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Added support for distance between camera position and camera target

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This commit is contained in:
Enrico Turri 2019-06-13 09:12:44 +02:00
parent 26d48b7f52
commit f0b228c4d2
2 changed files with 15 additions and 5 deletions
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15
src/slic3r/GUI/Camera.cpp
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@ -22,11 +22,13 @@ static const float VIEW_REAR[2] = { 180.0f, 90.0f };
namespace Slic3r {
namespace GUI {
const float Camera::DefaultDistance = 1000.0f;
Camera::Camera()
: type(Ortho)
, zoom(1.0f)
, phi(45.0f)
// , distance(0.0f)
, distance(DefaultDistance)
, requires_zoom_to_bed(false)
, inverted_phi(false)
, m_theta(45.0f)
@ -107,12 +109,18 @@ void Camera::apply_viewport(int x, int y, unsigned int w, unsigned int h) const
void Camera::apply_view_matrix() const
{
double theta_rad = Geometry::deg2rad(-(double)m_theta);
double phi_rad = Geometry::deg2rad((double)phi);
double sin_theta = ::sin(theta_rad);
Vec3d camera_pos = m_target + (double)distance * Vec3d(sin_theta * ::sin(phi_rad), sin_theta * ::cos(phi_rad), ::cos(theta_rad));
glsafe(::glMatrixMode(GL_MODELVIEW));
glsafe(::glLoadIdentity());
glsafe(::glRotatef(-m_theta, 1.0f, 0.0f, 0.0f)); // pitch
glsafe(::glRotatef(phi, 0.0f, 0.0f, 1.0f)); // yaw
glsafe(::glTranslated(-m_target(0), -m_target(1), -m_target(2))); // target to origin
glsafe(::glTranslated(-camera_pos(0), -camera_pos(1), -camera_pos(2)));
glsafe(::glGetDoublev(GL_MODELVIEW_MATRIX, m_view_matrix.data()));
}
@ -136,8 +144,7 @@ void Camera::apply_projection(const BoundingBoxf3& box) const
// 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.
double depth = std::max(1.0, 5.0 * box.max_size());
apply_ortho_projection(-w2, w2, -h2, h2, -depth, depth);
apply_ortho_projection(-w2, w2, -h2, h2, (double)distance - depth, (double)distance + depth);
break;
}
// case Perspective:

5
src/slic3r/GUI/Camera.hpp
View file

@ -9,6 +9,8 @@ namespace GUI {
struct Camera
{
static const float DefaultDistance;
enum EType : unsigned char
{
Unknown,
@ -20,7 +22,8 @@ struct Camera
EType type;
float zoom;
float phi;
// float distance;
// Distance between camera position and camera target measured along the camera Z axis
float distance;
bool requires_zoom_to_bed;
bool inverted_phi;