X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Fpolytest.c;h=dfca5ef2a5978aeb3e52d1e3287ccdd5bc290525;hp=8d81262196a5cea3b542f4105b7cce3388282ea9;hb=45f6f46fe758d15aafccdb69ae837fc7d84ee466;hpb=100da5f0dbf2d9edbc65d6308f9481ca2e4f55df

diff --git a/src/polytest.c b/src/polytest.c
index 8d81262..dfca5ef 100644
--- a/src/polytest.c
+++ b/src/polytest.c
@@ -102,6 +102,9 @@ static void update(void)
 
 static void draw(void)
 {
+	float vdir[3];
+	float mat[16];
+
 	update();
 
 	memset(fb_pixels, 0, fb_width * fb_height * 2);
@@ -116,6 +119,14 @@ static void draw(void)
 		g3d_rotate(cam_theta, 0, 1, 0);
 	}
 
+	/* calc world-space view direction */
+	g3d_get_matrix(G3D_MODELVIEW, mat);
+	/* transform (0, 0, -1) with transpose(mat3x3) */
+	vdir[0] = -mat[2];
+	vdir[1] = -mat[6];
+	vdir[2] = -mat[10];
+
+
 	g3d_light_pos(0, -10, 10, 20);
 
 	zsort_mesh(&torus);
@@ -123,8 +134,8 @@ static void draw(void)
 	g3d_mtl_diffuse(0.4, 0.7, 1.0);
 	g3d_set_texture(tex.width, tex.height, tex.pixels);
 
-	draw_mesh(&torus);
-	/*draw_bsp(&torus_bsp);*/
+	/*draw_mesh(&torus);*/
+	draw_bsp(&torus_bsp, vdir[0], vdir[1], vdir[2]);
 
 	/*draw_mesh(&cube);*/
 	swap_buffers(fb_pixels);