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-rw-r--r--src/core/CameraMatrix.cpp40
1 files changed, 6 insertions, 34 deletions
diff --git a/src/core/CameraMatrix.cpp b/src/core/CameraMatrix.cpp
index b1b7f20..9f4c72a 100644
--- a/src/core/CameraMatrix.cpp
+++ b/src/core/CameraMatrix.cpp
@@ -31,29 +31,22 @@
#include "CameraMatrix.hpp"
void CameraMatrix::set_identity() {
-
for (int i = 0; i < 4; i++) {
-
for (int j = 0; j < 4; j++) {
-
matrix[i][j] = (i == j) ? 1 : 0;
}
}
}
void CameraMatrix::set_zero() {
-
for (int i = 0; i < 4; i++) {
-
for (int j = 0; j < 4; j++) {
-
matrix[i][j] = 0;
}
}
}
Plane CameraMatrix::xform4(const Plane &p_vec4) const {
-
Plane ret;
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;
@@ -64,7 +57,6 @@ Plane CameraMatrix::xform4(const Plane &p_vec4) const {
}
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) {
-
if (p_flip_fov) {
p_fovy_degrees = get_fovy(p_fovy_degrees, 1.0 / p_aspect);
}
@@ -157,7 +149,6 @@ void CameraMatrix::set_for_hmd(int p_eye, real_t p_aspect, real_t p_intraocular_
};
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) {
-
set_identity();
matrix[0][0] = 2.0 / (p_right - p_left);
@@ -170,7 +161,6 @@ void CameraMatrix::set_orthogonal(real_t p_left, real_t p_right, real_t p_bottom
}
void CameraMatrix::set_orthogonal(real_t p_size, real_t p_aspect, real_t p_znear, real_t p_zfar, bool p_flip_fov) {
-
if (!p_flip_fov) {
p_size *= p_aspect;
}
@@ -179,7 +169,6 @@ void CameraMatrix::set_orthogonal(real_t p_size, real_t p_aspect, real_t p_znear
}
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) {
-
ERR_FAIL_COND(p_right <= p_left);
ERR_FAIL_COND(p_top <= p_bottom);
ERR_FAIL_COND(p_far <= p_near);
@@ -220,7 +209,6 @@ void CameraMatrix::set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset,
}
real_t CameraMatrix::get_z_far() const {
-
const real_t *matrix = (const real_t *)this->matrix;
Plane new_plane = Plane(matrix[3] - matrix[2],
matrix[7] - matrix[6],
@@ -233,7 +221,6 @@ real_t CameraMatrix::get_z_far() const {
return new_plane.d;
}
real_t CameraMatrix::get_z_near() const {
-
const real_t *matrix = (const real_t *)this->matrix;
Plane new_plane = Plane(matrix[3] + matrix[2],
matrix[7] + matrix[6],
@@ -245,7 +232,6 @@ real_t CameraMatrix::get_z_near() const {
}
Vector2 CameraMatrix::get_viewport_half_extents() const {
-
const real_t *matrix = (const real_t *)this->matrix;
///////--- Near Plane ---///////
Plane near_plane = Plane(matrix[3] + matrix[2],
@@ -274,7 +260,6 @@ Vector2 CameraMatrix::get_viewport_half_extents() const {
}
bool CameraMatrix::get_endpoints(const Transform &p_transform, Vector3 *p_8points) const {
-
std::vector<Plane> planes = get_projection_planes(Transform());
const Planes intersections[8][3] = {
{ PLANE_FAR, PLANE_LEFT, PLANE_TOP },
@@ -288,7 +273,6 @@ bool CameraMatrix::get_endpoints(const Transform &p_transform, Vector3 *p_8point
};
for (int i = 0; i < 8; i++) {
-
Vector3 point;
bool res = planes[intersections[i][0]].intersect_3(planes[intersections[i][1]], planes[intersections[i][2]], &point);
ERR_FAIL_COND_V(!res, false);
@@ -299,7 +283,6 @@ bool CameraMatrix::get_endpoints(const Transform &p_transform, Vector3 *p_8point
}
std::vector<Plane> CameraMatrix::get_projection_planes(const Transform &p_transform) const {
-
/** Fast Plane Extraction from combined modelview/projection matrices.
