diff options
Diffstat (limited to 'intern/cycles/util/util_transform.h')
| -rw-r--r-- | intern/cycles/util/util_transform.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/intern/cycles/util/util_transform.h b/intern/cycles/util/util_transform.h index 4bf3759dd75..07db52f6392 100644 --- a/intern/cycles/util/util_transform.h +++ b/intern/cycles/util/util_transform.h @@ -209,6 +209,13 @@ __device_inline float3 transform_get_column(const Transform *t, int column) return make_float3(t->x[column], t->y[column], t->z[column]); } +__device_inline void transform_set_column(Transform *t, int column, float3 value) +{ + t->x[column] = value.x; + t->y[column] = value.y; + t->z[column] = value.z; +} + Transform transform_inverse(const Transform& a); __device_inline bool transform_uniform_scale(const Transform& tfm, float& scale) @@ -244,6 +251,17 @@ __device_inline bool transform_negative_scale(const Transform& tfm) return (dot(cross(c0, c1), c2) < 0.0f); } +__device_inline Transform transform_clear_scale(const Transform& tfm) +{ + Transform ntfm = tfm; + + transform_set_column(&ntfm, 0, normalize(transform_get_column(&ntfm, 0))); + transform_set_column(&ntfm, 1, normalize(transform_get_column(&ntfm, 1))); + transform_set_column(&ntfm, 2, normalize(transform_get_column(&ntfm, 2))); + + return ntfm; +} + #endif CCL_NAMESPACE_END |