A problem with a hightmap

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 01:23

Iv made a hightmap in greyscale in the gimp saved it as a bmp size 512 and it says in l3dt : incorrect bit depth for BMP JPEG HF

why???

used guassian blur

please help

Buggi · Post by **Buggi** » 07 Jul 2006, 01:43

there's a difference between bit depths on gray-scale maps.

8bpp, to 32bpp

Not sure when is better.... try 8bpp, you'll get "banding" in the image, but it may be the only thing compatible with the conversion pipeline.

zorbawic · Post by **zorbawic** » 07 Jul 2006, 01:46

open in mspaint and save as a 24-bit image

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 03:28

well i saved it as a 24 in mspaint and now when i load it as a hightmap into l3dt it shows me just figures in different colors not black and white and it is far from how my higtmap bmp looks like.

Atorpy · Post by **Atorpy** » 07 Jul 2006, 03:39

'hello,

Buggi wrote: Not sure when is better.... try 8bpp, you'll get "banding" in the image, but it may be the only thing compatible with the conversion pipeline.

You'll always get banding from an image made in the GIMP because it only supports 8 bits/channel in memory.

Buggi wrote: well i saved it as a 24 in mspaint and now when i load it as a hightmap into l3dt it shows me just figures in different colors not black and white and it is far from how my higtmap bmp looks like.

Did you use 'File->Import->Heightfield'? If so, can you please post a screenshot of the 'figures in different colors'?

Cheers,
Aaron.

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 04:25

what l3dt did to it after i imported hightmap.
wtf?????!!!!!

they wont let me post hyperlinks so copy this link and add img144.imageshack.us/content.php?page=done&l=img144/31 in the begining

68/hereitis0xe.

and this in the end png

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 04:27

img144.imageshack.us/content.php?page=done&l=img144/3168/hereitis0xe.png

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 04:27

sorry its jusr 5 oclock in the morning where i live and im a bit tired now...

mufdvr222 · Post by **mufdvr222** » 07 Jul 2006, 06:30

Mate,, upload your heightmap so I can have a look.

Forboding Angel · Post by **Forboding Angel** » 07 Jul 2006, 07:55

same, upload the heightmap.

Can't post links? just take the www off of the front.

Edit:

Ok, well one of the problems you are having is the fact that l3dt sees your image as a color image, another is that the bit depth is all fucked up.

DO this, to save us all some time... go to http://www.irfanview.com (excelent small ametuer image manipulation too, it's also free) and download that. Use irfanview to convert to greyscale, then save, then import into l3dt.

That should fix you up. BTW gimp sucks ass for doing anything besides scaling images (it's VERY GOOD at scaling images, photoshop can't touch the Gimp's scale routine).

A good idea would be to either draw your heightmaps in l3dt using the design pencil, or drawing very rough outlines in MSPaint then importing into l3dt as a design map, set the sliders, then generate the heightmap. L3dt will actually draw a new heightmap in 32bit goodness from the simple sketch you provided. It's quite nifty

Forboding Angel · Post by **Forboding Angel** » 07 Jul 2006, 08:04

HAHAHAHA I just had a thought. You could simply upload your images to imageshack and then redownload them because imageshack changes the format. It might fix your little issue.

zorbawic · Post by **zorbawic** » 07 Jul 2006, 10:23

Cloud_Flakker wrote:well i saved it as a 24 in mspaint and now when i load it as a hightmap into l3dt it shows me just figures in different colors not black and white and it is far from how my higtmap bmp looks like.

Theres something probably with L3dt: i had the same problem with strata overlay - it seems that it disappears when changeing sundirection in light map in elevation below 50, Than when rendering a texture use light map and probably this will disappear

Wait: has this happened just after importing the height map or after making something with it ?

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 12:24

Thx all. ill try it..
i have another question.. to forboding angel actually cause i know for sure he is using photoshop, but if someone else knows the answer please write it down.
before i started using the gimp i tried making hightmaps in photoshop...
i chose greyscale 16bit.
the problem was the saving part.
when i tried sving there was no format that was compatible with either
the gimp or (most important) l3dt.
im using photoshop CS2 9.0.
Any suggestions?

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 12:32

OK.
iv converted it to greyscale in that little prog.
i tried it at 8bpp and 24.
the l3dt is still giving me similar results..
WTF????
maybe i should use terragen.
?
i donwloaded it but im not sure how to import an image and at what format must it be for terragen to accept it..

zorbawic · Post by **zorbawic** » 07 Jul 2006, 14:28

Cloud_Flakker wrote:greyscale

why are You using grayscale ? im also using Gimp and i save all my images as a normal coloured ones not grayscales and i dont have that problem - maybe thats the problem - try saving it a sa normal nongrayscale image

Atorpy · Post by **Atorpy** » 07 Jul 2006, 15:44

Hi Cloud Flakker,

Wow, that's bizarre. I changed image libraries in L3DT earlier this year, so there could be a new image-import bug that I├óÔé¼Ôäód not noticed before. Could you shoot me a copy of the original heightfield image so I can debug the program (aaron.torpy@yahoo.com)?

Cheers,
Aaron.

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 16:44

Sure Aaron.

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 16:49

can someone please answer about the photoshop saving format.

Atorpy · Post by **Atorpy** » 07 Jul 2006, 21:33

Hi Cloud_Flakker,

Export from Photoshop in RAW. When importing the RAW into L3DT, you'll need to click on the 'options' button in the import wizard, and set 'import->width' and 'import->height' to the correct values.

Oh, and for the sake of the other forum members, the problem with the heightfield was that L3DT wasn't loading 8-bit heightfield bitmaps correctly. I recommend everyone use PNG until the next update.

Cheers,
Aaron.

Cloud_Flakker · Post by **Cloud_Flakker** » 07 Jul 2006, 22:06

Ill do that.
Thx All i kinda solved the problem by myself actually....

Spring RTS Engine

A problem with a hightmap

A problem with a hightmap