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Fine tune the zooming function

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Ylva Selling
2021-04-30 15:06:44 +02:00
parent 7ea8ba0d3b
commit 70642b0a55
1 changed files with 3 additions and 2 deletions
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5
modules/skybrowser/src/screenspaceskybrowser.cpp
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@@ -162,8 +162,9 @@ namespace openspace {
}
void ScreenSpaceSkyBrowser::scrollZoom(float scroll) {
float zoomFactor = 0.25f*log(_vfieldOfView + 1.1f);
// Make scroll more sensitive the smaller the FOV
float x = _vfieldOfView;
float zoomFactor = atan(x / 50.0) + exp(x / 40) - 0.999999;
float zoom = scroll > 0.0 ? -zoomFactor : zoomFactor;
_vfieldOfView = std::clamp(_vfieldOfView + zoom, 0.001f, 70.0f);
}