Cycles: Anisotropic BSDF enabled, with tangents now computed from the active UV map.

It's using the Ward BSDF currently, which has some energy loss so might be a bit
dark. More/better BSDF options can be implemented later.

Patch by Mike Farnsworth, some modifications by me. Currently it's not possible yet
to set a custom tangent, that will follow as part of per-bsdf normals patch.

5 files changed, 5 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/node.c b/source/blender/blenkernel/intern/node.c
index 8965488a9b3..2fd54baf96f 100644
--- a/source/blender/blenkernel/intern/node.c
+++ b/source/blender/blenkernel/intern/node.c
@@ -2248,6 +2248,7 @@ static void registerShaderNodes(bNodeTreeType *ttype)
 	register_node_type_sh_particle_info(ttype);
 
 	register_node_type_sh_background(ttype);
+	register_node_type_sh_bsdf_anisotropic(ttype);
 	register_node_type_sh_bsdf_diffuse(ttype);
 	register_node_type_sh_bsdf_glossy(ttype);
 	register_node_type_sh_bsdf_glass(ttype);
diff --git a/source/blender/makesrna/intern/rna_nodetree_types.h b/source/blender/makesrna/intern/rna_nodetree_types.h
index db1e1e16adf..aa48a8cf26d 100644
--- a/source/blender/makesrna/intern/rna_nodetree_types.h
+++ b/source/blender/makesrna/intern/rna_nodetree_types.h
@@ -67,6 +67,7 @@ DefNode( ShaderNode,     SH_NODE_ADD_SHADER,         0,                      "AD
 DefNode( ShaderNode,     SH_NODE_ATTRIBUTE,          def_sh_attribute,       "ATTRIBUTE",          Attribute,        "Attribute",         ""       )
 DefNode( ShaderNode,     SH_NODE_BACKGROUND,         0,                      "BACKGROUND",         Background,       "Background",        ""       )
 DefNode( ShaderNode,     SH_NODE_HOLDOUT,            0,                      "HOLDOUT",            Holdout,          "Holdout",           ""       )
+DefNode( ShaderNode,     SH_NODE_BSDF_ANISOTROPIC,   0,                      "BSDF_ANISOTROPIC",   BsdfAnisotropic,  "Anisotropic Bsdf",  ""       )
 DefNode( ShaderNode,     SH_NODE_BSDF_DIFFUSE,       0,                      "BSDF_DIFFUSE",       BsdfDiffuse,      "Diffuse Bsdf",      ""       )
 DefNode( ShaderNode,     SH_NODE_BSDF_GLOSSY,        def_glossy,             "BSDF_GLOSSY",        BsdfGlossy,       "Glossy Bsdf",       ""       )
 DefNode( ShaderNode,     SH_NODE_BSDF_GLASS,         def_glossy,             "BSDF_GLASS",         BsdfGlass,        "Glass Bsdf",        ""       )
diff --git a/source/blender/nodes/CMakeLists.txt b/source/blender/nodes/CMakeLists.txt
index 08e0e7b0f93..f4e427ce3e3 100644
--- a/source/blender/nodes/CMakeLists.txt
+++ b/source/blender/nodes/CMakeLists.txt
@@ -146,7 +146,7 @@ set(SRC
 	shader/nodes/node_shader_vectMath.c
 	shader/nodes/node_shader_attribute.c
 	shader/nodes/node_shader_background.c
-	# shader/nodes/node_shader_bsdf_anisotropic.c  # XXX, why not included?
+	shader/nodes/node_shader_bsdf_anisotropic.c
 	shader/nodes/node_shader_bsdf_diffuse.c
 	shader/nodes/node_shader_bsdf_glossy.c
 	shader/nodes/node_shader_bsdf_glass.c
diff --git a/source/blender/nodes/NOD_shader.h b/source/blender/nodes/NOD_shader.h
index 49428c06e5f..306dd50d7e2 100644
--- a/source/blender/nodes/NOD_shader.h
+++ b/source/blender/nodes/NOD_shader.h
@@ -88,6 +88,7 @@ void register_node_type_sh_bsdf_glass(struct bNodeTreeType *ttype);
 void register_node_type_sh_bsdf_translucent(struct bNodeTreeType *ttype);
 void register_node_type_sh_bsdf_transparent(struct bNodeTreeType *ttype);
 void register_node_type_sh_bsdf_velvet(struct bNodeTreeType *ttype);
+void register_node_type_sh_bsdf_anisotropic(struct bNodeTreeType *ttype);
 void register_node_type_sh_emission(struct bNodeTreeType *ttype);
 void register_node_type_sh_holdout(struct bNodeTreeType *ttype);
 void register_node_type_sh_volume_transparent(struct bNodeTreeType *ttype);
diff --git a/source/blender/nodes/shader/nodes/node_shader_bsdf_anisotropic.c b/source/blender/nodes/shader/nodes/node_shader_bsdf_anisotropic.c
index 9157728b546..2b368420a76 100644
--- a/source/blender/nodes/shader/nodes/node_shader_bsdf_anisotropic.c
+++ b/source/blender/nodes/shader/nodes/node_shader_bsdf_anisotropic.c
@@ -51,7 +51,7 @@ void register_node_type_sh_bsdf_anisotropic(bNodeTreeType *ttype)
 {
 	static bNodeType ntype;
 
-	node_type_base(ttype, &ntype, SH_NODE_BSDF_ANISOTROPIC, "Glossy Anisotropic BSDF", NODE_CLASS_SHADER, 0);
+	node_type_base(ttype, &ntype, SH_NODE_BSDF_ANISOTROPIC, "Anisotropic BSDF", NODE_CLASS_SHADER, 0);
 	node_type_compatibility(&ntype, NODE_NEW_SHADING);
 	node_type_socket_templates(&ntype, sh_node_bsdf_anisotropic_in, sh_node_bsdf_anisotropic_out);
 	node_type_size(&ntype, 150, 60, 200);