Improve CSG and light handling.

- Lights can be inside CSG objects
- Lights can be modified by transformations
- CSG objects can contain only one object

1 files changed, 85 insertions, 0 deletions

diff --git a/tests/dimension/csg.sh b/tests/dimension/csg.sh
new file mode 100755
index 0000000..c27e448
--- /dev/null
+++ b/tests/dimension/csg.sh
@@ -0,0 +1,85 @@
+#!/bin/sh
+
+#########################################################################
+# Copyright (C) 2010 Tavian Barnes <tavianator@gmail.com>               #
+#                                                                       #
+# This file is part of The Dimension Test Suite.                        #
+#                                                                       #
+# The Dimension Test Suite is free software; you can redistribute it    #
+# and/or modify it under the terms of the GNU General Public License as #
+# published by the Free Software Foundation; either version 3 of the    #
+# License, or (at your option) any later version.                       #
+#                                                                       #
+# The Dimension Test Suite is distributed in the hope that it will be   #
+# useful, but WITHOUT ANY WARRANTY; without even the implied warranty   #
+# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  #
+# General Public License for more details.                              #
+#                                                                       #
+# You should have received a copy of the GNU General Public License     #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>. #
+#########################################################################
+
+csg=$(${top_builddir}/dimension/dimension --parse ${srcdir}/csg.pov)
+csg_exp="$(echo -n \
+'((camera
+    perspective
+    (location (vector (integer 0) (integer 0) (integer -4)
+                      (integer 0) (integer 0)))
+    (right (vector (float 1.6) (float 0) (float 0) (float 0) (float 0)))
+    (look_at (vector (integer 0) (integer 0) (integer 0)
+                     (integer 0) (integer 0))))
+  (background
+    (vector (integer 0) (float 0.1) (float 0.2) (float 0.1) (integer 0)))
+  (union
+    (array
+      (sphere
+        (vector (float -1.5) (float 0) (float 0) (float 0) (float 0))
+        (integer 1)
+        (object-modifiers
+          (pigment
+            (vector (integer 1) (integer 0) (integer 0)
+                    (integer 0) (integer 0))))))
+    object-modifiers)
+  (union
+    (array
+      (light_source
+        (vector (integer 0) (integer 20) (integer 0) (integer 0) (integer 0))
+        (vector (float 0.5) (float 0.5) (float 0.5) (integer 0) (integer 0))
+        object-modifiers))
+    object-modifiers)
+  (difference
+    (array
+      (light_source
+        (vector (integer -15) (integer 0) (integer 0) (integer 0) (integer 0))
+        (vector (float 0.5) (float 0.5) (float 0.5) (integer 0) (integer 0))
+        object-modifiers)
+      (sphere
+        (vector (float 1.5) (float -20) (float 0) (float 0) (float 0))
+        (integer 1)
+        (object-modifiers
+          (pigment
+            (vector (integer 0) (integer 1) (integer 0)
+                    (integer 0) (integer 0)))))
+      (light_source
+        (vector (integer 15) (integer 0) (integer 0) (integer 0) (integer 0))
+        (vector (float 0.5) (float 0.5) (float 0.5) (integer 0) (integer 0))
+        object-modifiers)
+      (box
+        (vector (float 0.7) (float -20.8) (float -0.8) (integer 0) (integer 0))
+        (vector (float 2.3) (float -19.2) (float 0.8) (integer 0) (integer 0))
+        (object-modifiers
+          (pigment
+            (vector (integer 0) (integer 0) (integer 1)
+                    (integer 0) (integer 0))))))
+    (object-modifiers
+      (translate (vector (integer 0) (integer 20) (integer 0)
+                         (integer 0) (integer 0))))))' \
+| tr '\n' ' ' | sed -r 's/[[:space:]]+/ /g')"
+
+if [ "$csg" != "$csg_exp" ]; then
+  echo "csg.pov parsed as \"$csg\"" >&2
+  echo "      -- expected \"$csg_exp\"" >&2
+  exit 1
+fi
+
+${top_builddir}/dimension/dimension -w768 -h480 -o csg.png ${srcdir}/csg.pov