EditorGraphicsSettings.GetShaderBuildSettings

Returns

ShaderBuildSettings A copy of the currently active shader build settings data.

Description

Gets the currently active set of shader build settings.

Returns the shader build settings data of the currently active build profile. If there is no active build profile selected, the data from the Graphics Settings section of the Player Settings will be returned.

Additional resources: ShaderBuildSettings, EditorGraphicsSettings.SetShaderBuildSettings.

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

using KeywordDeclarationOverride = UnityEditor.Shaders.ShaderBuildSettings.KeywordDeclarationOverride;
using KeywordOverrideInfo = UnityEditor.Shaders.ShaderBuildSettings.KeywordOverrideInfo;

public class ShaderBuildSettingsExample
{
    void AddKeywordDeclarationOverride()
    {
        // Get current shader build settings either from the currently active build profile
        // or if none is active, the global graphics settings.
        ShaderBuildSettings buildSettings = EditorGraphicsSettings.GetShaderBuildSettings();

        // Create a new keyword declaration override
        var newOverride = new KeywordDeclarationOverride
        {
            // Define the set of keywords to override
            keywords = new KeywordOverrideInfo[] { new("_", true), new("LINEAR_BEAUTY", true), new("EXPONENTIAL_BEAUTY", true) },

            // Use dynamic branching. Note: The shader import fails if the shader code isn't compatible with dynamic branching.
            variantGenerationMode = ShaderBuildSettings.ShaderVariantGenerationMode.SingleVariantWithDynamicBranching
        };

        // Check if each keyword is valid
        foreach (var kw in newOverride.keywords)
        {
            Debug.Log(kw.name + (kw.keepInBuild ? ": keep" : ": strip"));
            if (!kw.IsValid())
                return;
        }

        // Check if an override is valid.
        string validationErrors;
        if (!newOverride.IsValid(out validationErrors))
        {
            Debug.LogError(validationErrors);
            return;
        }

        // Get the copy of the existing overrides, and add the new overrides struct
        var kwDeclarationOverrides = new List<KeywordDeclarationOverride>(buildSettings.GetKeywordDeclarationOverridesCopy());
        kwDeclarationOverrides.Add(newOverride);

        // Set the modified keyword declaration overrides on the settings data struct. Throw an exception if the data is invalid.
        try
        {
            buildSettings.KeywordDeclarationOverrides = kwDeclarationOverrides.ToArray();
        }
        catch (ArgumentException ex)
        {
            Debug.LogError(ex.Message);
            return;
        }

        // Apply the modified settings data back to the Graphics settings or Build Profile settings
        EditorGraphicsSettings.SetShaderBuildSettings(buildSettings);
    }
}