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Tech ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES - Use vertex attributes and matrices in shaders.

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Shader: gouraud_light - Toolpaths and batched options in gcode preview
This commit is contained in:
enricoturri1966 2022-03-04 12:07:08 +01:00
parent c344a633ee
commit bca966039e
2 changed files with 234 additions and 95 deletions
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200
src/slic3r/GUI/GCodeViewer.cpp
View File

@ -685,7 +685,11 @@ void GCodeViewer::init()
#endif // !DISABLE_GCODEVIEWER_INSTANCED_MODELS
buffer.render_primitive_type = TBuffer::ERenderPrimitiveType::BatchedModel;
buffer.vertices.format = VBuffer::EFormat::PositionNormal3;
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
buffer.shader = "gouraud_light_attr";
#else
buffer.shader = "gouraud_light";
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
buffer.model.data = diamond(16);
buffer.model.color = option_color(type);
@ -699,7 +703,11 @@ void GCodeViewer::init()
case EMoveType::Extrude: {
buffer.render_primitive_type = TBuffer::ERenderPrimitiveType::Triangle;
buffer.vertices.format = VBuffer::EFormat::PositionNormal3;
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
buffer.shader = "gouraud_light_attr";
#else
buffer.shader = "gouraud_light";
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
break;
}
case EMoveType::Travel: {
@ -2925,15 +2933,15 @@ void GCodeViewer::refresh_render_paths(bool keep_sequential_current_first, bool
void GCodeViewer::render_toolpaths()
{
#if ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS
float point_size = 20.0f;
const float point_size = 20.0f;
#else
float point_size = 0.8f;
const float point_size = 0.8f;
#endif // ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS
std::array<float, 4> light_intensity = { 0.25f, 0.70f, 0.75f, 0.75f };
const std::array<float, 4> light_intensity = { 0.25f, 0.70f, 0.75f, 0.75f };
const Camera& camera = wxGetApp().plater()->get_camera();
double zoom = camera.get_zoom();
const double zoom = camera.get_zoom();
const std::array<int, 4>& viewport = camera.get_viewport();
float near_plane_height = camera.get_type() == Camera::EType::Perspective ? static_cast<float>(viewport[3]) / (2.0f * static_cast<float>(2.0 * std::tan(0.5 * Geometry::deg2rad(camera.get_fov())))) :
const float near_plane_height = camera.get_type() == Camera::EType::Perspective ? static_cast<float>(viewport[3]) / (2.0f * static_cast<float>(2.0 * std::tan(0.5 * Geometry::deg2rad(camera.get_fov())))) :
static_cast<float>(viewport[3]) * 0.0005;
auto shader_init_as_points = [zoom, point_size, near_plane_height](GLShaderProgram& shader) {
@ -3040,11 +3048,19 @@ void GCodeViewer::render_toolpaths()
}
};
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
#if ENABLE_GCODE_VIEWER_STATISTICS
auto render_as_batched_model = [this](TBuffer& buffer, GLShaderProgram& shader, int position_id, int normal_id) {
#else
auto render_as_batched_model = [](TBuffer& buffer, GLShaderProgram& shader, int position_id, int normal_id) {
#endif // ENABLE_GCODE_VIEWER_STATISTICS
#else
#if ENABLE_GCODE_VIEWER_STATISTICS
auto render_as_batched_model = [this](TBuffer& buffer, GLShaderProgram& shader) {
#else
auto render_as_batched_model = [](TBuffer& buffer, GLShaderProgram& shader) {
#endif // ENABLE_GCODE_VIEWER_STATISTICS
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
struct Range
{
@ -3053,30 +3069,44 @@ void GCodeViewer::render_toolpaths()
bool intersects(const Range& other) const { return (other.last < first || other.first > last) ? false : true; }
};
Range buffer_range = { 0, 0 };
size_t indices_per_instance = buffer.model.data.indices_count();
const size_t indices_per_instance = buffer.model.data.indices_count();
for (size_t j = 0; j < buffer.indices.size(); ++j) {
const IBuffer& i_buffer = buffer.indices[j];
buffer_range.last = buffer_range.first + i_buffer.count / indices_per_instance;
glsafe(::glBindBuffer(GL_ARRAY_BUFFER, i_buffer.vbo));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (position_id != -1) {
glsafe(::glVertexAttribPointer(position_id, buffer.vertices.position_size_floats(), GL_FLOAT, GL_FALSE, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.position_offset_bytes()));
glsafe(::glEnableVertexAttribArray(position_id));
}
#else
glsafe(::glVertexPointer(buffer.vertices.position_size_floats(), GL_FLOAT, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.position_offset_bytes()));
glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
bool has_normals = buffer.vertices.normal_size_floats() > 0;
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
const bool has_normals = buffer.vertices.normal_size_floats() > 0;
if (has_normals) {
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (normal_id != -1) {
