blender
/
blender
136
407
Fork 589
Code Issues 6.3k Pull Requests 779 Projects 19 Wiki Activity

Math Lib: add mul_v3_mat3_m4v3

This commit is contained in:
Campbell Barton 2015-04-27 21:50:38 +10:00
parent 3f80accfb3
commit 9dadc8f599
2 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
source/blender/blenlib/BLI_math_matrix.h
View File

@ -106,6 +106,7 @@ void mul_v2_m4v3(float r[2], float M[4][4], const float v[3]);
void mul_v2_m2v2(float r[2], float M[2][2], const float v[2]);
void mul_m2v2(float M[2][2], float v[2]);
void mul_mat3_m4_v3(float M[4][4], float r[3]);
void mul_v3_mat3_m4v3(float r[3], float M[4][4], const float v[3]);
void mul_m4_v4(float M[4][4], float r[4]);
void mul_v4_m4v4(float r[4], float M[4][4], const float v[4]);
void mul_project_m4_v3(float M[4][4], float vec[3]);

10
source/blender/blenlib/intern/math_matrix.c
View File

@ -504,6 +504,16 @@ void mul_mat3_m4_v3(float mat[4][4], float vec[3])
vec[2] = x * mat[0][2] + y * mat[1][2] + mat[2][2] * vec[2];
}
void mul_v3_mat3_m4v3(float r[3], float mat[4][4], const float vec[3])
{
const float x = vec[0];
const float y = vec[1];
r[0] = x * mat[0][0] + y * mat[1][0] + mat[2][0] * vec[2];
r[1] = x * mat[0][1] + y * mat[1][1] + mat[2][1] * vec[2];
r[2] = x * mat[0][2] + y * mat[1][2] + mat[2][2] * vec[2];
}
void mul_project_m4_v3(float mat[4][4], float vec[3])
{
const float w = mul_project_m4_v3_zfac(mat, vec);