Visualise Tex Coords - Revision history

Redmaw: Added Fun with Visualise Tex Coords section

2022-04-22T03:01:43Z

Added Fun with Visualise Tex Coords section

Redmaw: Updated overview, description and example images.

2021-07-01T03:04:43Z

Updated overview, description and example images.

← Older revision		Revision as of 03:04, 1 July 2021
Line 2:		Line 2:

	== Overview ==		== Overview ==
	~~The Visualise tex coords shader gives an RGB representation~~ of the ~~3D vector~~ of ~~the~~ texture coordinates~~. The R value of~~ the colour is the ~~X component, G is Y, and B is Z~~. ~~The texture coordinates are remapped into the visible range 0 to 1.~~		In order to apply textures to 3D objects and the terrain, the vertices of a 3D object or the sample points in a terrain make use of texture coordinates which instructs the shader how to colour the given point.

	UV coordinates ~~from imported geometry usually~~ range ~~from~~ 0 to 1 ~~and only occupy~~ X ~~and~~ Y, ~~therefore blue~~ is ~~usually 0~~. ~~But if applied to terrain~~ or ~~other procedural objects, tex coords are XYZ~~. ~~There is a repeat option for~~ the ~~texture coordinates because they are~~ not ~~limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range~~.		The Visualise tex coords shader outputs an RGB representation of the 3D vector of the texture coordinates, remapping them into the visible range of 0 to 1. In this colour representation the R value is the X component, the G value is the Y, and the B value is the Z. The shader can output this information as diffuse or luminosity. Also note that the Get Position in Texture function can provide the same information, but not as luminosity.

			For terrains, the texture coordinates are calculated via a Compute Terrain node or the Tex Coords from XYZ node which return the X,Y and Z position in world space for a given sample point. World space starts at the origin of the project at 0,0,0 and by default is scaled to 1 metre. You can increase the scale by applying a Transform Input node or Transform Merge node after the Visualise Tex Coords node and increasing its XYZ scale values.

	'''Settings: '''		{\|
			\|-
			\| [[File:VisTexCoord_28_Terrain_Luminous.jpg\|none\|400px\|Visualise tex coords applied to terrain.]] \|\| [[File:VisTexCoord_29_NodeNetwork_Transform.jpg\|none\|400px\|The Transform Merge node can be used to scale the Visualise tex coords scale, which defaults to 1 metre x 1 metre.]]
			\|}

			Imported 3D geometry makes use of the object’s UV coordinates which can be formatted in UV or UDIM layouts. The X and Y position for each vertex synchronize to the texture map providing the colour information. Typically, the UV coordinates for the bottom left corner are 0,0 and the top right corner are 1,1. UDIM layouts provide a way to offset vertex coordinates, by shifting them to a new 0 to 1 space. This provides a way in which to apply separate texture maps, with various resolutions, to specific surfaces on the object; in other words, you can assign higher resolution texture maps to the areas that require more texture data or use smaller texture maps for areas not often seen.

			{\|
			\|-
			\| [[File:VisTexCoord_31_OnUVObj.jpg\|none\|800px\|Example of workflow using UV layout.]]
			\|-
			\| [[File:VisTexCoord_32_OnUDIMObj.jpg\|none\|800px\|Example of workflow using UDIM layout.]]
			\|}

			Terragen 4 Professional can save the raw texture coordinate data for a rendered frame via its Render Layer feature by enabling the Surface Position checkbox under the Render Elements tab. This render element can be useful for post processing effects and adjustments to the beauty pass. This does not require a Visualise tex coords node within a project.

			[[File:VisTexCoord_30_RenderElements_GUI.png\|none\|470px\|Render Elements tab]]


			'''Settings:'''
	<ul>		<ul>

			*'''Name:''' This setting allows you to apply a descriptive name to the node, which can be helpful when using multiple Visualise tex coords nodes in a project.

	*'''Name: ''' This setting allows you to apply a descriptive name to the node, which can be helpful when using multiple Visualise tex coords 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.

	*'''Enable:''' When checked, the node is active and the settings below will affect the surface. When unchecked, the node is ignored.

