From b6f1834ac17a11c38091ae0c60e53f8f6320b019 Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Sat, 6 Nov 2010 02:08:32 -0400 Subject: Factor out transformation code from object callbacks. --- libdimension/plane.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'libdimension/plane.c') diff --git a/libdimension/plane.c b/libdimension/plane.c index 93d5173..be3d91a 100644 --- a/libdimension/plane.c +++ b/libdimension/plane.c @@ -58,14 +58,13 @@ dmnsn_plane_intersection_fn(const dmnsn_object *plane, dmnsn_line line, { dmnsn_vector *normal = plane->ptr; - dmnsn_line line_trans = dmnsn_transform_line(plane->trans_inv, line); - double den = dmnsn_vector_dot(line_trans.n, *normal); + double den = dmnsn_vector_dot(line.n, *normal); if (den != 0.0) { - double t = -dmnsn_vector_dot(line_trans.x0, *normal)/den; + double t = -dmnsn_vector_dot(line.x0, *normal)/den; if (t >= 0.0) { intersection->ray = line; intersection->t = t; - intersection->normal = dmnsn_transform_normal(plane->trans, *normal); + intersection->normal = *normal; intersection->texture = plane->texture; intersection->interior = plane->interior; return true; -- cgit v1.2.3