1 files changed, 44 insertions, 2 deletions

diff --git a/intern/cycles/render/nodes.h b/intern/cycles/render/nodes.h
index a755b653a5b..c0271a3c8eb 100644
--- a/intern/cycles/render/nodes.h
+++ b/intern/cycles/render/nodes.h
@@ -252,6 +252,7 @@ public:
 class PointDensityTextureNode : public ShaderNode {
 public:
 	SHADER_NODE_NO_CLONE_CLASS(PointDensityTextureNode)
+	virtual int get_group() { return NODE_GROUP_LEVEL_3; }
 
 	~PointDensityTextureNode();
 	ShaderNode *clone() const;
@@ -321,7 +322,14 @@ private:
 	static bool initialized;
 };
 
-class BsdfNode : public ShaderNode {
+class BsdfBaseNode : public ShaderNode {
+public:
+	BsdfBaseNode(const NodeType *node_type);
+
+	ClosureType closure;
+};
+
+class BsdfNode : public BsdfBaseNode {
 public:
 	explicit BsdfNode(const NodeType *node_type);
 	SHADER_NODE_BASE_CLASS(BsdfNode)
@@ -333,7 +341,6 @@ public:
 	float3 color;
 	float3 normal;
 	float surface_mix_weight;
-	ClosureType closure;
 
 	virtual bool equals(const ShaderNode& /*other*/)
 	{
@@ -361,6 +368,39 @@ public:
 	float roughness;
 };
 
+/* Disney principled BRDF */
+class PrincipledBsdfNode : public BsdfBaseNode {
+public:
+	SHADER_NODE_CLASS(PrincipledBsdfNode)
+
+	bool has_spatial_varying() { return true; }
+	bool has_surface_bssrdf();
+	bool has_bssrdf_bump();
+	void compile(SVMCompiler& compiler, ShaderInput *metallic, ShaderInput *subsurface, ShaderInput *subsurface_radius,
+		ShaderInput *specular, ShaderInput *roughness, ShaderInput *specular_tint, ShaderInput *anisotropic,
+		ShaderInput *sheen, ShaderInput *sheen_tint, ShaderInput *clearcoat, ShaderInput *clearcoat_roughness,
+		ShaderInput *ior, ShaderInput *transmission, ShaderInput *anisotropic_rotation, ShaderInput *transmission_roughness);
+
+	float3 base_color;
+	float3 subsurface_color, subsurface_radius;
+	float metallic, subsurface, specular, roughness, specular_tint, anisotropic,
+		sheen, sheen_tint, clearcoat, clearcoat_roughness, ior, transmission,
+		anisotropic_rotation, transmission_roughness;
+	float3 normal, clearcoat_normal, tangent;
+	float surface_mix_weight;
+	ClosureType distribution, distribution_orig;
+
+	virtual bool equals(const ShaderNode * /*other*/)
+	{
+		/* TODO(sergey): With some care BSDF nodes can be de-duplicated. */
+		return false;
+	}
+
+	ClosureType get_closure_type() { return closure; }
+	bool has_integrator_dependency();
+	void attributes(Shader *shader, AttributeRequestSet *attributes);
+};
+
 class TranslucentBsdfNode : public BsdfNode {
 public:
 	SHADER_NODE_CLASS(TranslucentBsdfNode)
@@ -445,6 +485,7 @@ public:
 	virtual ClosureType get_closure_type() { return CLOSURE_EMISSION_ID; }
 
 	bool has_surface_emission() { return true; }
+	bool has_volume_support() { return true; }
 
 	float3 color;
 	float strength;
@@ -496,6 +537,7 @@ public:
 		return ShaderNode::get_feature() | NODE_FEATURE_VOLUME;
 	}
 	virtual ClosureType get_closure_type() { return closure; }
+	virtual bool has_volume_support() { return true; }
 
 	float3 color;
 	float density;