3D-printing/OrcaSlicer
1
0
Fork 0
mirror of https://github.com/SoftFever/OrcaSlicer.git synced 2025-07-11 16:57:53 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Camera refactoring: Frustrum calculations moved into Camera class

Browse source
This commit is contained in:
Enrico Turri 2019-05-16 15:54:11 +02:00
parent cf35d750a0
commit 8c6304688d
3 changed files with 44 additions and 62 deletions
Download patch file Download diff file Expand all files Collapse all files

56
src/slic3r/GUI/GLCanvas3D.cpp
View file

@ -1472,6 +1472,7 @@ BoundingBoxf3 GLCanvas3D::scene_bounding_box() const
bb.min(2) = std::min(bb.min(2), -h);
bb.max(2) = std::max(bb.max(2), h);
}
return bb;
}
@ -3593,59 +3594,10 @@ void GLCanvas3D::_resize(unsigned int w, unsigned int h)
// ensures that this canvas is current
_set_current();
// updates camera
m_camera.apply_viewport(0, 0, w, h);
const BoundingBoxf3& bbox = _max_bounding_box();
switch (m_camera.type)
{
case Camera::Ortho:
{
float w2 = w;
float h2 = h;
float two_zoom = 2.0f * m_camera.zoom;
if (two_zoom != 0.0f)
{
float inv_two_zoom = 1.0f / two_zoom;
w2 *= inv_two_zoom;
h2 *= inv_two_zoom;
}
// FIXME: calculate a tighter value for depth will improve z-fighting
// Set at least some minimum depth in case the bounding box is empty to avoid an OpenGL driver error.
float depth = std::max(1.f, 5.0f * (float)bbox.max_size());
m_camera.apply_ortho_projection(-w2, w2, -h2, h2, -depth, depth);
break;
}
// case Camera::Perspective:
// {
// float bbox_r = (float)bbox.radius();
// float fov = PI * 45.0f / 180.0f;
// float fov_tan = tan(0.5f * fov);
// float cam_distance = 0.5f * bbox_r / fov_tan;
// m_camera.distance = cam_distance;
//
// float nr = cam_distance - bbox_r * 1.1f;
// float fr = cam_distance + bbox_r * 1.1f;
// if (nr < 1.0f)
// nr = 1.0f;
//
// if (fr < nr + 1.0f)
// fr = nr + 1.0f;
//
// float h2 = fov_tan * nr;
// float w2 = h2 * w / h;
// ::glFrustum(-w2, w2, -h2, h2, nr, fr);
//
// break;
// }
default:
{
throw std::runtime_error("Invalid camera type.");
break;
}
}
m_camera.apply_projection(_max_bounding_box());
m_dirty = false;
}