IPreprocessShaders.OnProcessShader

Parameters

Description

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

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

class MyCustomBuildProcessor : IPreprocessShaders
{
    ShaderKeyword m_Blue;

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

    public int callbackOrder { get { return 0; } }

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

            data.RemoveAt(i);
        }
    }
}