3DPrinting/PrusaSlicer-NonPlainar
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Create emboss object on cursor position

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This commit is contained in:
Filip Sykala 2022-01-28 18:00:10 +01:00
parent ed818f9177
commit 53ee0092b0
10 changed files with 212 additions and 87 deletions
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26
src/slic3r/GUI/CameraUtils.cpp
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@ -72,3 +72,29 @@ Slic3r::Polygon CameraUtils::create_hull2d(const Camera & camera,
Points vertices_2d = project(camera, vertices);
return Geometry::convex_hull(vertices_2d);
}
#include <igl/unproject.h>
Vec3d CameraUtils::create_ray(const Camera &camera, const Vec2d &coor) {
Matrix4d modelview = camera.get_view_matrix().matrix();
Matrix4d projection = camera.get_projection_matrix().matrix();
Vec4i viewport(camera.get_viewport().data());
Vec3d scene_point(coor.x(), viewport[3] - coor.y(), 0.);
Vec3d unprojected_point;
igl::unproject(scene_point, modelview, projection, viewport, unprojected_point);
Vec3d p0 = camera.get_position();
Vec3d dir = unprojected_point - p0;
dir.normalize();
return dir;
}
Vec2d CameraUtils::get_z0_position(const Camera &camera, const Vec2d & coor)
{
Vec3d dir = CameraUtils::create_ray(camera, coor);
Vec3d p0 = camera.get_position();
// find position of ray cross plane(z = 0)
double t = p0.z() / dir.z();
Vec3d p = p0 - t * dir;
return Vec2d(p.x(), p.y());
}