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Humunculus

Loading a .tga file in java to use as....

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Hey everyone. Ok, i don't know if this subject has been addressed again or anything, or if i should post it in the java-related part of the forums but still any help would be great. To the point.... I am currently working on java with JOGL API for my project and i am focused on terrain generation. I have found sources (books, net) talking about generating a terrain using a heightmap. Usually proposing to load data from a .tga image (though i suppose any grayscale image file or bitmap would do?) and use them to produce the heights for your terrain. Still I am completely clueless on how to load a .tga file correctly in java and how to proceed. Some sources i found on the net are doing the procedure in C++ but i guess my knowledge is not enough to either fully understand the procedure and use it in java. I know its a big subject but any help (sources to study from or any example or guideline) would be very appreciated. Thanks in advance for any help.

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If you're struggling to find resources, this article may help.

I wouldn't just copy this solution though, (it's only meant to be an example) but it should get you started.

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My advice would be to find an image-loading library that lets you load a file into a buffer of memory that you can read back from.

These are common in C/C++, and I'd bet they are not that rare in Java.

Basically, avoid writing your own image loading code -- somebody else has already done it, and probably did it better than you would. :)

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ImageIO is the usual way to load images, but IIRC it doesn't support .tga files. If you don't specifically need tga I'd switch to png (which is also non-lossy compressed, and can be loaded via ImageIO).

If you were using LWJGL then you could use DevIL, which supports pretty much every graphics format known to man (including tga).

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