65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
#include "Camera.hpp"
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#include <glm/gtc/matrix_transform.hpp>
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#include <glm/gtx/rotate_vector.hpp>
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namespace Diggler {
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Camera::Camera() {
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m_worldUp = glm::vec3(0, 1, 0);
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update();
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}
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void Camera::setProjection(const glm::mat4& m) {
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m_projMatrix = m;
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update();
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}
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void Camera::setPersp(float rad, float ratio, float near, float far) {
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frustum.setCamInternals(rad, ratio, near, far);
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setProjection(glm::perspective(rad, ratio, near, far));
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}
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void Camera::lookAt(const glm::vec3& l) {
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m_lookAt = l;
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update();
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}
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void Camera::lookAtAbs(const glm::vec3& l) {
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m_lookAt = m_position - l;
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update();
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}
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void Camera::setPosition(const glm::vec3& p) {
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m_position = p;
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update();
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}
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void Camera::update() {
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m_viewMatrix = glm::lookAt(m_position, m_position + m_lookAt, m_worldUp);
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frustum.setCamDef(m_position, m_position + m_lookAt, m_worldUp);
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m_up = glm::normalize(glm::cross(glm::cross(m_lookAt, m_worldUp), m_lookAt));
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m_pvMatrix = m_projMatrix * m_viewMatrix;
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m_skyMatrix = m_projMatrix * glm::lookAt(glm::vec3(), m_lookAt, m_worldUp);
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}
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const glm::mat4& Camera::getVMatrix() const {
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return m_viewMatrix;
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}
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const glm::mat4& Camera::getPVMatrix() const {
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return m_pvMatrix;
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}
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const glm::mat4& Camera::getSkyMatrix() const {
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return m_skyMatrix;
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}
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const glm::vec3& Camera::getUp() const {
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return m_up;
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}
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const glm::vec3& Camera::getLookAt() const {
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return m_lookAt;
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}
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} |