reflection

[dosrtxon] / src / 3dgfx.c

diff --git a/src/3dgfx.c b/src/3dgfx.c
index 044ab66..64fd604 100644 (file)
--- a/src/3dgfx.c
+++ b/src/3dgfx.c
@@ -82,6 +82,7 @@ int g3d_init(void)
                fprintf(stderr, "failed to allocate G3D context\n");
                return -1;
        }
+       st->opt = G3D_CLIP_FRUSTUM;
        st->fill_mode = POLYFILL_FLAT;
 
        for(i=0; i<G3D_NUM_MATRICES; i++) {
@@ -438,17 +439,19 @@ void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
                }
 
                /* clipping */
-               for(i=0; i<6; i++) {
-                       memcpy(tmpv, v, vnum * sizeof *v);
-
-                       if(clip_frustum(v, &vnum, tmpv, vnum, i) < 0) {
-                               /* polygon completely outside of view volume. discard */
-                               vnum = 0;
-                               break;
+               if(st->opt & G3D_CLIP_FRUSTUM) {
+                       for(i=0; i<6; i++) {
+                               memcpy(tmpv, v, vnum * sizeof *v);
+
+                               if(clip_frustum(v, &vnum, tmpv, vnum, i) < 0) {
+                                       /* polygon completely outside of view volume. discard */
+                                       vnum = 0;
+                                       break;
+                               }
                        }
-               }
 
-               if(!vnum) continue;
+                       if(!vnum) continue;
+               }
 
                for(i=0; i<vnum; i++) {
                        if(v[i].w != 0.0f) {