高级 Iray HDRI 技巧 —— 教程

HDRI 贴图是出色的照明和环境工具，因为它们既能为你提供可随意调整的场景，又预先设置好了所有灯光效果。此外，还能节省几何体内存，并显著提升渲染速度。 然而，这些优势也伴随着一些缺点：若想调整灯光/阴影效果，必须先旋转场景，这往往会导致两者不协调。要么你对灯光和阴影满意，要么对背景满意，但很少能两者兼得。另外，如果想改变模型上的灯光强度，势必会同时影响整个背景的亮度。 在这份高级的 DAZ Studio Iray HDRI 教程中，你将学习如何突破这些限制，实现 100% 自由度，从同一张 HDRI 贴图中获取独立的背景、灯光和阴影效果。这样一来，就能够两全其美了

HDRI maps are wonderful lighting and environment tools since they give you both a scenery to play with, all the lighting already pre-made, plus, you save geometry memory and free up lots of rendering speed. However, all those benefits come with a cost: You can't alter the lights/shadows without rotating the scenery, which often creates a mismatch: You're either happy with the lights and shadows, or the background, and very seldom both. Plus, you can't change the intensity of the lighting on your models without at the same time, altering the overall background brightness. In this advanced DAZ Studio Iray HDRI tutorial, you'll learn how to overcome those limitations, and get 100% freedom to get individual background, lighting, AND shadows from the same HDRI map. The best of both worlds!