medfall

commit 296d2ef944256a47e8e89ea21c8c9b6077aa4230
parent 60e18c07183d7a21bef9f8092875f14bf88e25eb
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Sat Oct 15 00:08:53 +0300

Remove dead code

Diffstat:
gpubtt.cc
 | 
41
-----------------------------------------
1 file changed, 0 insertions(+), 41 deletions(-)
diff --git a/gpubtt.cc b/gpubtt.cc
@@ -44,47 +44,6 @@ static void gpubtt_build(
 	}
 }
 
-static float angle( glm::vec3 a, glm::vec3 b ) {
-	const glm::vec3 d = b - a;
-
-	const float dist_xy = glm::length( glm::vec2( d.x, d.y ) );
-
-	return d.z / dist_xy;
-}
-
-static void compute_horizons(
-	MemoryArena * arena,
-	const Heightmap * hm, float * horizons,
-	glm::ivec2 start, glm::ivec2 step
-) {
-	MEMARENA_SCOPED_CHECKPOINT( arena );
-
-	const u32 max_hull_size = 2 * max( hm->width, hm->height );
-
-	glm::vec3 * hull = memarena_push_many( arena, glm::vec3, max_hull_size );
-	u32 hull_size = 1;
-
-	hull[ 0 ] = hm->point( start.x, start.y );
-
-	start += step;
-
-	while( ( u32 ) start.x < hm->width && ( u32 ) start.y < hm->height && start.x >= 0 && start.y >= 0 ) {
-		const glm::vec3 p = hm->point( start.x, start.y );
-
-		while( hull_size > 1 && angle( p, hull[ hull_size - 1 ] ) < angle( hull[ hull_size - 1 ], hull[ hull_size - 2 ] ) ) {
-			hull_size--;
-		}
-
-		const float horizon = max( 0.0f, angle( p, hull[ hull_size - 1 ] ) );
-		horizons[ start.y * hm->width + start.x ] = horizon;
-
-		hull[ hull_size ] = p;
-		hull_size++;
-
-		start += step;
-	}
-}
-
 void gpubtt_init(
 	MemoryArena * arena, GPUBTT * gpubtt, BTTs btts,
 	const OffsetHeightmap * ohm, const v3 * normals, const float * horizons,