void Text3D::UpdateGeometry(const FrameInfo& frame)
{
if (fontDataLost_)
{
// Re-evaluation of the text triggers the font face to reload itself
UpdateTextBatches();
UpdateTextMaterials();
fontDataLost_ = false;
}
// In case is being rendered from multiple views, recalculate camera facing & fixed size
if (faceCameraMode_ != FC_NONE || fixedScreenSize_)
CalculateFixedScreenSize(frame);
if (geometryDirty_)
{
for (unsigned i = 0; i < batches_.Size() && i < uiBatches_.Size(); ++i)
{
Geometry* geometry = geometries_[i];
geometry->SetDrawRange(TRIANGLE_LIST, 0, 0, uiBatches_[i].vertexStart_,
(uiBatches_[i].vertexEnd_ - uiBatches_[i].vertexStart_) / UI_VERTEX_SIZE);
}
}
if ((geometryDirty_ || vertexBuffer_->IsDataLost()) && uiVertexData_.Size())
{
unsigned vertexCount = uiVertexData_.Size() / UI_VERTEX_SIZE;
if (vertexBuffer_->GetVertexCount() != vertexCount)
vertexBuffer_->SetSize(vertexCount, MASK_POSITION | MASK_COLOR | MASK_TEXCOORD1);
vertexBuffer_->SetData(&uiVertexData_[0]);
}
geometryDirty_ = false;
}
void BillboardSet::UpdateBatches(const FrameInfo& frame)
{
// If beginning a new frame, assume no sorting first
if (frame.frameNumber_ != sortFrameNumber_)
{
sortThisFrame_ = false;
sortFrameNumber_ = frame.frameNumber_;
}
Vector3 worldPos = node_->GetWorldPosition();
Vector3 offset = (worldPos - frame.camera_->GetNode()->GetWorldPosition());
// Sort if position relative to camera has changed
if (offset != previousOffset_ || frame.camera_->IsOrthographic() != hasOrthoCamera_)
{
if (sorted_)
sortThisFrame_ = true;
if (faceCameraMode_ == FC_DIRECTION)
bufferDirty_ = true;
hasOrthoCamera_ = frame.camera_->IsOrthographic();
}
// Calculate fixed screen size scale factor for billboards. Will not dirty the buffer unless actually changed
if (fixedScreenSize_)
CalculateFixedScreenSize(frame);
distance_ = frame.camera_->GetDistance(GetWorldBoundingBox().Center());
// Calculate scaled distance for animation LOD
float scale = GetWorldBoundingBox().Size().DotProduct(DOT_SCALE);
// If there are no billboards, the size becomes zero, and LOD'ed updates no longer happen. Disable LOD in that case
if (scale > M_EPSILON)
lodDistance_ = frame.camera_->GetLodDistance(distance_, scale, lodBias_);
else
lodDistance_ = 0.0f;
batches_[0].distance_ = distance_;
batches_[0].numWorldTransforms_ = 2;
// Billboard positioning
transforms_[0] = relative_ ? node_->GetWorldTransform() : Matrix3x4::IDENTITY;
// Billboard rotation
transforms_[1] = Matrix3x4(Vector3::ZERO, faceCameraMode_ != FC_NONE ? frame.camera_->GetFaceCameraRotation(
node_->GetWorldPosition(), node_->GetWorldRotation(), faceCameraMode_, minAngle_) : node_->GetWorldRotation(), Vector3::ONE);
}
void BillboardSet::UpdateGeometry(const FrameInfo& frame)
{
// If rendering from multiple views and fixed screen size is in use, re-update scale factors before each render
if (fixedScreenSize_ && viewCameras_.Size() > 1)
CalculateFixedScreenSize(frame);
// If using camera facing, re-update the rotation for the current view now
if (faceCameraMode_ != FC_NONE)
{
transforms_[1] = Matrix3x4(Vector3::ZERO, frame.camera_->GetFaceCameraRotation(node_->GetWorldPosition(),
node_->GetWorldRotation(), faceCameraMode_, minAngle_), Vector3::ONE);
}
if (bufferSizeDirty_ || indexBuffer_->IsDataLost())
UpdateBufferSize();
if (bufferDirty_ || sortThisFrame_ || vertexBuffer_->IsDataLost())
UpdateVertexBuffer(frame);
}
void Text3D::UpdateBatches(const FrameInfo& frame)
{
distance_ = frame.camera_->GetDistance(GetWorldBoundingBox().Center());
if (faceCameraMode_ != FC_NONE || fixedScreenSize_)
CalculateFixedScreenSize(frame);
for (unsigned i = 0; i < batches_.Size(); ++i)
{
batches_[i].distance_ = distance_;
batches_[i].worldTransform_ = faceCameraMode_ != FC_NONE ? &customWorldTransform_ : &node_->GetWorldTransform();
}
for (unsigned i = 0; i < uiBatches_.Size(); ++i)
{
if (uiBatches_[i].texture_ && uiBatches_[i].texture_->IsDataLost())
{
fontDataLost_ = true;
break;
}
}
}