* References:
* https://web.archive.org/web/20011221205252/http://www.markmorley.com/opengl/frustumculling.html
@@ -382,14 +365,12 @@ std::vector<Plane> CameraMatrix::get_projection_planes(const Transform &p_transf
}
CameraMatrix CameraMatrix::inverse() const {
-
CameraMatrix cm = *this;
cm.invert();
return cm;
}
void CameraMatrix::invert() {
-
int i, j, k;
int pvt_i[4], pvt_j[4]; /* Locations of pivot matrix */
real_t pvt_val; /* Value of current pivot element */
@@ -440,20 +421,23 @@ void CameraMatrix::invert() {
/** Divide column by minus pivot value **/
for (i = 0; i < 4; i++) {
- if (i != k) matrix[i][k] /= (-pvt_val);
+ if (i != k)
+ matrix[i][k] /= (-pvt_val);
}
/** Reduce the matrix **/
for (i = 0; i < 4; i++) {
hold = matrix[i][k];
for (j = 0; j < 4; j++) {
- if (i != k && j != k) matrix[i][j] += hold * matrix[k][j];
+ if (i != k && j != k)
+ matrix[i][j] += hold * matrix[k][j];
}
}
/** Divide row by pivot **/
for (j = 0; j < 4; j++) {
- if (j != k) matrix[k][j] /= pvt_val;
+ if (j != k)
+ matrix[k][j] /= pvt_val;
}
/** Replace pivot by reciprocal (at last we can touch it). **/
@@ -483,12 +467,10 @@ void CameraMatrix::invert() {
}
CameraMatrix::CameraMatrix() {
-
set_identity();
}
CameraMatrix CameraMatrix::operator*(const CameraMatrix &p_matrix) const {
-
CameraMatrix new_matrix;
for (int j = 0; j < 4; j++) {
@@ -504,7 +486,6 @@ CameraMatrix CameraMatrix::operator*(const CameraMatrix &p_matrix) const {
}
void CameraMatrix::set_light_bias() {
-
real_t *m = &matrix[0][0];
m[0] = 0.5;
@@ -526,7 +507,6 @@ void CameraMatrix::set_light_bias() {
}
void CameraMatrix::set_light_atlas_rect(const Rect2 &p_rect) {
-
real_t *m = &matrix[0][0];
m[0] = p_rect.size.width;
@@ -548,7 +528,6 @@ void CameraMatrix::set_light_atlas_rect(const Rect2 &p_rect) {
}
CameraMatrix::operator String() const {
-
String str;
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
@@ -558,20 +537,17 @@ CameraMatrix::operator String() const {
}
real_t CameraMatrix::get_aspect() const {
-
Vector2 vp_he = get_viewport_half_extents();
return vp_he.x / vp_he.y;
}
int CameraMatrix::get_pixels_per_meter(int p_for_pixel_width) const {
-
Vector3 result = xform(Vector3(1, 0, -1));
return int((result.x * 0.5 + 0.5) * p_for_pixel_width);
}
bool CameraMatrix::is_orthogonal() const {
-
return matrix[3][3] == 1.0;
}
@@ -599,7 +575,6 @@ real_t CameraMatrix::get_fov() const {
}
void CameraMatrix::make_scale(const Vector3 &p_scale) {
-
set_identity();
matrix[0][0] = p_scale.x;
matrix[1][1] = p_scale.y;
@@ -607,7 +582,6 @@ void CameraMatrix::make_scale(const Vector3 &p_scale) {
}
void CameraMatrix::scale_translate_to_fit(const AABB &p_aabb) {
-
Vector3 min = p_aabb.position;
Vector3 max = p_aabb.position + p_aabb.size;
@@ -633,7 +607,6 @@ void CameraMatrix::scale_translate_to_fit(const AABB &p_aabb) {
}
CameraMatrix::operator Transform() const {
-
Transform tr;
const real_t *m = &matrix[0][0];
@@ -657,7 +630,6 @@ CameraMatrix::operator Transform() const {
}
CameraMatrix::CameraMatrix(const Transform &p_transform) {
-
const Transform &tr = p_transform;
real_t *m = &matrix[0][0];