diff options
| -rw-r--r-- | src/mesa/swrast/s_fragprog.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c index 882fec29ef..09493873aa 100644 --- a/src/mesa/swrast/s_fragprog.c +++ b/src/mesa/swrast/s_fragprog.c @@ -113,8 +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; + if (ctx->Shader.CurrentProgram) { + /* Store front/back facing value in register FOGC.Y */ + machine->Attribs[FRAG_ATTRIB_FOGC][col][1] = (GLfloat) ctx->_Facing; + } machine->CurElement = col; |