From 5f8ce1e256462a9addbe318966a70a4bc6399bad Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Tue, 26 Jul 2011 09:20:06 -0600 Subject: Support multiple texture assignment properly. --- libdimension/object.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'libdimension/object.c') diff --git a/libdimension/object.c b/libdimension/object.c index bb7773d..7736880 100644 --- a/libdimension/object.c +++ b/libdimension/object.c @@ -34,6 +34,7 @@ dmnsn_new_object(void) object->texture = NULL; object->interior = NULL; object->trans = dmnsn_identity_matrix(); + object->intrinsic_trans = dmnsn_identity_matrix(); object->children = dmnsn_new_array(sizeof(dmnsn_object *)); object->split_children = false; object->intersection_fn = NULL; @@ -72,17 +73,26 @@ dmnsn_initialize_object(dmnsn_object *object) /* Initialize the texture */ if (!object->texture->initialized) { - object->texture->trans = dmnsn_matrix_mul(object->trans, - object->texture->trans); dmnsn_initialize_texture(object->texture); } + /* Precalculate object values */ + object->pigment_trans = dmnsn_matrix_inverse(object->trans); + object->trans = dmnsn_matrix_mul(object->trans, object->intrinsic_trans); + /* Initialize the object's children */ DMNSN_ARRAY_FOREACH (dmnsn_object **, child, object->children) { (*child)->trans = dmnsn_matrix_mul(object->trans, (*child)->trans); + bool pigment_cascaded = + (*child)->texture == NULL || (*child)->texture->pigment == NULL; + dmnsn_texture_cascade(object->texture, &(*child)->texture); dmnsn_interior_cascade(object->interior, &(*child)->interior); dmnsn_initialize_object(*child); + + if (pigment_cascaded) { + (*child)->pigment_trans = object->pigment_trans; + } } /* Initialization callback */ @@ -90,7 +100,7 @@ dmnsn_initialize_object(dmnsn_object *object) object->initialize_fn(object); } - /* Precalculate object values */ + /* Precalculate more object values */ object->bounding_box = dmnsn_transform_bounding_box(object->trans, object->bounding_box); object->trans_inv = dmnsn_matrix_inverse(object->trans); -- cgit v1.2.3