Commit: b12151eceb76cab4a49f9df661ce6156bbeaaa21
Author: Brecht Van Lommel
Date: Sun Jun 8 12:46:12 2014 +0200
https://developer.blender.org/rBb12151eceb76cab4a49f9df661ce6156bbeaaa21
Cycles: glossy and anisotropic BSDF changes
* Anisotropic BSDF now supports GGX and Beckmann distributions, Ward has been
removed because other distributions are superior.
* GGX is now the default distribution for all glossy and anisotropic nodes,
since it looks good, has low noise and is fast to evaluate.
* Ashikhmin-Shirley is now available in the Glossy BSDF.
===================================================================
M intern/cycles/blender/blender_shader.cpp
M intern/cycles/kernel/CMakeLists.txt
M intern/cycles/kernel/closure/bsdf.h
M intern/cycles/kernel/closure/bsdf_ashikhmin_shirley.h
M intern/cycles/kernel/closure/bsdf_microfacet.h
D intern/cycles/kernel/closure/bsdf_ward.h
M intern/cycles/kernel/osl/osl_closures.cpp
M intern/cycles/kernel/shaders/node_anisotropic_bsdf.osl
M intern/cycles/kernel/shaders/node_glossy_bsdf.osl
M intern/cycles/kernel/shaders/stdosl.h
M intern/cycles/kernel/svm/svm_closure.h
M intern/cycles/kernel/svm/svm_types.h
M intern/cycles/render/nodes.cpp
M source/blender/makesdna/DNA_node_types.h
M source/blender/makesrna/intern/rna_nodetree.c
M source/blender/nodes/NOD_static_types.h
M source/blender/nodes/shader/nodes/node_shader_bsdf_anisotropic.c
M source/blender/nodes/shader/nodes/node_shader_bsdf_glass.c
M source/blender/nodes/shader/nodes/node_shader_bsdf_glossy.c
M source/blender/nodes/shader/nodes/node_shader_bsdf_refraction.c
===================================================================
diff --git a/intern/cycles/blender/blender_shader.cpp
b/intern/cycles/blender/blender_shader.cpp
index 226e7a7..318ca10 100644
--- a/intern/cycles/blender/blender_shader.cpp
+++ b/intern/cycles/blender/blender_shader.cpp
@@ -323,13 +323,18 @@ static ShaderNode *add_node(Scene *scene, BL::BlendData
b_data, BL::Scene b_scen
switch (b_aniso_node.distribution())
{
+ case BL::ShaderNodeBsdfAnisotropic::distribution_SHARP:
+ aniso->distribution = ustring("Sharp");
+ break;
+ case BL::ShaderNodeBsdfAnisotropic::distribution_BECKMANN:
+ aniso->distribution = ustring("Beckmann");
+ break;
+ case BL::ShaderNodeBsdfAnisotropic::distribution_GGX:
+ aniso->distribution = ustring("GGX");
+ break;
case
BL::ShaderNodeBsdfAnisotropic::distribution_ASHIKHMIN_SHIRLEY:
aniso->distribution = ustring("Ashikhmin-Shirley");
break;
- case BL::ShaderNodeBsdfAnisotropic::distribution_WARD:
- default:
- aniso->distribution = ustring("Ward");
- break;
}
node = aniso;
@@ -367,6 +372,9 @@ static ShaderNode *add_node(Scene *scene, BL::BlendData
b_data, BL::Scene b_scen
case BL::ShaderNodeBsdfGlossy::distribution_GGX:
glossy->distribution = ustring("GGX");
break;
+ case BL::ShaderNodeBsdfGlossy::distribution_ASHIKHMIN_SHIRLEY:
+ glossy->distribution = ustring("Ashikhmin-Shirley");
+ break;
}
node = glossy;
}
diff --git a/intern/cycles/kernel/CMakeLists.txt
b/intern/cycles/kernel/CMakeLists.txt
index 6b6fcb1..58142ee 100644
--- a/intern/cycles/kernel/CMakeLists.txt
+++ b/intern/cycles/kernel/CMakeLists.txt
@@ -60,7 +60,6 @@ set(SRC_CLOSURE_HEADERS
closure/bsdf_toon.h
closure/bsdf_transparent.h
closure/bsdf_util.h
- closure/bsdf_ward.h
closure/bsdf_ashikhmin_shirley.h
closure/bsdf_westin.h
closure/bsdf_hair.h
diff --git a/intern/cycles/kernel/closure/bsdf.h
b/intern/cycles/kernel/closure/bsdf.h
index 371d0bf..8ddf497 100644
--- a/intern/cycles/kernel/closure/bsdf.h
+++ b/intern/cycles/kernel/closure/bsdf.h
@@ -24,7 +24,6 @@
