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Diffstat (limited to 'doc/classes/HeightMapShape3D.xml')
| -rw-r--r-- | doc/classes/HeightMapShape3D.xml | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/classes/HeightMapShape3D.xml b/doc/classes/HeightMapShape3D.xml index ba79cbc89a..7e3055b34e 100644 --- a/doc/classes/HeightMapShape3D.xml +++ b/doc/classes/HeightMapShape3D.xml @@ -6,6 +6,19 @@ <description> 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. [b]Performance:[/b] [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: + [codeblocks] + [gdscript] + var heightmap_texture: Texture = ResourceLoader.load("res://heightmap_image.exr") + var heightmap_image: Image = heightmap_texture.get_image() + heightmap_image.convert(Image.FORMAT_RF) + + var height_min: float = 0.0 + var height_max: float = 10.0 + + update_map_data_from_image(heightmap_image, height_min, height_max) + [/gdscript] + [/codeblocks] </description> <tutorials> </tutorials> @@ -22,6 +35,17 @@ Returns the smallest height value found in [member map_data]. Recalculates only when [member map_data] changes. </description> </method> + <method name="update_map_data_from_image"> + <return type="void" /> + <param index="0" name="image" type="Image" /> + <param index="1" name="height_min" type="float" /> + <param index="2" name="height_max" type="float" /> + <description> + Updates [member map_data] with data read from an [Image] reference. Automatically resizes heightmap [member map_width] and [member map_depth] to fit the full image width and height. + The image needs to be in either [constant Image.FORMAT_RF] (32 bit), [constant Image.FORMAT_RH] (16 bit), or [constant Image.FORMAT_R8] (8 bit). + Each image pixel is read in as a float on the range from [code]0.0[/code] (black pixel) to [code]1.0[/code] (white pixel). This range value gets remapped to [param height_min] and [param height_max] to form the final height value. + </description> + </method> </methods> <members> <member name="map_data" type="PackedFloat32Array" setter="set_map_data" getter="get_map_data" default="PackedFloat32Array(0, 0, 0, 0)"> |