void CInstancedMeshSceneNode::updateInstances()
{
if (!baseMesh || baseMesh->getMeshBuffer(0)->getVertexBufferCount() != 2)
return;
IMeshBuffer* renderBuffer = baseMesh->getMeshBuffer(0);
box.reset(0, 0, 0);
const u32 size = instanceNodeArray.size();
renderBuffer->getVertexBuffer(1)->clear();
renderBuffer->getVertexBuffer(1)->setDirty();
renderBuffer->getVertexBuffer(1)->set_used(size);
for (u32 i = 0; i < size; ++i)
{
core::aabbox3df instanceBox = renderBuffer->getBoundingBox();
instanceNodeArray[i]->getAbsoluteTransformation().transformBoxEx(instanceBox);
if (!SceneManager->isCulled(instanceNodeArray[i]))
renderBuffer->getVertexBuffer(1)->setVertex(i, &instanceNodeArray[i]->getAbsoluteTransformation());
box.addInternalPoint(instanceNodeArray[i]->getAbsolutePosition());
}
renderBuffer->getVertexBuffer(1)->setDirty();
}
//! renders the node.
void CInstancedMeshSceneNode::render()
{
if (!IsVisible || !SceneManager->getActiveCamera())
return;
if (!baseMesh || baseMesh->getMeshBuffer(0)->getVertexBuffer(1)->getVertexCount() == 0)
return;
IMeshBuffer* renderBuffer = baseMesh->getMeshBuffer(0);
video::IVideoDriver* driver = SceneManager->getVideoDriver();
driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
driver->setMaterial(readOnlyMaterial ? material : renderBuffer->getMaterial());
driver->drawMeshBuffer(renderBuffer);
// for debug purposes only:
if (DebugDataVisible)
{
video::SMaterial m;
m.Lighting = false;
driver->setMaterial(m);
if (DebugDataVisible & scene::EDS_BBOX)
driver->draw3DBox(box, video::SColor(255, 255, 255, 255));
if (DebugDataVisible & scene::EDS_BBOX_BUFFERS)
{
const u32 size = instanceNodeArray.size();
for (u32 i = 0; i < size; ++i)
{
core::aabbox3df box = renderBuffer->getBoundingBox();
driver->setTransform(video::ETS_WORLD, instanceNodeArray[i]->getAbsoluteTransformation());
driver->draw3DBox(box, video::SColor(255, 255, 255, 255));
}
}
}
}