#include "../closure/bsdf_refraction.h"
#include "../closure/bsdf_transparent.h"
#ifdef __ANISOTROPIC__
-#include "../closure/bsdf_ward.h"
#include "../closure/bsdf_ashikhmin_shirley.h"
#endif
#include "../closure/bsdf_westin.h"
@@ -84,21 +83,20 @@ ccl_device int bsdf_sample(KernelGlobals *kg, const
ShaderData *sd, const Shader
eval, omega_in, &domega_in->dx, &domega_in->dy,
pdf);
break;
case CLOSURE_BSDF_MICROFACET_GGX_ID:
+ case CLOSURE_BSDF_MICROFACET_GGX_ANISO_ID:
case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
label = bsdf_microfacet_ggx_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;
case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
+ case CLOSURE_BSDF_MICROFACET_BECKMANN_ANISO_ID:
case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
label = bsdf_microfacet_beckmann_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;
#ifdef __ANISOTROPIC__
- case CLOSURE_BSDF_WARD_ID:
- label = bsdf_ward_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;
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;
@@ -183,18 +181,18 @@ ccl_device float3 bsdf_eval(KernelGlobals *kg, const
ShaderData *sd, const Shade
eval = bsdf_transparent_eval_reflect(sc, sd->I,
omega_in, pdf);
break;
case CLOSURE_BSDF_MICROFACET_GGX_ID:
+ case CLOSURE_BSDF_MICROFACET_GGX_ANISO_ID:
case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
eval = bsdf_microfacet_ggx_eval_reflect(sc,
sd->I, omega_in, pdf);
break;
case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
+ case CLOSURE_BSDF_MICROFACET_BECKMANN_ANISO_ID:
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_WARD_ID:
- eval = bsdf_ward_eval_reflect(sc, sd->I,
omega_in, pdf);
- break;
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
@@ -253,18 +251,18 @@ ccl_device float3 bsdf_eval(KernelGlobals *kg, const
ShaderData *sd, const Shade
eval = bsdf_transparent_eval_transmit(sc,
sd->I, omega_in, pdf);
break;
case CLOSURE_BSDF_MICROFACET_GGX_ID:
+ case CLOSURE_BSDF_MICROFACET_GGX_ANISO_ID:
case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
eval = bsdf_microfacet_ggx_eval_transmit(sc,
sd->I, omega_in, pdf);
break;
case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
+ case CLOSURE_BSDF_MICROFACET_BECKMANN_ANISO_ID:
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_WARD_ID:
- eval = bsdf_ward_eval_transmit(sc, sd->I,
omega_in, pdf);
- break;
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
@@ -341,18 +339,18 @@ ccl_device void bsdf_blur(KernelGlobals *kg,
ShaderClosure *sc, float roughness)
bsdf_transparent_blur(sc, roughness);
break;
case CLOSURE_BSDF_MICROFACET_GGX_ID:
+ case CLOSURE_BSDF_MICROFACET_GGX_ANISO_ID:
case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
bsdf_microfacet_ggx_blur(sc, roughness);
break;
case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
+ case CLOSURE_BSDF_MICROFACET_BECKMANN_ANISO_ID:
case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
bsdf_microfacet_beckmann_blur(sc, roughness);
break;
#ifdef __ANISOTROPIC__
- case CLOSURE_BSDF_WARD_ID:
- bsdf_ward_blur(sc, roughness);
- break;
case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
+ case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ANISO_ID:
bsdf_ashikhmin_shirley_blur(sc, roughness);
break;
#endif
diff --git a/intern/cycles/kernel/closure/bsdf_ashikhmin_shirley.h
b/intern/cycles/kernel/closure/bsdf_ashikhmin_shirley.h
index ea5b610..6a5d041 100644
--- a/intern/cycles/kernel/closure/bsdf_ashikhmin_shirley.h
+++ b/intern/cycles/kernel/closure/bsdf_ashikhmin_shirley.h
@@ -31,16 +31,28 @@ Other than that, the implementation directly follows the
paper.
