fresnel zone

is: The Kr and KT in the formula represent the final reflectivity and refractive index respectively, and θ represents the relative refractive index of the object. θ I and θ t represent the incident angle and refraction angle respectively. It can be seen that for a transparent object, how much light energy is reflected is related to the relative refractive index and incident angle of the object. It is worth noting that, this formula is not applicable when total reflection occurs. In additi

Http://blog.csdn.net/a3070173/archive/2008/11/13/3290091.aspx The effect of using shader to implement freell and color dispersion is very simple. In the CG tutorial and OpenGL Shader Language, there areFor a detailed introduction, I personally think it is important to note that the reflection vector and the refraction vector should be calculated in the world space,Calculation in model space and camera space results in incorrect results. Specific shader code:Vertex shader:Const float g_feta = 0.

Recently, we need to study water implementation and add water to the client for testing to easily implement water refraction and reflection. Note: The demo demo_fresnel in ogre1.7 already exists. Keywords: RTT Fresnel Implementation Method: First, you must manually create two texture, one for rendering reflection and the other for rendering refraction. At last, Fresnel is used as the weight to perform colo

Fresnel effect, refers to when the light reaches two kinds of material contact surface, some light on the surface of the contact surface is reflected out, and the other part of the light will be refracted through the contact surface.Now to use shader to achieve this effect, if you want to accurately describe the underlying physics, its computational formula is very complex, the performance of the consumption is relatively large. Our goal is to make th

Fresnel is the name of the person, he found that when we stand in the water, straight down to the surface of the water, it is not visible reflection of the sun. And when we look at the distance, we can see a very strong reflection, that is, the idiom is reflected in the sparkling. This phenomenon is named Fresnel reflex.Just read this section of the time feel puzzled, the feelings of the book on the beginni

1. Fresnel Effect In general, when the light reaches the contact surface of two kinds of materials, some light is reflected out on the contact surface, and another part of the light will be reflected through the contact surface, this phenomenon is calledFresnel Effect. The Fresnel formula describes how much light is reflected and how much light is reflected. The following is an approximation of the

Fresnel reflection of Unity3d shaderlab cubic graphFresnel reflection is a relatively common type of reflection, and when our eyes are on the surface of the object, the amount of reflection increases significantly,We can see this on almost any surface of the object that supports the reflective type, and we'll do it next.Create Shader and Materialfirst, followed by the cube diagram of the previous section. The code changes less, look directly at the f

#include 　　Application of the chain of the stack of the big talk data structure--the recursive value of the Fresnel sequence

Generally, global variables are stored in the data zone, and local variables are stored in the stack zone,Dynamic variables are stored in the heap area, and function code is stored in the code area.--------------------------------------------------------------- The stack area is a common stack data structure. It complies with the LIFO post-first-in-first-out rules and local variables are arranged there as d

CENTOS7 Modify the system time zone timezone Note: After modifying the time zone of the Linux system, installing JVM,JVM will use the system's time zone by default. If the system time zone is set incorrectly, after installing the JVM, modify the system's time zone, but the J

Windows dynamic disk volume: simple volume, cross-zone volume, with-zone volume, image volume, RAID5 volume configuration operations, cross-zone raid5 Windows Server 2003 provides a new disk management method to improve disk performance and fault tolerance. By upgrading a basic disk to a dynamic disk, you can allocate and manage disk space more flexibly and confi

Memory Allocation and variable storage location (heap, stack, method zone constant pool, method zone static zone), constant static Source: http://www.cnblogs.com/protected/p/6419217.html Intrusion and deletion! When the program is running, data can be saved in six places: 1. Register: This is the fastest storage region, because it is located in a different place

Sharing the SQL area, private SQL area, and game Benchmark 1. Sharing the SQL area is another way to name the handle of the cursor object in Librarycace and the data of the Child heap. Ii. Concept of private SQL zone is stored in PGA in dedicated server mode. (Review the concept of PGA: PGA is allocated on the server side and records various connections Sharing the SQL area, private SQL area and cursor 1. Sharing the SQL area is another way of calling

Shared SQL zone, private SQL zone, and cursor I. Share the SQL ZoneThe shared SQL zone is another way of calling the handle of the cursor object in the Library cace and the data of the Child heap.Ii. Concept of private SQL ZonePrivate SQL zone, which is stored in PGA in dedicated server mode.(Review the concept of PGA

Windows dynamic disk volumes: configuration operations for simple volumes, cross-zone volumes, with-zone volumes, image volumes, and RAID 5 volumes Windows Server 2003 provides a new disk management method to improve disk performance and fault tolerance. By upgrading a basic disk to a dynamic disk, you can allocate and manage disk space more flexibly and configure various disk arrays to improve disk capacit

Time zone resolution and how to adjust the time zone in Linux preface today we found that the system time of Centos6.0-64bit in Vmware is several hours different from that of the host machine. after adjusting the system time, restart and restore the system. So I figured out why. What is the time zone... time zone resol

To provide scale, distributed deployment, resource optimization, and AWS-compatible capabilities, OpenStack introduces four concepts for region,cell,availability zone (AZ) and Host aggregates zone (HAZ), where Regio N and AZ were introduced from the public cloud eldest brother AWS, the Cell was introduced to augment the size of a cluster in a region, and Host aggregates was introduced to optimize resource s

MySQL Time Zone modification method summary, mysql Time Zone Summary This example summarizes how MySQL modifies the time zone. We will share this with you for your reference. The details are as follows: Note:Here we will summarize three methods for modifying the mysql time zone. Method 1: Dynamic Modification in mysql

Time zone resolution and how to adjust the time zone in Linux preface today we found that the Centos 6.0-64bit system time in Vmware differs from the host time for several hours, after adjusting the system time, restart and restore the system. So I figured out why. What is the time zone? Although this basic knowledge has been mentioned in the geography class of j

Quick repair of Centos7 System Time Zone !, Centos7 Time Zone Note: After modifying the time zone of the Linux system, install jvm again. By default, the jvm uses the time zone of the system.If the system time zone is set incorrectly, modify the system time