void SpatialCamera::setFrame(const Vec3& position, const Vec3& right, const Vec3& up, const Vec3& back) {
m_worldTransform.setTranslate(position);
m_worldTransform.setRotate(Quat(right, up, back));
updateViewMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
Camera::Camera(const Type& type)
: m_type(type)
, m_position(Vec3::zero)
, m_right(Vec3::xxx)
, m_up(Vec3::yyy)
, m_front(Vec3::zzz)
, m_upFovDegrees(0.0f)
, m_aspectRatio(0.0f)
, m_rightMin(0.0f)
, m_rightMax(0.0f)
, m_upMin(0.0f)
, m_upMax(0.0f)
, m_frontMin(0.0f)
, m_frontMax(0.0f)
, m_preViewMatrix(Mat4::identity)
, m_viewMatrix(Mat4::identity)
, m_orthographicProjectionMatrix(Mat4::identity)
, m_perspectiveProjectionMatrix(Mat4::identity)
, m_viewOrthographicProjectionMatrix(Mat4::identity)
, m_viewPerspectiveProjectionMatrix(Mat4::identity)
, m_postProjectionMatrix(Mat4::identity) {
updateViewMatrix();
updateProjectionMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void Camera::setAxes(const Vec3& right, const Vec3& up, const Vec3& front) {
m_right = right;
m_up = up;
m_front = front;
updateViewMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
vec3 Camera::getRealCameraPosition()
{
updateViewProjectionMatrix();
vec3 relative(0, 0, camDist);
relative = glm::rotateX(relative, pitch);
relative = glm::rotateY(relative, yaw);
return getPosition() + relative;
}
void SpatialCamera::setFrustum(const float& l, const float& r, const float& b, const float& t, const float& n, const float& f) {
m_projectionParameters.l = l;
m_projectionParameters.r = r;
m_projectionParameters.b = b;
m_projectionParameters.t = t;
m_projectionParameters.n = n;
m_projectionParameters.f = f;
updateProjectionMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void Camera::setFrustum(const float& rightMin, const float& rightMax, const float& upMin, const float& upMax, const float& frontMin, const float& frontMax) {
m_rightMin = rightMin;
m_rightMax = rightMax;
m_upMin = upMin;
m_upMax = upMax;
m_frontMin = frontMin;
m_frontMax = frontMax;
updateProjectionMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void SpatialCamera::setFrustum(const float& upFovRadian, const float& aspectRatio, const float& n, const float& f) {
m_upFovRadian = upFovRadian;
m_aspectRatio = aspectRatio;
m_projectionParameters.n = n;
m_projectionParameters.f = f;
m_projectionParameters.t = n * tanf(0.5f * upFovRadian);
m_projectionParameters.r = aspectRatio * m_projectionParameters.t;
m_projectionParameters.b = -m_projectionParameters.t;
m_projectionParameters.l = -m_projectionParameters.r;
updateProjectionMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void Camera::setFrustum(const float& upFovDegrees, const float& aspectRatio, const float& frontMin, const float& frontMax) {
m_upFovDegrees = upFovDegrees;
m_aspectRatio = aspectRatio;
m_frontMin = frontMin;
m_frontMax = frontMax;
m_upMax = frontMin * tan(0.5f * upFovDegrees * M_DEGREE_TO_RADIAN);
m_rightMax = aspectRatio * m_upMax;
m_upMin = -m_upMax;
m_rightMin = -m_rightMax;
updateProjectionMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void SpatialCamera::setFrame(const Vec3& position, const Vec3& lookAtPoint) {
Vec3 back = position - lookAtPoint;
back.normalize();
Vec3 up = Vec3(0.0f, 1.0f, 0.0f);
Vec3 right = cross(up, back);
right.normalize();
up = cross(back, right);
up.normalize();
m_worldTransform.setTranslate(position);
m_worldTransform.setRotate(Quat(right, up, back));
updateViewMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
SpatialCamera::SpatialCamera(const ProjectionType& type, const Mat4& ndc, const Transform3& transform)
: Spatial3(transform)
, m_projectionNdc(ndc)
, m_projectionType(type)
//, m_projectionRange(ForwardFiniteZ)
//, m_projectionRange(ReverseInfiniteZ)
//, m_projectionRange(ReverseFiniteZ)
, m_projectionRange(ReverseInfiniteZ)
, m_projectionParameters(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f)
, m_upFovRadian(0.0f)
, m_aspectRatio(0.0f)
, m_viewMatrix(Mat4::identity)
, m_orthographicProjectionMatrix(Mat4::identity)
, m_perspectiveProjectionMatrix(Mat4::identity)
, m_viewOrthographicProjectionMatrix(Mat4::identity)
, m_viewPerspectiveProjectionMatrix(Mat4::identity) {
updateViewMatrix();
updateProjectionMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void SpatialCamera::setPosition(const Vec3& position) {
m_worldTransform.setTranslate(position);
updateViewMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void SpatialCamera::setScale(const Vec3& scale) {
m_worldTransform.setScale(scale);
updateViewMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void SpatialCamera::setRotate(const Quat& rotate) {
m_worldTransform.setRotate(rotate);
updateViewMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void Camera::setPostProjectionMatrix(const Mat4& postProjectionMatrix) {
m_postProjectionMatrix = postProjectionMatrix;
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
void Camera::setPosition(const Vec3& position) {
m_position = position;
updateViewMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}
mat4 Camera::getVPMatrix()
{
updateViewProjectionMatrix();
return vpMatrix;
}
void SpatialCamera::setType(const ProjectionType& type) {
m_projectionType = type;
updateProjectionMatrix();
updateViewProjectionMatrix();
updateFrustumPlanesAndPoints();
}