Cleanup: Migrate all shader nodes to c++

This will be useful in the future to use the new socket builder API

Aditional changes:

- Declare variables where initialized
- Do not use relative includes

Differential Revision: https://developer.blender.org/D13465

1 files changed, 75 insertions, 0 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_layer_weight.cc b/source/blender/nodes/shader/nodes/node_shader_layer_weight.cc
new file mode 100644
index 00000000000..c479f9df7d1
--- /dev/null
+++ b/source/blender/nodes/shader/nodes/node_shader_layer_weight.cc
@@ -0,0 +1,75 @@
+/*
+ * 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.
+ */
+
+#include "node_shader_util.hh"
+
+/* **************** Layer Weight ******************** */
+
+static bNodeSocketTemplate sh_node_layer_weight_in[] = {
+    {SOCK_FLOAT, N_("Blend"), 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
+    {SOCK_VECTOR, N_("Normal"), 0.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f, PROP_NONE, SOCK_HIDE_VALUE},
+    {-1, ""},
+};
+
+static bNodeSocketTemplate sh_node_layer_weight_out[] = {
+    {SOCK_FLOAT, N_("Fresnel"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
+    {SOCK_FLOAT, N_("Facing"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
+    {-1, ""},
+};
+
+static int node_shader_gpu_layer_weight(GPUMaterial *mat,
+                                        bNode *node,
+                                        bNodeExecData *UNUSED(execdata),
+                                        GPUNodeStack *in,
+                                        GPUNodeStack *out)
+{
+  if (!in[1].link) {
+    in[1].link = GPU_builtin(GPU_VIEW_NORMAL);
+  }
+  else {
+    GPU_link(
+        mat, "direction_transform_m4v3", in[1].link, GPU_builtin(GPU_VIEW_MATRIX), &in[1].link);
+  }
+
+  return GPU_stack_link(mat, node, "node_layer_weight", in, out, GPU_builtin(GPU_VIEW_POSITION));
+}
+
+static void node_shader_exec_layer_weight(void *UNUSED(data),
+                                          int UNUSED(thread),
+                                          bNode *UNUSED(node),
+                                          bNodeExecData *UNUSED(execdata),
+                                          bNodeStack **UNUSED(in),
+                                          bNodeStack **UNUSED(out))
+{
+}
+
+/* node type definition */
+void register_node_type_sh_layer_weight(void)
+{
+  static bNodeType ntype;
+
+  sh_node_type_base(&ntype, SH_NODE_LAYER_WEIGHT, "Layer Weight", NODE_CLASS_INPUT, 0);
+  node_type_socket_templates(&ntype, sh_node_layer_weight_in, sh_node_layer_weight_out);
+  node_type_init(&ntype, nullptr);
+  node_type_storage(&ntype, "", nullptr, nullptr);
+  node_type_gpu(&ntype, node_shader_gpu_layer_weight);
+  node_type_exec(&ntype, nullptr, nullptr, node_shader_exec_layer_weight);
+
+  nodeRegisterType(&ntype);
+}