Timeline for Relation between Fresnel IOR and Layerweight blend?
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 1, 2015 at 10:09 | history | edited | Jaroslav Jerryno Novotny | CC BY-SA 3.0 |
added 111 characters in body
|
| May 1, 2015 at 9:31 | comment | added | brecht | The formula is IOR = 1/(1 - blend) | |
| May 1, 2015 at 9:29 | vote | accept | Ascalon | ||
| May 1, 2015 at 9:23 | history | edited | Jaroslav Jerryno Novotny | CC BY-SA 3.0 |
added 30 characters in body
|
| May 1, 2015 at 9:23 | comment | added | Jaroslav Jerryno Novotny | Correction: That formula is wrong it has a different graph function than what it should. It matches in the border cases but that's all. See the plot what the graph is. | |
| May 1, 2015 at 9:16 | history | edited | Jaroslav Jerryno Novotny | CC BY-SA 3.0 |
added 24 characters in body
|
| Apr 30, 2015 at 20:43 | history | edited | Jaroslav Jerryno Novotny | CC BY-SA 3.0 |
added 264 characters in body
|
| Apr 30, 2015 at 20:36 | comment | added | Jaroslav Jerryno Novotny |
@Drudge I don't know if it's physically accurate (depends on the coding that developers know) but by comparing the results from both nodes on a test sphere you can use formula: IOR = 1 - log(1 - Blend)
|
|
| Apr 30, 2015 at 20:20 | comment | added | Ascalon | If Blend is adding additional Blender, then when using the Layer Weight node, what determines the IOR that it's using? I don't really understand the complex math enough to follow much from that link. Is there a way to translate IOR into a value between 0 and 1 and use it in layer weight accurately? And if you could, would that be even close to physically accurate? | |
| Apr 30, 2015 at 17:31 | history | answered | Jaroslav Jerryno Novotny | CC BY-SA 3.0 |