How can I detect (and interpret) mouse wheel events? I would like to use it for zoom in/out, but havent seen a sample that uses it.
Using mouse wheel
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You can use input::GetMouseMoveWheel() to capture the wheel delta. For example, set zoom variable to zoom += delta
Alternatively you can use ‘E_MOUSEWHEEL’ event (see http://urho3d.github.io/documentation/HEAD/_event_list.html).
You can also check how the Editor handles zoom.
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Thanks, worked using input::GetMouseMoveWheel, but got a weird problem, when I zoom in, I can get close to floor, but when zoom out, almost inmediatly I get a black screen.
This is my camera creation code:
[quote] target = new Urho3D::Node(context);
_cameraNode = target->CreateChild(“cam”); //new Urho3D::Node(context);
camera = _cameraNode->CreateComponent<Camera>();
camera->SetFarClip(300.0f);
camera->SetOrthographic(true);[/quote]
And zoom code, in scene update handler:
delta = GetSubsystem<Urho3D::Input>()->GetMouseMoveWheel();
zoom = camera->GetZoom()+delta;
camera->SetZoom(zoom);
Initially I thought that it was the far clip distance, increased it until 10000, same result.
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You might need to ‘scale’ delta to customize zoom speed. Try to multiply delta by 0.01 (or divide by 100).