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#include "ModelNodeBase.h"
namespace model
{
ModelNodeBase::ModelNodeBase() :
_attachedToShaders(false)
{}
scene::INode::Type ModelNodeBase::getNodeType() const
{
return Type::Model;
}
void ModelNodeBase::onPreRender(const VolumeTest& volume)
{
assert(_renderEntity);
// Attach renderables (or do nothing if everything is up to date)
attachToShaders();
}
void ModelNodeBase::renderHighlights(IRenderableCollector& collector, const VolumeTest& volume)
{
auto identity = Matrix4::getIdentity();
for (const auto& surface : _renderableSurfaces)
{
collector.addHighlightRenderable(*surface, identity);
}
}
std::size_t ModelNodeBase::getHighlightFlags()
{
return Highlight::NoHighlight; // models are never highlighted themselves
}
void ModelNodeBase::onInsertIntoScene(scene::IMapRootNode& root)
{
// Renderables will acquire their shaders in onPreRender
createRenderableSurfaces();
Node::onInsertIntoScene(root);
}
void ModelNodeBase::onRemoveFromScene(scene::IMapRootNode& root)
{
destroyRenderableSurfaces();
Node::onRemoveFromScene(root);
}
void ModelNodeBase::emplaceRenderableSurface(RenderableModelSurface::Ptr&& surface)
{
_renderableSurfaces.emplace_back(std::move(surface));
}
void ModelNodeBase::destroyRenderableSurfaces()
{
detachFromShaders();
_renderableSurfaces.clear();
}
void ModelNodeBase::detachFromShaders()
{
// Detach any existing surfaces. In case we need them again,
// the node will re-attach in the next pre-render phase
for (auto& surface : _renderableSurfaces)
{
surface->detach();
}
_attachedToShaders = false;
}
void ModelNodeBase::attachToShaders()
{
// Refuse to attach without a render entity
if (_attachedToShaders || !_renderEntity) return;
auto renderSystem = _renderSystem.lock();
if (!renderSystem) return;
for (auto& surface : _renderableSurfaces)
{
auto shader = surface->captureFillShader(*renderSystem);
// Skip filtered materials - the wireframe shader itself is always visible
// so filtered surfaces need to be kept from attaching their geometry
if (!shader->isVisible()) continue;
// Solid mode
surface->attachToShader(shader);
// For orthoview rendering we need a wireframe shader
surface->attachToShader(getRenderState() == RenderState::Active ?
surface->captureWireShader(*renderSystem) : _inactiveShader);
// Attach to the render entity for lighting mode rendering
surface->attachToEntity(_renderEntity, shader);
}
_attachedToShaders = true;
}
void ModelNodeBase::queueRenderableUpdate()
{
for (auto& surface : _renderableSurfaces)
{
surface->queueUpdate();
}
}
void ModelNodeBase::transformChangedLocal()
{
Node::transformChangedLocal();
for (auto& surface : _renderableSurfaces)
{
surface->boundsChanged();
}
}
void ModelNodeBase::onVisibilityChanged(bool isVisibleNow)
{
Node::onVisibilityChanged(isVisibleNow);
if (isVisibleNow)
{
attachToShaders();
}
else
{
detachFromShaders();
}
}
void ModelNodeBase::onFiltersChanged()
{
Node::onFiltersChanged();
// When filters change, some of our surfaces might come into view or end up hidden
// Detach existing surfaces, the next rendering pass will rebuild them
detachFromShaders();
}
void ModelNodeBase::setRenderSystem(const RenderSystemPtr& renderSystem)
{
Node::setRenderSystem(renderSystem);
if (renderSystem)
{
_inactiveShader = renderSystem->capture(BuiltInShaderType::WireframeInactive);
}
else
{
_inactiveShader.reset();
}
}
void ModelNodeBase::onRenderStateChanged()
{
Node::onRenderStateChanged();
detachFromShaders();
}
}
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