glsafe(::glVertexAttribPointer(normal_id, buffer.vertices.normal_size_floats(), GL_FLOAT, GL_FALSE, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.normal_offset_bytes()));
glsafe(::glEnableVertexAttribArray(normal_id));
}
#else
glsafe(::glNormalPointer(GL_FLOAT, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.normal_offset_bytes()));
glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, i_buffer.ibo));
for (auto& range : buffer.model.instances.render_ranges.ranges) {
Range range_range = { range.offset, range.offset + range.count };
const Range range_range = { range.offset, range.offset + range.count };
if (range_range.intersects(buffer_range)) {
shader.set_uniform("uniform_color", range.color);
unsigned int offset = (range_range.first > buffer_range.first) ? range_range.first - buffer_range.first : 0;
size_t offset_bytes = static_cast<size_t>(offset) * indices_per_instance * sizeof(IBufferType);
Range render_range = { std::max(range_range.first, buffer_range.first), std::min(range_range.last, buffer_range.last) };
size_t count = static_cast<size_t>(render_range.last - render_range.first) * indices_per_instance;
const unsigned int offset = (range_range.first > buffer_range.first) ? range_range.first - buffer_range.first : 0;
const size_t offset_bytes = static_cast<size_t>(offset) * indices_per_instance * sizeof(IBufferType);
const Range render_range = { std::max(range_range.first, buffer_range.first), std::min(range_range.last, buffer_range.last) };
const size_t count = static_cast<size_t>(render_range.last - render_range.first) * indices_per_instance;
if (count > 0) {
glsafe(::glDrawElements(GL_TRIANGLES, (GLsizei)count, GL_UNSIGNED_SHORT, (const void*)offset_bytes));
#if ENABLE_GCODE_VIEWER_STATISTICS
@ -3088,10 +3118,17 @@ void GCodeViewer::render_toolpaths()
glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (normal_id != -1)
glsafe(::glDisableVertexAttribArray(normal_id));
if (position_id != -1)
glsafe(::glDisableVertexAttribArray(position_id));
#else
if (has_normals)
glsafe(::glDisableClientState(GL_NORMAL_ARRAY));
glsafe(::glDisableClientState(GL_VERTEX_ARRAY));
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
buffer_range.first = buffer_range.last;
@ -3102,8 +3139,8 @@ void GCodeViewer::render_toolpaths()
return (zoom < 5.0) ? 1.0 : (1.0 + 5.0 * (zoom - 5.0) / (100.0 - 5.0));
};
unsigned char begin_id = buffer_id(EMoveType::Retract);
unsigned char end_id = buffer_id(EMoveType::Count);
const unsigned char begin_id = buffer_id(EMoveType::Retract);
const unsigned char end_id = buffer_id(EMoveType::Count);
for (unsigned char i = begin_id; i < end_id; ++i) {
TBuffer& buffer = m_buffers[i];
@ -3111,9 +3148,27 @@ void GCodeViewer::render_toolpaths()
continue;
GLShaderProgram* shader = wxGetApp().get_shader(buffer.shader.c_str());
if (shader != nullptr) {
if (shader == nullptr)
continue;
shader->start_using();
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
int position_id = -1;
int normal_id = -1;
const bool use_attributes = boost::algorithm::iends_with(shader->get_name(), "_attr");
if (use_attributes) {
const Camera& camera = wxGetApp().plater()->get_camera();
const Transform3d& view_matrix = camera.get_view_matrix();
shader->set_uniform("view_model_matrix", view_matrix);
shader->set_uniform("projection_matrix", camera.get_projection_matrix());
shader->set_uniform("normal_matrix", (Matrix3d)view_matrix.matrix().block(0, 0, 3, 3).inverse().transpose());
position_id = shader->get_attrib_location("v_position");
normal_id = shader->get_attrib_location("v_normal");
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (buffer.render_primitive_type == TBuffer::ERenderPrimitiveType::InstancedModel) {
shader->set_uniform("emission_factor", 0.25f);
render_as_instanced_model(buffer, *shader);
@ -3121,7 +3176,11 @@ void GCodeViewer::render_toolpaths()
}
else if (buffer.render_primitive_type == TBuffer::ERenderPrimitiveType::BatchedModel) {
shader->set_uniform("emission_factor", 0.25f);
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
render_as_batched_model(buffer, *shader, position_id, normal_id);
#else
render_as_batched_model(buffer, *shader);
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
shader->set_uniform("emission_factor", 0.0f);
}
else {
@ -3130,23 +3189,48 @@ void GCodeViewer::render_toolpaths()
case TBuffer::ERenderPrimitiveType::Line: shader_init_as_lines(*shader); break;
default: break;
}
int uniform_color = shader->get_uniform_location("uniform_color");
const int uniform_color = shader->get_uniform_location("uniform_color");
auto it_path = buffer.render_paths.begin();
for (unsigned int ibuffer_id = 0; ibuffer_id < static_cast<unsigned int>(buffer.indices.size()); ++ibuffer_id) {
const IBuffer& i_buffer = buffer.indices[ibuffer_id];
// Skip all paths with ibuffer_id < ibuffer_id.
