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Renamed CameraMatrix to Projection.
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@ -1,5 +1,5 @@
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/*************************************************************************/
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/* CameraMatrix.hpp */
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/* Projection.hpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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@ -43,7 +43,7 @@ namespace {
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using namespace godot;
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} // namespace
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struct CameraMatrix {
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struct Projection {
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enum Planes {
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PLANE_NEAR,
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PLANE_FAR,
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@ -93,9 +93,9 @@ struct CameraMatrix {
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Vector2 get_viewport_half_extents() const;
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void invert();
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CameraMatrix inverse() const;
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Projection inverse() const;
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CameraMatrix operator*(const CameraMatrix &p_matrix) const;
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Projection operator*(const Projection &p_matrix) const;
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Plane xform4(const Plane &p_vec4) const;
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inline Vector3 xform(const Vector3 &p_vec3) const;
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@ -107,12 +107,12 @@ struct CameraMatrix {
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int get_pixels_per_meter(int p_for_pixel_width) const;
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operator Transform() const;
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CameraMatrix();
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CameraMatrix(const Transform &p_transform);
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~CameraMatrix();
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Projection();
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Projection(const Transform &p_transform);
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~Projection();
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};
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Vector3 CameraMatrix::xform(const Vector3 &p_vec3) const {
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Vector3 Projection::xform(const Vector3 &p_vec3) const {
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Vector3 ret;
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ret.x = matrix[0][0] * p_vec3.x + matrix[1][0] * p_vec3.y + matrix[2][0] * p_vec3.z + matrix[3][0];
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ret.y = matrix[0][1] * p_vec3.x + matrix[1][1] * p_vec3.y + matrix[2][1] * p_vec3.z + matrix[3][1];
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@ -1,5 +1,5 @@
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/*************************************************************************/
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/* CameraMatrix.cpp */
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/* Projection.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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@ -28,9 +28,9 @@
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "CameraMatrix.hpp"
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#include "Projection.hpp"
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void CameraMatrix::set_identity() {
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void Projection::set_identity() {
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for (int i = 0; i < 4; i++) {
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for (int j = 0; j < 4; j++) {
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matrix[i][j] = (i == j) ? 1 : 0;
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@ -38,7 +38,7 @@ void CameraMatrix::set_identity() {
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}
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}
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void CameraMatrix::set_zero() {
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void Projection::set_zero() {
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for (int i = 0; i < 4; i++) {
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for (int j = 0; j < 4; j++) {
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matrix[i][j] = 0;
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@ -46,7 +46,7 @@ void CameraMatrix::set_zero() {
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}
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}
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Plane CameraMatrix::xform4(const Plane &p_vec4) const {
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Plane Projection::xform4(const Plane &p_vec4) const {
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Plane ret;
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ret.normal.x = matrix[0][0] * p_vec4.normal.x + matrix[1][0] * p_vec4.normal.y + matrix[2][0] * p_vec4.normal.z + matrix[3][0] * p_vec4.d;
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@ -56,7 +56,7 @@ Plane CameraMatrix::xform4(const Plane &p_vec4) const {
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return ret;
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}
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void CameraMatrix::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov) {
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void Projection::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov) {
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if (p_flip_fov) {
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p_fovy_degrees = get_fovy(p_fovy_degrees, 1.0 / p_aspect);
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}
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@ -82,7 +82,7 @@ void CameraMatrix::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_
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matrix[3][3] = 0;
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}
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void CameraMatrix::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov, int p_eye, real_t p_intraocular_dist, real_t p_convergence_dist) {
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void Projection::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov, int p_eye, real_t p_intraocular_dist, real_t p_convergence_dist) {
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if (p_flip_fov) {
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p_fovy_degrees = get_fovy(p_fovy_degrees, 1.0 / p_aspect);
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}
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@ -114,13 +114,13 @@ void CameraMatrix::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_
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set_frustum(left, right, -ymax, ymax, p_z_near, p_z_far);
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// translate matrix by (modeltranslation, 0.0, 0.0)
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CameraMatrix cm;
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Projection cm;
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cm.set_identity();
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cm.matrix[3][0] = modeltranslation;
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*this = *this * cm;
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}
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void CameraMatrix::set_for_hmd(int p_eye, real_t p_aspect, real_t p_intraocular_dist, real_t p_display_width, real_t p_display_to_lens, real_t p_oversample, real_t p_z_near, real_t p_z_far) {
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void Projection::set_for_hmd(int p_eye, real_t p_aspect, real_t p_intraocular_dist, real_t p_display_width, real_t p_display_to_lens, real_t p_oversample, real_t p_z_near, real_t p_z_far) {
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// we first calculate our base frustum on our values without taking our lens magnification into account.