	* '''Diffuse:''' When checked, the surface of the object or terrain is treated as diffuse. The lights within the project will illuminate it according to their position and rotation, and if “Do shadows” is enabled in the Renderer, shadows cast by these light sources will be visible on the surface.		*'''Diffuse:''' When checked, the surface of the object or terrain is treated as a diffuse surface.
	<ul>		<ul>
	{\|		{\|
	\|-		\|-
	\| [[File:~~VisTexCoord_11_Cube_Diffuse~~.jpg\|none\|~~266px~~\|~~The~~ Visualise tex coords ~~node~~ applied to ground and uv mapped cube object. Enable unchecked.]] \|\| [[File:VisTexCoord_12_Cube_DiffuseOn.jpg\|none\|266px\|The Visualise tex coords node applied to ground and uv mapped cube object. Enable checked.]] \|\|		\| [[File:VisTexCoord_35_Terrain_Diffuse.jpg\|none\|400px\|Diffuse setting enabled in the Visualise tex coords applied to terrain.]] \|\| [[File:VisTexCoord_33_DiffuseOn.jpg\|none\|400px\|Diffuse setting enabled in the Visualise tex coordinates shader of the UV Cube object.]]
	\|-
	\|[[File:~~VisTexCoord_13_Cube_DiffuseRed~~.jpg\|none\|~~266px~~\|~~The red channel or X axis of the ground and uv mapped cube object with the Visualise tex coords node~~ enabled~~.]] \|\| [[File:VisTexCoord_14_Cube_DiffuseGreen.jpg\|none\|266px\|The green channel or Y axis of the ground and uv mapped cube object with~~ the Visualise tex ~~coords node enabled.]] \|\| [[File:VisTexCoord_15_Cube_DiffuseBlue.jpg\|none\|266px\|The blue channel or Z axis~~ of the ~~ground and uv mapped cube~~ object ~~with the Visualise tex coords node enabled.]]~~
	\|-
	\| [[File:VisTexCoord_01_DiffuseOff.jpg\|none\|266px\|The Visualise tex coords node applied to procedural terrain. Enable unchecked.]] \|\| [[File:VisTexCoord_02_DiffuseOn.jpg\|none\|266px\|The Visualise tex coords node applied to procedural terrain. Enable checked.]] \|\|
	\|-
	\| [[File:VisTexCoord_03_DiffuseRed.jpg\|none\|266px\|Texture coordinates along the X axis are remapped between 0 and 1 in the Red channel.]] \|\| [[File:VisTexCoord_04_DiffuseGreen.jpg\|none\|266px\|Texture coordinates along the Y axis are remapped between 0 and 1 in the Green channel.]] \|\| [[File:VisTexCoord_05_DiffuseBlue.jpg\|none\|266px\|Texture coordinates along the Z axis are remapped between 0 and 1 in the Blue channel.]]
	\|}		\|}
	</ul>		</ul>
			*'''Luminous:''' When checked, the surface of the object or terrain is treated as fully luminous.

	*'''Luminous:''' When checked, the surface of the object or terrain is treated as fully luminous. ~~The lights within the project do not affect the surface.~~
	<ul>		<ul>
	{\|		{\|
	\|-		\|-
	\| [[File:~~VisTexCoord_16_Cube_LuminousOff~~.jpg\|none\|~~266px~~\|~~The~~ Visualise tex coords ~~node~~ applied to ~~ground and uv mapped cube object. Enable unchecked~~.]] \|\| [[File:~~VisTexCoord_17_Cube_LuminousOn~~.jpg\|none\|~~266px~~\|~~The Visualise tex coords node applied to ground and uv mapped cube object. Enable checked.]] \|\|~~		\| [[File:VisTexCoord_28_Terrain_Luminous.jpg\|none\|400px\|Luminous setting enabled in the Visualise tex coords applied to terrain.]] \|\| [[File:VisTexCoord_34_LumOn_DiffOff.jpg\|none\|400px\|Luminous setting enabled in the Visualise tex coords shader of the UV Cube object.]]
	\|-
	~~\| [[File:VisTexCoord_18_Cube_LuminousRed.jpg\|none\|266px\|The red channel or X axis of the ground and uv mapped cube object with the Visualise tex coords node~~ enabled~~.]] \|\| [[File:VisTexCoord_19_Cube_LuminousGreen.jpg\|none\|266px\|The green channel or Y axis of the ground and uv mapped cube object with~~ the Visualise tex coords ~~node enabled.]] \|\| [[File:VisTexCoord_20_Cube_LuminousBlue.jpg\|none\|266px\|The blue channel or Z axis~~ of the ~~ground and uv mapped cube~~ object ~~with the Visualise tex coords node enabled.]]~~
	\|-
	\| [[File:VisTexCoord_06_LuminousOff.jpg\|none\|266px\|The Visualise tex coords node applied to procedural terrain. Enable unchecked.]] \|\| [[File:VisTexCoord_07_LuminousOn.jpg\|none\|266px\|The Visualise tex coords node applied to procedural terrain. Enable checked.]] \|\|
	\|-
	\| [[File:VisTexCoord_08_LuminousRed.jpg\|none\|266px\|Texture coordinates along the X axis are remapped between 0 and 1 in the Red channel.]] \|\| [[File:VisTexCoord_09_LuminousGreen.jpg\|none\|266px\|Texture coordinates along the Y axis are remapped between 0 and 1 in the Green channel.]] \|\| [[File:VisTexCoord_10_LuminousBlue.jpg\|none\|266px\|Texture coordinates along the Z axis are remapped between 0 and 1 in the Blue channel.]]
	\|}		\|}
	</ul>		</ul>