for (; it_path != buffer.render_paths.end() && it_path->ibuffer_id < ibuffer_id; ++ it_path) ;
for (; it_path != buffer.render_paths.end() && it_path->ibuffer_id < ibuffer_id; ++it_path);
if (it_path == buffer.render_paths.end() || it_path->ibuffer_id > ibuffer_id)
// Not found. This shall not happen.
continue;
glsafe(::glBindBuffer(GL_ARRAY_BUFFER, i_buffer.vbo));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (use_attributes) {
if (position_id != -1) {
glsafe(::glVertexAttribPointer(position_id, buffer.vertices.position_size_floats(), GL_FLOAT, GL_FALSE, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.position_offset_bytes()));
glsafe(::glEnableVertexAttribArray(position_id));
}
}
else {
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glVertexPointer(buffer.vertices.position_size_floats(), GL_FLOAT, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.position_offset_bytes()));
glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
bool has_normals = buffer.vertices.normal_size_floats() > 0;
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
const bool has_normals = buffer.vertices.normal_size_floats() > 0;
if (has_normals) {
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (use_attributes) {
if (normal_id != -1) {
glsafe(::glVertexAttribPointer(normal_id, buffer.vertices.normal_size_floats(), GL_FLOAT, GL_FALSE, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.normal_offset_bytes()));
glsafe(::glEnableVertexAttribArray(normal_id));
}
}
else {
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glNormalPointer(GL_FLOAT, buffer.vertices.vertex_size_bytes(), (const void*)buffer.vertices.normal_offset_bytes()));
glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, i_buffer.ibo));
@ -3172,17 +3256,28 @@ void GCodeViewer::render_toolpaths()
glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (use_attributes) {
if (normal_id != -1)
glsafe(::glDisableVertexAttribArray(normal_id));
if (position_id != -1)
glsafe(::glDisableVertexAttribArray(position_id));
}
else {
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (has_normals)
glsafe(::glDisableClientState(GL_NORMAL_ARRAY));
glsafe(::glDisableClientState(GL_VERTEX_ARRAY));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
}
}
shader->stop_using();
}
}
#if ENABLE_GCODE_VIEWER_STATISTICS
auto render_sequential_range_cap = [this]
@ -3190,17 +3285,60 @@ void GCodeViewer::render_toolpaths()
auto render_sequential_range_cap = []
#endif // ENABLE_GCODE_VIEWER_STATISTICS
(const SequentialRangeCap& cap) {
GLShaderProgram* shader = wxGetApp().get_shader(cap.buffer->shader.c_str());
if (shader != nullptr) {
const TBuffer* buffer = cap.buffer;
GLShaderProgram* shader = wxGetApp().get_shader(buffer->shader.c_str());
if (shader == nullptr)
return;
shader->start_using();
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
int position_id = -1;
int normal_id = -1;
const bool use_attributes = boost::algorithm::iends_with(shader->get_name(), "_attr");
if (use_attributes) {
const Camera& camera = wxGetApp().plater()->get_camera();
const Transform3d& view_matrix = camera.get_view_matrix();
shader->set_uniform("view_model_matrix", view_matrix);
shader->set_uniform("projection_matrix", camera.get_projection_matrix());
shader->set_uniform("normal_matrix", (Matrix3d)view_matrix.matrix().block(0, 0, 3, 3).inverse().transpose());
position_id = shader->get_attrib_location("v_position");
normal_id = shader->get_attrib_location("v_normal");
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glBindBuffer(GL_ARRAY_BUFFER, cap.vbo));
glsafe(::glVertexPointer(cap.buffer->vertices.position_size_floats(), GL_FLOAT, cap.buffer->vertices.vertex_size_bytes(), (const void*)cap.buffer->vertices.position_offset_bytes()));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (use_attributes) {
