Author Topic: Terrain - Map vs. Object  (Read 2549 times)

ToFi

    Reputation: 11
Terrain - Map vs. Object
« on: June 22, 2012, 12:31:30 pm »
June 22, 2012, 12:31:30 pm
Hi,
I created a test terrain. Test intention: To see the difference between an imported terrain and the map version of the same landscape.
Once I imported the object and once the map.
That doesn´t fit at all. What is wrong? Tipps would be cool.
Tofi

P.S.: The cube is 600m to see the relations
The landscape is  5000x5000 m.

Re: Terrain - Map vs. Object
« Reply #1 on: June 22, 2012, 12:42:38 pm »
June 22, 2012, 12:42:38 pm
Hi ToFi, this (and many other questions) are answered in the Tips, Tricks and Shortcuts thread (Search for "Terrains in Lumion"):
http://lumion3d.com/forum/f-a-q/lumion-2-tips-tricks-and-shortcuts/

ToFi

    Reputation: 11
Re: Terrain - Map vs. Object
« Reply #2 on: June 22, 2012, 01:22:44 pm »
June 22, 2012, 01:22:44 pm
Morten,
I saw that tipps before making the scene.
The resolution, the height-32bit-rgb-600m-0-3 concept ans so on.
Don´t see that the solution for my issue can be taken out of that terrain tipps.
Tofi

P..s.: I just saw that the width of the terrain should be max 2048m.
Retry it with that measures.

Re: Terrain - Map vs. Object
« Reply #3 on: June 22, 2012, 01:44:40 pm »
June 22, 2012, 01:44:40 pm
P..s.: I just saw that the width of the terrain should be max 2048m.
Retry it with that measures.

As the post explains, the Lumion terrain is 2048x2048m by default and there is no way to scale it up/down along any axis (this has been requested before). You can import your own terrain mesh if you need a bigger or smaller terrain size - simply apply a Landscape material to it to be able to paint on it.

ToFi

    Reputation: 11
Re: Terrain - Map vs. Object
« Reply #4 on: June 22, 2012, 02:28:16 pm »
June 22, 2012, 02:28:16 pm
Hi Morten,
with the model in 2048x2048 the map version and object fit. Except the height.
In the tipps you can read following:...RGB 0 to 3.0 in Photoshop = 0m to 600m in Lumion

How can I push the 32-bit depth map to 3 in photoshop?

Tofi

Re: Terrain - Map vs. Object
« Reply #5 on: June 22, 2012, 02:53:56 pm »
June 22, 2012, 02:53:56 pm
1) Image -> Mode -> 32-bits per channel

2) Colour picker -> 32-bit value -> R: / G: / B:

ToFi

    Reputation: 11
Re: Terrain - Map vs. Object
« Reply #6 on: June 22, 2012, 03:48:41 pm »
June 22, 2012, 03:48:41 pm
2) Colour picker -> 32-bit value -> R: / G: / B:

Sorry, don´t know that workflow...

You mean that window?

Or the colour pickers here?


Re: Terrain - Map vs. Object
« Reply #7 on: June 22, 2012, 06:59:15 pm »
June 22, 2012, 06:59:15 pm
2) Farbwähler -> 32-bit-Wert -> R: / G: / B: -> More than 1.0

ToFi

    Reputation: 11
Re: Terrain - Map vs. Object
« Reply #8 on: June 23, 2012, 02:03:15 pm »
June 23, 2012, 02:03:15 pm
Hi Morten,
I´m familiar with Photoshop. But I do not understand what you mean with your, for me, cryptic workflow.
Chris, the PS-special-agent in our agency do not understand too...

best regards
Tofi

Re: Terrain - Map vs. Object
« Reply #9 on: June 25, 2012, 04:18:40 pm »
June 25, 2012, 04:18:40 pm
Well, the reason it may sound cryptic is that it's actually rather difficult to edit a 32-bit heightmap in Photoshop. Anything above RGB 1,1,1 in the Farbwähler is pure white :)

As you saw in the Tips, Tricks and Shortcuts thread, you can boost the white color in the Farbwähler from 1,1,1 to up to 20,20,20.

32-bit texture in Lumion:
0 - 1 = 0 - 200m
0 - 2 = 0 - 400m
and so on...

Unfortunately, I am not a Photoshop expert, so I don't know if there's a way to scale the high dynamic range, so that the pure white (1-20) spectrum would be visible on a regular monitor, or indeed, if there is a way to convert an existing heightmap to the 1-20 spectrum.

Needless to say, the developers are aware of the fact that this makes it hard, if not impossible to make a heightmap in Photoshop that goes beyond 0 - 200m.