Heightfield Smooth - Revision history

Redmaw: Fixed typo in HFSmooth_43_HFFractalDetail and tweaked layout of Overview paragraph.

2021-01-29T18:49:09Z

Fixed typo in HFSmooth_43_HFFractalDetail and tweaked layout of Overview paragraph.

Redmaw: Fixed label overlay on heightfield fractal detail example image.

2021-01-29T18:18:36Z

Fixed label overlay on heightfield fractal detail example image.

Redmaw: Updated description of Smooth radius setting. Removed one row of images in size example, relabeling images as well, and added two rows of images for heightfield resolution.

2021-01-27T22:40:36Z

Updated description of Smooth radius setting. Removed one row of images in size example, relabeling images as well, and added two rows of images for heightfield resolution.

Redmaw: Updated overview description, changing heightfield resolution example.

2021-01-27T01:06:21Z

Updated overview description, changing heightfield resolution example.

Redmaw: Updated descriptions for Overview and Smooth radius setting. Replaced example images.

2021-01-26T20:57:45Z

Updated descriptions for Overview and Smooth radius setting. Replaced example images.

Redmaw: Comment out overview section temporarily.

2021-01-21T00:51:45Z

Comment out overview section temporarily.

Redmaw: fix layout

2021-01-15T23:12:49Z

fix layout

Redmaw: Updated descriptions and added example images to all settings.

2021-01-15T23:10:45Z

Updated descriptions and added example images to all settings.

Jo at 02:27, 22 February 2012

2012-02-22T02:27:02Z

Jo at 02:26, 22 February 2012

2012-02-22T02:26:36Z

@@ Line 2: / Line 2: @@
 == Overview ==
-This node smooths a heightfield by averaging the sample points within the “Smooth radius” value. This value is defined in metres and in world space.  It is not dependent on the heightfield’s resolution, ensuring that the smoothing effect will be “similar” whether a heightfield's resolution is 1024 x 1024 or 8k.  Fractal detail can be added to the smoothed heightfield via the Heightfield’s Fractal Detail tab.
+This node smooths a heightfield by averaging the sample points within the “Smooth radius” value. This value is defined in metres and in world space.  It is not dependent on the heightfield’s resolution, ensuring that the smoothing effect will be “similar” whether a heightfield's resolution is 1024 x 1024 or 8k.
-[[File:HFSmooth_43_HFFractalDetail.jpg|none_800px|Fractal detail added to smoothed heightfield.]]

@@ Line 3: / Line 3: @@
 == Overview ==
 This node smooths a heightfield by averaging the sample points within the “Smooth radius” value. This value is defined in metres and in world space.  It is not dependent on the heightfield’s resolution, ensuring that the smoothing effect will be “similar” whether a heightfield's resolution is 1024 x 1024 or 8k.  Fractal detail can be added to the smoothed heightfield via the Heightfield’s Fractal Detail tab.
-[[File:HFSmooth_24HFFractalDetail_0001.jpg|none|800px|Fractal detail added to smoothed heightfield.]]
+[[File:HFSmooth_43_HFFractalDetail.jpg|none_800px|Fractal detail added to smoothed heightfield.]]

