picking and brute force ray intersections

[retroray] / src / gaw / gaw_sw.c

diff --git a/src/gaw/gaw_sw.c b/src/gaw/gaw_sw.c
index de96cab..5e4619c 100644 (file)
--- a/src/gaw/gaw_sw.c
+++ b/src/gaw/gaw_sw.c
@@ -1,5 +1,5 @@
 /*
-Deep Runner - 6dof shooter game for the SGI O2.
+RetroRay - integrated standalone vintage modeller/renderer
 Copyright (C) 2023  John Tsiombikas <nuclear@mutantstargoat.com>
 
 This program is free software: you can redistribute it and/or modify
@@ -15,6 +15,7 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
+#include <stdio.h>
 #include <string.h>
 #include "gaw.h"
 #include "gawswtnl.h"
@@ -319,8 +320,7 @@ void gaw_swtnl_drawprim(int prim, struct vertex *v, int vnum)
        for(i=0; i<vnum; i++) {
                /* viewport transformation */
                v[i].x = (v[i].x * 0.5f + 0.5f) * (float)ST->vport[2] + ST->vport[0];
-               v[i].y = (v[i].y * 0.5f + 0.5f) * (float)ST->vport[3] + ST->vport[1];
-               v[i].y = pfill_fb.height - v[i].y - 1;
+               v[i].y = (v[i].y * -0.5f + 0.5f) * (float)ST->vport[3] + ST->vport[1] - 1;
 
                /* convert pos to 24.8 fixed point */
                pv[i].x = cround64(v[i].x * 256.0f);
@@ -362,6 +362,7 @@ void gaw_swtnl_drawprim(int prim, struct vertex *v, int vnum)
                break;
 
        case GAW_LINES:
+               draw_line(pv);
                break;
 
        default: