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add new orbit functionality for camrea

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This commit is contained in:
hultonha
2021-05-17 12:05:13 +01:00
parent f4106fe73f
commit bb05993355
3 changed files with 74 additions and 17 deletions
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Code/Framework/AzFramework/AzFramework/Viewport/CameraInput.cpp
+33 -13
View File
@@ -30,7 +30,8 @@ namespace AzFramework
AZ_CVAR(float, ed_cameraSystemOrbitDollyScrollSpeed, 0.02f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemOrbitDollyCursorSpeed, 0.01f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemScrollTranslateSpeed, 0.02f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemMaxOrbitDistance, 60.0f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemMinOrbitDistance, 6.0f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemMaxOrbitDistance, 50.0f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemLookSmoothness, 5.0f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemTranslateSmoothness, 5.0f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
AZ_CVAR(float, ed_cameraSystemRotateSpeed, 0.005f, nullptr, AZ::ConsoleFunctorFlags::Null, "");
@@ -532,20 +533,39 @@ namespace AzFramework
if (Beginning())
{
float hit_distance = 0.0f;
AZ::Plane::CreateFromNormalAndPoint(AZ::Vector3::CreateAxisZ(), AZ::Vector3::CreateAxisZ(ed_cameraSystemDefaultPlaneHeight))
.CastRay(targetCamera.Translation(), targetCamera.Rotation().GetBasisY(), hit_distance);
const auto hasLookAt = [&nextCamera, &targetCamera, lookAtFn = m_lookAtFn] {
if (lookAtFn)
{
if (const auto lookAt = lookAtFn())
{
auto transform = AZ::Transform::CreateLookAt(targetCamera.m_lookAt, *lookAt);
nextCamera.m_lookDist = -lookAt->GetDistance(targetCamera.m_lookAt);
UpdateCameraFromTransform(nextCamera, transform);
if (hit_distance > 0.0f)
return true;
}
}
return false;
}();
if (!hasLookAt)
{
hit_distance = AZStd::min<float>(hit_distance, ed_cameraSystemMaxOrbitDistance);
nextCamera.m_lookDist = -hit_distance;
nextCamera.m_lookAt = targetCamera.Translation() + targetCamera.Rotation().GetBasisY() * hit_distance;
}
else
{
nextCamera.m_lookDist = -ed_cameraSystemMaxOrbitDistance;
nextCamera.m_lookAt = targetCamera.Translation() + targetCamera.Rotation().GetBasisY() * ed_cameraSystemMaxOrbitDistance;
float hit_distance = 0.0f;
AZ::Plane::CreateFromNormalAndPoint(AZ::Vector3::CreateAxisZ(), AZ::Vector3::CreateAxisZ(ed_cameraSystemDefaultPlaneHeight))
.CastRay(targetCamera.Translation(), targetCamera.Rotation().GetBasisY(), hit_distance);
if (hit_distance > 0.0f)
{
hit_distance = AZStd::min<float>(hit_distance, ed_cameraSystemMaxOrbitDistance);
nextCamera.m_lookDist = -hit_distance;
nextCamera.m_lookAt = targetCamera.Translation() + targetCamera.Rotation().GetBasisY() * hit_distance;
}
else
{
nextCamera.m_lookDist = -ed_cameraSystemMinOrbitDistance;
nextCamera.m_lookAt =
targetCamera.Translation() + targetCamera.Rotation().GetBasisY() * ed_cameraSystemMinOrbitDistance;
}
}
}
Code/Framework/AzFramework/AzFramework/Viewport/CameraInput.h
+26 -4
View File
@@ -199,6 +199,7 @@ namespace AzFramework
public:
explicit RotateCameraInput(InputChannelId rotateChannelId);
// CameraInput overrides ...
void HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
@@ -239,6 +240,7 @@ namespace AzFramework
public:
PanCameraInput(InputChannelId panChannelId, PanAxesFn panAxesFn);
// CameraInput overrides ...
void HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
@@ -279,6 +281,7 @@ namespace AzFramework
public:
explicit TranslateCameraInput(TranslationAxesFn translationAxesFn);
// CameraInput overrides ...
void HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
void ResetImpl() override;
@@ -348,6 +351,7 @@ namespace AzFramework
class OrbitDollyScrollCameraInput : public CameraInput
{
public:
// CameraInput overrides ...
void HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
};
@@ -357,6 +361,7 @@ namespace AzFramework
public:
explicit OrbitDollyCursorMoveCameraInput(InputChannelId dollyChannelId);
// CameraInput overrides ...
void HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
@@ -367,6 +372,7 @@ namespace AzFramework
class ScrollTranslationCameraInput : public CameraInput
{
public:
// CameraInput overrides ...
void HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
};
@@ -374,16 +380,32 @@ namespace AzFramework
class OrbitCameraInput : public CameraInput
{
public:
using LookAtFn = AZStd::function<AZStd::optional<AZ::Vector3>()>;
// CameraInput overrides ...
void HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
bool Exclusive() const override
{
return true;
}
bool Exclusive() const override;
Cameras m_orbitCameras;
//! Override the default behavior for how a look-at point is calculated.
void SetLookAtFn(const LookAtFn& lookAtFn);
private:
LookAtFn m_lookAtFn;
};
inline void OrbitCameraInput::SetLookAtFn(const LookAtFn& lookAtFn)
{
m_lookAtFn = lookAtFn;
}
inline bool OrbitCameraInput::Exclusive() const
{
return true;
}
struct WindowSize;
//! Map from a generic InputChannel event to a camera specific InputEvent.