mirror of
https://git.mirrors.martin98.com/https://github.com/prusa3d/PrusaSlicer.git
synced 2025-07-13 20:21:49 +08:00
9fbba855ef
1) Removed the already commented-out scaling / unscaling when doing "safe offsetting" 2) Removed some of the "safe offsetting" at calls where it never was used. 3) Reworked Clipper & ClipperUtils to pass Polygons / ExPolygons / Surfaces as input parameters without conversion to ClipperLib::Paths. This should save a lot of memory allocation and copying. 4) Reworked conversions from ClipperLib::Paths & PolyTree to Polygons / ExPolygons to use the move operator to avoid many unnecessary allocations. 5) Reworked some "union with safe ofsetting" to "offset_ex", which should be cheaper.
564 lines
18 KiB
C++
564 lines
18 KiB
C++
#include "libslic3r/libslic3r.h"
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#include "3DBed.hpp"
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#include "libslic3r/Polygon.hpp"
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#include "libslic3r/ClipperUtils.hpp"
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#include "libslic3r/BoundingBox.hpp"
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#include "libslic3r/Geometry.hpp"
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#include "libslic3r/Tesselate.hpp"
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#include "GUI_App.hpp"
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#include "libslic3r/PresetBundle.hpp"
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#include "GLCanvas3D.hpp"
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#include "3DScene.hpp"
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#include <GL/glew.h>
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#include <boost/algorithm/string/predicate.hpp>
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#include <boost/filesystem/operations.hpp>
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#include <boost/log/trivial.hpp>
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static const float GROUND_Z = -0.02f;
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namespace Slic3r {
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namespace GUI {
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bool GeometryBuffer::set_from_triangles(const std::vector<Vec2f> &triangles, float z)
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{
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if (triangles.empty()) {
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m_vertices.clear();
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return false;
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}
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assert(triangles.size() % 3 == 0);
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m_vertices = std::vector<Vertex>(triangles.size(), Vertex());
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Vec2f min = triangles.front();
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Vec2f max = min;
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for (size_t v_count = 0; v_count < triangles.size(); ++ v_count) {
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const Vec2f &p = triangles[v_count];
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Vertex &v = m_vertices[v_count];
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v.position = Vec3f(p.x(), p.y(), z);
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v.tex_coords = p;
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min = min.cwiseMin(p).eval();
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max = max.cwiseMax(p).eval();
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}
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Vec2f size = max - min;
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if (size.x() != 0.f && size.y() != 0.f) {
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Vec2f inv_size = size.cwiseInverse();
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inv_size.y() *= -1;
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for (Vertex& v : m_vertices) {
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v.tex_coords -= min;
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v.tex_coords.x() *= inv_size.x();
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v.tex_coords.y() *= inv_size.y();
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}
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}
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return true;
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}
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bool GeometryBuffer::set_from_lines(const Lines& lines, float z)
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{
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m_vertices.clear();
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unsigned int v_size = 2 * (unsigned int)lines.size();
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if (v_size == 0)
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return false;
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m_vertices = std::vector<Vertex>(v_size, Vertex());
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unsigned int v_count = 0;
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for (const Line& l : lines) {
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Vertex& v1 = m_vertices[v_count];
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v1.position[0] = unscale<float>(l.a(0));
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v1.position[1] = unscale<float>(l.a(1));
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v1.position[2] = z;
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++v_count;
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Vertex& v2 = m_vertices[v_count];
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v2.position[0] = unscale<float>(l.b(0));
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v2.position[1] = unscale<float>(l.b(1));
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v2.position[2] = z;
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++v_count;
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}
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return true;
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}
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const float* GeometryBuffer::get_vertices_data() const
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{
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return (m_vertices.size() > 0) ? (const float*)m_vertices.data() : nullptr;
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}
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const float Bed3D::Axes::DefaultStemRadius = 0.5f;
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const float Bed3D::Axes::DefaultStemLength = 25.0f;
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const float Bed3D::Axes::DefaultTipRadius = 2.5f * Bed3D::Axes::DefaultStemRadius;
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const float Bed3D::Axes::DefaultTipLength = 5.0f;
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void Bed3D::Axes::set_stem_length(float length)
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{
