Advanced search
Registered users
Username:

Password:

Log me on automatically next visit?

» Forgot password
» Registration
Random image

Icosahedron in Ring
Icosahedron in Ring
Comments: 2
Horo

19.04.2024, 13:14








Google ads below

      

    


Bottled City
Bottled City

            

Bottled City
Description: The bottle is from the Glassware set (once at Daz 3D) and its size adjusted. Near the floor a 2D-Disk with a grass material from "Vegetation". The city is a self made terrain and the material comes with Bryce. The bottle rests on a Fading Disk from "Hypertextures Expansion" (both available at Daz 3D). Light and backdrop by the "Entre" HDRI (unpublished). A city packed in a glass bottle.
Added by: Horo
Keywords: IBL, HDRI
Date: 08.12.2023 14:17
Hits: 326
Downloads: 1
Rating: 0.00 (0 Vote(s))
File size: 321.8 KB
Previous image: Strange Hamlet
Next image: Boxed Nature



Author: Comment:
electro-elvis
Member

Join Date: 12.11.2010
Comments: 247
-

Well done picture. First I am surprised about the material of the city. You wrote "it comes with Bryce". It look quite nicde.
Second the glass material also looks great. What numbers have you used for Maximum Ray Depth and for TIR?
08.12.2023 19:53 Offline electro-elvis
Horo
Admin

Join Date: 05.26.2004
Comments: 4721
-

Thank you electro-elvis. 16 rays per pixel, max ray depth 6 and TIR default. Render time 3.5 hours.
08.13.2023 07:34 Offline Horo h.-r.h.wernli at bluewin.ch https://www.horo.ch/
electro-elvis
Member

Join Date: 12.11.2010
Comments: 247
-

It would be interesting to know, if the glass would look differently, when you use a TIR of 2. The default of TIR is, that it is not activated.
08.14.2023 10:07 Offline electro-elvis
Horo
Admin

Join Date: 05.26.2004
Comments: 4721
-

I always though if TIR is not selected, Total Internal Reflection is not limited. I plop rendered a part without TIR, with TIR 1, 4 and 10. I couldn't see a difference, render times were also the same for all tries.
08.14.2023 12:42 Offline Horo h.-r.h.wernli at bluewin.ch https://www.horo.ch/
electro-elvis
Member

Join Date: 12.11.2010
Comments: 247
-

As far as I know and also checked with a test picture: When TIR is not selected, the Internal Reflection is not calculated. But often the object is not suitable for calculating TIR at all, which could most probably the case with the bottle you used.
08.16.2023 13:36 Offline electro-elvis
Horo
Admin

Join Date: 05.26.2004
Comments: 4721
-

Thank you again for your comment. You are correct. After my test renders and my previous comment, I spent an afternoon to read about what TIR actually is. Then I made test renders, one is shown in the "Show Us Your Renderers Part12" DAZ forum. It seems to be important that the transitions are at some different angles and the max Ray Depth is high enough that the light can pass trough the the objects. Each surface is not only transparent but also mirrors a part of the light received. This reflection also passes through but at a different angle (Fresnel) and the final render result is usually darker as if when no TIR is used and all surfaces are just transparent.
08.16.2023 14:20 Offline Horo h.-r.h.wernli at bluewin.ch https://www.horo.ch/


Previous image:
Strange Hamlet  
 Next image:
Boxed Nature

 

 
[Discord Server] 

Powered by 4images 1.9   Copyright © 2015 4homepages.de

Template © 2002 www.vierstra.com