeInstance )
      return;

   // Calculate the distance of this object from the camera
   Point3F cameraOffset;
   getRenderTransform().getColumn( 3, &cameraOffset );
   cameraOffset -= state->getDiffuseCameraPosition();
   F32 dist = cameraOffset.len();
   if ( dist < 0.01f )
      dist = 0.01f;

   // Set up the LOD for the shape
   F32 invScale = ( 1.0f / getMax( getMax( mObjScale.x, mObjScale.y ), mObjScale.z ) );

   mShapeInstance->setDetailFromDistance( state, dist * invScale );

   // Make sure we have a valid level of detail
   if ( mShapeInstance->getCurrentDetail() < 0 )
      return;

   // GFXTransformSaver is a handy helper class that restores
   // the current GFX matrices to their original values when
   // it goes out of scope at the end of the function
   GFXTransformSaver saver;

   // Set up our TS render state      
   TSRenderState rdata;
   rdata.setSceneState( state );
   rdata.setFadeOverride( 1.0f );

   // We might have some forward lit materials
   // so pass down a query to gather lights.
   LightQuery query;
   query.init( getWorldSphere() );
   rdata.setLightQuery( &query );

   // Set the world matrix to the objects render transform
   MatrixF mat = getRenderTransform();
   mat.scale( mObjScale );
   GFX->setWorldMatrix( mat );

   // Animate the the shape
   mShapeInstance->animate();

   // Allow the shape to submit the RenderInst(s) for itself
   mShapeInstance->render( rdata );
}