diff options
Diffstat (limited to 'intern/cycles/kernel/closure/bsdf_microfacet.h')
| -rw-r--r-- | intern/cycles/kernel/closure/bsdf_microfacet.h | 98 |
1 files changed, 49 insertions, 49 deletions
diff --git a/intern/cycles/kernel/closure/bsdf_microfacet.h b/intern/cycles/kernel/closure/bsdf_microfacet.h index c6cbd1ffae7..091fbde5585 100644 --- a/intern/cycles/kernel/closure/bsdf_microfacet.h +++ b/intern/cycles/kernel/closure/bsdf_microfacet.h @@ -17,8 +17,8 @@ CCL_NAMESPACE_BEGIN typedef struct MicrofacetExtra { - float3 color, cspec0; - float3 fresnel_color; + Spectrum color, cspec0; + Spectrum fresnel_color; float clearcoat; } MicrofacetExtra; @@ -233,11 +233,11 @@ ccl_device_forceinline float3 microfacet_sample_stretched(KernelGlobals kg, * * Else it is simply white */ -ccl_device_forceinline float3 reflection_color(ccl_private const MicrofacetBsdf *bsdf, - float3 L, - float3 H) +ccl_device_forceinline Spectrum reflection_color(ccl_private const MicrofacetBsdf *bsdf, + float3 L, + float3 H) { - float3 F = make_float3(1.0f, 1.0f, 1.0f); + Spectrum F = one_spectrum(); bool use_fresnel = (bsdf->type == CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID || bsdf->type == CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID); if (use_fresnel) { @@ -357,10 +357,10 @@ ccl_device void bsdf_microfacet_ggx_blur(ccl_private ShaderClosure *sc, float ro bsdf->alpha_y = fmaxf(roughness, bsdf->alpha_y); } -ccl_device float3 bsdf_microfacet_ggx_eval_reflect(ccl_private const ShaderClosure *sc, - const float3 I, - const float3 omega_in, - ccl_private float *pdf) +ccl_device Spectrum bsdf_microfacet_ggx_eval_reflect(ccl_private const ShaderClosure *sc, + const float3 I, + const float3 omega_in, + ccl_private float *pdf) { ccl_private const MicrofacetBsdf *bsdf = (ccl_private const MicrofacetBsdf *)sc; float alpha_x = bsdf->alpha_x; @@ -370,7 +370,7 @@ ccl_device float3 bsdf_microfacet_ggx_eval_reflect(ccl_private const ShaderClosu if (m_refractive || alpha_x * alpha_y <= 1e-7f) { *pdf = 0.0f; - return make_float3(0.0f, 0.0f, 0.0f); + return zero_spectrum(); } float cosNO = dot(N, I); @@ -451,12 +451,12 @@ ccl_device float3 bsdf_microfacet_ggx_eval_reflect(ccl_private const ShaderClosu /* eq. 20 */ float common = D * 0.25f / cosNO; - float3 F = reflection_color(bsdf, omega_in, m); + Spectrum F = reflection_color(bsdf, omega_in, m); if (bsdf->type == CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID) { F *= 0.25f * bsdf->extra->clearcoat; } - float3 out = F * G * common; + Spectrum out = F * G * common; /* eq. 2 in distribution of visible normals sampling * `pm = Dw = G1o * dot(m, I) * D / dot(N, I);` */ @@ -469,13 +469,13 @@ ccl_device float3 bsdf_microfacet_ggx_eval_reflect(ccl_private const ShaderClosu return out; } - return make_float3(0.0f, 0.0f, 0.0f); + return zero_spectrum(); } -ccl_device float3 bsdf_microfacet_ggx_eval_transmit(ccl_private const ShaderClosure *sc, - const float3 I, - const float3 omega_in, - ccl_private float *pdf) +ccl_device Spectrum bsdf_microfacet_ggx_eval_transmit(ccl_private const ShaderClosure *sc, + const float3 I, + const float3 omega_in, + ccl_private float *pdf) { ccl_private const MicrofacetBsdf *bsdf = (ccl_private const MicrofacetBsdf *)sc; float alpha_x = bsdf->alpha_x; @@ -486,7 +486,7 @@ ccl_device float3 bsdf_microfacet_ggx_eval_transmit(ccl_private const ShaderClos if (!m_refractive || alpha_x * alpha_y <= 1e-7f) { *pdf = 0.0f; - return make_float3(0.0f, 0.0f, 0.0f); + return zero_spectrum(); } float cosNO = dot(N, I); @@ -494,7 +494,7 @@ ccl_device float3 bsdf_microfacet_ggx_eval_transmit(ccl_private const ShaderClos if (cosNO <= 0 || cosNI >= 0) { *pdf = 0.0f; - return make_float3(0.0f, 0.0f, 0.0f); /* vectors on same side -- not possible */ + return zero_spectrum(); /* vectors on same side -- not possible */ } /* compute half-vector of the refraction (eq. 16) */ float3 ht = -(m_eta * omega_in + I); @@ -530,7 +530,7 @@ ccl_device float3 bsdf_microfacet_ggx_eval_transmit(ccl_private const ShaderClos float out = G * fabsf(cosHI * cosHO) * common; *pdf = G1o * fabsf(cosHO * cosHI) * common; - return make_float3(out, out, out); + return make_spectrum(out); } ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals kg, @@ -541,7 +541,7 @@ ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals kg, float3 dIdy, float randu, float randv, - ccl_private float3 *eval, + ccl_private Spectrum *eval, ccl_private float3 *omega_in, ccl_private float3 *domega_in_dx, ccl_private float3 *domega_in_dy, @@ -588,7 +588,7 @@ ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals kg, if (alpha_x * alpha_y <= 1e-7f) { /* some high number for MIS */ *pdf = 1e6f; - *eval = make_float3(1e6f, 1e6f, 1e6f); + *eval = make_spectrum(1e6f); bool use_fresnel = (bsdf->type == CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID || bsdf->type == CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID); @@ -664,7 +664,7 @@ ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals kg, float common = (G1o * D) * 0.25f / cosNO; *pdf = common; - float3 F = reflection_color(bsdf, *omega_in, m); + Spectrum F = reflection_color(bsdf, *omega_in, m); *eval = G1i * common * F; } @@ -679,7 +679,7 @@ ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals kg, #endif } else { - *eval = make_float3(0.0f, 0.0f, 0.0f); + *eval = zero_spectrum(); *pdf = 0.0f; } } @@ -722,7 +722,7 @@ ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals kg, if (alpha_x * alpha_y <= 1e-7f || fabsf(m_eta - 1.0f) < 1e-4f) { /* some high number for MIS */ *pdf = 1e6f; - *eval = make_float3(1e6f, 1e6f, 1e6f); + *eval = make_spectrum(1e6f); label = LABEL_TRANSMIT | LABEL_SINGULAR; } else { @@ -750,11 +750,11 @@ ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals kg, float out = G1i * fabsf(cosHI * cosHO) * common; *pdf = cosHO * fabsf(cosHI) * common; - *eval = make_float3(out, out, out); + *eval = make_spectrum(out); } } else { - *eval = make_float3(0.0f, 0.0f, 0.0f); + *eval = zero_spectrum(); *pdf = 0.0f; } } @@ -835,10 +835,10 @@ ccl_device_inline float bsdf_beckmann_aniso_G1( return ((2.181f * a + 3.535f) * a) / ((2.577f * a + 2.276f) * a + 1.0f); } -ccl_device float3 bsdf_microfacet_beckmann_eval_reflect(ccl_private const ShaderClosure *sc, - const float3 I, - const float3 omega_in, - ccl_private float *pdf) +ccl_device Spectrum bsdf_microfacet_beckmann_eval_reflect(ccl_private const ShaderClosure *sc, + const float3 I, + const float3 omega_in, + ccl_private float *pdf) { ccl_private const MicrofacetBsdf *bsdf = (ccl_private const MicrofacetBsdf *)sc; float alpha_x = bsdf->alpha_x; @@ -848,7 +848,7 @@ ccl_device float3 bsdf_microfacet_beckmann_eval_reflect(ccl_private const Shader if (m_refractive || alpha_x * alpha_y <= 1e-7f) { *pdf = 0.0f; - return make_float3(0.0f, 0.0f, 0.0f); + return zero_spectrum(); } float cosNO = dot(N, I); @@ -910,16 +910,16 @@ ccl_device float3 bsdf_microfacet_beckmann_eval_reflect(ccl_private const Shader * pdf = pm * 0.25 / dot(m, I); */ *pdf = G1o * common; - return make_float3(out, out, out); + return make_spectrum(out); } - return make_float3(0.0f, 0.0f, 0.0f); + return zero_spectrum(); } -ccl_device float3 bsdf_microfacet_beckmann_eval_transmit(ccl_private const ShaderClosure *sc, - const float3 I, - const float3 omega_in, - ccl_private float *pdf) +ccl_device Spectrum bsdf_microfacet_beckmann_eval_transmit(ccl_private const ShaderClosure *sc, + const float3 I, + const float3 omega_in, + ccl_private float *pdf) { ccl_private const MicrofacetBsdf *bsdf = (ccl_private const MicrofacetBsdf *)sc; float alpha_x = bsdf->alpha_x; @@ -930,7 +930,7 @@ ccl_device float3 bsdf_microfacet_beckmann_eval_transmit(ccl_private const Shade if (!m_refractive || alpha_x * alpha_y <= 1e-7f) { *pdf = 0.0f; - return make_float3(0.0f, 0.0f, 0.0f); + return zero_spectrum(); } float cosNO = dot(N, I); @@ -938,7 +938,7 @@ ccl_device float3 bsdf_microfacet_beckmann_eval_transmit(ccl_private const Shade if (cosNO <= 0 || cosNI >= 0) { *pdf = 0.0f; - return make_float3(0.0f, 0.0f, 0.0f); + return zero_spectrum(); } /* compute half-vector of the refraction (eq. 16) */ float3 ht = -(m_eta * omega_in + I); @@ -971,7 +971,7 @@ ccl_device float3 bsdf_microfacet_beckmann_eval_transmit(ccl_private const Shade float out = G * fabsf(cosHI * cosHO) * common; *pdf = G1o * fabsf(cosHO * cosHI) * common; - return make_float3(out, out, out); + return make_spectrum(out); } ccl_device int bsdf_microfacet_beckmann_sample(KernelGlobals kg, @@ -982,7 +982,7 @@ ccl_device int bsdf_microfacet_beckmann_sample(KernelGlobals kg, float3 dIdy, float randu, float randv, - ccl_private float3 *eval, + ccl_private Spectrum *eval, ccl_private float3 *omega_in, ccl_private float3 *domega_in_dx, ccl_private float3 *domega_in_dy, @@ -1028,7 +1028,7 @@ ccl_device int bsdf_microfacet_beckmann_sample(KernelGlobals kg, if (alpha_x * alpha_y <= 1e-7f) { /* some high number for MIS */ *pdf = 1e6f; - *eval = make_float3(1e6f, 1e6f, 1e6f); + *eval = make_spectrum(1e6f); label = LABEL_REFLECT | LABEL_SINGULAR; } else { @@ -1074,7 +1074,7 @@ ccl_device int bsdf_microfacet_beckmann_sample(KernelGlobals kg, float out = G * common; *pdf = G1o * common; - *eval = make_float3(out, out, out); + *eval = make_spectrum(out); } #ifdef __RAY_DIFFERENTIALS__ @@ -1083,7 +1083,7 @@ ccl_device int bsdf_microfacet_beckmann_sample(KernelGlobals kg, #endif } else { - *eval = make_float3(0.0f, 0.0f, 0.0f); + *eval = zero_spectrum(); *pdf = 0.0f; } } @@ -1126,7 +1126,7 @@ ccl_device int bsdf_microfacet_beckmann_sample(KernelGlobals kg, if (alpha_x * alpha_y <= 1e-7f || fabsf(m_eta - 1.0f) < 1e-4f) { /* some high number for MIS */ *pdf = 1e6f; - *eval = make_float3(1e6f, 1e6f, 1e6f); + *eval = make_spectrum(1e6f); label = LABEL_TRANSMIT | LABEL_SINGULAR; } else { @@ -1155,11 +1155,11 @@ ccl_device int bsdf_microfacet_beckmann_sample(KernelGlobals kg, float out = G * fabsf(cosHI * cosHO) * common; *pdf = G1o * cosHO * fabsf(cosHI) * common; - *eval = make_float3(out, out, out); + *eval = make_spectrum(out); } } else { - *eval = make_float3(0.0f, 0.0f, 0.0f); + *eval = zero_spectrum(); *pdf = 0.0f; } } |