diff options
Diffstat (limited to 'src/mesa/swrast')
| -rw-r--r-- | src/mesa/swrast/s_fragprog.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c index 698925cdba3..dbfc1b8c0cc 100644 --- a/src/mesa/swrast/s_fragprog.c +++ b/src/mesa/swrast/s_fragprog.c @@ -113,6 +113,10 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine, /* Setup pointer to input attributes */ machine->Attribs = span->array->attribs; + + /* Store front/back facing value in register FOGC.Y */ + machine->Attribs[FRAG_ATTRIB_FOGC][col][1] = (GLfloat) ctx->_Facing; + machine->CurElement = col; /* init condition codes */ |