Default Shader - Opacity Tab

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Default Shader - Opacity Tab

Description:
The Opacity tab has settings which effect the opacity of the shaderA shader is a program or set of instructions used in 3D computer graphics to determine the final surface properties of an object or image. This can include arbitrarily complex descriptions of light absorption and diffusion, texture mapping, reflection and refraction, shadowing, surface displacement and post-processing effects. In Terragen 2 shaders are used to construct and modify almost every element of a scene.. It might help to think of opacity as being the opposite of transparency.


Settings:

  • Opacity: This sets the overall opacity of the shaderA shader is a program or set of instructions used in 3D computer graphics to determine the final surface properties of an object or image. This can include arbitrarily complex descriptions of light absorption and diffusion, texture mapping, reflection and refraction, shadowing, surface displacement and post-processing effects. In Terragen 2 shaders are used to construct and modify almost every element of a scene.. A value of 1 means the shaderA shader is a program or set of instructions used in 3D computer graphics to determine the final surface properties of an object or image. This can include arbitrarily complex descriptions of light absorption and diffusion, texture mapping, reflection and refraction, shadowing, surface displacement and post-processing effects. In Terragen 2 shaders are used to construct and modify almost every element of a scene. is fully opaque. A value of 0 means the image is fully transparent.
  • Opacity image: You can use this to select an image file to control opacity.

  • Use alpha channel: If this is checked the alpha channel from the specified image file will be used for opacity rather than the colour channels.

  • Invert opacity image: If this is checked the opacity image is inverted i.e. black becomes white.

  • Opacity function: This parameterA parameter is an individual setting in a node parameter view which controls some aspect of the node. lets you control opacity using other nodes.

  • Alpha from colour: If this is checked then the shaderA shader is a program or set of instructions used in 3D computer graphics to determine the final surface properties of an object or image. This can include arbitrarily complex descriptions of light absorption and diffusion, texture mapping, reflection and refraction, shadowing, surface displacement and post-processing effects. In Terragen 2 shaders are used to construct and modify almost every element of a scene. will generate opacity based on a colour from the image specified in the Colour image parameterA parameter is an individual setting in a node parameter view which controls some aspect of the node. and/or the shaderA shader is a program or set of instructions used in 3D computer graphics to determine the final surface properties of an object or image. This can include arbitrarily complex descriptions of light absorption and diffusion, texture mapping, reflection and refraction, shadowing, surface displacement and post-processing effects. In Terragen 2 shaders are used to construct and modify almost every element of a scene. connected to the Colour function parameterA parameter is an individual setting in a node parameter view which controls some aspect of the node.. The colour used for opacity is set with the Alpha key parameterA parameter is an individual setting in a node parameter view which controls some aspect of the node..

  • Alpha key: This sets the colour used to generate opacity. For example if you want green areas to be transparent you would set the alpha key to green.

  • Key tolerance: This controls how many shades of colour similar to the Alpha key colour are used to generate opacity.


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