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Linloir
f5f2247274
- remove roll - add constructor (position, yaw, pitch) - add API setPosition(pos) - set default zoom to 90
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
#pragma once
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#include <GLM/ext/matrix_transform.hpp>
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#include "camera.h"
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// If no default input, set camera to (1, 1, 1) looking at (0, 0, 0)
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Camera::Camera() : Camera(defaultOrigin(), defaultTarget()) {}
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Camera::Camera(glm::vec3 position, glm::vec3 target) : _position(position) {
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glm::vec3 direction = glm::normalize(target - position);
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glm::vec3 right = glm::normalize(glm::cross(direction, _worldUp));
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glm::vec3 up = glm::normalize(glm::cross(right, direction));
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_right = right;
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_front = direction;
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_up = up;
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_yaw = glm::degrees(glm::atan(direction.z, direction.x));
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_pitch = glm::degrees(glm::asin(direction.y));
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}
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Camera::Camera(glm::vec3 position, glm::vec3 direction, glm::vec3 right, glm::vec3 up) :
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_position(position), _front(direction), _right(right), _up(up)
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{
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_yaw = glm::degrees(glm::atan(direction.z, direction.x));
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_pitch = glm::degrees(glm::asin(direction.y));
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}
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Camera::Camera(glm::vec3 position, float yaw, float pitch) :
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_position(position), _yaw(yaw), _pitch(pitch)
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{
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updateCameraState();
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}
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void Camera::updateCameraState() {
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// Update front vector
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glm::vec3 front;
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front.x = cos(glm::radians(_yaw)) * cos(glm::radians(_pitch));
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front.y = sin(glm::radians(_pitch));
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front.z = sin(glm::radians(_yaw)) * cos(glm::radians(_pitch));
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_front = glm::normalize(front);
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// Update right vector
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_right = glm::normalize(glm::cross(_front, _worldUp));
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// Update up vector
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_up = glm::normalize(glm::cross(_right, _front));
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} |