71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef TNT_FILAMENT_SAMPLE_CAMERA_MANIPULATOR_H
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#define TNT_FILAMENT_SAMPLE_CAMERA_MANIPULATOR_H
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#include <math/vec2.h>
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#include <math/vec3.h>
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#include <math/vec4.h>
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#include <math/mat4.h>
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#include <filament/Camera.h>
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class CameraManipulator {
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public:
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using Camera = filament::Camera;
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using CameraChangedCallback = std::function<void(Camera const* c)>;
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CameraManipulator();
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CameraManipulator(Camera* camera, size_t width, size_t height);
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void setCameraChangedCallback(CameraChangedCallback cb);
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void setCamera(Camera* camera);
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Camera const* getCamera() const {
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return mCamera;
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}
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void setViewport(size_t w, size_t h);
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void lookAt(const math::double3& eye, const math::double3& at);
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void track(const math::double2& delta);
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void dolly(double delta, double dollySpeed = 5.0);
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void rotate(const math::double2& delta, double rotateSpeed = 7.0);
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void updateCameraTransform();
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private:
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void updateCameraProjection();
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Camera* mCamera = nullptr;
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math::double3 mRotation;
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math::double3 mTranslation;
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double mCenterOfInterest = 10.0;
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double mFovx = 65.0;
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double mClipNear = 0.1;
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double mClipFar = 11.0;
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size_t mWidth;
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size_t mHeight;
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double mAspect = 1.0f;
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std::function<void(Camera const* c)> mCameraChanged;
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};
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#endif // TNT_FILAMENT_SAMPLE_CAMERA_MANIPULATOR_H
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