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authorTavian Barnes <tavianator@gmail.com>2011-07-28 22:21:53 -0600
committerTavian Barnes <tavianator@gmail.com>2011-07-28 22:21:53 -0600
commit9de8a544bc0bae9ebbc2eed10c120a7e14af441e (patch)
treec89ecbc9f7523f16fa611e2d23cb164d4efd7f5b /libdimension
parent250c28ccdef5f238677b34f21ec7fab06588a127 (diff)
downloaddimension-9de8a544bc0bae9ebbc2eed10c120a7e14af441e.tar.xz
Add leopard pigment.
Diffstat (limited to 'libdimension')
-rw-r--r--libdimension/Makefile.am1
-rw-r--r--libdimension/dimension/patterns.h6
-rw-r--r--libdimension/leopard.c48
-rw-r--r--libdimension/prtree.c2
4 files changed, 56 insertions, 1 deletions
diff --git a/libdimension/Makefile.am b/libdimension/Makefile.am
index 31db52a..fbefa40 100644
--- a/libdimension/Makefile.am
+++ b/libdimension/Makefile.am
@@ -81,6 +81,7 @@ libdimension_la_SOURCES = $(nobase_include_HEADERS) \
inline.c \
interior.c \
lambertian.c \
+ leopard.c \
light.c \
malloc.c \
map.c \
diff --git a/libdimension/dimension/patterns.h b/libdimension/dimension/patterns.h
index 5506941..a9beba9 100644
--- a/libdimension/dimension/patterns.h
+++ b/libdimension/dimension/patterns.h
@@ -37,3 +37,9 @@ dmnsn_pattern *dmnsn_new_checker_pattern(void);
* @return A gradient pattern.
*/
dmnsn_pattern *dmnsn_new_gradient_pattern(dmnsn_vector orientation);
+
+/**
+ * A leopard pattern.
+ * @return A leopard pattern.
+ */
+dmnsn_pattern *dmnsn_new_leopard_pattern(void);
diff --git a/libdimension/leopard.c b/libdimension/leopard.c
new file mode 100644
index 0000000..48986b4
--- /dev/null
+++ b/libdimension/leopard.c
@@ -0,0 +1,48 @@
+/*************************************************************************
+ * Copyright (C) 2011 Tavian Barnes <tavianator@tavianator.com> *
+ * *
+ * This file is part of The Dimension Library. *
+ * *
+ * The Dimension Library is free software; you can redistribute it and/ *
+ * or modify it under the terms of the GNU Lesser 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 Library 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 *
+ * Lesser General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Lesser General Public *
+ * License along with this program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+/**
+ * @file
+ * Leopard pattern.
+ */
+
+#include "dimension.h"
+#include <math.h>
+
+/** Leopard pattern callback. */
+static double
+dmnsn_leopard_pattern_fn(const dmnsn_pattern *leopard, dmnsn_vector v)
+{
+ double val = (sin(v.x) + sin(v.y) + sin(v.z))/3.0;
+ return val*val;
+}
+
+/** The singleton instance. */
+static dmnsn_pattern dmnsn_leopard_instance = {
+ .pattern_fn = dmnsn_leopard_pattern_fn,
+ .refcount = 1,
+};
+
+dmnsn_pattern *
+dmnsn_new_leopard_pattern(void)
+{
+ DMNSN_INCREF(&dmnsn_leopard_instance);
+ return &dmnsn_leopard_instance;
+}
diff --git a/libdimension/prtree.c b/libdimension/prtree.c
index 06cecf9..4c7a2e5 100644
--- a/libdimension/prtree.c
+++ b/libdimension/prtree.c
@@ -59,7 +59,7 @@ typedef struct dmnsn_prnode {
/** Construct an empty PR-node. */
static inline dmnsn_prnode *
-dmnsn_new_prnode()
+dmnsn_new_prnode(void)
{
dmnsn_prnode *node = dmnsn_malloc(sizeof(dmnsn_prnode));
node->bounding_box = dmnsn_zero_bounding_box();