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m_stem_length = length;
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m_arrow.reset();
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}
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void Bed3D::Axes::render() const
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{
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auto render_axis = [this](const Transform3f& transform) {
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glsafe(::glPushMatrix());
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glsafe(::glMultMatrixf(transform.data()));
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m_arrow.render();
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glsafe(::glPopMatrix());
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};
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const_cast<GLModel*>(&m_arrow)->init_from(stilized_arrow(16, DefaultTipRadius, DefaultTipLength, DefaultStemRadius, m_stem_length));
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GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
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if (shader == nullptr)
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return;
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glsafe(::glEnable(GL_DEPTH_TEST));
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shader->start_using();
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// x axis
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std::array<float, 4> color = { 0.75f, 0.0f, 0.0f, 1.0f };
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shader->set_uniform("uniform_color", color);
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render_axis(Geometry::assemble_transform(m_origin, { 0.0, 0.5 * M_PI, 0.0f }).cast<float>());
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// y axis
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color = { 0.0f, 0.75f, 0.0f, 1.0f };
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shader->set_uniform("uniform_color", color);
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render_axis(Geometry::assemble_transform(m_origin, { -0.5 * M_PI, 0.0, 0.0f }).cast<float>());
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// z axis
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color = { 0.0f, 0.0f, 0.75f, 1.0f };
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shader->set_uniform("uniform_color", color);
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render_axis(Geometry::assemble_transform(m_origin).cast<float>());
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shader->stop_using();
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glsafe(::glDisable(GL_DEPTH_TEST));
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}
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bool Bed3D::set_shape(const Pointfs& shape, const std::string& custom_texture, const std::string& custom_model, bool force_as_custom)
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{
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auto check_texture = [](const std::string& texture) {
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return !texture.empty() && (boost::algorithm::iends_with(texture, ".png") || boost::algorithm::iends_with(texture, ".svg")) && boost::filesystem::exists(texture);
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};
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auto check_model = [](const std::string& model) {
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return !model.empty() && boost::algorithm::iends_with(model, ".stl") && boost::filesystem::exists(model);
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};
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EType type;
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std::string model;
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std::string texture;
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if (force_as_custom)
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type = Custom;
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else {
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auto [new_type, system_model, system_texture] = detect_type(shape);
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type = new_type;
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model = system_model;
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texture = system_texture;
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}
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std::string texture_filename = custom_texture.empty() ? texture : custom_texture;
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if (!check_texture(texture_filename))
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texture_filename.clear();
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std::string model_filename = custom_model.empty() ? model : custom_model;
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if (!check_model(model_filename))
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model_filename.clear();
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if (m_shape == shape && m_type == type && m_texture_filename == texture_filename && m_model_filename == model_filename)
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// No change, no need to update the UI.
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return false;
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m_shape = shape;
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m_texture_filename = texture_filename;
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m_model_filename = model_filename;
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m_type = type;
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calc_bounding_boxes();
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ExPolygon poly;
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for (const Vec2d& p : m_shape) {
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poly.contour.append({ scale_(p(0)), scale_(p(1)) });
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}
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calc_triangles(poly);
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const BoundingBox& bed_bbox = poly.contour.bounding_box();
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calc_gridlines(poly, bed_bbox);
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m_polygon = offset(poly.contour, (float)bed_bbox.radius() * 1.7f, jtRound, scale_(0.5))[0];
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reset();
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m_texture.reset();
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m_model.reset();
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// Set the origin and size for rendering the coordinate system axes.
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m_axes.set_origin({ 0.0, 0.0, static_cast<double>(GROUND_Z) });
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m_axes.set_stem_length(0.1f * static_cast<float>(m_bounding_box.max_size()));
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// Let the calee to update the UI.
