annotate libs/vmath/basis_c.c @ 35:23e5d274b2a2
added options panel, also added the xib files to the repository as they're needed
| author |
John Tsiombikas <nuclear@member.fsf.org> |
| date |
Fri, 09 Sep 2011 10:03:42 +0300 |
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| children |
ff055bff6a15 |
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1 #include "basis.h"
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2 #include "matrix.h"
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3
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4 void basis_matrix(mat4_t res, vec3_t i, vec3_t j, vec3_t k)
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5 {
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6 m4_identity(res);
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7 m4_set_column(res, v4_cons(i.x, i.y, i.z, 1.0), 0);
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8 m4_set_column(res, v4_cons(j.x, j.y, j.z, 1.0), 1);
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9 m4_set_column(res, v4_cons(k.x, k.y, k.z, 1.0), 2);
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10 }
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11
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12 void basis_matrix_dir(mat4_t res, vec3_t dir)
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13 {
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14 vec3_t k = v3_normalize(dir);
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15 vec3_t j = {0, 1, 0};
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16 vec3_t i = v3_cross(j, k);
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17 j = v3_cross(k, i);
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18 basis_matrix(res, i, j, k);
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19 }
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