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Use is_zero_approx and fix spelling in CameraMatrix invert

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Aaron Franke 2022-02-24 12:19:16 -06:00
parent 0393057e36
commit 061ab30051
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GPG Key ID: 40A1750B977E56BF
1 changed files with 5 additions and 7 deletions
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12
core/math/camera_matrix.cpp
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@ -436,9 +436,7 @@ void CameraMatrix::invert() {
int pvt_i[4], pvt_j[4]; /* Locations of pivot matrix */
real_t pvt_val; /* Value of current pivot element */
real_t hold; /* Temporary storage */
real_t determinat; /* Determinant */
determinat = 1.0;
real_t determinant = 1.0f;
for (k = 0; k < 4; k++) {
/** Locate k'th pivot element **/
pvt_val = matrix[k][k]; /** Initialize for search **/
@ -446,7 +444,7 @@ void CameraMatrix::invert() {
pvt_j[k] = k;
for (i = k; i < 4; i++) {
for (j = k; j < 4; j++) {
if (Math::absd(matrix[i][j]) > Math::absd(pvt_val)) {
if (Math::abs(matrix[i][j]) > Math::abs(pvt_val)) {
pvt_i[k] = i;
pvt_j[k] = j;
pvt_val = matrix[i][j];
@ -455,9 +453,9 @@ void CameraMatrix::invert() {
}
/** Product of pivots, gives determinant when finished **/
determinat *= pvt_val;
if (Math::absd(determinat) < 1e-7) {
return; //(false); /** Matrix is singular (zero determinant). **/
determinant *= pvt_val;
if (Math::is_zero_approx(determinant)) {
return; /** Matrix is singular (zero determinant). **/
}
/** "Interchange" rows (with sign change stuff) **/