Get Position - Revision history

Redmaw: Changed brightness to amplitude.

2022-03-30T22:26:08Z

Changed brightness to amplitude.

Redmaw: Updated descriptions and added example images.

2022-03-23T06:12:49Z

Updated descriptions and added example images.

Show changes

Matt at 01:56, 7 October 2018

2018-10-07T01:56:39Z

JavaJones at 18:33, 1 June 2011

2011-06-01T18:33:42Z

JavaJones at 01:21, 18 May 2011

2011-05-18T01:21:34Z

Matt: /* Get Position */

2011-05-02T00:58:14Z

‎Get Position

Matt: /* Get Position */

2011-05-02T00:54:37Z

‎Get Position

Matt: /* Get Position */

2011-05-02T00:53:33Z

‎Get Position

JavaJones at 01:04, 29 April 2011

2011-04-29T01:04:35Z

127.0.0.1: jrfconvert import

2010-07-11T02:55:23Z

jrfconvert import

New page

[[Category:IMPORT]]
='''Get Position'''=

[[Image:drex_module_38_image_0.png|485pxpx|Get Position]]
__NOTOC__

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 * Set “'''Scalar'''” to any number you want, for example “'''112862'''”.  This value will be used as a starting point for the noise pattern.
 * Drag a connection line from the “'''Output'''” of the second Constant scalar node to the “'''Seed'''” input of the Perlin 3D scalar node.
-* Add a “'''Multiply scalar'''” node to the project.  We’ll use this to “brighten" or raise the values of the noise pattern.
+* Add a “'''Multiply scalar'''” node to the project.  We’ll use this to increase the amplitude of the noise pattern values.
 * Drag a connection line from the “'''Output'''” of the Perlin 3D scalar node to the “'''Main input'''” of the Multiply scalar node.
 * Add a “'''Constant scalar'''” to the project.

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 Provides the Position, in world space, of the current [[Render State]]. The [[Render State]] is affected by any shaders which were called before this function is called, among other things. Position is the current point on/in the surface/volume being rendered or sampled.
 When used in the context of displacement, for example in a function network that feeds a displacement shader, Position depends on where the node is connected with respect to other displacement shaders. This is because displacement shaders modify Position immediately.
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 For many shading uses it is better to use [[Get Position in Texture]], because that often provides a value that is consistent between displacement and colour contexts.
 <!-- imported from file: module_38.html-->
 [[Category:Get]]

← Older revision		Revision as of 18:33, 1 June 2011
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	<!-- imported from file: module_38.html-->		<!-- imported from file: module_38.html-->

−	[[Category:Get\| ]]	+	[[Category:Get]]

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 [[Image:drex_module_38_image_0.png|485pxpx|Get Position]]
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 The Input connection is not used by this node.
 <!-- imported from file: module_38.html-->

← Older revision		Revision as of 00:58, 2 May 2011
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	When used in the context of providing colour and lighting to a surface, for example in a function network that feeds a shader's colour or luminosity, Position is always the "final position" after all displacement. This is because all displacements are performed before any shader's colour and lighting is calculated.		When used in the context of providing colour and lighting to a surface, for example in a function network that feeds a shader's colour or luminosity, Position is always the "final position" after all displacement. This is because all displacements are performed before any shader's colour and lighting is calculated.
		+
		+	For many shading uses it is better to use [[Get Position in Texture]], because that often provides a value that is consistent between displacement and colour contexts.

	The Input connection is not used by this node.		The Input connection is not used by this node.

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 Provides the Position, in world space, of the current [[Render State]]. The [[Render State]] is affected by any shaders which were called before this function is called, among other things. Position is the current point on/in the surface/volume being rendered or sampled.
-When used in the context of displacement, for example using Get Position in a function network that feeds a displacement shader, Position depends on where the node is connected with respect to other displacement shaders. This is because displacement shaders modify Position immediately.
+When used in the context of displacement, for example in a function network that feeds a displacement shader, Position depends on where the node is connected with respect to other displacement shaders. This is because displacement shaders modify Position immediately.
-When used in the context of providing colour and lighting to a surface, for example using Get Position in a function network that feeds a shader's colour or luminosity, Position is always the "final position" after all displacement. This is because all displacements are performed before any shader's colour and lighting is calculated.
+When used in the context of providing colour and lighting to a surface, for example in a function network that feeds a shader's colour or luminosity, Position is always the "final position" after all displacement. This is because all displacements are performed before any shader's colour and lighting is calculated.
 The Input connection is not used by this node.