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NaifBanana
2026-04-04 14:39:17 -05:00
parent 0ac355a4a0
commit 7d44f8dfff
22 changed files with 19 additions and 19 deletions
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engine/NBGraphics/Camera.hpp
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#pragma once
#ifndef _NB_CAMERA
#define _NB_CAMERA
#include <GLLoad.h>
#include <glm/glm.hpp>
#include <glm/gtc/matrix_inverse.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
namespace NB {
class Camera {
public:
typedef glm::vec3 Vec3;
typedef glm::mat4 Mat4;
enum CameraTypeEnum : unsigned char {
None,
Orthographic,
Perspective
};
const CameraTypeEnum CameraType = CameraTypeEnum::None;
static Vec3 normCross(const Vec3&, const Vec3&);
static Vec3 transformVec(const Mat4&, const Vec3&);
Camera(
const Vec3& pos=Vec3(0.0f, 0.0f, -1.0f),
const Vec3& tar=Vec3(0.0f, 0.0f, 0.0f),
const Vec3& up =Vec3(0.0f, 1.0f, 0.0f)
);
Vec3 getPos() const;
Vec3 getTarget() const;
Vec3 getDirection() const;
Vec3 getWorldUp() const;
Vec3 getUp() const;
Vec3 getRight() const;
Mat4 getViewMatrix() const;
Mat4 getProjectionMatrix() const;
Mat4 getFlattenedMatrices() const;
bool isUpLocked() const;
void setProjection(const Mat4&);
void setPos(const Vec3&);
void setTarget(const Vec3&);
void setDirection(const Vec3&);
void setWorldUp(const Vec3&);
void lockToWorldUp(bool lock);
void resetUp();
void addPos(const Vec3&);
void panPos(const Vec3&);
void panPosRelative(const Vec3&);
void addTarget(const Vec3&);
void roll(float);
void pitch(float);
void yaw(float);
protected:
Vec3 _pos;
Vec3 _tar;
Vec3 _dir;
Vec3 _world_up;
Vec3 _up;
Vec3 _right;
Mat4 _view;
Mat4 _proj;
bool _lock_world_up = true;
void _calcLook();
};
class OrthographicCamera : public Camera {
public:
const CameraTypeEnum CameraType = CameraTypeEnum::Orthographic;
OrthographicCamera(
const Vec3& pos=Vec3(0.0f, 0.0f, -1.0f),
const Vec3& tar=Vec3(0.0f, 0.0f, 0.0f),
const Vec3& up =Vec3(0.0f, 1.0f, 0.0f),
float left = -1.0f,
float right = 1.0f,
float bottom = -1.0f,
float top = 1.0f,
float near = 0.001f,
float far = 1.0f
);
float getLeftPlane() const;
float getRightPlane() const;
float getBottomPlane() const;
float getTopPlane() const;
float getNearPlane() const;
float getFarPlane() const;
void setLeftPlane(float);
void setRightPlane(float);
void setBottomPlane(float);
void setTopPlane(float);
void setNearPlane(float);
void setFarPlane(float);
void setOrthographicProjection(float left=-1.0, float right=1.0, float bottom=-1.0, float top=1.0, float near=.001, float far=1.0);
void setViewingVolume(float width, float height, float depth);
protected:
float _leftPlane, _rightPlane, _topPlane, _bottomPlane, _nearPlane, _farPlane;
void _calcView();
using Camera::setProjection;
};
class PerspectiveCamera : public Camera {
public:
const CameraTypeEnum CameraType = CameraTypeEnum::Perspective;
PerspectiveCamera(
const Vec3& pos=Vec3(0.0f, 0.0f, -1.0f),
const Vec3& tar=Vec3(0.0f, 0.0f, 0.0f),
const Vec3& up =Vec3(0.0f, 1.0f, 0.0f),
float fov = 45.0f,
float aspectRatio = 1.0f,
float near = 0.001f,
float far = 1.0f
);
float getFOV() const;
float getAspectRatio() const;
float getNearPlane() const;
float getFarPlane() const;
void setFOV(float);
void setAspectRatio(float);
void setNearPlane(float);
void setFarPlane(float);
void setPerspectiveProjection(float fov=45, float aspectRatio=1.0f, float near=0.001f, float far=1.0f);
protected:
float _fov, _ratio, _nearPlane, _farPlane;
void _calcView();
using Camera::setProjection;
};
}
#endif // _NB_CAMERA