MOLA Map Shader - Revision history

Redmaw: Updated Image filename description.

2021-03-24T04:38:35Z

Updated Image filename description.

Redmaw: Updated descriptions to Data set, Height multiplier, and Smooth interpolation.

2021-03-24T04:34:40Z

Updated descriptions to Data set, Height multiplier, and Smooth interpolation.

Redmaw: Added descriptions and example images for most settings. Smooth interpolation description pending.

2021-03-21T04:52:43Z

Added descriptions and example images for most settings. Smooth interpolation description pending.

JavaJones at 23:50, 3 June 2012

2012-06-03T23:50:05Z

JavaJones at 19:45, 1 June 2011

2011-06-01T19:45:45Z

127.0.0.1: jrfconvert import

2010-07-11T02:55:47Z

jrfconvert import

New page

[[Category:IMPORT]]
='''MOLA Map Shader'''=

[[Image:drex_module_153_image_0.png|485pxpx|MOLA Map Shader]]
__NOTOC__

← Older revision		Revision as of 04:38, 24 March 2021
Line 11:		Line 11:
	*'''Enable: '''When checked, the node is active and the settings below will affect the surface. When unchecked, the node is ignored.		*'''Enable: '''When checked, the node is active and the settings below will affect the surface. When unchecked, the node is ignored.

−	*'''Image filename:''' The MOLA image sequence assigned to this setting is used to displace the surface.	+	*'''Image filename:''' The MOLA image sequence assigned to this setting is used to displace the surface. You can choose any of the MOLA data set files, usually a IMG or LBL file, and Terragen will load all of the data and set the "Data set" option automatically.

@@ Line 14: / Line 14: @@
-*''' Data set: '''This pop-up menu has four options that should be set to the current resolution of the data set being used.  By default, Terragen automatically chooses the proper type when a file is first loaded via the “Image filename” setting.  Each data set increases the level of detail.
+*''' Data set: '''This pop-up menu has four options that allow you to conveniently switch between the different resolutions of the MOLA data sets when they reside in the same folder.  For example, if the MEGT016, MEGT032, MEGT064, and MEGT128 data sets are located in the same folder you can easily select which data set to use from the pop-up menu.  When the data sets are located in separate folders, then the pop-up menu option will automatically be set to the correct data resolution when one of the data files is chosen via the “Image filename” setting.
 <ul>
 [[File:Mola_01_DataSet_GUI.png|none|379px|The MOLA Data set options.]]
@@ Line 26: / Line 26: @@
-*'''Height multiplier:''' The value of this setting acts as a multiplier to the height data contained in the MOLA IMG file.  Increasing the value raises the height of the terrain features, while decreasing the value lowers them.
+*'''Height multiplier:''' The value of this setting acts as a multiplier to the height data contained in the MOLA IMG file.  Increasing the value raises the height of the terrain features, while decreasing the value lowers them.  To get realistic heights of the Martian topography, set the Height multiplier to “1” and the Planet’s “Radius” value to match that of Mars at its equator, which is 3,396,200 meters or “3.398e+06”.
 <ul>
 [[File:Mola_04_HeightMultiplier.jpg|none|800px|Increasing or decreasing the Height multiplier value raises or lowers the surface displacement.]]
@@ Line 32: / Line 32: @@
-*'''Smooth interpolation: '''
+*'''Smooth interpolation: '''This setting has been deprecated and it makes no difference whether the checkbox has been checked or not.  Terragen will smoothly interpolate values in-between the MOLA height data whether or not the checkbox has been checked.

