This tool as of v0.1 only allows converting Mantra shaders to a appropriate 3rd party shader. (See Compatibility List)

This tool allows the convertion of shaders from parameters specified inside external JSON files found in the Bindings Folder.

This tool can exist for both Python2 and Python 3 Builds of Houdini in the same Folder. (Tested in 18.5)

安装说明，请将echopr和packages解压缩到Houdini Documents文件夹中（此文件夹包含houdini.env文件。）

Then Create a Shelf tool with the following:

Options:

• Name: Shader_Converter_echopr
• Label: Shader Converter 0.1
• Icon: hicon:/SVGIcons.index?COP2_aidenoise.svg

Code:

import shader_conv_echopr as shaderConv

shaderConvWin = shaderConv.ShaderConv()
shaderConvWin.resize(360,500)
shaderConvWin.show()

To install the tool on Windows using the Auto-Installer, Simply download the executable binary from Releases and follow the instructions.

To use this tool Simply select the Shader from the dropdown menu you want to convert to: Then select the appropriate shader(s) from Houdini's Network View then Finally Click Convert.

By Default the location to create the new shader is specified inside of the JSON files, However you can override the location by selecting a Material Network from the Houdini Network View and Clicking Set Override. This allows you to set the target Material Network to be the new place to create the new shaders to. To reset the override Material Network, simply click Reset Override, this will reset the setting to use the default location specified inside of the JSON file.

If you want to edit/add/remove parameters to a shader you can do so by editing the shader_binds and shader_maps objects inside of the JSON file for each specified shader.

Each object name must match between all shaders to convert, however the value can be different.

The JSON File contains 3 lists of objects:

• shader_details

  • This contains details for the shader for the UI elements and meta data for nodes needed to create a texture node and container vopnet.

• shader_binds

  • This contains details for the shader for the paramter conversion. These have been sorted into lists for ease of readablilty.
  • Shader parameters here can be added/changed as long as the object name remains consistant with other JSON shader parameter names.

• shader_maps

  • This contains parameters for locating shader texture maps.
  • Shader parameters here can be added/changed as long as the object name remains consistant with other JSON shader parameter names.

You can also create new shader support for another render engine as long as you follow the template that you can obtain from the template.json file or an of the other json files.

• Allow support for any shader to shader conversion
• Add more support for parameters inside of JSON files from Default install.

MIT