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The Corona Select Shader is a shader that lets you use multiple texture maps or shaders into a single material and then choose which one of them to use in the actual rendering. To select a specific texture map, click the checkbox next to that item's number.

See also: Corona Select Material

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A common use for this shader is to have different variations for the same texture, e.g., to switch between different wood or concrete textures, etc.


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Shader properties

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Texture count – This value specifies the number of texture maps or shaders that you wish to select between.

Current index – These are the different methods to calculate the Normal bump.

Batch load textures – This option allows loading multiple texture files at once. The number of texture maps loaded will be the Texture count number as well. The textures are always loaded as Corona Bitmaps.

Active texture – The list will show all connected texture maps and allows selecting one of them.

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Currently, the maximum number of texture maps inside a Corona Select Shader is 99 (numbered from 1 to 99).

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Examples

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Controlling Scene Environment

 

The Corona Select Shader is used to quickly switch between 3 different HDR images. 


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Corona Select Shader Textures
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titleActive texture = Environment Map 1

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Active texture = 3
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titleActive texture = 2

 

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Environment Map 2

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titleEnvironment Map 3

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titleClick here to see the material setup

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Controlling Textures

 

In the following example, the Corona Select shader has been used to change the screen texture using a Corona Light Material with the "Emit light" option turned off.

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beforeLabelTexture A
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