Ambient Occlusion Effects for Combined Volumes and Tubular Geometry
نویسندگان
چکیده
منابع مشابه
Presampled Visibility for Ambient Occlusion
We present a novel method to accelerate the computation of the visibility function of the lighting equation, in dynamic scenes composed of rigid, non-penetrating objects. The main idea of the technique is to pre-compute for each object in the scene its associated four-dimensional field that describes the visibility in each direction for all positional samples on a sphere around the object, we c...
متن کاملNeural Network Ambient Occlusion
1 We present Neural Network Ambient Occlusion (NNAO), a fast, ac2 curate screen space ambient occlusion algorithm that uses a neural 3 network to learn an optimal approximation of the ambient occlu4 sion effect. Our network is carefully designed such that it can be 5 computed in a single pass allowing it to be used as a drop-in re6 placement for existing screen space ambient occlusion technique...
متن کاملVolumetric Ambient Occlusion
This paper presents a new GPU-based algorithm to compute ambient occlusion. We first examine how ambient occlusion is related to the physically founded rendering equation. The correspondence is made by introducing a fuzzy membership function that defines what “near occlusions” mean. Then we develop a method to calculate ambient occlusion in real-time without any pre-computation. The proposed al...
متن کاملGaze-Dependent Ambient Occlusion
Ambient Occlusion is a method of creating shades on the scene, due to occlusion. It is a good looking approximation of the light radiation, however it is very expensive method. It needs a large number of samples to get fair effects. In this article we propose a speed increase of the AO rendering, by using the eye tracker. Human cannot see high frequency details in parafoveal, and we can render ...
متن کاملHybrid Ambient Occlusion
Ambient occlusion captures a subset of global illumination effects, by computing for each point of the surface the amount of incoming light from all directions and considering potential occlusion by neighboring geometry. We introduce an approach to ambient occlusion combining object and image space techniques in a deferred shading context. It is composed of three key steps: an on-the-fly voxeli...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Visualization and Computer Graphics
سال: 2013
ISSN: 1077-2626
DOI: 10.1109/tvcg.2012.306