[討論]磨砂玻璃在tracepro里面怎么設(shè)置？ [復(fù)制鏈接]

斑主用的是哪個(gè)版本的ＴＰ��？４..０以前版本的manual有沒mentioned？

Solution: G~X93J  
The plastic material with the rough diffusing surface can be modeled in Z=.$mFE\  
TracePro, but as two separate properties (select Define/EditPropertyData). ;^DG P  
W[SZZV_(tu  
MATERIAL PROPERTY 7^FJ+gN8b  
A TracePro Material Property can be created, and the index of refraction of /'QfLW>6  
the material is entered here, as well as an absorption coefficient if it is :406Oa  
known (this would be for absorption losses just from propogating through a EQ%,IK/  
given thickness of a clear polished sample of the material, unrelated to the lS96sjJp@  
diffusing surface finish.  Entering zero for the absorption coefficient is |kc#=b@l  
propobly a reasonable estimate for a transparent material. iOrpr,@  
YwaWhBCIF  
The Material Property is applied to the Object (Define/Apply Properties). hM "6-60  
 3PUyua'  
SURFACE PROPERTY ,a'Y^[4k?  
A TracePro Surface Property can specify 5 possible outcomes for light incident [4 y7tjar^  
on a surface - Specular Transmission, Specular Reflection, Scattered )WH;G:
$&"  
Transmission (BTDF). Scattered Reflection (BRDF), and Absorption. fq<JX5DER  
! _p
(H  
For your property, I expect that Specular Transmission, Specular Reflection, ,)35Vi;.  
and Absorption would all be 0, leaving only Scattered Transmission (BTDF). TsF>Y""*M  
Scattered Reflection (BRDF).  BTDF and BRDF are controlled by 3 coefficients - Q4h6K7  
A, B, and g.  For an initial estimate, I would suggest entering BTDF(g) = Op5S
'  
BRDF(g) = 0, which defines a Lambertian dsitribution. 2Fc>6]:*  
T=,A p