61 lines
2.5 KiB
Markdown
61 lines
2.5 KiB
Markdown
---
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page_type: sample
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languages:
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- cpp
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products:
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- windows-api-win32
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urlFragment: Direct2DGeometryRealization
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extendedZipContent:
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- path: LICENSE
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target: LICENSE
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description: "Uses opacity masks and A8 targets to enhance performance for anti-aliased geometries."
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---
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# Direct2D Geometry Realization Sample
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This sample shows how to use opacity masks and A8 targets to enhance performance for anti-aliased geometries.
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It also shows how to use meshes to enhance performance for aliased geometries.
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This sample is written in C++.
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## Files
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* DeclareDPIAware.manifest: Specifies that the sample application is DPI-aware.
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* GeometryRealization.cpp: Implements the IGeometryRealization interface.
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* GeometryRealization.h: Defines the IGeometryRealization interface and related types.
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* GeometryRealizationSample.cpp: Implements the DemoApp class, which creates a window and demonstrates the IGeometryRealization interface.
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* GeometryRealizationSample.h: Defines the the DemoApp class.
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* GeometryRealizationSample.sln: The sample's solution file.
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* GeometryRealizationSample.vcproj: The sample project file.
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* RingBuffer.h: The header file for the RingBuffer class. RingBuffer works like a standard array, except that when it fills up, data at the beginning is overwritten.
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* stdafx.h: Defines standard system include files, or project specific include files that are used frequently, but are changed infrequently.
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## Prerequisites
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* Microsoft Windows 7
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* Windows Software Development Kit (SDK) for Windows 7 and .NET Framework 3.5 Service Pack 1
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## Building the Sample
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To build the sample using the command prompt:
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1. Open the Command Prompt window and navigate to the sample directory.
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2. Type msbuild GeometryRealizationSample.sln.
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To build the sample using Visual Studio 2008 (preferred method):
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1. Open Windows Explorer and navigate to the sample directory.
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2. Double-click the icon for the .sln (solution) file to open the file in Visual Studio.
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3. In the Build menu, select Build Solution. The application will be built in the default \Debug or \Release directory.
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## Running the Sample
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This sample uses the following controls:
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* Up Arrow: Increases the number of primitives rendered
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* Down Arrow: Decreases the number of primitives rendered
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* Spacebar: Pauses/resumes the animation.
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* Mouse Wheel: Zooms in and out.
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* 'T' key: Toggles between hardware and software rendering.
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* 'R' key: Toggles between rendering geometry with and without realizations.
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* 'A' key: Toggles between rendering modes.
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