CGWorkshops – Photogrammetry for Games

摄影测量是从一组照片中提取视觉数据以生成完全纹理化的高多边形模型的过程。这是一种用于许多不同行业的工具，例如地图制作、考古和电影。

直到最近，这个过程才开始渗透到视频游戏行业，迄今为止最著名的例子是 EA 的《星球大战：前线》。摄影测量显着提高了人们对游戏的期望质量水平，并且在未来几年将成为更多的标准做法。这技术真的要火了！

在本课程中，您将掌握相关软件以及获得最佳效果所需的摄影技术。不仅如此，您还将了解这种做法如何融入游戏开发流程——将您的摄影测量创作转化为行业标准游戏模型，以便在实时引擎中使用，并在基于物理的材料中出现。
每周大纲
第 1 周 – 摄影测量学概论

摄影测量学概述，以及现代电子游戏中的实际应用
触摸所需的软件包
基本摄影测量技术
讨论照片的理想质量以获得最佳图像处理

第 2 周 – 孤立对象

学生将为他们的孤立物体拍摄课程选择一个主题
高级摄影测量技术
如何处理具有明亮镜面反射的物体
讨论如何设置用于拍摄孤立物体的装备

第 3 周 – 外墙

学生要为他们的各种外墙选择一个主题 外墙
特定的摄影技术概述
讨论一天中的时间、户外拍摄的理想照明条件和解决方法

第 4 周——清理数据

如何将模型和纹理导入 ZBrush
清理 ZBrush 中的扫描数据：几何和纹理
展望未来！
行业标准游戏模型创建UV映射理论与实践概述

第 5 周 – 构建最终资产

学生将学习如何制作纹理烘焙，以及各种烘焙的作用是什么
展望未来！基于物理的材料 (PBR) 概述

第 6 周 – 将所有内容整合在一起

狨猴工具包简介

如何导入模型
如何构建材质
如何设置场景

你需要什么
软件

最低相机要求：可以接受 iPhone 或智能手机相机。
Agisoft Photoscan
Zbrush
Knald 或 Xnormal
Photoshop
Marmoset 工具包

*Photoscan 和 Marmoset 提供试用版。如果使用该软件的试用版，请在课程讲师要求之前不要安装这些软件包，因为试用期将在 30 天后结束。

所需知识

由于课程节奏很快，需要具备 ZBrush 的基本工作知识

Duration 6 Week Course Project Files Included MP4

Title: CGWorkshops – Photogrammetry for Games

Info:
COURSE OVERVIEW

Photogrammetry is the process of pulling visual data from an array of photographs for the purpose of generating fully textured high poly models. This is a tool used in many different industries such as map making, archaeology, and cinema.

Only recently has this process begun to creep into the video game industry, with the most notable example to date being EA’s Star Wars: BattleFront. Photogrammetry has significantly raised the quality level people expect out of their games, and will become much more of a standard practice in the years to come. This technique is about to really catch fire!

In this class you will gain mastery of the associated software, and the photography techniques required to yield the best results. Not only this, but you will also learn how this practice fits into a game development pipeline- translating your photogrammetry creations into industry standard game models for use in real time engines, and surfaced in physics based materials.
WEEK BY WEEK OUTLINE
Week 1 – Introduction to Photogrammetry

Overview of Photogrammetry, and practical application in modern day video games
Touch on required software packages
Basic photogrammetry techniques
Discuss ideal qualities in photos for the best image processing

Week 2 – Isolated Objects

Students are to choose a theme for their isolated object shooting sessions
Advanced photogrammetry techniques
How to handle objects with bright specularity
Discuss how to setup a rig for shooting isolated objects

Week 3 – Facades

Students are to choose a theme for their assortment of facades
Overview of photography techniques specific to facades
Discuss time of day, ideal lighting conditions for shooting outside, and work-arounds

Week 4 – Cleaning Up the Data

How to import models and textures into ZBrush
Cleaning up scan data in ZBrush: geometry, and textures
Looking ahead! Overview of industry standard game model creation
UV mapping theory and practices

Week 5 – Building the Final Assets

Students will learn how to make texture bakes, and what the roles of the various bakes are
Looking ahead! Overview of physics based materials (PBR)

Week 6 – Bringing It All Together

Introduction to the Marmoset Toolbag

How to import your model
How to construct a material
How to set up your scene

WHAT YOU’LL NEED
Software

Minimum camera requirement: Iphone or smartphone camera is acceptable.
Agisoft Photoscan
Zbrush
Knald or Xnormal
Photoshop
Marmoset Toolbag

*Photoscan, and Marmoset have trial versions available. If using trial versions of the software DO NOT INSTALL those packages until the course instructor says to, due to the trial periods ending after 30 days.

Required Knowledge

Because of the class’s quick pace, a basic working knowledge of ZBrush is required