Merge branch 'master' into blender2.8

1 files changed, 132 insertions, 0 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_bsdf_hair_principled.c b/source/blender/nodes/shader/nodes/node_shader_bsdf_hair_principled.c
new file mode 100644
index 00000000000..5fff2548ba1
--- /dev/null
+++ b/source/blender/nodes/shader/nodes/node_shader_bsdf_hair_principled.c
@@ -0,0 +1,132 @@
+/*
+ * ***** 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) 2018 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Lukas Stockner, L. E. Segovia
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include "../node_shader_util.h"
+
+/* **************** OUTPUT ******************** */
+
+/* Color, melanin and absorption coefficient default to approximately same brownish hair. */
+static bNodeSocketTemplate sh_node_bsdf_hair_principled_in[] = {
+	{	SOCK_RGBA,		1, N_("Color"),						0.017513f, 0.005763f, 0.002059f, 1.0f, 0.0f, 1.0f},
+	{	SOCK_FLOAT,		1, N_("Melanin"),					0.8f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_FLOAT,		1, N_("Melanin Redness"),			1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_RGBA,		1, N_("Tint"),						1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f},
+	{	SOCK_VECTOR,	1, N_("Absorption Coefficient"),	0.245531f, 0.52f, 1.365f, 0.0f, 0.0f, 1000.0f},
+	{	SOCK_FLOAT,		1, N_("Roughness"),					0.3f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_FLOAT,		1, N_("Radial Roughness"),			0.3f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_FLOAT,		1, N_("Coat"),						0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_FLOAT,		1, N_("IOR"),						1.55f, 0.0f, 0.0f, 0.0f, 0.0f, 1000.0f},
+	{	SOCK_FLOAT,		1, N_("Offset"),					2.f*((float)M_PI)/180.f, 0.0f, 0.0f, 0.0f, -M_PI_2, M_PI_2, PROP_ANGLE},
+	{	SOCK_FLOAT, 	1, N_("Random Color"),				0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_FLOAT, 	1, N_("Random Roughness"),			0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
+	{	SOCK_FLOAT,		1, N_("Random"),					0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_NONE, SOCK_HIDE_VALUE},
+	{	-1, 0, ""	},
+};
+
+static bNodeSocketTemplate sh_node_bsdf_hair_principled_out[] = {
+	{	SOCK_SHADER, 0, N_("BSDF")},
+	{	-1, 0, ""	}
+};
+
+/* Initialize the custom Parametrization property to Color. */
+static void node_shader_init_hair_principled(bNodeTree *UNUSED(ntree), bNode *node)
+{
+	node->custom1 = SHD_PRINCIPLED_HAIR_REFLECTANCE;
+}
+
+/* Triggers (in)visibility of some sockets when changing Parametrization. */
+static void node_shader_update_hair_principled(bNodeTree *UNUSED(ntree), bNode *node)
+{
+	bNodeSocket *sock;
+	int parametrization = node->custom1;
+
+	for (sock = node->inputs.first; sock; sock = sock->next) {
+		if (STREQ(sock->name, "Color")) {
+			if (parametrization == SHD_PRINCIPLED_HAIR_REFLECTANCE) {
+				sock->flag &= ~SOCK_UNAVAIL;
+			}
+			else {
+				sock->flag |= SOCK_UNAVAIL;
+			}
+		}
+		else if (STREQ(sock->name, "Melanin")) {
+			if (parametrization == SHD_PRINCIPLED_HAIR_PIGMENT_CONCENTRATION) {
+				sock->flag &= ~SOCK_UNAVAIL;
+			}
+			else {
+				sock->flag |= SOCK_UNAVAIL;
+			}
+		}
+		else if (STREQ(sock->name, "Melanin Redness")) {
+			if (parametrization == SHD_PRINCIPLED_HAIR_PIGMENT_CONCENTRATION) {
+				sock->flag &= ~SOCK_UNAVAIL;
+			}
+			else {
+				sock->flag |= SOCK_UNAVAIL;
+			}
+		}
+		else if (STREQ(sock->name, "Tint")) {
+			if (parametrization == SHD_PRINCIPLED_HAIR_PIGMENT_CONCENTRATION) {
+				sock->flag &= ~SOCK_UNAVAIL;
+			}
+			else {
+				sock->flag |= SOCK_UNAVAIL;
+			}
+		}
+		else if (STREQ(sock->name, "Absorption Coefficient")) {
+			if (parametrization == SHD_PRINCIPLED_HAIR_DIRECT_ABSORPTION) {
+				sock->flag &= ~SOCK_UNAVAIL;
+			}
+			else {
+				sock->flag |= SOCK_UNAVAIL;
+			}
+		}
+		else if (STREQ(sock->name, "Random Color")) {
+			if (parametrization == SHD_PRINCIPLED_HAIR_PIGMENT_CONCENTRATION) {
+				sock->flag &= ~SOCK_UNAVAIL;
+			}
+			else {
+				sock->flag |= SOCK_UNAVAIL;
+			}
+		}
+	}
+}
+
+/* node type definition */
+void register_node_type_sh_bsdf_hair_principled(void)
+{
+	static bNodeType ntype;
+
+	sh_node_type_base(&ntype, SH_NODE_BSDF_HAIR_PRINCIPLED, "Principled Hair BSDF", NODE_CLASS_SHADER, 0);
+	node_type_socket_templates(&ntype, sh_node_bsdf_hair_principled_in, sh_node_bsdf_hair_principled_out);
+	node_type_size_preset(&ntype, NODE_SIZE_LARGE);
+	node_type_init(&ntype, node_shader_init_hair_principled);
+	node_type_storage(&ntype, "", NULL, NULL);
+	node_type_update(&ntype, node_shader_update_hair_principled, NULL);
+
+	nodeRegisterType(&ntype);
+}