@@ Line 4: / Line 4: @@
 This node smooths a heightfield by averaging the sample points within the “Smooth radius” value. This value is defined in metres and in world space.  It is not dependent on the heightfield’s resolution, ensuring that the smoothing effect will be “similar” whether a heightfield's resolution is 1024 x 1024 or 8k.  Fractal detail can be added to the smoothed heightfield via the Heightfield’s Fractal Detail tab.
 [[File:HFSmooth_24HFFractalDetail_0001.jpg|none|800px|Fractal detail added to smoothed heightfield.]]
@@ Line 22: / Line 18: @@
 {|
 |-
-| [[File:HFSmooth_15_SizeInMetres512_SmoothRadiusOff.jpg|none|266px|Heightfield resolution 512 x 512.  Smooth radius = 0]] || [[File:HFSmooth_16_SizeInMetres512_SmoothRadius10.jpg|none|266px|Heightfield resolution 512 x 512.  Smooth radius = 10]] || [[File:HFSmooth_17_SizeInMetres512_SmoothRadius100.jpg|none|266px|Heightfield resolution 512 x 512.  Smooth radius = 100]]
+| [[File:HFSmooth_25_SizeInMetres500_SmoothRadius0.jpg|none|266px|Heightfield size 500 metres.  Smooth radius = 0. ]] || [[File:HFSmooth_26_SizeInMetres500_SmoothRadius10.jpg|none|266px|Heightfield size 500 metres.  Smooth radius = 10.]] || [[File:HFSmooth_27_SizeInMetres500_SmoothRadius100.jpg|none|266px|Heightfield size 500 metres.  Smooth radius = 100.]]
 |-
-| [[File:HFSmooth_18_SizeInMetres1024_SmoothRadiusOff.jpg|none|266px|Heightfield resolution 1024 x 1024.  Smooth radius = 0]] || [[File:HFSmooth_19_SizeInMetres1024_SmoothRadius10.jpg|none|266px|Heightfield resolution 1024 x 1024.  Smooth radius = 10]] || [[File:HFSmooth_20_SizeInMetres1024_SmoothRadius100.jpg|none|266px|Heightfield resolution 1024 x 1024.  Smooth radius = 100]]
+| [[File:HFSmooth_28_SizeInMetres4k_SmoothRadius0.jpg|none|266px|Heightfield size 4000 metres.  Smooth radius = 0.]] || [[File:HFSmooth_29_SizeInMetres4k_SmoothRadius10.jpg|none|266px|Heightfield size 4000 metres.  Smooth radius = 10.]] || [[File:HFSmooth_30_SizeInMetres4k_SmoothRadius100.jpg|none|266px|Heightfield size 4000 metres.  Smooth radius = 100.]]
 |-
-| [[File:HFSmooth_21_SizeInMetres3840_SmoothRadiusOff.jpg|none|266px|Heightfield resolution 3840 x 3840.  Smooth radius = 0]] || [[File:HFSmooth_22_SizeInMetres3840_SmoothRadius10.jpg|none|266px|Heightfield resolution 3840 x 3840.  Smooth radius = 100]] || [[File:HFSmooth_23_SizeInMetres3840_SmoothRadius100.jpg|none|266px|Heightfield resolution 3840 x 3840.  Smooth radius = 100]]
+| [[File:HFSmooth_37_NumPnts64_SmoothRadius0.jpg|none|266px|Heightfield resolution 64 x 64. Smooth radius = 0.]] || [[File:HFSmooth_38_NumPnts64_SmoothRadius10.jpg|none|266px|Heightfield resolution 64 x 64. Smooth radius = 10.]] || [[File:HFSmooth_39_NumPnts64_SmoothRadius100.jpg|none|266px|Heightfield resolution 64 x 64. Smooth radius = 100.]]
 |}
 </ul>
 [[Category: Heightfield Operators]]

@@ Line 2: / Line 2: @@
 == Overview ==
-This node smooths a heightfield by averaging the sample points within the “Smooth radius” value. This value is defined in metres and in world space.  It is not dependent on the heightfield’s resolution, ensuring that the smoothing effect will be “similar” whether a terrain is 10,000 x 10,000 meters or 100,000 x 100,000 metres.  Fractal detail can be added to the smoothed heightfield via the Heightfield’s Fractal Detail tab.
+This node smooths a heightfield by averaging the sample points within the “Smooth radius” value. This value is defined in metres and in world space.  It is not dependent on the heightfield’s resolution, ensuring that the smoothing effect will be “similar” whether a heightfield's resolution is 1024 x 1024 or 8k.  Fractal detail can be added to the smoothed heightfield via the Heightfield’s Fractal Detail tab.
 [[File:HFSmooth_24HFFractalDetail_0001.jpg|none|800px|Fractal detail added to smoothed heightfield.]]
 <!-- {|

