create barcode c#.net Semantics in Font

Drawing Data Matrix in Font Semantics

Semantics
Make Data Matrix 2d Barcode In None
Using Barcode maker for Font Control to generate, create ECC200 image in Font applications.
www.OnBarcode.com
Quick Response Code Generation In None
Using Barcode generator for Font Control to generate, create QR image in Font applications.
www.OnBarcode.com
HLSL uses semantics to map input and output data to variables. For example, you use the POSITION0 semantic in the vertices processing stage to map the position attribute of each vertex to a varying variable, as follows:
GTIN - 13 Generator In None
Using Barcode generation for Font Control to generate, create UPC - 13 image in Font applications.
www.OnBarcode.com
Encode Code 39 In None
Using Barcode drawer for Font Control to generate, create ANSI/AIM Code 39 image in Font applications.
www.OnBarcode.com
float4 vertexPosition : POSITION0;
Generating PDF-417 2d Barcode In None
Using Barcode creator for Font Control to generate, create PDF-417 2d barcode image in Font applications.
www.OnBarcode.com
Generate Data Matrix In None
Using Barcode printer for Font Control to generate, create Data Matrix image in Font applications.
www.OnBarcode.com
The semantics are required in all varying input data (received from the application or passed between the rendering stages). For example, all the data output from the vertex shader that will be used in the pixel shader must be associated to a semantic. Semantics are not case sensitive and are specified after the variables names using a colon (:). Table 8-2 shows some vertex shader semantics.
Printing USS Code 128 In None
Using Barcode creation for Font Control to generate, create USS Code 128 image in Font applications.
www.OnBarcode.com
Uniform Symbology Specification Code 93 Drawer In None
Using Barcode maker for Font Control to generate, create USS Code 93, USS 93 image in Font applications.
www.OnBarcode.com
Table 8-2. Vertex Shader Semantics Input
Data Matrix 2d Barcode Maker In Visual C#.NET
Using Barcode generation for .NET Control to generate, create Data Matrix 2d barcode image in Visual Studio .NET applications.
www.OnBarcode.com
ECC200 Drawer In None
Using Barcode generator for Excel Control to generate, create Data Matrix image in Microsoft Excel applications.
www.OnBarcode.com
POSITION[n] COLOR[n] NORMAL[n] TEXCOORD[n] TANGENT[n] BINORMAL[n] BLENDINDICES[n] BLENDWEIGHT[n]
EAN-13 Supplement 5 Reader In Visual Studio .NET
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Barcode Maker In Java
Using Barcode printer for Eclipse BIRT Control to generate, create Barcode image in Eclipse BIRT applications.
www.OnBarcode.com
Description
Read USS Code 128 In VB.NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Code 39 Full ASCII Reader In VB.NET
Using Barcode decoder for .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Vertex position in object space Diffuse and specular color Normal vector Texture coordinate Tangent vector Binormal vector Bones blend indices Bones blend weight
Drawing QR Code In Objective-C
Using Barcode drawer for iPad Control to generate, create Quick Response Code image in iPad applications.
www.OnBarcode.com
Reading Code-128 In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Type
EAN13 Recognizer In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
GS1-128 Generation In Visual Studio .NET
Using Barcode drawer for .NET framework Control to generate, create UCC.EAN - 128 image in VS .NET applications.
www.OnBarcode.com
float4 float4 float4 float4 float4 float4 int4 float4
Print Code 3 Of 9 In Java
Using Barcode creator for Android Control to generate, create USS Code 39 image in Android applications.
www.OnBarcode.com
Create DataMatrix In Objective-C
Using Barcode encoder for iPhone Control to generate, create Data Matrix ECC200 image in iPhone applications.
www.OnBarcode.com
CHAPTER 8 s RENDERING PIPELINE, SHADERS, AND EFFECTS
Input
Output
Description
Description Position of a vertex in homogenous space (X, Y, Z, W) Diffuse or specular color Texture coordinates Vertex fog
Type
Type
POSITION[n] COLOR[n] TEXCOORD[n] FOG
float4 float4 float4 float
You use the input vertex shader semantics for varying data received by the vertex shader. Some commonly used semantics are POSITION, COLOR, NORMAL, and TEXTURE. You use the TANGENT and BINORMAL semantics if the vertex has tangent or binormal vectors, which are perpendicular vectors to the normal vertex. You use these three vectors to create a coordinate system that is planar to the object surface in a point (called tangent space). You use the BLENDINDICES and BLENDWEIGHT semantics when the vertices are linked to bones. Bones are used to deform the vertices of a mesh and will be explained in 11. Notice that the [n] is an optional integer that defines the number of the resource to be used. For example, if a model has three textures, the [n] of its TEXTURE semantic varies between 0 and 2. So, TEXTURE0, TEXTURE1, and TEXTURE2 are valid input semantics for the vertex shader. Table 8-3 shows some pixel shader semantics.
Table 8-3. Pixel Shader Semantics Input
COLOR[n] TEXCOORD[n]
Description
Diffuse or specular color Texture coordinates
Type
float4 float4
Output
COLOR[n] DEPTH[n]
Description
Output color Output depth
Type
float4 float
Because the pixel shader is executed after the rasterization stage, the available input semantics are the pixel color and some texture coordinates. The texture coordinates address the texture positions that are mapped into the current pixel. Note that you could also output custom data from the vertex shader using the texture coordinates. The final data output from the pixel shader is the pixel color and depth, where the output of the pixel color is obligatory and the output of the pixel depth is optional.
CHAPTER 8 s RENDERING PIPELINE, SHADERS, AND EFFECTS
Functions
HLSL allows the creation of functions with syntax like the C language, where each function has a declaration and a body. The function declaration contains the function name and return type, and might have a list of parameters. Also, the return type of a function may have a semantic associated to it. Following is shown the code of a function used as the entry point for the pixel shader. We ll show how to define which functions will be used as the entry point for the vertex and pixel shader in the section Effects.
float4 simplePS(float4 inputColor : COLOR0) : COLOR0 { return inputColor * 0.5f; }
Because the simplePS function is used as the entry point to the pixel shader, its parameters must have a semantic associated. In this case, the simplePS function scales the received color parameter by a factor of 0.5 and returns it as the final pixel color. Note that the parameters of the function can have other modifiers, such as in, out, and inout, which are used to define input, output, and input/output parameters.
Intrinsic Functions
HLSL has a small set of functions, which include math operations, texture access, and flow control. These functions are intrinsic functions because they re built into HLSL and don t necessarily map directly to the GPU assembly instructions. In fact, many of these functions are mapped to a few GPU assembly instructions, and they re likely to provide the best implementation for their task. Table 8-4 shows some of the functions present in HLSL.
Copyright © OnBarcode.com . All rights reserved.