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carla/Docs/tuto_M_custom_buildings.md

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Corkyw10/maps documentation (#4233) * Restructured maps docs layout and fixed affected URLs * Updated RoadRunner map generation doc. Includes link for Leaderboard license * Updated package ingestion doc so it is located in the main navigation bar. All relative links have been fixed. * Moved customization information to separate tutorial. Added next steps * Moved manual preparation of json package to separate tutorial. * Added how to add traffic light and signs documentation. Updated nav with approriate page name. Cropped photo to show an updated view of UE editor * Redraft of the weather and landscape tutorial * Updated tutorial for using the road painter. Typo fix in other tutorials for map customization * Added tutorial to add levels to maps * Added images for maps tutorials * Minor syntax changes to manual package prep * Full drafts of map documentation * Added images and corrected names for building shaders * [NO_BUILD] First draft of Large Maps docs (#4396) * Drafting large map docs * Changed name of spawn_npc script * Syntax changes * Corrected hybrid mode dormant behavior, added code for setting ego vehicle, removed expensive note about map calls * Added section for roadrunner large maps * Added images to roadrunner docs and rearranged nav bar and titles. * Added corrections to import of large maps and standard map nomenclature Co-authored-by: bernat <bernatx@gmail.com> * Made corrections to spawn points and additional fbx folder information * Fixed mentions of normal maps to standard maps Co-authored-by: bernat <bernatx@gmail.com>
2021-07-30 17:20:23 +08:00
# Customizing Maps: Procedural Buildings
- [__Procedural buildings__](#add-serial-meshes)
- [Building structure](#building-structure)
- [Structure modifications](#structure-modifications)
- [__Next steps__](#next-steps)
---
## Procedural buildings
The procedural building tool allows you to create rectangular buildings composed of different levels. Each level is built using a configurable array of meshes or a single blueprint. If an array of meshes is used, each mesh will be repeated along the level at random to provide variety. The meshes are created once and each repition will be an instance of that mesh. This improves performance of your map.
### Building structure
To get started on your building:
1. In the _Content Browser_ of the Unreal Engine editor, navigate to `Content/Carla/Blueprints/LevelDesign`.
2. Drag the `BP_Procedural_Building` into the scene.
In the _Details_ panel, you will see all the options available to customize your building. Every time a change is made here, the building will disappear from the scene view, as the key meshes are updated. Click on _Create Building_ to see the new result, or enable _Create automatically_ to avoid having to repeat this step.
The key meshes are pieces of the building's structure. They fall into four categories:
- __Base:__ The ground floor.
- __Body:__ The middle floors.
- __Top:__ The highest floor.
- __Roof:__ The roof that covers the top floor.
For each of them, except the __Roof__, there is a mesh to fill the center of the floor, and a __Corner__ mesh that will be placed on the sides of the floor. The following picture represents the global structure.
![bp_procedural_building_visual](../img/map_customization/BP_Procedural_Building_Visual.jpg)
<div style="text-align: right"><i>Visualization of the building structure.</i></div>
The __Base parameters__ set the dimensions.
- __Num Floors:__ Floors of the building. Repetitions of the __Body__ meshes.
- __Length X and Length Y:__ Length and breadth of the building. Repetitions of the central meshes for each side of the building.
![bp_procedural_building_full](../img/map_customization/BP_Procedural_Building_Full.jpg)
<div style="text-align: right"><i>Example of BP_Procedural_Building.</i></div>
### Structure modifications
There are some additional options to modify the general structure of the building.
- __Disable corners:__ If selected, no corner meshes will be used.
- __Use full blocks:__ If selected, the structure of the building will use only one mesh per floor. No corners nor repetitions will appear in each floor.
- __Doors:__ Meshes that appear in the ground floor, right in front of the central meshes. The amount of doors and their location can be set. `0` is the initial position, `1` the next base repetition, and so on.
- __Walls:__ Meshes that substitute one or more sides of the building. For example, a plane mesh can be used to paint one side of the building.
![bp_procedural_building_extras](../img/map_customization/BP_Procedural_Building_Extras.jpg)
<div style="text-align: right"><i>On the left, a building with no cornes and one door. <br> On the right, a building with a wall applied to one side of the building. The wall is a texture with no fire escape.</i></div>
---
## Next steps
Continue customizing your map using the tools and guides below:
- [Implement sub-levels in your map.](tuto_M_custom_layers.md)
- [Add and configure traffic lights and signs.](tuto_M_custom_add_tl.md)
- [Customize the road with the road painter tool.](tuto_M_custom_road_painter.md)
- [Customize the weather](tuto_M_custom_weather_landscape.md#weather-customization)
- [Customize the landscape with serial meshes.](tuto_M_custom_weather_landscape.md#add-serial-meshes)
Once you have finished with the customization, you can [generate the pedestrian navigation information](tuto_M_generate_pedestrian_navigation.md).
---
If you have any questions about the process, then you can ask in the [forum](https://github.com/carla-simulator/carla/discussions).
<div class="build-buttons">
<p>
<a href="https://github.com/carla-simulator/carla/discussions" target="_blank" class="btn btn-neutral" title="Go to the CARLA forum">
CARLA forum</a>
</p>
</div>