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Reverse direction of sun vector, so object normals can be more normal.

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curt 1997-11-15 18:15:39 +00:00
parent 273bd9bc6e
commit 91aef7cb1c
1 changed files with 7 additions and 2 deletions
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9
Time/sunpos.c
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@ -285,6 +285,8 @@ void fgUpdateSunPos(struct fgCartesianPoint scenery_center) {
t->sun_vec[0] = t->fg_sunpos.x - scenery_center.x;
t->sun_vec[1] = t->fg_sunpos.y - scenery_center.y;
t->sun_vec[2] = t->fg_sunpos.z - scenery_center.z;
MAT3_SCALE_VEC(t->sun_vec, t->sun_vec, -1.0);
/* make this a directional light source only */
t->sun_vec[3] = 0.0;
@ -303,9 +305,12 @@ void fgUpdateSunPos(struct fgCartesianPoint scenery_center) {
/* $Log$
/* Revision 1.11 1997/10/28 21:07:21 curt
/* Changed GLUT/ -> Main/
/* Revision 1.12 1997/11/15 18:15:39 curt
/* Reverse direction of sun vector, so object normals can be more normal.
/*
* Revision 1.11 1997/10/28 21:07:21 curt
* Changed GLUT/ -> Main/
*
* Revision 1.10 1997/09/13 02:00:09 curt
* Mostly working on stars and generating sidereal time for accurate star
* placement.