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| author | Tavian Barnes <tavianator@gmail.com> | 2010-02-25 22:03:11 -0500 |
|---|---|---|
| committer | Tavian Barnes <tavianator@gmail.com> | 2010-02-25 22:03:11 -0500 |
| commit | 40b180db2833e4e6ef835a463ca15ff865ce0d18 (patch) | |
| tree | ebb3f808374d653cd150852e252e68b9addca8d0 /libdimension/diffuse.c | |
| parent | b27ad82573bc70d84bc4213ba00771f4746b36bc (diff) | |
| download | dimension-40b180db2833e4e6ef835a463ca15ff865ce0d18.tar.xz | |
Point the normal vectors away from the object.
Diffstat (limited to 'libdimension/diffuse.c')
| -rw-r--r-- | libdimension/diffuse.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libdimension/diffuse.c b/libdimension/diffuse.c index 75d4c52..910e23f 100644 --- a/libdimension/diffuse.c +++ b/libdimension/diffuse.c @@ -32,7 +32,7 @@ dmnsn_diffuse_finish_fn(const dmnsn_finish *finish, dmnsn_vector ray, dmnsn_vector normal) { double *diffuse = finish->ptr; - double diffuse_factor = (*diffuse)*dmnsn_vector_dot(ray, normal); + double diffuse_factor = fabs((*diffuse)*dmnsn_vector_dot(ray, normal)); dmnsn_color ret = dmnsn_color_mul(diffuse_factor, dmnsn_color_illuminate(light, color)); ret.filter = 0.0; |