			*'''Repeat:''' When checked, the texture coordinate values of a procedural object such as the terrain, will be tiled across the surface, repeating the 0 - 1 range.
	*'''Repeat: ''' When checked, the texture coordinate values of a procedural object, such as the terrain, will ~~repeat within~~ the 0 - 1 range.
	<ul>		<ul>
	{\|		{\|
	\|-		\|-
	\| [[File:~~VisTexCoord_21_Cube_Diffuse_RepeatOn~~.jpg\|none\|~~200px\|The Visualise tex coords node applied to ground and uv mapped cube object. Repeat checked.]] \|\| [[File:VisTexCoord_22_Cube_Diffuse_RepeatRed.jpg\|none\|200px~~\|Repeat ~~checked. The texture coordinates along the X axis are remapped between 0 and~~ 1 ~~in the Red channel~~.]] \|\| [[File:~~VisTexCoord_23_Cube_Diffuse_RepeatGreen~~.jpg\|none\|~~200px~~\|Repeat checked. The texture coordinates along the Y axis are remapped between 0 and 1 in the Green channel. ]] \|\| [[File:VisTexCoord_24_Cube_Diffuse_RepeatBlue.jpg\|none\|200px\|Repeat checked. Texture coordinates along the Z axis are remapped between 0 and 1 in the Blue channel.]]		\| [[File:VisTexCoord_36_Repeat1500m.jpg\|none\|400px\|Repeat enabled with scale at 1,500 metres.]] \|\| [[File:VisTexCoord_37_Repeat10000m.jpg\|none\|400px\|Repeat enabled with scale at 10,000 metres.]]
	\|-
	\| [[File:VisTexCoord_25_LuminousOn.jpg\|none\|200px\|The Visualise tex coords node applied to ground and uv mapped cube object. Repeat checked.]] \|\| [[File:VisTexCoord_26_LuminousRed.jpg\|none\|200px\|Repeat checked. The texture coordinates along the X axis are remapped between 0 and 1 in the Red channel.]] \|\| [[File:VisTexCoord_27_LuminousGreen.jpg\|none\|200px\|Repeat checked. The texture coordinates along the Y axis are remapped between 0 and 1 in the Green channel. ]] \|\| [[File:VisTexCoord_28_LuminousBlue.jpg\|none\|200px\|Repeat checked. Texture coordinates along the Z axis are remapped between 0 and 1 in the Blue channel.]]
	\|}		\|}
			</ul>
	</ul>		</ul>



	~~</ul>~~
	<br />		<br />
	[[Category:Colour Shader]]		[[Category:Colour Shader]]

Redmaw: Added descriptions and example images for all settings.

2021-03-18T23:33:34Z

Added descriptions and example images for all settings.

@@ Line 1: / Line 1: @@
-[[Image:drex_module_165_image_0.png|485pxpx|Visualise Tex Coords]]
+[[File:VisTexCoord_00_GUI.png|none|470px|Visualise Tex Coords]]
-Visualise normal and visualise tex coords are shaders which give an RGB representation of the 3D vector (the surface normal or the texture coordinates). The R value of the colour is the X component, G is Y, and B is Z. Surface normal values which range from -1 to +1 are remapped into the visible range 0 to 1.
+== Overview ==
-UV coordinates from imported geometry usually only occupy X and Y, therefore blue is usually 0. They usually range from 0 to 1. But if applied to terrain or other procedural object, tex coords are XYZ. There is a repeat option for the texture coordinates because they are not limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range.
+UV coordinates from imported geometry usually range from 0 to 1 and only occupy X and Y, therefore blue is usually 0.  But if applied to terrain or other procedural objects, tex coords are XYZ. There is a repeat option for the texture coordinates because they are not limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range.
 [[Category:Colour Shader]]