CCL_NAMESPACE_BEGIN
-
ccl_device int bsdf_ashikhmin_shirley_setup(ShaderClosure *sc)
{
- sc->data0 = clamp(sc->data0, 1e-4f, 1.0f); /* store roughness. could
already convert to exponent to save some cycles in eval, */
- sc->data1 = clamp(sc->data1, 1e-4f, 1.0f); /* but this is more
consistent with other bsdfs and shader_blur. */
+ /* store roughness. could already convert to exponent to save some
cycles
+ * in eval, but this is more consistent with other bsdfs and
shader_blur. */
+ sc->data0 = clamp(sc->data0, 1e-4f, 1.0f);
+ sc->data1 = sc->data0;
sc->type = CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID;
return SD_BSDF | SD_BSDF_HAS_EVAL | SD_BSDF_GLOSSY;
}
+ccl_device int bsdf_ashikhmin_shirley_aniso_setup(ShaderClosure *sc)
+{
+ /* store roughness. could already convert to exponent to save some
cycles
+ * in eval, but this is more consistent with other bsdfs and
shader_blur. */
+ sc->data0 = clamp(sc->data0, 1e-4f, 1.0f);
+ sc->data1 = clamp(sc->data1, 1e-4f, 1.0f);
+
+ sc->type = CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ANISO_ID;
+ return SD_BSDF | SD_BSDF_HAS_EVAL | SD_BSDF_GLOSSY;
+}
+
ccl_device void bsdf_ashikhmin_shirley_blur(ShaderClosure *sc, float roughness)
{
sc->data0 = fmaxf(roughness, sc->data0); /* clamp roughness */
@@ -55,7 +67,6 @@ ccl_device_inline float
bsdf_ashikhmin_shirley_roughness_to_exponent(float rough
ccl_device float3 bsdf_ashikhmin_shirley_eval_reflect(const ShaderClosure *sc,
const float3 I, const float3 omega_in, float *pdf)
{
float3 N = sc->N;
- float3 T = sc->T;
float NdotI = dot(N, I); /* in Cycles/OSL convention I is
omega_out */
float NdotO = dot(N, omega_in); /* and consequently we use for O
omaga_in ;) */
@@ -85,7 +96,7 @@ ccl_device float3 bsdf_ashikhmin_shirley_eval_reflect(const
ShaderClosure *sc, c
}
else { /* => ANisotropic case */
float3 X, Y;
- make_orthonormals_tangent(N, T, &X, &Y);
+ make_orthonormals_tangent(N, sc->T, &X, &Y);
float HdotX = dot(H, X);
float HdotY = dot(H, Y);
@@ -117,7 +128,6 @@ ccl_device_inline void
bsdf_ashikhmin_shirley_sample_first_quadrant(float n_x, f
ccl_device int bsdf_ashikhmin_shirley_sample(const ShaderClosure *sc, float3
Ng, float3 I, float3 dIdx, float3 dIdy, float randu, float randv, float3 *eval,
float3 *omega_in, float3 *domega_in_dx, float3 *domega_in_dy, float *pdf)
{
float3 N = sc->N;
- float3 T = sc->T;
float NdotI = dot(N, I);
if (NdotI > 0.0f) {
@@ -127,7 +137,11 @@ ccl_device int bsdf_ashikhmin_shirley_sample(const
ShaderClosure *sc, float3 Ng,
/* get x,y basis on the surface for anisotropy */
float3 X, Y;
- make_orthonormals_tangent(N, T, &X, &Y);
+
+ if(n_x == n_y)
+ make_orthonormals(N, &X, &Y);
+ else
+ make_orthonormals_tangent(N, sc->T, &X, &Y);
/* sample spherical coords for h in tangent space */
float phi;
diff --git a/intern/cycles/kernel/closure/bsdf_microfacet.h
b/intern/cycles/kernel/closure/bsdf_microfacet.h
index b9b682c..4a3d223 100644
--- a/intern/cycles/kernel/closure/bsdf_microfacet.h
+++ b/intern/cycles/kernel/closure/bsdf_microfacet.h
@@ -365,7 +365,7 @@ ccl_device int
bsdf_microfacet_ggx_aniso_setup(ShaderClosure *sc)
sc->data0 = clamp(sc->data0, 0.0f, 1.0f); /* alpha_x */
sc->data1 = clamp(sc->data1, 0.0f, 1.0f); /* alpha_y */
- sc->type = CLOSURE_BSDF_MICROFACET_GGX_ID;
+ sc->type = CLOSURE_BSDF_MICROFACET_GGX_ANISO_ID;
return SD_BSDF|SD_BSDF_HAS_EVAL|SD_BSDF_GLOSSY;
}
@@ -713,7 +713,7 @@ ccl_device int
bsdf_microfacet_beckmann_aniso_setup(ShaderClosure *sc)
sc->data0 = clamp(sc->data0, 0.0f, 1.0f); /* alpha_x */
sc->data1 =
@@ Diff output truncated at 10240 characters. @@
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