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Fixed flickering of 3D scene GUI when the scene's bounding box gets very big

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enricoturri1966 2021-04-16 12:49:57 +02:00
parent 66f6c8c786
commit dabac92755
1 changed files with 12 additions and 12 deletions
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24
src/slic3r/GUI/Camera.cpp
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@ -330,28 +330,28 @@ std::pair<double, double> Camera::calc_tight_frustrum_zs_around(const BoundingBo
far_z += FrustrumZMargin;
// ensure min size
if (far_z - near_z < FrustrumMinZRange)
{
if (far_z - near_z < FrustrumMinZRange) {
double mid_z = 0.5 * (near_z + far_z);
double half_size = 0.5 * FrustrumMinZRange;
near_z = mid_z - half_size;
far_z = mid_z + half_size;
}
if (near_z < FrustrumMinNearZ)
{
float delta = FrustrumMinNearZ - near_z;
if (near_z < FrustrumMinNearZ) {
double delta = FrustrumMinNearZ - near_z;
set_distance(m_distance + delta);
near_z += delta;
far_z += delta;
}
else if ((near_z > 2.0 * FrustrumMinNearZ) && (m_distance > DefaultDistance))
{
float delta = m_distance - DefaultDistance;
set_distance(DefaultDistance);
near_z -= delta;
far_z -= delta;
}
// The following is commented out because it causes flickering of the 3D scene GUI
// when the bounding box of the scene gets large enough
// We need to introduce some smarter code to move the camera back and forth in such case
// else if (near_z > 2.0 * FrustrumMinNearZ && m_distance > DefaultDistance) {
// float delta = m_distance - DefaultDistance;
// set_distance(DefaultDistance);
// near_z -= delta;
// far_z -= delta;
// }
return ret;
}