1、arnold官方帮助pdf文档中对高光噪点的解决方案如下： Noise can also appear on the specular highlights of thin geometry that use a shader with a high specular_weight value. Increasing the number of Camera (AA) samples can help reduce this effect to a point. However, even with high Camera (AA) samples, anti-aliasing artifacts can appear. Increasing the specular_roughness value helps to reduce this type of noise. Increasing the size of the light and reducing its intensity can also help in these situations. Specular Roughness: 0.2 Specular Roughness: 0.5

2、全局渲染选项，启用自适应采样，adaptive sampling 为 5-6 ， 8为电影，一般6就足够了，默认采样可以保持 3 2 2 2 2 2的基本低配，由于自适应，可以动态智能采样，不但减少闪烁，还会增加渲染速度。对于渲染大图较好。

3、减少高光闪烁，还没启用，全局的采样限制框架。可以抑制特殊的全局和高光过曝。

南无阿弥陀佛