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return true;
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}
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bool Bed3D::contains(const Point& point) const
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{
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return m_polygon.contains(point);
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}
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Point Bed3D::point_projection(const Point& point) const
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{
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return m_polygon.point_projection(point);
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}
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void Bed3D::render(GLCanvas3D& canvas, bool bottom, float scale_factor,
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bool show_axes, bool show_texture) const
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{
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float* factor = const_cast<float*>(&m_scale_factor);
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*factor = scale_factor;
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if (show_axes)
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render_axes();
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glsafe(::glEnable(GL_DEPTH_TEST));
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switch (m_type)
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{
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case System: { render_system(canvas, bottom, show_texture); break; }
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default:
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case Custom: { render_custom(canvas, bottom, show_texture); break; }
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}
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glsafe(::glDisable(GL_DEPTH_TEST));
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}
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void Bed3D::calc_bounding_boxes() const
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{
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BoundingBoxf3* bounding_box = const_cast<BoundingBoxf3*>(&m_bounding_box);
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*bounding_box = BoundingBoxf3();
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for (const Vec2d& p : m_shape) {
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bounding_box->merge({ p(0), p(1), 0.0 });
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}
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BoundingBoxf3* extended_bounding_box = const_cast<BoundingBoxf3*>(&m_extended_bounding_box);
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*extended_bounding_box = m_bounding_box;
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// extend to contain axes
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extended_bounding_box->merge(m_axes.get_origin() + m_axes.get_total_length() * Vec3d::Ones());
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extended_bounding_box->merge(extended_bounding_box->min + Vec3d(-Axes::DefaultTipRadius, -Axes::DefaultTipRadius, extended_bounding_box->max(2)));
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// extend to contain model, if any
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BoundingBoxf3 model_bb = m_model.get_bounding_box();
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if (model_bb.defined) {
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model_bb.translate(m_model_offset);
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extended_bounding_box->merge(model_bb);
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}
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}
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void Bed3D::calc_triangles(const ExPolygon& poly)
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{
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if (! m_triangles.set_from_triangles(triangulate_expolygon_2f(poly, NORMALS_UP), GROUND_Z))
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BOOST_LOG_TRIVIAL(error) << "Unable to create bed triangles";
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}
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void Bed3D::calc_gridlines(const ExPolygon& poly, const BoundingBox& bed_bbox)
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{
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Polylines axes_lines;
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for (coord_t x = bed_bbox.min(0); x <= bed_bbox.max(0); x += scale_(10.0)) {
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Polyline line;
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line.append(Point(x, bed_bbox.min(1)));
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line.append(Point(x, bed_bbox.max(1)));
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axes_lines.push_back(line);
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}
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for (coord_t y = bed_bbox.min(1); y <= bed_bbox.max(1); y += scale_(10.0)) {
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Polyline line;
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line.append(Point(bed_bbox.min(0), y));
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line.append(Point(bed_bbox.max(0), y));
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axes_lines.push_back(line);
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}
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// clip with a slightly grown expolygon because our lines lay on the contours and may get erroneously clipped
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Lines gridlines = to_lines(intersection_pl(axes_lines, offset(poly, (float)SCALED_EPSILON)));
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// append bed contours
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Lines contour_lines = to_lines(poly);
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std::copy(contour_lines.begin(), contour_lines.end(), std::back_inserter(gridlines));
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if (!m_gridlines.set_from_lines(gridlines, GROUND_Z))
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BOOST_LOG_TRIVIAL(error) << "Unable to create bed grid lines\n";
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}
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std::tuple<Bed3D::EType, std::string, std::string> Bed3D::detect_type(const Pointfs& shape) const
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{
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auto bundle = wxGetApp().preset_bundle;
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if (bundle != nullptr) {
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const Preset* curr = &bundle->printers.get_selected_preset();
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while (curr != nullptr) {
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if (curr->config.has("bed_shape")) {
