Metallic BSDF

The Metallic BSDF node is used to recreate the appearance of metals.

Đầu Vào (Inputs)

F82 Tint

Màu Cơ Sở (Base Color)

Color of the material when viewed straight on.

Edge Tint

Color of the material when viewed at a 82° angle.

Physical Conductor

IOR

Refractive index per color channel. This is the real part of a complex refractive index, scientifically denoted as n.

Extinction

Extinction coefficients per color channel. This is the imaginary part of a complex refractive index, scientifically denoted as k.

Sắp Đặt Chung (Common)

Độ Nhám/Ráp/Rối (Roughness)

Sharpness of the reflection; perfectly sharp at 0.0 and smoother with higher values.

Dị Hướng Duy Cycles (Cycles Only)

Amount of anisotropy. Higher values give elongated highlights along the tangent direction; negative values give highlights shaped perpendicular to the tangent direction.

Rotation Cycles Only

Rotates the direction of anisotropy, with 1.0 going full circle.

Compared to the Glossy BSDF node, the direction of highlight elongation is rotated by 90°. Add 0.25 to the value to correct.

Normal (Pháp Tuyến/Bình Thường)

Pháp tuyến sử dụng cho quá trình tô bóng; nếu không có gì kết nối thì pháp tuyến tô bóng mặc định sẽ được sử dụng.

Tangent (Tang/Tiếp Tuyến)

Tangent used for shading; if nothing is connected the default shading tangent is used.

Tính Chất (Properties)

Phân Bổ (Distribution)

Phép phân bổ của các Microfacet để sử dụng.

GGX:

GGX microfacet distribution.

Multiscatter GGX:

Takes multiple scattering events between microfacets into account. This gives more energy conserving results, which would otherwise be visible as excessive darkening.

Beckman (Beckmann):

Duy Cycles (Cycles Only) Beckmann microfacet distribution.

Fresnel Type

Models for describing the metal's appearance, by specifying the apparent color or the physical IOR.

F82 Tint:

Uses the Adobe F82-Tint formula for the metallic fresnel. This allows for artist friendly control of the color near the edge of the material to simulate a complex IOR.

Physical Conductor:

Accepts Complex IOR measurements from real world metals to replicate a more accurate rendering of metals than the F82 Tint Fresnel type.

Complex IOR values can be found from sources like the Physically Based database for CG artists and Refractive Index nk database.

Đầu Ra (Outputs)

Bidirectional Scattering Distribution Function: Hàm Phân Bổ Tán Xạ Hai Chiều

Đầu ra chuẩn của bộ tô bóng.

Một Số Ví Dụ (Examples)

F82 Tint

Nguyên Vật Liệu (Material)	Titanium (Default)	Aluminum	Copper	Gold
Màu Cơ Sở (Base Color)	0.617, 0.576, 0.540	0.911, 0.912, 0.917	0.972, 0.694, 0.486	1.000, 0.735, 0.353
Edge Tint	0.695, 0.726, 0.770	0.848, 0.877, 0.916	0.961, 0.969, 0.942	0.993, 1.000, 1.000

Physical Conductor

Nguyên Vật Liệu (Material)	Titanium (Default)	Aluminum	Copper	Gold
IOR	2.757, 2.512, 2.231	1.333, 0.945, 0.582	0.235, 0.729, 1.369	0.000, 0.470, 1.439
Extinction	3.867, 3.404, 3.009	7.434, 6.340, 5.181	5.666, 2.562, 2.227	182.6, 2.189, 1.660