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Hi,

I am working on a small heightmap-editor as side-project and wanted to use a 8-bit-memblock for faster drawing. The problem is, that it doesn't work.

So there arise several questions:

1. Is it even possible to use 8-bit memblocks for images? (I mean, I don't need anything else than one byte to store a heightmap, so why should I use more bytes than neccessary?)
2. If so, how is it possible to manipulate them?

When trying to draw something onto the image (by changing the memblock-data) nothing happens, it just stays black (even if I randomize the pixel-data of the memblock). If I paste the image with transparency it at fist stays black and as soon as I drew something it gets invisible.

When searching through the forum I just found threads concerning 32 or 16-bit-memblocks, so I hope it's possible somehow to use the 8-bit-variant, would eneasy my work a lot.. However, I'd really appreciate any kind of solution. Thanks.

Attached is a File I grabbed off some DB Related site - free source yada yada - has code for working with Matrix. Specificly for you - is the LOAD HEIGHTMAP function. NOW - it has the format for a 24bit Bitmap Load process - but I bet with a little effort - some googling - once you find the 8bit format online somewhere - you can make a loader like this one - and forget memblock conversion this or that - Just load the GFX and modify your "Terrain Heights Directly" OR Make a memblock - like an Array - and just load the thing - and access by read/write just bytes like you want