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if (shape == dynamic_cast<const ConfigOptionPoints*>(curr->config.option("bed_shape"))->values) {
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std::string model_filename = PresetUtils::system_printer_bed_model(*curr);
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std::string texture_filename = PresetUtils::system_printer_bed_texture(*curr);
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if (!model_filename.empty() && !texture_filename.empty())
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return { System, model_filename, texture_filename };
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}
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}
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curr = bundle->printers.get_preset_parent(*curr);
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}
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}
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return { Custom, "", "" };
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}
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void Bed3D::render_axes() const
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{
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if (!m_shape.empty())
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m_axes.render();
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}
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void Bed3D::render_system(GLCanvas3D& canvas, bool bottom, bool show_texture) const
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{
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if (!bottom)
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render_model();
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if (show_texture)
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render_texture(bottom, canvas);
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}
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void Bed3D::render_texture(bool bottom, GLCanvas3D& canvas) const
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{
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GLTexture* texture = const_cast<GLTexture*>(&m_texture);
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GLTexture* temp_texture = const_cast<GLTexture*>(&m_temp_texture);
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if (m_texture_filename.empty()) {
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texture->reset();
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render_default(bottom);
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return;
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}
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if (texture->get_id() == 0 || texture->get_source() != m_texture_filename) {
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texture->reset();
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if (boost::algorithm::iends_with(m_texture_filename, ".svg")) {
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// use higher resolution images if graphic card and opengl version allow
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GLint max_tex_size = OpenGLManager::get_gl_info().get_max_tex_size();
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if (temp_texture->get_id() == 0 || temp_texture->get_source() != m_texture_filename) {
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// generate a temporary lower resolution texture to show while no main texture levels have been compressed
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if (!temp_texture->load_from_svg_file(m_texture_filename, false, false, false, max_tex_size / 8)) {
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render_default(bottom);
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return;
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}
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canvas.request_extra_frame();
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}
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// starts generating the main texture, compression will run asynchronously
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if (!texture->load_from_svg_file(m_texture_filename, true, true, true, max_tex_size)) {
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render_default(bottom);
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return;
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}
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}
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else if (boost::algorithm::iends_with(m_texture_filename, ".png")) {
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// generate a temporary lower resolution texture to show while no main texture levels have been compressed
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if (temp_texture->get_id() == 0 || temp_texture->get_source() != m_texture_filename) {
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if (!temp_texture->load_from_file(m_texture_filename, false, GLTexture::None, false)) {
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render_default(bottom);
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return;
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}
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canvas.request_extra_frame();
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}
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// starts generating the main texture, compression will run asynchronously
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if (!texture->load_from_file(m_texture_filename, true, GLTexture::MultiThreaded, true)) {
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render_default(bottom);
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return;
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}
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}
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else {
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render_default(bottom);
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return;
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}
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}
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else if (texture->unsent_compressed_data_available()) {
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// sends to gpu the already available compressed levels of the main texture
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texture->send_compressed_data_to_gpu();
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// the temporary texture is not needed anymore, reset it
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if (temp_texture->get_id() != 0)
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temp_texture->reset();
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canvas.request_extra_frame();
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}
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if (m_triangles.get_vertices_count() > 0) {
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GLShaderProgram* shader = wxGetApp().get_shader("printbed");
