Irrlicht Engine

http://www.bundysoft.com/docs/doku.php?id=l3dt:about name: large 3D terrain rendering tecniques: D purpose: large worlds for video games editing tecniques: manual , or automatic generation (great) lightmap: fast heightmap editing: great undo: .. water: .yes export formats: ... import formats: ... n...

you need just to change UV.

the texture coordinates in the picture. it is simple if you know how to do that.
in your case this is simple

i think seriously that the hardware capabilities is evolving much more faster thant 3d artist creativity, and shader programmers creativity. opengl shading language 1.0 is not fully exploited but new hardware and shaders are coming and new tecnologies (unlimited detail with point cloud) permit to ma...

are you sure that alpha is handled the same way in irrlicht 1.4 and 1.7?

maybe in one is used 1-alpha as trasparency and in the other one is used alpha as trasparency.

just try to change the alpha of 1 model from
Alpha

to

255-Alpha and see what appens

In a particular way. will be usefull for all a mark for know the fastest way for loading data I.E. is faster in loading a zip archive with compressed bmp images? is faster a zip archive with uncompressed png/jpeg images? is faster a pk3 archive? wich is the overhead for cripted archives? is fastest ...

1) yuo need a mask and a shader that merge the mask and the picture...
in that case why don't use a pre-cutted image?

2) every part you want to cut is a separed gui element. just use the api to remove it from rendering.

just look up for eden terra forming or for shangrilla world editor. they are in developing but free.

just show a picture with a hole above/under the compass.

you can have a different picture for every resolution and load the needed or just resize every picture at runtime before showing it.

why don't just link in the wiki the posts with major infos?

Sure that's a good idea. But making an effort to the wiki is more time wasting than making a thread on the forum. I will seriously consider that idea anyway thanks.