@@ Line 2: / Line 2: @@
 == Overview ==
-<!-- This node smooths a heightfield by averaging a certain number of points next to a given sample point.  A value of 0 in the “Smooth radius” setting results in no smoothing, while a value of 10 would average the given sample point with 10 of its closest neighbors.
+This node smooths a heightfield by averaging the sample points within the “Smooth radius” value. This value is defined in metres and in world space.  It is not dependent on the heightfield’s resolution, ensuring that the smoothing effect will be “similar” whether a terrain is 10,000 x 10,000 meters or 100,000 x 100,000 metres.  Fractal detail can be added to the smoothed heightfield via the Heightfield’s Fractal Detail tab.
+[[File:HFSmooth_24HFFractalDetail_0001.jpg|none|800px|Fractal detail added to smoothed heightfield.]]
-When setting the “Smooth radius” value be aware of the heightfield’s resolution, that is the number of points in a TER file or the number of pixels in an image file, because the more points contained within a heightfield, the less the distance that separates them.  Therefore a value of 10 smooths a larger area when the heightfield’s resolution is 10 x 10 than when the resolution is 1000 x 1000. -->
+<!-- {|
 |-
 | [[File:HFSmooth_11_NumPnts10x10.jpg|none|266px|Heightfield resolution 10 x 10.]] || [[File:HFSmooth_12_NumPnts100x100.jpg|none|266px|Heightfield resolution 100 x 100.]] || [[File:HFSmooth_13_NumPnts1000x1000.jpg|none|266px|Heightfield resolution 1000 x 1000.]]
-|}
+|} -->
@@ Line 18: / Line 17: @@
-* '''Smooth radius: ''' Sets the number of nearest points to include in evaluating the smoothness of the sample point.  The higher the value the smoother the terrain.
+* '''Smooth radius: ''' Sets the maximum distance in metres from the sample point being smoothed. The sample points within this radius are averaged together forming the final smoothed value.  The smoothing process is similar to a gaussian blur falloff; that is, sample points closer to the point being smoothed have greater influence on the smoothing result than points further away.
 <ul>
 {|
 |-
-| [[File:HFSmooth_08_NumPnts10_SmoothRadius0.jpg|none|266px|Heightfield resolution 10 x 10, Smooth radius = 0]] || [[File:HFSmooth_09_NumPnts10_SmoothRadius2.jpg|none|266px|Heightfield resolution 10 x 10, Smooth radius = 2]] || [[File:HFSmooth_10_NumPnts10_SmoothRadius10.jpg|none|266px|Heightfield resolution 10 x 10, Smooth radius = 10]]
+| [[File:HFSmooth_15_SizeInMetres512_SmoothRadiusOff.jpg|none|266px|Heightfield resolution 512 x 512.  Smooth radius = 0]] || [[File:HFSmooth_16_SizeInMetres512_SmoothRadius10.jpg|none|266px|Heightfield resolution 512 x 512.  Smooth radius = 10]] || [[File:HFSmooth_17_SizeInMetres512_SmoothRadius100.jpg|none|266px|Heightfield resolution 512 x 512.  Smooth radius = 100]]
 |-
-| [[File:HFSmooth_05_NumPnts100_SmoothRadius0.jpg|none|266px|Heightfield resolution 100 x 100, Smooth radius = 0]] || [[File:HFSmooth_06_NumPnts100_SmoothRadius2.jpg|none|266px|Heightfield resolution 100 x 100, Smooth radius = 2]] || [[File:HFSmooth_07_NumPnts100_SmoothRadius10.jpg|none|266px|Heightfield resolution 100 x 100, Smooth radius = 10]]
+| [[File:HFSmooth_18_SizeInMetres1024_SmoothRadiusOff.jpg|none|266px|Heightfield resolution 1024 x 1024.  Smooth radius = 0]] || [[File:HFSmooth_19_SizeInMetres1024_SmoothRadius10.jpg|none|266px|Heightfield resolution 1024 x 1024.  Smooth radius = 10]] || [[File:HFSmooth_20_SizeInMetres1024_SmoothRadius100.jpg|none|266px|Heightfield resolution 1024 x 1024.  Smooth radius = 100]]
 |-
-| [[File:HFSmooth_02_NumPnts1000_SmoothRadius0.jpg|none|266px|Heightfield resolution 1000 x 1000, Smooth radius = 0]] || [[File:HFSmooth_03_NumPnts1000_SmoothRadius2.jpg|none|266px|Heightfield resolution 1000 x 1000, Smooth radius = 2]] || [[File:HFSmooth_04_NumPnts1000_SmoothRadius10.jpg|none|266px|Heightfield resolution 1000 x 1000, Smooth radius = 10]]
+| [[File:HFSmooth_21_SizeInMetres3840_SmoothRadiusOff.jpg|none|266px|Heightfield resolution 3840 x 3840.  Smooth radius = 0]] || [[File:HFSmooth_22_SizeInMetres3840_SmoothRadius10.jpg|none|266px|Heightfield resolution 3840 x 3840.  Smooth radius = 100]] || [[File:HFSmooth_23_SizeInMetres3840_SmoothRadius100.jpg|none|266px|Heightfield resolution 3840 x 3840.  Smooth radius = 100]]
 |}
 </ul>
 </ul>

@@ Line 1: / Line 1: @@
-[[Image:drex_module_189_image_0.png|485pxpx|Heightfield Smooth]]
+[[File:HF_Smooth_00_GUI.png|none|470px|Heightfield Smooth]]
-'''Node description and purpose:'''<br />
+== Overview ==
-The Heightfield Smooth node can smooth a heightfield. Here is an movie showing the effect of the node as the '''Smooth Radius''' setting changes from 0 to 1000:
+This node smooths a heightfield by averaging a certain number of points next to a given sample point.  A value of 0 in the “Smooth radius” setting results in no smoothing, while a value of 10 would average the given sample point with 10 of its closest neighbors.
-<mediaplayer>file:hfsmooth_radius.mp4</mediaplayer>
+When setting the “Smooth radius” value be aware of the heightfield’s resolution, that is the number of points in a TER file or the number of pixels in an image file, because the more points contained within a heightfield, the less the distance that separates them.  Therefore a value of 10 smooths a larger area when the heightfield’s resolution is 10 x 10 than when the resolution is 1000 x 1000.
-'''Settings:'''<br />
+<ul>
-* '''Smooth Radius: ''' This is the size of the area smoothed by the node. As the value increases the smoother the heightfield will become. 0 performs no smoothing. A setting of 10 will smooth a heighfield point using the 10 nearest points all the way around that point.
+* '''Name: ''' This setting allows you to apply a descriptive name to the node, which can be helpful when using multiple Heightfield smooth nodes in a project.
 [[Category: Heightfield Operators]]