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if (shader != nullptr) {
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shader->start_using();
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shader->set_uniform("transparent_background", bottom);
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shader->set_uniform("svg_source", boost::algorithm::iends_with(m_texture.get_source(), ".svg"));
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unsigned int* vbo_id = const_cast<unsigned int*>(&m_vbo_id);
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if (*vbo_id == 0) {
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glsafe(::glGenBuffers(1, vbo_id));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, *vbo_id));
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glsafe(::glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)m_triangles.get_vertices_data_size(), (const GLvoid*)m_triangles.get_vertices_data(), GL_STATIC_DRAW));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
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}
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glsafe(::glEnable(GL_DEPTH_TEST));
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glsafe(::glDepthMask(GL_FALSE));
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glsafe(::glEnable(GL_BLEND));
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glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
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if (bottom)
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glsafe(::glFrontFace(GL_CW));
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unsigned int stride = m_triangles.get_vertex_data_size();
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GLint position_id = shader->get_attrib_location("v_position");
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GLint tex_coords_id = shader->get_attrib_location("v_tex_coords");
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// show the temporary texture while no compressed data is available
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GLuint tex_id = (GLuint)temp_texture->get_id();
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if (tex_id == 0)
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tex_id = (GLuint)texture->get_id();
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glsafe(::glBindTexture(GL_TEXTURE_2D, tex_id));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, *vbo_id));
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if (position_id != -1) {
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glsafe(::glEnableVertexAttribArray(position_id));
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glsafe(::glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, stride, (GLvoid*)(intptr_t)m_triangles.get_position_offset()));
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}
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if (tex_coords_id != -1) {
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glsafe(::glEnableVertexAttribArray(tex_coords_id));
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glsafe(::glVertexAttribPointer(tex_coords_id, 2, GL_FLOAT, GL_FALSE, stride, (GLvoid*)(intptr_t)m_triangles.get_tex_coords_offset()));
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}
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glsafe(::glDrawArrays(GL_TRIANGLES, 0, (GLsizei)m_triangles.get_vertices_count()));
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if (tex_coords_id != -1)
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glsafe(::glDisableVertexAttribArray(tex_coords_id));
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if (position_id != -1)
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glsafe(::glDisableVertexAttribArray(position_id));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
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glsafe(::glBindTexture(GL_TEXTURE_2D, 0));
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if (bottom)
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glsafe(::glFrontFace(GL_CCW));
|
|
|
|
glsafe(::glDisable(GL_BLEND));
|
|
glsafe(::glDepthMask(GL_TRUE));
|
|
|
|
shader->stop_using();
|
|
}
|
|
}
|
|
}
|
|
|
|
void Bed3D::render_model() const
|
|
{
|
|
if (m_model_filename.empty())
|
|
return;
|
|
|
|
GLModel* model = const_cast<GLModel*>(&m_model);
|
|
|
|
if (model->get_filename() != m_model_filename && model->init_from_file(m_model_filename)) {
|
|
// move the model so that its origin (0.0, 0.0, 0.0) goes into the bed shape center and a bit down to avoid z-fighting with the texture quad
|
|
Vec3d shift = m_bounding_box.center();
|
|
shift(2) = -0.03;
|
|
*const_cast<Vec3d*>(&m_model_offset) = shift;
|
|
|
|
// update extended bounding box
|
|
calc_bounding_boxes();
|
|
}
|
|
|
|
if (!model->get_filename().empty()) {
|
|
GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
|
|
if (shader != nullptr) {
|
|
shader->start_using();
|
|
shader->set_uniform("uniform_color", m_model_color);
|
|
::glPushMatrix();
|
|
::glTranslated(m_model_offset(0), m_model_offset(1), m_model_offset(2));
|
|
model->render();
|
|
::glPopMatrix();
|
|
shader->stop_using();
|
|
}
|
|
}
|
|
}
|
|
|
|
void Bed3D::render_custom(GLCanvas3D& canvas, bool bottom, bool show_texture) const
|
|
{
|
|
if (m_texture_filename.empty() && m_model_filename.empty()) {
|
|
render_default(bottom);
|
|
return;
|
|
}
|
|
|
|
if (!bottom)
|
|
render_model();
|
|
|
|
if (show_texture)
|
|
render_texture(bottom, canvas);
|
|
}
|
|
|
|
void Bed3D::render_default(bool bottom) const
|
|
{
|
|
const_cast<GLTexture*>(&m_texture)->reset();
|
|
|
|
unsigned int triangles_vcount = m_triangles.get_vertices_count();
|
|
if (triangles_vcount > 0) {
|
|
bool has_model = !m_model.get_filename().empty();
|
|
|
|
glsafe(::glEnable(GL_DEPTH_TEST));
|
|
glsafe(::glEnable(GL_BLEND));
|
|
glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
|
|
|
|
glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
|
|
|
|
if (!has_model && !bottom) {
|
|
// draw background
|
|
glsafe(::glDepthMask(GL_FALSE));
|
|
glsafe(::glColor4fv(m_model_color.data()));
|
|
glsafe(::glNormal3d(0.0f, 0.0f, 1.0f));
|
|
glsafe(::glVertexPointer(3, GL_FLOAT, m_triangles.get_vertex_data_size(), (GLvoid*)m_triangles.get_vertices_data()));
|
|
glsafe(::glDrawArrays(GL_TRIANGLES, 0, (GLsizei)triangles_vcount));
|
|
glsafe(::glDepthMask(GL_TRUE));
|
|
}
|
|
|
|
// draw grid
|
|
glsafe(::glLineWidth(1.5f * m_scale_factor));
|
|
if (has_model && !bottom)
|
|
glsafe(::glColor4f(0.9f, 0.9f, 0.9f, 1.0f));
|
|
else
|
|
glsafe(::glColor4f(0.9f, 0.9f, 0.9f, 0.6f));
|
|
glsafe(::glVertexPointer(3, GL_FLOAT, m_triangles.get_vertex_data_size(), (GLvoid*)m_gridlines.get_vertices_data()));
|
|
glsafe(::glDrawArrays(GL_LINES, 0, (GLsizei)m_gridlines.get_vertices_count()));
|
|
|
|
glsafe(::glDisableClientState(GL_VERTEX_ARRAY));
|
|
|
|
glsafe(::glDisable(GL_BLEND));
|
|
}
|
|
}
|
|
|
|
void Bed3D::reset()
|
|
{
|
|
if (m_vbo_id > 0) {
|
|
glsafe(::glDeleteBuffers(1, &m_vbo_id));
|
|
m_vbo_id = 0;
|
|
}
|
|
}
|
|
|
|
} // GUI
|
|
} // Slic3r
|