IPreprocessShaders.OnProcessShader

Parámetros

Descripción

Implement this interface to receive a callback before a shader snippet is compiled.

Check global keywords by constructing a ShaderKeyword instance with the name of the keyword. To check local keywords, use an additional parameter to specify the shader that is using the local keyword.

using System.Collections.Generic;
using UnityEditor.Build;
using UnityEditor.Rendering;
using UnityEngine;
using UnityEngine.Rendering;

class MyCustomBuildProcessor : IPreprocessShaders
{
    ShaderKeyword m_GlobalKeywordBlue;

    public MyCustomBuildProcessor()
    {
        m_GlobalKeywordBlue = new ShaderKeyword("_BLUE");
    }

    public int callbackOrder { get { return 0; } }

    public void OnProcessShader(Shader shader, ShaderSnippetData snippet, IList<ShaderCompilerData> data)
    {
        ShaderKeyword localKeywordRed = new ShaderKeyword(shader, "_RED");
        for (int i = data.Count - 1; i >= 0; --i)
        {
            if (!data[i].shaderKeywordSet.IsEnabled(m_GlobalKeywordBlue))
                continue;
            if (!data[i].shaderKeywordSet.IsEnabled(localKeywordRed))
                continue;

            data.RemoveAt(i);
        }
    }
}