Render with vertical exaggeration

[monks]

Johannes, is there any chance of including the function to vertically exaggerate the terrain on render? If you are working in 'absolute' mode, then it can be difficult to see the effect on the terrain without making a few lighting adjustments. A faster solution would be to have a vertical exaggerate option.

monks

[cajomi]

You can change the terrain height before rendering, and the render takes the new height.

[monks]

The problem with this is that if you alter the terrain height, all of the selectors by height no longer work. I found this out because I was trying to alter the terrain height at render time in order to see things more clearly. Another idea: perhaps a rescaling of selectors by height to match the altered terrain? This way you could tinker with the terrain height without any worries.

monks

[monks]

-also, if you then set the 'selectors by height' back to the original settings, they no longer show up.

//you can recreate them by pressing Create for each one though.

monks

[cajomi]

That is not completly right:
If you do a render, then change the height of the terrain and render again, the position of the height layer changes according to the terrain changing.
If you now change something to the shader, GeoControl recalculates the shader, and then the height is new calculated with the setting of the height slider, and the height of the selector setting does not change, if the terrain height is changed.

I will see, whether I implement such an autochange, but it is timeintesnive, it also influences the slope and the roughness, so I must see, whether I have the time for it.

[monks]

I think there may be a way of altering the terrain height without affecting the Selections. If you change the horizontal scale rather than the vertical scale, you can essentially acheive the same change. For each doubling of vertical height required, halve the horizontal scale. I've not checked this with the selections but I'm hoping this works.
I still think that a render settings would be much better because selections take quite a bit to set up.

monks

[cajomi]

I absolutley do not know only one renderer, where changing the height of a terrain belongs to the rendersettings. But on the other, I why not a span slider, like it was in version 1.

What also would be possible: to define the heigths always based on a relative position. So a height selection of 1500 in a 3000 m high terrain would be interpreted as 50%.
This was one thing, that made the work with terragen so uncomfortable. Every change of the units, and you had to rebuild als shaders.
I will do that in one of the next builds.