1 files changed, 85 insertions, 0 deletions
diff --git a/source/blender/nodes/shader/nodes/node_shader_volume_principled.c b/source/blender/nodes/shader/nodes/node_shader_volume_principled.c
new file mode 100644
index 00000000000..e85fec1ec9d
--- /dev/null
+++ b/source/blender/nodes/shader/nodes/node_shader_volume_principled.c
@@ -0,0 +1,85 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include "../node_shader_util.h"
+
+/* **************** OUTPUT ******************** */
+
+static bNodeSocketTemplate sh_node_volume_principled_in[] = {
+	{	SOCK_RGBA, 1, N_("Color"),					0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 1.0f},
+	{	SOCK_STRING, 1, N_("Color Attribute"),		0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
+	{	SOCK_FLOAT, 1, N_("Density"),				1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1000.0f},
+	{	SOCK_STRING, 1, N_("Density Attribute"),	1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
+	{	SOCK_FLOAT, 1, N_("Anisotropy"),			0.0f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_RGBA, 1, N_("Absorption Color"),		0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
+	{	SOCK_FLOAT, 1, N_("Emission Strength"),		0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1000.0f},
+	{	SOCK_RGBA, 1, N_("Emission Color"),			1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f},
+	{	SOCK_FLOAT, 1, N_("Blackbody Intensity"),	0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_RGBA, 1, N_("Blackbody Tint"),			1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f},
+	{	SOCK_FLOAT, 1, N_("Temperature"),			1000.0f, 0.0f, 0.0f, 0.0f, 0.0f, 6500.0f},
+	{	SOCK_STRING, 1, N_("Temperature Attribute"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
+	{	-1, 0, ""	}
+};
+
+static bNodeSocketTemplate sh_node_volume_principled_out[] = {
+	{	SOCK_SHADER, 0, N_("Volume")},
+	{	-1, 0, ""	}
+};
+
+static void node_shader_init_volume_principled(bNodeTree *UNUSED(ntree), bNode *node)
+{
+	for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+		if (STREQ(sock->name, "Density Attribute")) {
+			strcpy(((bNodeSocketValueString *)sock->default_value)->value, "density");
+		}
+		else if (STREQ(sock->name, "Temperature Attribute")) {
+			strcpy(((bNodeSocketValueString *)sock->default_value)->value, "temperature");
+		}
+	}
+}
+
+static int node_shader_gpu_volume_principled(GPUMaterial *UNUSED(mat), bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), GPUNodeStack *UNUSED(in), GPUNodeStack *UNUSED(out))
+{
+	return false;
+}
+
+/* node type definition */
+void register_node_type_sh_volume_principled(void)
+{
+	static bNodeType ntype;
+
+	sh_node_type_base(&ntype, SH_NODE_VOLUME_PRINCIPLED, "Principled Volume", NODE_CLASS_SHADER, 0);
+	node_type_compatibility(&ntype, NODE_NEW_SHADING);
+	node_type_socket_templates(&ntype, sh_node_volume_principled_in, sh_node_volume_principled_out);
+	node_type_size_preset(&ntype, NODE_SIZE_LARGE);
+	node_type_init(&ntype, node_shader_init_volume_principled);
+	node_type_storage(&ntype, "", NULL, NULL);
+	node_type_gpu(&ntype, node_shader_gpu_volume_principled);
+
+	nodeRegisterType(&ntype);
+}
+