From: Andreas Eversberg <jolly@eversberg.eu>
Date: Sat, 14 Apr 2018 12:22:53 +0000 (+0200)
Subject: OVR: Render sky and ground correctly on VR
X-Git-Url: http://git.eversberg.eu/gitweb.cgi?p=mercenary-reloaded.git;a=commitdiff_plain;h=78d699f1ba5e77c593a451f75f98140a503c9eda

OVR: Render sky and ground correctly on VR
---

diff --git a/src/mercenary/render.c b/src/mercenary/render.c
index 8f0b140..3b2bf11 100644
--- a/src/mercenary/render.c
+++ b/src/mercenary/render.c
@@ -1659,12 +1659,25 @@ void render_one_item(render_item_t *render_item, int vr)
 #endif
 		/* get color */
 		opengl_render_color(render_item->u.sky.red, render_item->u.sky.green, render_item->u.sky.blue, 1.0);
-		/* create plane to fill view */
-		x[0] = x[1] = y[1] = y[2] = -1000000;
-		x[2] = x[3] = y[0] = y[3] = 1000000;
-		z[0] = z[1] = z[2] = z[3] = 10;
-		/* render */
-		opengl_render_polygon(x, y, z, 4, 0); /* no culling, because sky (background) is always visible! */
+		/* create box to fill view */
+		x[0] = x[1] = y[1] = y[2] = -1000;
+		x[2] = x[3] = y[0] = y[3] = 1000;
+		z[0] = z[1] = z[2] = z[3] = 1000;
+		opengl_render_polygon_and_line(x, y, z, 4);
+		z[0] = z[1] = z[2] = z[3] = -1000;
+		opengl_render_polygon_and_line(x, y, z, 4);
+		x[0] = x[1] = z[1] = z[2] = -1000;
+		x[2] = x[3] = z[0] = z[3] = 1000;
+		y[0] = y[1] = y[2] = y[3] = 1000;
+		opengl_render_polygon_and_line(x, y, z, 4);
+		y[0] = y[1] = y[2] = y[3] = -1000;
+		opengl_render_polygon_and_line(x, y, z, 4);
+		y[0] = y[1] = z[1] = z[2] = -1000;
+		y[2] = y[3] = z[0] = z[3] = 1000;
+		x[0] = x[1] = x[2] = x[3] = 1000;
+		opengl_render_polygon_and_line(x, y, z, 4);
+		x[0] = x[1] = x[2] = x[3] = -1000;
+		opengl_render_polygon_and_line(x, y, z, 4);
 		break;
 	}
 	case RENDER_ITEM_GROUND:
@@ -1680,9 +1693,9 @@ void render_one_item(render_item_t *render_item, int vr)
 		opengl_render_color(render_item->u.ground.red, render_item->u.ground.green, render_item->u.ground.blue, 1.0);
 		yaw = 0.0; /* no need to rotate x-z plane, we don't want look at a corner of the 'ground-square' */
 		/* create huge square */
-		x[0] = x[1] = z[1] = z[2] = -1000000;
-		x[2] = x[3] = z[0] = z[3] = 1000000;
-		y[0] = y[1] = y[2] = y[3] = -10;
+		x[0] = x[1] = z[1] = z[2] = -1000000000;
+		x[2] = x[3] = z[0] = z[3] = 1000000000;
+		y[0] = y[1] = y[2] = y[3] = -1000;
 		/* rotate vertex */
 		for (i = 0; i < 4; i++)
 			rotate_coordinate(roll, pitch, yaw, &x[i], &y[i], &z[i]);