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首页> 外文期刊>IEEE transactions on visualization and computer graphics >Rendering deformable surface reflectance fields
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Rendering deformable surface reflectance fields

机译:渲染可变形的表面反射场

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摘要

Animation of photorealistic computer graphics models is an important goal for many applications. Image-based modeling has emerged as a promising approach to capture and visualize real-world objects. Animating image-based models, however, is still a largely unsolved problem. In this paper, we extend a popular image-based representation called surface reflectance field to animate and render deformable real-world objects under arbitrary illumination. Deforming the surface reflectance field is achieved by modifying the underlying impostor geometry. We augment the impostor by a local parameterization that allows the correct evaluation of acquired reflectance images, preserving the original light model on the deformed surface. We present a deferred shading scheme to handle the increased amount of data involved in shading the deformable surface reflectance field. We show animations of various objects that were acquired with 3D photography.
机译:逼真的计算机图形模型的动画是许多应用程序的重要目标。基于图像的建模已成为一种捕捉和可视化现实世界对象的有前途的方法。但是,基于图像的模型动画化仍然是一个尚未解决的问题。在本文中,我们扩展了一种流行的基于图像的表示方法,称为表面反射场,以在任意光照下为可变形的真实世界对象制作动画并进行渲染。通过修改基本的冒名顶替者的几何形状可以使表面反射场变形。我们通过局部参数化来增强冒名顶替者,该参数化可以对获取的反射率图像进行正确评估,从而在变形表面上保留原始光模型。我们提出了一种延迟着色方案,以处理与可变形表面反射场相关的阴影所增加的数据量。我们展示了通过3D摄影获得的各种对象的动画。

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