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A 3D heightmap shape, intended for use in physics. Usually used to provide a shape for a CollisionShape3D. This is useful for terrain, but it is limited as overhangs (such as caves) cannot be stored. Holes in a HeightMapShape3D are created by assigning very low values to points in the desired area.
Performance: HeightMapShape3D is faster to check collisions against than ConcavePolygonShape3D, but it is significantly slower than primitive shapes like BoxShape3D.
A heightmap collision shape can also be build by using an Image reference:
Height map data. The array's size must be equal to map_width multiplied by map_depth.
Note: The returned array is copied and any changes to it will not update the original property value. See PackedFloat32Array for more details.
Number of vertices in the depth of the height map. Changing this will resize the map_data.
Number of vertices in the width of the height map. Changing this will resize the map_data.
Returns the largest height value found in map_data. Recalculates only when map_data changes.
Returns the smallest height value found in map_data. Recalculates only when map_data changes.
Updates map_data with data read from an Image reference. Automatically resizes heightmap map_width and map_depth to fit the full image width and height.
The image needs to be in either Image.FORMAT_RF (32 bit), Image.FORMAT_RH (16 bit), or Image.FORMAT_R8 (8 bit).
Each image pixel is read in as a float on the range from 0.0 (black pixel) to 1.0 (white pixel). This range value gets remapped to height_min and height_max to form the final height value.
