X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosrtxon;a=blobdiff_plain;f=src%2F3dgfx.c;fp=src%2F3dgfx.c;h=64fd604cdc513fc4031f4bd1b971906764810c7d;hp=044ab6602897259700f0a3a1208100528831d58d;hb=584c6161bb6f3f548d5e27bb7d6895a81375881e;hpb=19f635d551abc4596879c308a7a1be21009b33a8

diff --git a/src/3dgfx.c b/src/3dgfx.c
index 044ab66..64fd604 100644
--- 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) {