← Older revision		Revision as of 04:52, 21 March 2021
Line 1:		Line 1:
−	[[~~Image~~:~~drex_module_153_image_0~~.png\|~~485pxpx~~\|MOLA Map Shader]]	+	[[File:Mola_00_GUI.png\|none\|470px\|MOLA Map Shader]]
		+
		+	== Overview ==
		+	The MOLA Map Shader is a specialized node designed to load Mars Orbital Laser Altimeter (MOLA) heightfield data of the planet Mars.
		+
		+
		+	''' Settings:'''
		+	<ul>
		+	*'''Name: '''This setting allows you to apply a descriptive name to the node, which can be helpful when using multiple MOLA shader nodes in a project.
		+
		+	*'''Enable: '''When checked, the node is active and the settings below will affect the surface. When unchecked, the node is ignored.
		+
		+	*'''Image filename:''' The MOLA image sequence assigned to this setting is used to displace the surface.
		+
		+
		+	*''' Data set: '''This pop-up menu has four options that should be set to the current resolution of the data set being used. By default, Terragen automatically chooses the proper type when a file is first loaded via the “Image filename” setting. Each data set increases the level of detail.
		+	<ul>
		+	[[File:Mola_01_DataSet_GUI.png\|none\|379px\|The MOLA Data set options.]]
		+	{\|
		+	\|-
		+	\| [[File:Mola_02_DataSets.jpg\|none\|800px\|The level of detail for the Mars surface increases for each option.]]
		+	\|-
		+	\| [[File:Mola_03_DataSets0001.jpg\|none\|800px\|The level of detail for the Mars surface increases for each option.]]
		+	\|}
		+	</ul>
		+
		+
		+	*'''Height multiplier:''' The value of this setting acts as a multiplier to the height data contained in the MOLA IMG file. Increasing the value raises the height of the terrain features, while decreasing the value lowers them.
		+	<ul>
		+	[[File:Mola_04_HeightMultiplier.jpg\|none\|800px\|Increasing or decreasing the Height multiplier value raises or lowers the surface displacement.]]
		+	</ul>
		+
		+
		+	*'''Smooth interpolation: '''
		+
		+
		+	*'''Mask by shader: ''' When checked, the shader or function nodes assigned to this setting act as a mask on the MOLA data. Values of 1, or white, have no effect, while values of 0, or black, mask out the MOLA data completely, returning the surface to its undisplaced state.
		+	<ul>
		+	{\|
		+	\|-
		+	\| [[File:Mola_05_MaskByShaderCloudFractal.jpg\|none\|400px\|The MOLA data masked by a Cloud fractal shader.]] \|\| [[File:Mola_06_MaskByShaderImageMap.jpg\|none\|400px\|The MOLA data masked by an Image map shader.]]
		+	\|}
		+	</ul>
		+
		+
		+	*'''Invert mask: ''' When checked, the shader or function nodes values assigned to the “Mask by shader” setting are inverted.
		+	<ul>
		+	{\|
		+	\|-
		+	\| [[File:Mola_07_InvertCloudFractal.jpg\|none\|400px\|The Cloud fractal shader node inverted and applied as a mask on the MOLA data.]] \|\| [[File:Mola_08_InvertImageMap.jpg\|none\|400px\|The Image map shader node inverted and applied as a mask on the MOLA data.]]
		+	\|}
		+	</ul>
		+	</ul>

−	~~'''Node Description and Purpose:''' The MOLA Map Shader is a specialized node designed to load Mars Orbital Laser Altimeter (MOLA) heightfield data of the planet Mars.~~


	[[Category:Displacement Shader]]		[[Category:Displacement Shader]]

@@ Line 1: / Line 1: @@
 [[Image:drex_module_153_image_0.png|485pxpx|MOLA Map Shader]]
-<!-- imported from file: module_153.html-->
+'''Node Description and Purpose:''' The MOLA Map Shader is a specialized node designed to load Mars Orbital Laser Altimeter (MOLA) heightfield data of the planet Mars.
 [[Category:Displacement Shader]]

← Older revision		Revision as of 19:45, 1 June 2011
Line 1:		Line 1:
−	[[~~Category~~:~~IMPORT]]~~	+	[[Image:drex_module_153_image_0.png\|485pxpx\|MOLA Map Shader]]
−	~~='''~~MOLA Map Shader~~'''=~~

−	~~[[Image:drex_module_153_image_0.png\|485pxpx\|MOLA Map Shader]]~~
−	~~__NOTOC__~~
	<!-- imported from file: module_153.html-->		<!-- imported from file: module_153.html-->
		+
		+	[[Category:Displacement Shader]]