1 files changed, 76 insertions, 0 deletions
diff --git a/source/blender/nodes/shader/nodes/node_shader_squeeze.cc b/source/blender/nodes/shader/nodes/node_shader_squeeze.cc
new file mode 100644
index 00000000000..9b32a675404
--- /dev/null
+++ b/source/blender/nodes/shader/nodes/node_shader_squeeze.cc
@@ -0,0 +1,76 @@
+/*
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2005 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup shdnodes
+ */
+
+#include "node_shader_util.h"
+
+namespace blender::nodes::node_shader_squeeze_cc {
+
+/* **************** VALUE SQUEEZE ******************** */
+static bNodeSocketTemplate sh_node_squeeze_in[] = {
+    {SOCK_FLOAT, N_("Value"), 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f, PROP_NONE},
+    {SOCK_FLOAT, N_("Width"), 1.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f, PROP_NONE},
+    {SOCK_FLOAT, N_("Center"), 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f, PROP_NONE},
+    {-1, ""}};
+
+static bNodeSocketTemplate sh_node_squeeze_out[] = {{SOCK_FLOAT, N_("Value")}, {-1, ""}};
+
+static void node_shader_exec_squeeze(void *UNUSED(data),
+                                     int UNUSED(thread),
+                                     bNode *UNUSED(node),
+                                     bNodeExecData *UNUSED(execdata),
+                                     bNodeStack **in,
+                                     bNodeStack **out)
+{
+  float vec[3];
+
+  nodestack_get_vec(vec, SOCK_FLOAT, in[0]);
+  nodestack_get_vec(vec + 1, SOCK_FLOAT, in[1]);
+  nodestack_get_vec(vec + 2, SOCK_FLOAT, in[2]);
+
+  out[0]->vec[0] = 1.0f / (1.0f + powf(M_E, -((vec[0] - vec[2]) * vec[1])));
+}
+
+static int gpu_shader_squeeze(GPUMaterial *mat,
+                              bNode *node,
+                              bNodeExecData *UNUSED(execdata),
+                              GPUNodeStack *in,
+                              GPUNodeStack *out)
+{
+  return GPU_stack_link(mat, node, "squeeze", in, out);
+}
+
+}  // namespace blender::nodes::node_shader_squeeze_cc
+
+void register_node_type_sh_squeeze()
+{
+  namespace file_ns = blender::nodes::node_shader_squeeze_cc;
+
+  static bNodeType ntype;
+
+  sh_node_type_base(&ntype, SH_NODE_SQUEEZE, "Squeeze Value", NODE_CLASS_CONVERTER, 0);
+  node_type_socket_templates(&ntype, file_ns::sh_node_squeeze_in, file_ns::sh_node_squeeze_out);
+  node_type_exec(&ntype, nullptr, nullptr, file_ns::node_shader_exec_squeeze);
+  node_type_gpu(&ntype, file_ns::gpu_shader_squeeze);
+
+  nodeRegisterType(&ntype);
+}