pepwave surf

Unity3D game development from zero single row (9), unity3d Game DevelopmentAbstract What we want to learn today is some Shader examples, from simple to difficult. Let's go. A large wave of examples Use the project used in the previous article. Click to download Red crab Test1.shader Shader "Custom/Test1" { SubShader { Tags { "RenderType" = "Opaque" } CGPROGRAM #pragma surface surf Lambert struct Input { float4 color :

document is not as good as an instance, the following is a simple shader code, and then according to the code to verify the above mentioned structure and the elaboration of some basic shader syntax. Because this article is for Unity3d to write shader, so also use Unity3d to demonstrate it. First, create a new shader, you can find it in the project panel, create, select Shader, and then name it diffuse Texture: Create a new shader in Unity3d Just use a text editor to open the newly created sha

simple, that is, to use a texture (also called a line texture) to record the concave and convex situations on the model, as the normal information of the vertex, the rendered model also feels uneven (details can be found on the official unity website ). The basic bump diffuse shader code is as follows: Shader "Example/Diffuse Bump" { Properties { _MainTex ("Texture", 2D) = "white" {} _BumpMap ("Bumpmap", 2D) = "bump" {} } SubShader { Tags { "RenderType" = "Opaque" }

write. The primary purpose of using fragment shaders is to develop more complex (or more efficient) targets at lower levels. Shader Program StructureExample of a basic surface shader:Shader"Custom/diffuse Texture"{Properties {_maintex("Base (RGB)", 2D) =" White"{}} subshader {Tags {"Rendertype"="Opaque"} LOD $Cgprogram#pragma surface surf Lambert sampler2d_maintex; struct Input {float2 Uv_maintex; }; void

instance, the following is a simple shader code, and then according to the code to verify the above mentioned structure and the elaboration of some basic shader syntax. Because this article is for Unity3d to write shader, so also use Unity3d to demonstrate it. First, create a new shader, you can find it in the project panel, create, select Shader, and name it Diffuse Texture :Just use a text editor to open the newly created shader: shader "Custom/diffuse Texture" {Properties {_main Tex ( "B

learning vertex-related content. Since I saw a picture of unity gems, I have a better understanding of the entire surface shader workflow, and I'll revisit it here.We can see that there are four stages we can participate in. Much of what we learned before was in the second and third stages of writing surf and lightingxxx functions to influence surface shading and illumination functions. In the cartoon-style shader, we also have a tentative attempt at

projection matrix requires a series of representative images. This matrix only applies to these images. Advantage: the non-Immutable low-dimensional storage is retained, which greatly reduces the computing time. 2. gloh (gradient location-orientation histogram) Change the location bins of the 4x4 chess board in the original sift to the 17 Location bins of the affine concentric circle, and calculate the gradient direction histogram (16 gradient directions ), therefore, a total of 16x17 = 272 d

(y) * X; Y = y * ones (SIZE (x )); After the preceding statement is executed, each row of matrix X is vector X, the number of rows is equal to the number of elements of vector y, and each column of matrix Y is vector y, the number of columns equals the number of elements in vector X. Generate using the meshgrid function; X = A: DX: B; Y = C: Dy: D; [X, y] = meshgrid (x, y ); After the statement is executed, the obtained grid coordinate matrix is the same as the preceding method. when X is Y, it

instance, the following is a simple shader code, and then according to the code to verify the above mentioned structure and the elaboration of some basic shader syntax. Because this article is for Unity3d to write shader, so also use Unity3d to demonstrate it. First, create a new shader, you can find it in the project panel, create, select Shader, and name it Diffuse Texture :Just use a text editor to open the newly created shader:Shader"Custom/diffuse Texture"{Properties{_maintex("Base (RGB)",

the above are optional, and if we do not customize these parts, it will use the processing function provided by unity itself.) Here you pay particular attention to the use format of the optional section. #pragma surface surfacefunction Lightmodel [optionalparams] for pixel processing functions surfacefunction, such as the frequently used surf we are more familiar with. For the illumination model, we can have two ways: 1. Use the unity of the light mo

