Yes, I'm pretty sure. You may do what you want, if you like it keep it but these jaggs really are the edges of the quadrangulated terrain geometry. Erm, yes, sorry that I find this a bit crappy...I should explain that this is the reason why I find the whole Terragen a bit crappy... since I dicovered Mojoworld wich really blew my mind. A few words on this prog: it constructs a whole planet out of various fractals with quasi-unlimited detail and adds displacement (not only bumpmaps), but i's a bit more expensive and A LOT more complex. Even Terragens maximum quad count is faaaar below Mojoworlds resolution. Terragen2 is something like Mojoworld I think but it's surely not that cool.
Hope I can help you a bit with these renders (I never really got into bumps and background - shame on me
):
- highest or nearly highest terrain resolution - I think there are still some of those jaggs visible
- highest resolution and bigger, smoother features - no jaggs
- a part of your image (hope you don't mind) - can you see how huge your quads are? 1: look at this shape 2: this is the edge of one quad! (between the arrows) 3: hua, all these sharp jaggs are edges and corners of terrain quads
The problem is, that with a steeper (or more jaggy) terrain, the likelyhood of unwanted strong jaggs - due to a lack of terrain resolution - increases. This even troubles Mojoworld, but this prog overcomes it by automatically adding detail until pixel-level detail is reached. However, this greatly increases the rendertime for steep terrains.
In Terragen you'll have to find the balance between terrain steepness/natural jaggedness and terrain resolution. For high-res terrains you should have enough RAM and MHz because this can be a lot slower to render.
I haven't used Terragen for quite some time, the major things I remember which are different in the full version are the terrain size (up to 4000 x 4000 or something) and a much better anti-aliasing option.
At the end of all: thehe, if you like the jaggs, keep them - I'm not sure if those can be achieved with the fractal terrain function in Terragen the way you like it...I don't think so...if you are afraid that other Tgenners may find find this crappy (hehe, like I do, but never mind
)...well, hehe, do what makes you happy...