I used to implement the Energy-Conserving Hair Scattering Model as the pre-calculation program, so that now spent a day to implement the all stuff as the shader in Arnold. Next step is to implement this model with importance sampling as the paper “Im…

Convolutional Neural Networks: Application Welcome to Course 4's second assignment! In this notebook, you will: Implement helper functions that you will use when implementing a TensorFlow model Implement a fully functioning ConvNet using TensorFlow (…

BACKGROUND 1. Field of the Invention The present invention relates generally to a programming model for a heterogeneous processor system. 2. Background Art With the success of programming models such as OpenCL and CUDA, heterogeneous computing platfo…

最近想把写过的一个多线程程序整理一下,这个程序主要特点是有一系列的互相之间有依赖关系的task.于是在网上找相关类库 1,一类是简单的线程池了,这也是原本俺的做法.之前使用的是手工调度,代码实现的很蛋疼.外面的lib有poco https://pocoproject.org/slides/130-Threads.pdf 3,微软的并行库1)MS PPL (Parallel Patterns Library)之类的类库,感觉这里一类本质上和1没有大的分别2)MS tpl (Task Paralle…

http://www.design-reuse.com/articles/14886/fully-digital-implemented-delta-sigma-analog-to-digital-converter.html by Dr. Michael  Gude & Gerriet MuellerCologne Chip AG, Koeln (Cologne), Germany Abstract One of the most challenging tasks in Analog to…

目录 一. 前言 1.1 本文动机 1.2 PBR知识体系 1.3 本文内容及特点 二. 初阶:PBR基本认知和应用 2.1 PBR的基本介绍 2.1.1 PBR概念 2.1.2 与物理渲染的差别 2.1.3 PBR的特征 2.2 PBR的衍变历史 2.2.1 Lambert(1760年) 2.2.2 Smith(1967年) 2.2.3 Phong(1973年) 2.2.4 Cook-Torrance(1982年) 2.2.5 Oren Nayarh(1994年) 2.2.6 Schlick(…

判断一种PBR光照模型是否是基于物理的,必须满足以下三个条件: ()基于微平面(Microfacet)的表面模型.Be based on the microfacet surface model. ()能量守恒.Be energy conserving. ()应用基于物理的BRDF.Use a physically based BRDF.   原理一 微平面模型 The microfacet model     描述:任何表面(surface)在微观尺度下都可以描述为由一系列微小的平面(micr…

Turtle Talk Prior to the on-set motion capture, the team had the actors perform expressions while being scanned with Disney Research's Medusa system. The Muse team decomposed those scans into components within Fez, ILM's facial animation system that…

先放上效果 惊现塞拉酱 算法是Weta Digital根据siggraph2003的论文加以改进,改进之前使用的是Kajiya and Kay’s 模型,它能量不守恒,也就是说不是基于物理的,不准确  电镜下真实头发丝纤维的照片,我们发现上面有很多重叠的角质层叫做毛小皮也叫毛鳞片,他们相对根部的倾斜角度大约为3°,近似模型如下图 头发纤维的模型R为反射(reflection),T为穿透(transmission),也就是折射这里假设光有三种传播方式R, TT, TRTR是直接反射,TT是经过两次折…

Copied From:https://computing.llnl.gov/tutorials/parallel_comp/ Author: Blaise Barney, Lawrence Livermore National Laboratory UCRL-MI-133316 Table of Contents Abstract Overview What is Parallel Computing? Why Use Parallel Computing? Who is Using Para…