https://github.com/takana671/terrainwithhole

Making terrain having hole
https://github.com/takana671/terrainwithhole

geomipterrain heightmap panda3d python3

Last synced: 5 days ago
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Making terrain having hole

• Host: GitHub
• URL: https://github.com/takana671/terrainwithhole
• Owner: taKana671
• Created: 2024-11-04T13:27:27.000Z (3 months ago)
• Default Branch: main
• Last Pushed: 2025-01-02T05:48:41.000Z (about 1 month ago)
• Last Synced: 2025-01-02T06:40:48.906Z (about 1 month ago)
• Topics: geomipterrain, heightmap, panda3d, python3
• Language: Python
• Homepage:
• Size: 12 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# TerrainWithHole

This repository was made to learn how to make hole in terrain.

I tried two methods. The first is to partly remove geometry data from terrain by using memoryview. 

The second is to draw a shape on a hightmap by OpenCV, make the shape transparent, and use 'discard' in a shader, which was inspired by the panda3D community site "https://discourse.panda3d.org/". 

The first way does not need to use 'discard' in shaders.

And made it possible for the character to go through the hole by embedding a plane model under ground near the hole, and ignoring the collision between the character and terrain if the embedded plane model is detected by ray cast. 

https://github.com/user-attachments/assets/c0bf91fe-2344-4a0d-bcf1-ba6def7ecaa2

hole made by removing geometry data

![demo](https://github.com/user-attachments/assets/71ecf7f0-f992-4eee-a41b-67349c005863)

hole made by using heightmap

# Requirements

* Panda3D 1.10.14

* numpy 2.1.2

  

# Environment

* Python 3.11

* Windows11

# Usage

* Execute a command below on your command line.

```

>>>python terrain_with_hole.py

```

# Controls:

* Press [Esc] to quit.

* Press [up arrow] key to go foward.

* Press [left arrow] key to turn left.

* Press [right arrow] key to turn right.

* Press [down arrow] key to go back.

* Press [ D ] key to toggle debug ON and OFF.