Mapping" {Properties {_maintex ("Base (RGB)",2D) = "white" {} //1 _bump ( "Bump", 2d) = "bump" {}} subshader {Tags {" Opaque "} LOD 200 cgprogram #pragma surface surf Lambert sampler2d _maintex; //2 sampler2d _bump; struct Input {float2 Uv_maintex; //3 float2 uv_bump;}; void Surf (Input in, InOut surfaceoutput o) {half4 c = tex2d (_maintex, In.uv_maintex); //4 o.normal = Unpacknormal (tex2d (_bump, in.uv_

Mapping" {Properties {_maintex ("Base (RGB)",2D) = "white" {} //1 _bump ( "Bump", 2d) = "bump" {}} subshader {Tags {" Opaque "} LOD 200 cgprogram #pragma surface surf Lambert sampler2d _maintex; //2 sampler2d _bump; struct Input {float2 Uv_maintex; //3 float2 uv_bump;}; void Surf (Input in, InOut surfaceoutput o) {half4 c = tex2d (_maintex, In.uv_maintex); //4 o.normal = Unpacknormal (tex2d (_bump, in.uv_

); Surf (x, y, z); Title (' Surf (x, y, z) ') Standard three-dimensional surface: T=0:pi/20:2*pi; [X,y,z]= Cylinder (2+sin (t), 30); Subplot (2,2,1); Surf (x, y, z); Subplot (2,2,2); [X,y,z]=sphere; Surf (x, y, z); Subplot (2,1,2); [X,y,z]=peaks (30); Surf (x, y, z); Other f

Brighten (H,beta) increases or decreases the color intensity of the object that the handle H points to Newmap = Brighten (Beta) returns a new color map that is increased or weakened than the current color map Newmap = Brighten (cmap,beta) The command does not change the brightness of the specified color graph cmap, but returns the changed color map to Newmap Example: Observing the image of three kinds of different color maps of peak function >> H1 = figure; >>

go through the main elements of the Python library that builds the image search engine:algorithmScaling invariant feature transformation algorithm A patented technology with non-free functionality, using image identifiers to identify similar images, even those from different angles, sizes, depths and scales, will also be included in the search results. Click here to view SIFT detailed video. SIFT can match search criteria correctly with large databases that extract features from ma

are numbered and then explained.Shader"Custom/normal Mapping" {Properties {_maintex ("Base (RGB)", 2D) ="White" {}1 _bump ("Bump", 2D) ="Bump" {}}Subshader {Tags {"Rendertype" ="Opaque"}Lod200Cgprogram #pragma surface surfLambert sampler2d _maintex;//2 sampler2d _bump; struct input {float2 uv_MainTex; Span class= "hljs-comment" >//3 float2 uv_bump; }; void Surf (input in, inout surfaceoutput o" {half4 c = tex2d (_maintex, IN.uv_ Maintex); //4 o.norma

Shader"Custom/diffuse Texture"{//position in the shaderProperties {//properties of the shader_maintex ("Base (RGB)", 2D) =" White"{}//The syntax for defining each property is this: _name ("Display Name", type) = Defaultvalue[{options}] Comment: ①} subshader {//Surface ShaderTags {"Rendertype"="Opaque"}//label, cosmetic surface shader annotation ②Lod $ 　　　　　　　　　　　　　　　　 　　 //cannot be less than Subshader of LOD value annotations ③Cgprogram//Shader's ontology uses the CG language or HLSL language,

this article is to analyze the things behind the Surface Shader! That is, to analyze how the Surface Shader parses the functions such as surf and LightingXXX, and how to obtain the pixel color. So, let's get started! Assembly Line First, we need to understand what features Surface Shader supports. For more information, see the official website. The most important part of Surface Shader is Two struct and its compilation commands. Two struct The two

current pixel Z-value to be rendered is greater than Z in the buffer, it is rendered, that is, the object behind it covers the front. Cgprogram#pragma Surface Surf lambertsampler2d _maintex;struct Input {float2 uv_maintex;}; void Surf (Input in, InOut surfaceoutput o) {half4 c = tex2d (_maintex, In.uv_maintex); O. Albedo = C.rgb;o. Alpha = C.A;} ENDCG} FallBack "Diffuse"}Just added two words before Cgprogr

magic. As the name suggests, it is the content related to learning vertices. Since reading a figure in Unity gems below, I have a better understanding of the entire surface shader workflow. I will repeat it here. We can see that there are four stages that we can participate in. Most of our previous studies were in the second and third stages, namely writing the surf and lightingxxx functions to influence the surface coloring and illumination funct