diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_matrix.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_matrix.c | 70 |
1 files changed, 63 insertions, 7 deletions
diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c index 6727e6a337d..6b5efc3f8c4 100644 --- a/source/blender/blenlib/intern/math_matrix.c +++ b/source/blender/blenlib/intern/math_matrix.c @@ -24,7 +24,6 @@ */ #include "BLI_math.h" -#include <assert.h> #include "BLI_strict_flags.h" @@ -275,7 +274,7 @@ void mul_m4_m4m4(float R[4][4], const float A[4][4], const float B[4][4]) void mul_m4_m4m4_uniq(float R[4][4], const float A[4][4], const float B[4][4]) { - BLI_assert(R != A && R != B); + BLI_assert(!ELEM(R, A, B)); /* matrix product: R[j][k] = A[j][i] . B[i][k] */ #ifdef __SSE2__ @@ -320,7 +319,7 @@ void mul_m4_m4m4_uniq(float R[4][4], const float A[4][4], const float B[4][4]) void mul_m4_m4m4_db_uniq(double R[4][4], const double A[4][4], const double B[4][4]) { - BLI_assert(R != A && R != B); + BLI_assert(!ELEM(R, A, B)); /* matrix product: R[j][k] = A[j][i] . B[i][k] */ @@ -348,7 +347,7 @@ void mul_m4_m4m4_db_uniq(double R[4][4], const double A[4][4], const double B[4] void mul_m4db_m4db_m4fl_uniq(double R[4][4], const double A[4][4], const float B[4][4]) { /* Remove second check since types don't match. */ - BLI_assert(R != A /* && R != B */); + BLI_assert(!ELEM(R, A /*, B */)); /* matrix product: R[j][k] = A[j][i] . B[i][k] */ @@ -420,7 +419,7 @@ void mul_m3_m3_post(float R[3][3], const float B[3][3]) void mul_m3_m3m3_uniq(float R[3][3], const float A[3][3], const float B[3][3]) { - BLI_assert(R != A && R != B); + BLI_assert(!ELEM(R, A, B)); R[0][0] = B[0][0] * A[0][0] + B[0][1] * A[1][0] + B[0][2] * A[2][0]; R[0][1] = B[0][0] * A[0][1] + B[0][1] * A[1][1] + B[0][2] * A[2][1]; @@ -536,8 +535,10 @@ void mul_m3_m4m4(float R[3][3], const float A[4][4], const float B[4][4]) R[2][2] = B[2][0] * A[0][2] + B[2][1] * A[1][2] + B[2][2] * A[2][2]; } +/* -------------------------------------------------------------------- */ /** \name Macro helpers for: mul_m3_series * \{ */ + void _va_mul_m3_series_3(float r[3][3], const float m1[3][3], const float m2[3][3]) { mul_m3_m3m3(r, m1, m2); @@ -622,8 +623,10 @@ void _va_mul_m3_series_9(float r[3][3], } /** \} */ +/* -------------------------------------------------------------------- */ /** \name Macro helpers for: mul_m4_series * \{ */ + void _va_mul_m4_series_3(float r[4][4], const float m1[4][4], const float m2[4][4]) { mul_m4_m4m4(r, m1, m2); @@ -2156,7 +2159,7 @@ void mat4_to_loc_quat(float loc[3], float quat[4], const float wmat[4][4]) copy_m3_m4(mat3, wmat); normalize_m3_m3(mat3_n, mat3); - /* so scale doesn't interfere with rotation [#24291] */ + /* so scale doesn't interfere with rotation T24291. */ /* note: this is a workaround for negative matrix not working for rotation conversion, FIXME */ if (is_negative_m3(mat3)) { negate_m3(mat3_n); @@ -2220,6 +2223,12 @@ void scale_m4_fl(float R[4][4], float scale) R[3][0] = R[3][1] = R[3][2] = 0.0; } +void translate_m3(float mat[3][3], float tx, float ty) +{ + mat[2][0] += (tx * mat[0][0] + ty * mat[1][0]); + mat[2][1] += (tx * mat[0][1] + ty * mat[1][1]); +} + void translate_m4(float mat[4][4], float Tx, float Ty, float Tz) { mat[3][0] += (Tx * mat[0][0] + Ty * mat[1][0] + Tz * mat[2][0]); @@ -2227,6 +2236,18 @@ void translate_m4(float mat[4][4], float Tx, float Ty, float Tz) mat[3][2] += (Tx * mat[0][2] + Ty * mat[1][2] + Tz * mat[2][2]); } +void rotate_m3(float mat[3][3], const float angle) +{ + const float angle_cos = cosf(angle); + const float angle_sin = sinf(angle); + + for (int col = 0; col < 3; col++) { + float temp = angle_cos * mat[0][col] + angle_sin * mat[1][col]; + mat[1][col] = -angle_sin * mat[0][col] + angle_cos * mat[1][col]; + mat[0][col] = temp; + } +} + /* TODO: enum for axis? */ /** * Rotate a matrix in-place. @@ -2272,6 +2293,12 @@ void rotate_m4(float mat[4][4], const char axis, const float angle) } } +void rescale_m3(float mat[3][3], const float scale[2]) +{ + mul_v3_fl(mat[0], scale[0]); + mul_v3_fl(mat[1], scale[1]); +} + /** Scale a matrix in-place. */ void rescale_m4(float mat[4][4], const float scale[3]) { @@ -2302,6 +2329,20 @@ void transform_pivot_set_m4(float mat[4][4], const float pivot[3]) mul_m4_m4m4(mat, mat, tmat); } +void transform_pivot_set_m3(float mat[3][3], const float pivot[2]) +{ + float tmat[3][3]; + + unit_m3(tmat); + + copy_v2_v2(tmat[2], pivot); + mul_m3_m3m3(mat, tmat, mat); + + /* invert the matrix */ + negate_v2(tmat[2]); + mul_m3_m3m3(mat, mat, tmat); +} + void blend_m3_m3m3(float out[3][3], const float dst[3][3], const float src[3][3], @@ -2482,6 +2523,21 @@ bool equals_m4m4(const float mat1[4][4], const float mat2[4][4]) } /** + * Make a 3x3 matrix out of 3 transform components. + * Matrices are made in the order: `loc * rot * scale` + */ +void loc_rot_size_to_mat3(float R[3][3], + const float loc[2], + const float angle, + const float size[2]) +{ + unit_m3(R); + translate_m3(R, loc[0], loc[1]); + rotate_m3(R, angle); + rescale_m3(R, size); +} + +/** * Make a 4x4 matrix out of 3 transform components. * Matrices are made in the order: `scale * rot * loc` */ @@ -2864,7 +2920,7 @@ void svd_m4(float U[4][4], float s[4], float V[4][4], float A_[4][4]) if (ks == k) { break; } - t = (ks != p ? fabsf(e[ks]) : 0.f) + (ks != k + 1 ? fabsf(e[ks - 1]) : 0.0f); + t = (ks != p ? fabsf(e[ks]) : 0.0f) + (ks != k + 1 ? fabsf(e[ks - 1]) : 0.0f); if (fabsf(s[ks]) <= eps * t) { s[ks] = 0.0f; break; |