import com.jme3.shader.ShaderKey; //导入依赖的package包/类
private void loadShader(AssetManager manager) {
    // recompute define list
    DefineList allDefines = new DefineList();
    allDefines.addFrom(def.getShaderPresetDefines());
    allDefines.addFrom(defines);

    ShaderKey key = new ShaderKey(def.getVertexShaderName(),
            def.getFragmentShaderName(),
            allDefines,
            def.getShaderLanguage());
    shader = manager.loadShader(key);
    if (shader == null) {
        logger.warning("Failed to reload shader!");
        return;
    }

    // refresh the uniform links
    //owner.updateUniformLinks();

    // register the world bound uniforms
    worldBindUniforms.clear();
    for (UniformBinding binding : def.getWorldBindings()) {
        Uniform uniform = shader.getUniform("g_" + binding.name());
        uniform.setBinding(binding);
        if (uniform != null) {
            worldBindUniforms.add(uniform);

        }
    }

    needReload = false;
}
 

import com.jme3.shader.ShaderKey; //导入依赖的package包/类
@Override
public Shader loadShader(ShaderKey key) {return wraps.loadShader(key);}
 

import com.jme3.shader.ShaderKey; //导入依赖的package包/类
/**
 * Loads shader file(s), shouldn't be used by end-user in most cases.
 *
 * @see AssetManager#loadAsset(com.jme3.asset.AssetKey)
 */
public Shader loadShader(ShaderKey key);