foo

[gbajam22] / src / xgl.c

diff --git a/src/xgl.c b/src/xgl.c
index 48db220..c76991b 100644 (file)
--- a/src/xgl.c
+++ b/src/xgl.c
@@ -191,12 +191,12 @@ static void xform_norm(struct xvertex *out, const struct xvertex *in, const int3
 /* d = 1.0 / tan(fov/2) */
 #define PROJ_D 0x20000
 /* near Z = 0.5 */
-#define NEAR_Z 0x10000
+#define NEAR_Z 0x30000
 
 void xgl_draw(int prim, const struct xvertex *varr, int vcount)
 {
-       int i, cidx;
-       struct xvertex xv[4];
+       int i, cidx, clipnum;
+       struct xvertex xv[4], xvclip[8];
        struct pvertex pv[4];
        int32_t ndotl;
 
@@ -233,15 +233,15 @@ void xgl_draw(int prim, const struct xvertex *varr, int vcount)
                }
 
                /* clip against near plane */
+               xgl_clip_near(xvclip, &clipnum, xv, prim);
 
-
-               for(i=0; i<prim; i++) {
+               for(i=0; i<clipnum; i++) {
                        /* viewport */
-                       pv[i].x = (((xv[i].x + 0x100) >> 1) * vp[2]) + (vp[0] << 8);
-                       pv[i].y = (((0x100 - xv[i].y) >> 1) * vp[3]) + (vp[1] << 8);
+                       pv[i].x = (((xvclip[i].x + 0x100) >> 1) * vp[2]) + (vp[0] << 8);
+                       pv[i].y = (((0x100 - xvclip[i].y) >> 1) * vp[3]) + (vp[1] << 8);
                }
 
-               polyfill_flat(pv, prim, cidx);
+               polyfill_flat(pv, clipnum, cidx);
 skip_poly:
                varr += prim;
                vcount -= prim;