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real_t f1 = (p_intraocular_dist * 0.5) / p_display_to_lens;
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real_t f2 = ((p_display_width - p_intraocular_dist) * 0.5) / p_display_to_lens;
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@ -148,7 +148,7 @@ void CameraMatrix::set_for_hmd(int p_eye, real_t p_aspect, real_t p_intraocular_
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};
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};
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void CameraMatrix::set_orthogonal(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_znear, real_t p_zfar) {
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void Projection::set_orthogonal(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_znear, real_t p_zfar) {
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set_identity();
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matrix[0][0] = 2.0 / (p_right - p_left);
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@ -160,7 +160,7 @@ void CameraMatrix::set_orthogonal(real_t p_left, real_t p_right, real_t p_bottom
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matrix[3][3] = 1.0;
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}
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void CameraMatrix::set_orthogonal(real_t p_size, real_t p_aspect, real_t p_znear, real_t p_zfar, bool p_flip_fov) {
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void Projection::set_orthogonal(real_t p_size, real_t p_aspect, real_t p_znear, real_t p_zfar, bool p_flip_fov) {
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if (!p_flip_fov) {
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p_size *= p_aspect;
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}
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@ -168,7 +168,7 @@ void CameraMatrix::set_orthogonal(real_t p_size, real_t p_aspect, real_t p_znear
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set_orthogonal(-p_size / 2, +p_size / 2, -p_size / p_aspect / 2, +p_size / p_aspect / 2, p_znear, p_zfar);
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}
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void CameraMatrix::set_frustum(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_near, real_t p_far) {
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void Projection::set_frustum(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_near, real_t p_far) {
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ERR_FAIL_COND(p_right <= p_left);
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ERR_FAIL_COND(p_top <= p_bottom);
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ERR_FAIL_COND(p_far <= p_near);
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@ -200,7 +200,7 @@ void CameraMatrix::set_frustum(real_t p_left, real_t p_right, real_t p_bottom, r
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te[15] = 0;
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}
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void CameraMatrix::set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset, real_t p_near, real_t p_far, bool p_flip_fov) {
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void Projection::set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset, real_t p_near, real_t p_far, bool p_flip_fov) {
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if (!p_flip_fov) {
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p_size *= p_aspect;
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}
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@ -208,7 +208,7 @@ void CameraMatrix::set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset,
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set_frustum(-p_size / 2 + p_offset.x, +p_size / 2 + p_offset.x, -p_size / p_aspect / 2 + p_offset.y, +p_size / p_aspect / 2 + p_offset.y, p_near, p_far);
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}
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real_t CameraMatrix::get_z_far() const {
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real_t Projection::get_z_far() const {
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const real_t *matrix = (const real_t *)this->matrix;
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Plane new_plane = Plane(matrix[3] - matrix[2],
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matrix[7] - matrix[6],
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@ -220,7 +220,7 @@ real_t CameraMatrix::get_z_far() const {
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return new_plane.d;
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}
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real_t CameraMatrix::get_z_near() const {
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real_t Projection::get_z_near() const {
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const real_t *matrix = (const real_t *)this->matrix;
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Plane new_plane = Plane(matrix[3] + matrix[2],
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matrix[7] + matrix[6],
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@ -231,7 +231,7 @@ real_t CameraMatrix::get_z_near() const {
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return new_plane.d;
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}
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Vector2 CameraMatrix::get_viewport_half_extents() const {
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Vector2 Projection::get_viewport_half_extents() const {
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const real_t *matrix = (const real_t *)this->matrix;
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///////--- Near Plane ---///////
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Plane near_plane = Plane(matrix[3] + matrix[2],
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@ -259,7 +259,7 @@ Vector2 CameraMatrix::get_viewport_half_extents() const {
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return Vector2(res.x, res.y);
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}
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bool CameraMatrix::get_endpoints(const Transform &p_transform, Vector3 *p_8points) const {
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bool Projection::get_endpoints(const Transform &p_transform, Vector3 *p_8points) const {
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std::vector<Plane> planes = get_projection_planes(Transform());
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const Planes intersections[8][3] = {
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{ PLANE_FAR, PLANE_LEFT, PLANE_TOP },
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@ -282,7 +282,7 @@ bool CameraMatrix::get_endpoints(const Transform &p_transform, Vector3 *p_8point
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return true;
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}
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std::vector<Plane> CameraMatrix::get_projection_planes(const Transform &p_transform) const {
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std::vector<Plane> Projection::get_projection_planes(const Transform &p_transform) const {
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/** Fast Plane Extraction from combined modelview/projection matrices.