JavaJones at 18:50, 1 June 2011

2011-06-01T18:50:35Z

← Older revision		Revision as of 18:50, 1 June 2011
Line 7:		Line 7:
	<!-- imported from file: module_165.html-->		<!-- imported from file: module_165.html-->

	[[Category:Colour Shader\| ]]		[[Category:Colour Shader]]

JavaJones at 17:57, 1 June 2011

2011-06-01T17:57:00Z

← Older revision		Revision as of 17:57, 1 June 2011
Line 1:		Line 1:
	~~[[Category:IMPORT]]~~
	~~='''Visualise Tex Coords'''=~~

	[[Image:drex_module_165_image_0.png\|485pxpx\|Visualise Tex Coords]]		[[Image:drex_module_165_image_0.png\|485pxpx\|Visualise Tex Coords]]

Line 8:		Line 5:
	UV coordinates from imported geometry usually only occupy X and Y, therefore blue is usually 0. They usually range from 0 to 1. But if applied to terrain or other procedural object, tex coords are XYZ. There is a repeat option for the texture coordinates because they are not limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range.		UV coordinates from imported geometry usually only occupy X and Y, therefore blue is usually 0. They usually range from 0 to 1. But if applied to terrain or other procedural object, tex coords are XYZ. There is a repeat option for the texture coordinates because they are not limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range.

	~~__NOTOC__~~
	<!-- imported from file: module_165.html-->		<!-- imported from file: module_165.html-->

			[[Category:Colour Shader\| ]]

JavaJones at 01:12, 29 April 2011

2011-04-29T01:12:54Z

← Older revision		Revision as of 01:12, 29 April 2011
Line 6:		Line 6:
	Visualise normal and visualise tex coords are shaders which give an RGB representation of the 3D vector (the surface normal or the texture coordinates). The R value of the colour is the X component, G is Y, and B is Z. Surface normal values which range from -1 to +1 are remapped into the visible range 0 to 1.		Visualise normal and visualise tex coords are shaders which give an RGB representation of the 3D vector (the surface normal or the texture coordinates). The R value of the colour is the X component, G is Y, and B is Z. Surface normal values which range from -1 to +1 are remapped into the visible range 0 to 1.

	UV ~~coordinate~~ from imported geometry usually only occupy X and Y, therefore blue is usually 0. They usually range from 0 to 1. But if applied to terrain or other procedural object, tex coords are XYZ. There is a repeat option for the texture coordinates because they are not limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range.		UV coordinates from imported geometry usually only occupy X and Y, therefore blue is usually 0. They usually range from 0 to 1. But if applied to terrain or other procedural object, tex coords are XYZ. There is a repeat option for the texture coordinates because they are not limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range.

	__NOTOC__		__NOTOC__
	<!-- imported from file: module_165.html-->		<!-- imported from file: module_165.html-->

JavaJones: /* Visualise Tex Coords */

2011-04-28T19:45:24Z

Visualise Tex Coords

← Older revision		Revision as of 19:45, 28 April 2011
Line 3:		Line 3:

	[[Image:drex_module_165_image_0.png\|485pxpx\|Visualise Tex Coords]]		[[Image:drex_module_165_image_0.png\|485pxpx\|Visualise Tex Coords]]

			Visualise normal and visualise tex coords are shaders which give an RGB representation of the 3D vector (the surface normal or the texture coordinates). The R value of the colour is the X component, G is Y, and B is Z. Surface normal values which range from -1 to +1 are remapped into the visible range 0 to 1.

			UV coordinate from imported geometry usually only occupy X and Y, therefore blue is usually 0. They usually range from 0 to 1. But if applied to terrain or other procedural object, tex coords are XYZ. There is a repeat option for the texture coordinates because they are not limited to just the 0 to 1 range on procedural objects; this option causes the values to repeat within the 0-1 range.

	__NOTOC__		__NOTOC__
	<!-- imported from file: module_165.html-->		<!-- imported from file: module_165.html-->

127.0.0.1: jrfconvert import

2010-07-11T02:56:04Z

jrfconvert import

New page

[[Category:IMPORT]]
='''Visualise Tex Coords'''=

[[Image:drex_module_165_image_0.png|485pxpx|Visualise Tex Coords]]
__NOTOC__