if (position_id != -1) {
glsafe(::glVertexAttribPointer(position_id, buffer->vertices.position_size_floats(), GL_FLOAT, GL_FALSE, buffer->vertices.vertex_size_bytes(), (const void*)buffer->vertices.position_offset_bytes()));
glsafe(::glEnableVertexAttribArray(position_id));
}
}
else {
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glVertexPointer(buffer->vertices.position_size_floats(), GL_FLOAT, buffer->vertices.vertex_size_bytes(), (const void*)buffer->vertices.position_offset_bytes()));
glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
bool has_normals = cap.buffer->vertices.normal_size_floats() > 0;
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
const bool has_normals = buffer->vertices.normal_size_floats() > 0;
if (has_normals) {
glsafe(::glNormalPointer(GL_FLOAT, cap.buffer->vertices.vertex_size_bytes(), (const void*)cap.buffer->vertices.normal_offset_bytes()));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (use_attributes) {
if (normal_id != -1) {
glsafe(::glVertexAttribPointer(normal_id, buffer->vertices.normal_size_floats(), GL_FLOAT, GL_FALSE, buffer->vertices.vertex_size_bytes(), (const void*)buffer->vertices.normal_offset_bytes()));
glsafe(::glEnableVertexAttribArray(normal_id));
}
}
else {
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glNormalPointer(GL_FLOAT, buffer->vertices.vertex_size_bytes(), (const void*)buffer->vertices.normal_offset_bytes()));
glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
shader->set_uniform("uniform_color", cap.color);
@ -3213,14 +3351,26 @@ void GCodeViewer::render_toolpaths()
++m_statistics.gl_triangles_calls_count;
#endif // ENABLE_GCODE_VIEWER_STATISTICS
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (use_attributes) {
if (normal_id != -1)
glsafe(::glDisableVertexAttribArray(normal_id));
if (position_id != -1)
glsafe(::glDisableVertexAttribArray(position_id));
}
else {
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
if (has_normals)
glsafe(::glDisableClientState(GL_NORMAL_ARRAY));
glsafe(::glDisableClientState(GL_VERTEX_ARRAY));
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
}
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
shader->stop_using();
}
};
for (unsigned int i = 0; i < 2; ++i) {

11
src/slic3r/GUI/Selection.hpp
View File

@ -376,28 +376,17 @@ private:
void render_selected_volumes() const;
void render_bounding_box(const BoundingBoxf3& box, float* color) const;
#endif // ENABLE_GLBEGIN_GLEND_REMOVAL
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
void render_sidebar_position_hints(const std::string& sidebar_field, GLShaderProgram& shader, const Transform3d& matrix);
void render_sidebar_rotation_hints(const std::string& sidebar_field, GLShaderProgram& shader, const Transform3d& matrix);
void render_sidebar_scale_hints(const std::string& sidebar_field, GLShaderProgram& shader, const Transform3d& matrix);
void render_sidebar_layers_hints(const std::string& sidebar_field, GLShaderProgram& shader);
#else
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
void render_sidebar_position_hints(const std::string& sidebar_field);
void render_sidebar_rotation_hints(const std::string& sidebar_field);
void render_sidebar_scale_hints(const std::string& sidebar_field);
void render_sidebar_layers_hints(const std::string& sidebar_field);
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//#if ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
// void render_sidebar_layers_hints(const std::string& sidebar_field, GLShaderProgram& shader);
//#else
// void render_sidebar_layers_hints(const std::string& sidebar_field);
//#endif // ENABLE_GLBEGIN_GLEND_SHADERS_ATTRIBUTES
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
public:
enum SyncRotationType {