Cleanup: Remove __ANISOTROPIC__ define.

That was only needed in the beginning, when we did not had support for tangents. It's time to clean some of the defines up, it's getting a bit too much.

intern/cycles/kernel/closure/bsdf.h

@@ -23,9 +23,7 @@
 #include "../closure/bsdf_reflection.h"
 #include "../closure/bsdf_refraction.h"
 #include "../closure/bsdf_transparent.h"
-#ifdef __ANISOTROPIC__
 #include "../closure/bsdf_ashikhmin_shirley.h"
-#endif
 #include "../closure/bsdf_westin.h"
 #include "../closure/bsdf_toon.h"
 #include "../closure/bsdf_hair.h"
@@ -94,13 +92,11 @@ ccl_device int bsdf_sample(KernelGlobals *kg, const ShaderData *sd, const Shader
 			label = bsdf_microfacet_beckmann_sample(kg, sc, sd->Ng, sd->I, sd->dI.dx, sd->dI.dy, randu, randv,
 				eval, omega_in, &domega_in->dx, &domega_in->dy, pdf);
 			break;
-#ifdef __ANISOTROPIC__
 		case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
 		case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ANISO_ID:
 			label = bsdf_ashikhmin_shirley_sample(sc, sd->Ng, sd->I, sd->dI.dx, sd->dI.dy, randu, randv,
 				eval, omega_in, &domega_in->dx, &domega_in->dy, pdf);
 			break;
-#endif
 		case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
 			label = bsdf_ashikhmin_velvet_sample(sc, sd->Ng, sd->I, sd->dI.dx, sd->dI.dy, randu, randv,
 				eval, omega_in, &domega_in->dx, &domega_in->dy, pdf);
@@ -190,12 +186,10 @@ ccl_device float3 bsdf_eval(KernelGlobals *kg, const ShaderData *sd, const Shade
 			case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
 				eval = bsdf_microfacet_beckmann_eval_reflect(sc, sd->I, omega_in, pdf);
 				break;
-#ifdef __ANISOTROPIC__
 			case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
 			case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ANISO_ID:
 				eval = bsdf_ashikhmin_shirley_eval_reflect(sc, sd->I, omega_in, pdf);
 				break;
-#endif
 			case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
 				eval = bsdf_ashikhmin_velvet_eval_reflect(sc, sd->I, omega_in, pdf);
 				break;
@@ -260,12 +254,10 @@ ccl_device float3 bsdf_eval(KernelGlobals *kg, const ShaderData *sd, const Shade
 			case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
 				eval = bsdf_microfacet_beckmann_eval_transmit(sc, sd->I, omega_in, pdf);
 				break;
-#ifdef __ANISOTROPIC__
 			case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
 			case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ANISO_ID:
 				eval = bsdf_ashikhmin_shirley_eval_transmit(sc, sd->I, omega_in, pdf);
 				break;
-#endif
 			case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
 				eval = bsdf_ashikhmin_velvet_eval_transmit(sc, sd->I, omega_in, pdf);
 				break;
@@ -348,12 +340,10 @@ ccl_device void bsdf_blur(KernelGlobals *kg, ShaderClosure *sc, float roughness)
 		case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
 			bsdf_microfacet_beckmann_blur(sc, roughness);
 			break;
-#ifdef __ANISOTROPIC__
 		case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
 		case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ANISO_ID:
 			bsdf_ashikhmin_shirley_blur(sc, roughness);
 			break;
-#endif
 		case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
 			bsdf_ashikhmin_velvet_blur(sc, roughness);
 			break;

intern/cycles/kernel/kernel_types.h

@@ -106,7 +106,6 @@ CCL_NAMESPACE_BEGIN
 #define __BACKGROUND_MIS__
 #define __LAMP_MIS__
 #define __AO__
-#define __ANISOTROPIC__
 //#define __CAMERA_MOTION__
 //#define __OBJECT_MOTION__
 //#define __HAIR__
@@ -151,7 +150,6 @@ CCL_NAMESPACE_BEGIN
 #define __BACKGROUND_MIS__
 #define __LAMP_MIS__
 #define __AO__
-#define __ANISOTROPIC__
 #define __CAMERA_MOTION__
 #define __OBJECT_MOTION__
 #define __HAIR__

intern/cycles/kernel/svm/svm.h

@@ -420,12 +420,10 @@ ccl_device_noinline void svm_eval_nodes(KernelGlobals *kg, ShaderData *sd, Shade
 			case NODE_LIGHT_FALLOFF:
 				svm_node_light_falloff(sd, stack, node);
 				break;
-#endif			
+#endif
-#ifdef __ANISOTROPIC__
 			case NODE_TANGENT:
 				svm_node_tangent(kg, sd, stack, node);
-				break;
+				break;		
-#endif			
 #ifdef __NORMAL_MAP__
 			case NODE_NORMAL_MAP:
 				svm_node_normal_map(kg, sd, stack, node);

intern/cycles/kernel/svm/svm_closure.h

@@ -294,7 +294,6 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
 			if(sc) {
 				sc->N = N;
 
-#ifdef __ANISOTROPIC__
 				sc->T = stack_load_float3(stack, data_node.y);
 
 				/* rotate tangent */
@@ -324,9 +323,6 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
 					sd->flag |= bsdf_microfacet_ggx_aniso_setup(sc);
 				else
 					sd->flag |= bsdf_ashikhmin_shirley_aniso_setup(sc);
-#else
-				sd->flag |= bsdf_diffuse_setup(sc);
-#endif
 			}
 			break;
 		}