34 replies to this topic

[RobC]

When I can' be bothered to use my own web hosting space I use http://imgur.com/

Yeah that's what I use also now

[Bruce R]

I have installed Unity, found its very similar to Gmax in the way one can move things around in the Perspective view, basically the same objects except a cube, rather than a box, most of the tools are their, adding textures to the shaders, boolean, skybox, the X, Y, Z co-ordinates so on and so forth, nice to know one can easily import objects and textures into the assetts to show in the project view, which I must say is fabulous for deciding which assetts fit best into your project, I have the Luxology plugin in PS that I use to determine what type of seamless texture I want to go with and importing it is then easy.

 

I haven't figuired out how to create my own terrain, but when CF arrives, and I can put it into unity and use terrain from Bing, if its a good enough image, I don't look at USGS for terrain with my real courses most of the time, I concentrate on Australian courses mainly, best courses tend to have the best imagery, I prefer to use Google maps because I am used to it and the controls.

 

I watched that video of CF 2 years back and laughed almost all the way through it because of its simplicity and ease of use, One could almost spend a lifetime in the Unity store, were you could download and import 3D objects and textures to your hearts content, lots of it for free, I get the feeling that the best quality carry a price, but certainly their is enough freebies to make any course.

 

I had a look at the objects in the game, if they are coming with CF that will be fantastic, 3DS and Max structure's can be imported easily into the game by right clicking and adding to assetts or clicking assetts in the top main pane, If I cannot make a structure in Gmax their are numerous sites that offer free 3D objects. I can make my own tee's, Tee boxes, signs and i also can make modest buildings.

 

Looking ahead to what comes next.

[RobC]

I have a 1m Dem of the course I am A member of it is in JPEG and .ASC format. I loaded it into Microdem and exported as a greyscale Geotiff then loaded that into Photoshop and then saved that as a RAW file to inport into Unity.

It didnt work....

Side View:-

Top View:-

 

the top view you can see the layout so its kina there but I am completly stummped as to whats going wrong

Any help would be greatfully received

Cheers RobC

[Brucey Mc]

I had similar data for my local course in England.  I think I exported from Microderm in colour and then converted that to greyscale in Photoshop.  It didn't seem to export correctly in greyscale from Microdem for some reason.

Bruce

[Jimbobh]

It looks similar to if you have the wrong OS checked in the import options.

Just a thought.

[RobC]

Thanks for the help but I tried both of those and its better:-

But now there is no elevation and I know there is a change of at least 59 meters and its still not smooth.

Maybe I am expecting too much but I would expect better than that.

This is the .jpg of the DEM:-

[shimonko]

What's your greyscale heightmap look like? I haven't used Microdem but typically the color heightmap view in these apps is just an on-screen visualisation. There's a few thing things that have to be watched out for when exporting your DEM data to a 16 bit greyscale heightmap, most notably scaling from 30-90m range to occupy most of a 16 bit range (otherwise it can look flat). Feel free to post your raw file and I'll have a look.

[Brucey Mc]

Pm me if you like and send me your .asc file and I will have a try for you, see what results I am getting. Might write it down what to do so I can remember as I did mine about a year ago and then tried it again a few months later and it tooks me ages as I was doing something wrong!

[Kablammo11]

I agree with shimonko, Rob. Just desaturate your color image and save it as a grayscale in RAW format, then you should be able to import it in Unity under terrain settings - import raw. Go for a 2049x2049 size for your RAW.

 

Btw, you can copy-paste the 2nd option of a single imgur image (Direct Link) into this forum and your image will show up in here straight away without us having to make a detour to imgur.

[shimonko]

Desaturating the image would make a green and red of equal brightness be the same elevation. Definitely don't do that.
Even if Microdem allows your data to be visualised as a greyscale image, don't screen capture or save as an image as gammas can alter your height values, unnoticeably.
The underlying data must be exported as a raw heightmap, which exports the underlying elevation data as numbers.

[Kablammo11]

Yeah, didn't think it through... like he says, sorry

[RobC]

Thanks for the help and sorry for the late reply...

No need to apologize for trying to help me K11...Ever

I have been esporting from Microdem as a greyscale Geotiff then converting Directly into .RAW format. Is there something I should be doing in PS that Iam missing.

Here is the Geotif in Photoshop:-

http://i.imgur.com/fiKy2ag.png?1

The scale range is between 30 - 90 when making the image greyscale in Microdem

Cheers RobC

[shimonko]

A few things look wrong:

• Your Geotiff shouldn't have the legend and scale on it if you have exported the elevation data as GeoTiff.
• Your greyscale image above ideally should have its lowest point nearly jet black, and its heighest point near pure white.  By only ranging from a light grey to a medium grey, you're only using about a third of your available heightmap range.
• The legend on your image (if correct) makes me think you have done a desaturation or  somthing, as the greys around 80m are the same as around 30m on the legend. A particular grey value can only be one elevation.

I can't recall his name, but I remember there was a guy from Sweden on the forum who used Microdem to export into Unity. Hopefully he's reading and can advise on the exact actions needed in Microdem.

[argon]

This is a different game engine, TGC game suffers from over population of objects, trees, they have now capped it.

TGC loads all holes at once into the PC Memory , TW2008 loads 1 hole at a time !. ? does PG load all holes the same as TGC.

[Kablammo11]

Yes