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Tech ENABLE_GLBEGIN_GLEND_REMOVAL - Refactoring of GLModel to:

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1) allow for custom vertex data layout

2) allow for custom index data format

3) allow for any OpenGL primitive type

(cherry picked from commit prusa3d/PrusaSlicer@afcac6e2ea)
This commit is contained in:
enricoturri1966 2023-10-21 16:16:21 +08:00 • committed by Noisyfox
parent 7e04448b7a
commit 354f8e20fb
27 changed files with 1527 additions and 1207 deletions
Download patch file Download diff file Expand all files Collapse all files

77
src/slic3r/GUI/3DScene.cpp
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@ -332,10 +332,10 @@ void GLVolume::SinkingContours::render()
void GLVolume::SinkingContours::update()
{
int object_idx = m_parent.object_idx();
Model& model = GUI::wxGetApp().plater()->model();
const int object_idx = m_parent.object_idx();
const Model& model = GUI::wxGetApp().plater()->model();
if (0 <= object_idx && object_idx < (int)model.objects.size() && m_parent.is_sinking() && !m_parent.is_below_printbed()) {
if (0 <= object_idx && object_idx < int(model.objects.size()) && m_parent.is_sinking() && !m_parent.is_below_printbed()) {
const BoundingBoxf3& box = m_parent.transformed_convex_hull_bounding_box();
if (!m_old_box.size().isApprox(box.size()) || m_old_box.min.z() != box.min.z()) {
m_old_box = box;
@ -344,28 +344,25 @@ void GLVolume::SinkingContours::update()
const TriangleMesh& mesh = model.objects[object_idx]->volumes[m_parent.volume_idx()]->mesh();
m_model.reset();
GUI::GLModel::InitializationData init_data;
GUI::GLModel::Geometry init_data;
init_data.format = { GUI::GLModel::Geometry::EPrimitiveType::Triangles, GUI::GLModel::Geometry::EVertexLayout::P3, GUI::GLModel::Geometry::EIndexType::UINT };
init_data.color = ColorRGBA::WHITE();
unsigned int vertices_counter = 0;
MeshSlicingParams slicing_params;
slicing_params.trafo = m_parent.world_matrix();
Polygons polygons = union_(slice_mesh(mesh.its, 0.0f, slicing_params));
for (ExPolygon &expoly : diff_ex(expand(polygons, float(scale_(HalfWidth))), shrink(polygons, float(scale_(HalfWidth))))) {
GUI::GLModel::InitializationData::Entity entity;
entity.type = GUI::GLModel::PrimitiveType::Triangles;
const Polygons polygons = union_(slice_mesh(mesh.its, 0.0f, slicing_params));
for (const ExPolygon& expoly : diff_ex(expand(polygons, float(scale_(HalfWidth))), shrink(polygons, float(scale_(HalfWidth))))) {
const std::vector<Vec3d> triangulation = triangulate_expolygon_3d(expoly);
init_data.vertices.reserve(init_data.vertices.size() + triangulation.size() * GUI::GLModel::Geometry::vertex_stride_floats(init_data.format));
init_data.indices.reserve(init_data.indices.size() + triangulation.size() * GUI::GLModel::Geometry::index_stride_bytes(init_data.format));
for (const Vec3d& v : triangulation) {
entity.positions.emplace_back(v.cast<float>() + Vec3f(0.0f, 0.0f, 0.015f)); // add a small positive z to avoid z-fighting
entity.normals.emplace_back(Vec3f::UnitZ());
const size_t positions_count = entity.positions.size();
if (positions_count % 3 == 0) {
entity.indices.emplace_back(positions_count - 3);
entity.indices.emplace_back(positions_count - 2);
entity.indices.emplace_back(positions_count - 1);
}
init_data.add_vertex((Vec3f)(v.cast<float>() + 0.015f * Vec3f::UnitZ())); // add a small positive z to avoid z-fighting
++vertices_counter;
if (vertices_counter % 3 == 0)
init_data.add_uint_triangle(vertices_counter - 3, vertices_counter - 2, vertices_counter - 1);
}
init_data.entities.emplace_back(entity);
}
m_model.init_from(init_data);
m_model.init_from(std::move(init_data));
}
else
m_shift = box.center() - m_old_box.center();
@ -1247,6 +1244,9 @@ void GLVolumeCollection::render(
if (shader == nullptr)
return;
GLShaderProgram* sink_shader = GUI::wxGetApp().get_shader("flat");
GLShaderProgram* edges_shader = GUI::wxGetApp().get_shader("flat");
if (type == ERenderType::Transparent) {
glsafe(::glEnable(GL_BLEND));
glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
@ -1272,13 +1272,18 @@ void GLVolumeCollection::render(
#endif // ENABLE_MODIFIERS_ALWAYS_TRANSPARENT
// render sinking contours of non-hovered volumes
if (m_show_sinking_contours)
if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
volume.first->hover == GLVolume::HS_None && !volume.first->force_sinking_contours) {
shader->stop_using();
volume.first->render_sinking_contours();
shader->start_using();
shader->stop_using();
if (sink_shader != nullptr) {
sink_shader->start_using();
if (m_show_sinking_contours) {
if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
volume.first->hover == GLVolume::HS_None && !volume.first->force_sinking_contours) {
volume.first->render_sinking_contours();
}
}
sink_shader->stop_using();
}
shader->start_using();
glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
@ -1341,17 +1346,21 @@ void GLVolumeCollection::render(
}
if (m_show_sinking_contours) {
for (GLVolumeWithIdAndZ& volume : to_render) {
// render sinking contours of hovered/displaced volumes
if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
(volume.first->hover != GLVolume::HS_None || volume.first->force_sinking_contours)) {
shader->stop_using();
glsafe(::glDepthFunc(GL_ALWAYS));
volume.first->render_sinking_contours();
glsafe(::glDepthFunc(GL_LESS));
shader->start_using();
shader->stop_using();
if (sink_shader != nullptr) {
sink_shader->start_using();
for (GLVolumeWithIdAndZ& volume : to_render) {
// render sinking contours of hovered/displaced volumes
if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
(volume.first->hover != GLVolume::HS_None || volume.first->force_sinking_contours)) {
glsafe(::glDepthFunc(GL_ALWAYS));
volume.first->render_sinking_contours();
glsafe(::glDepthFunc(GL_LESS));
}
}
sink_shader->start_using();
}
shader->start_using();
}
if (disable_cullface)