Outdoor background - Design and model part 4(wall)

 For the wall of the city, I tried three ways to build it:

The first trial is to circulate some greeble pillar around the city, however, it looks to chaotic and messy. So, I did not choose it.

The second trial is to use a valley terrain to wrap around the city. But it also did not look good.

At last, I gave up on using procedural method to generate the wall. I decided to use the traditional way which is to draw design map and build the model by topology. The design of the wall is mainly used as signal towers and ventilation systems.

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