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* References:
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* https://web.archive.org/web/20011221205252/http://www.markmorley.com/opengl/frustumculling.html
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@ -364,13 +364,13 @@ std::vector<Plane> CameraMatrix::get_projection_planes(const Transform &p_transf
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return planes;
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}
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CameraMatrix CameraMatrix::inverse() const {
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CameraMatrix cm = *this;
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Projection Projection::inverse() const {
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Projection cm = *this;
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cm.invert();
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return cm;
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}
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void CameraMatrix::invert() {
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void Projection::invert() {
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int i, j, k;
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int pvt_i[4], pvt_j[4]; /* Locations of pivot matrix */
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real_t pvt_val; /* Value of current pivot element */
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@ -466,12 +466,12 @@ void CameraMatrix::invert() {
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}
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}
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CameraMatrix::CameraMatrix() {
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Projection::Projection() {
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set_identity();
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}
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CameraMatrix CameraMatrix::operator*(const CameraMatrix &p_matrix) const {
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CameraMatrix new_matrix;
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Projection Projection::operator*(const Projection &p_matrix) const {
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Projection new_matrix;
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for (int j = 0; j < 4; j++) {
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for (int i = 0; i < 4; i++) {
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@ -485,7 +485,7 @@ CameraMatrix CameraMatrix::operator*(const CameraMatrix &p_matrix) const {
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return new_matrix;
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}
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void CameraMatrix::set_light_bias() {
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void Projection::set_light_bias() {
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real_t *m = &matrix[0][0];
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m[0] = 0.5;
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@ -506,7 +506,7 @@ void CameraMatrix::set_light_bias() {
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m[15] = 1.0;
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}
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void CameraMatrix::set_light_atlas_rect(const Rect2 &p_rect) {
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void Projection::set_light_atlas_rect(const Rect2 &p_rect) {
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real_t *m = &matrix[0][0];
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m[0] = p_rect.size.width;
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@ -527,7 +527,7 @@ void CameraMatrix::set_light_atlas_rect(const Rect2 &p_rect) {
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m[15] = 1.0;
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}
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CameraMatrix::operator String() const {
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Projection::operator String() const {
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String str;
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for (int i = 0; i < 4; i++)
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for (int j = 0; j < 4; j++)
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@ -536,22 +536,22 @@ CameraMatrix::operator String() const {
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return str;
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}
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real_t CameraMatrix::get_aspect() const {
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real_t Projection::get_aspect() const {
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Vector2 vp_he = get_viewport_half_extents();
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return vp_he.x / vp_he.y;
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}
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int CameraMatrix::get_pixels_per_meter(int p_for_pixel_width) const {
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int Projection::get_pixels_per_meter(int p_for_pixel_width) const {
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Vector3 result = xform(Vector3(1, 0, -1));
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return int((result.x * 0.5 + 0.5) * p_for_pixel_width);
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}
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bool CameraMatrix::is_orthogonal() const {
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bool Projection::is_orthogonal() const {
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return matrix[3][3] == 1.0;
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}
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real_t CameraMatrix::get_fov() const {
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real_t Projection::get_fov() const {
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const real_t *matrix = (const real_t *)this->matrix;
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Plane right_plane = Plane(matrix[3] - matrix[0],
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@ -574,14 +574,14 @@ real_t CameraMatrix::get_fov() const {
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}
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}
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void CameraMatrix::make_scale(const Vector3 &p_scale) {
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void Projection::make_scale(const Vector3 &p_scale) {
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set_identity();
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matrix[0][0] = p_scale.x;
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matrix[1][1] = p_scale.y;
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matrix[2][2] = p_scale.z;
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}
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void CameraMatrix::scale_translate_to_fit(const AABB &p_aabb) {
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void Projection::scale_translate_to_fit(const AABB &p_aabb) {
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Vector3 min = p_aabb.position;
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Vector3 max = p_aabb.position + p_aabb.size;
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@ -606,7 +606,7 @@ void CameraMatrix::scale_translate_to_fit(const AABB &p_aabb) {
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matrix[3][3] = 1;
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}
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CameraMatrix::operator Transform() const {
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Projection::operator Transform() const {
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Transform tr;
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const real_t *m = &matrix[0][0];
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@ -629,7 +629,7 @@ CameraMatrix::operator Transform() const {
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return tr;
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}
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CameraMatrix::CameraMatrix(const Transform &p_transform) {
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Projection::Projection(const Transform &p_transform) {
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const Transform &tr = p_transform;
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real_t *m = &matrix[0][0];
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@ -651,5 +651,5 @@ CameraMatrix::CameraMatrix(const Transform &p_transform) {
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m[15] = 1.0;
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}
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CameraMatrix::~CameraMatrix() {
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Projection::~Projection() {
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}
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