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com.google.gwt.webgl.client.WebGLContextAttributes类的使用及代码示例

转载 作者:知者 更新时间:2024-03-23 04:15:05 28 4
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本文整理了Java中com.google.gwt.webgl.client.WebGLContextAttributes类的一些代码示例,展示了WebGLContextAttributes类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。WebGLContextAttributes类的具体详情如下:
包路径:com.google.gwt.webgl.client.WebGLContextAttributes
类名称:WebGLContextAttributes

WebGLContextAttributes介绍

[英]The WebGLContextAttributes interface contains drawing surface attributes and is passed as the second parameter to getContext. A native object may be supplied as this parameter; the specified attributes will be queried from this object.
[中]WebGLContextAttributes接口包含图形表面属性,并作为第二个参数传递给getContext。本机对象可以作为该参数提供;将从此对象查询指定的属性。

代码示例

代码示例来源:origin: libgdx/libgdx

public GwtGraphics (Panel root, GwtApplicationConfiguration config) {
  Canvas canvasWidget = Canvas.createIfSupported();
  if (canvasWidget == null) throw new GdxRuntimeException("Canvas not supported");
  canvas = canvasWidget.getCanvasElement();
  root.add(canvasWidget);
  canvas.setWidth(config.width);
  canvas.setHeight(config.height);
  this.config = config;
  WebGLContextAttributes attributes = WebGLContextAttributes.create();
  attributes.setAntialias(config.antialiasing);
  attributes.setStencil(config.stencil);
  attributes.setAlpha(config.alpha);
  attributes.setPremultipliedAlpha(config.premultipliedAlpha);
  attributes.setPreserveDrawingBuffer(config.preserveDrawingBuffer);
  context = WebGLRenderingContext.getContext(canvas, attributes);
  context.viewport(0, 0, config.width, config.height);
  this.gl = config.useDebugGL ? new GwtGL20Debug(context) : new GwtGL20(context);
  String versionString = gl.glGetString(GL20.GL_VERSION);
  String vendorString = gl.glGetString(GL20.GL_VENDOR);
  String rendererString = gl.glGetString(GL20.GL_RENDERER);
  glVersion = new GLVersion(Application.ApplicationType.WebGL, versionString, vendorString, rendererString);
}

代码示例来源:origin: threerings/playn

HtmlGraphicsGL(HtmlPlatform platform, HtmlPlatform.Config config) throws RuntimeException {
 super(config);
 canvas = Document.get().createCanvasElement();
 canvas.setWidth(rootElement.getOffsetWidth());
 canvas.setHeight(rootElement.getOffsetHeight());
 rootElement.appendChild(canvas);
 try {
  WebGLContextAttributes attrs = WebGLContextAttributes.create();
  attrs.setAlpha(config.transparentCanvas);
  attrs.setAntialias(config.antiAliasing);
  // if this returns null, the browser doesn't support WebGL on this machine
  WebGLRenderingContext gl = WebGLRenderingContext.getContext(canvas, attrs);
  if (gl == null)
   throw new RuntimeException("Unable to create GL context");
  // Some systems seem to have a problem where they return a non-null context, but it's in an
  // error state initially. We give up and fall back to Canvas in this case, because nothing
  // seems to work properly.
  int error = gl.getError();
  if (error != WebGLRenderingContext.NO_ERROR)
   throw new RuntimeException("GL context started with errors [err=" + error + "]");
  ctx = new HtmlGLContext(platform, config.scaleFactor, gl, canvas);
  rootLayer = new GroupLayerGL(ctx);
 } catch (RuntimeException re) {
  // Give up. HtmlPlatform will catch the exception and fall back to dom/canvas.
  rootElement.removeChild(canvas);
  throw re;
 }
}

代码示例来源:origin: libgdx/libgdx

/** Returns a WebGL context for the given canvas element. Returns null if no 3d context is available. */
public static native WebGLRenderingContext getContext (CanvasElement canvas, WebGLContextAttributes attributes) /*-{
  var names = [ "experimental-webgl", "webgl", "moz-webgl",
      "webkit-webgl", "webkit-3d" ];
  for ( var i = 0; i < names.length; i++) {
    try {
      var ctx = canvas.getContext(names[i], attributes);
      if (ctx != null) {
        // Hook for the semi-standard WebGLDebugUtils script.
        if ($wnd.WebGLDebugUtils) {
          if ($wnd.console && $wnd.console.log)
            console.log('WebGL debugging enabled');
          return $wnd.WebGLDebugUtils.makeDebugContext(ctx);
        }
        return ctx;
      }
    } catch (e) {
    }
  }
  return null;
}-*/;

代码示例来源:origin: io.playn/playn-html

setSize(root.getOffsetWidth(), root.getOffsetHeight());
WebGLContextAttributes attrs = WebGLContextAttributes.create();
attrs.setAlpha(config.transparentCanvas);
attrs.setAntialias(config.antiAliasing);

代码示例来源:origin: libgdx/libgdx

/** Returns a WebGL context for the given canvas element. Returns null if no 3d context is available. */
public static native WebGLRenderingContext getContext (CanvasElement canvas, WebGLContextAttributes attributes) /*-{
  var names = [ "experimental-webgl", "webgl", "moz-webgl",
      "webkit-webgl", "webkit-3d" ];
  for ( var i = 0; i < names.length; i++) {
    try {
      var ctx = canvas.getContext(names[i], attributes);
      if (ctx != null) {
        // Hook for the semi-standard WebGLDebugUtils script.
        if ($wnd.WebGLDebugUtils) {
          if ($wnd.console && $wnd.console.log)
            console.log('WebGL debugging enabled');
          return $wnd.WebGLDebugUtils.makeDebugContext(ctx);
        }
        return ctx;
      }
    } catch (e) {
    }
  }
  return null;
}-*/;

代码示例来源:origin: libgdx/libgdx

public GwtGraphics (Panel root, GwtApplicationConfiguration config) {
  Canvas canvasWidget = Canvas.createIfSupported();
  if (canvasWidget == null) throw new GdxRuntimeException("Canvas not supported");
  canvas = canvasWidget.getCanvasElement();
  root.add(canvasWidget);
  canvas.setWidth(config.width);
  canvas.setHeight(config.height);
  this.config = config;
  WebGLContextAttributes attributes = WebGLContextAttributes.create();
  attributes.setAntialias(config.antialiasing);
  attributes.setStencil(config.stencil);
  attributes.setAlpha(config.alpha);
  attributes.setPremultipliedAlpha(config.premultipliedAlpha);
  attributes.setPreserveDrawingBuffer(config.preserveDrawingBuffer);
  context = WebGLRenderingContext.getContext(canvas, attributes);
  context.viewport(0, 0, config.width, config.height);
  this.gl = config.useDebugGL ? new GwtGL20Debug(context) : new GwtGL20(context);
  String versionString = gl.glGetString(GL20.GL_VERSION);
  String vendorString = gl.glGetString(GL20.GL_VENDOR);
  String rendererString = gl.glGetString(GL20.GL_RENDERER);
  glVersion = new GLVersion(Application.ApplicationType.WebGL, versionString, vendorString, rendererString);
}

代码示例来源:origin: playn/playn

setSize(root.getOffsetWidth(), root.getOffsetHeight());
WebGLContextAttributes attrs = WebGLContextAttributes.create();
attrs.setAlpha(config.transparentCanvas);
attrs.setAntialias(config.antiAliasing);

代码示例来源:origin: thothbot/parallax

/** Returns a WebGL context for the given canvas element. Returns null if no 3d context is available. */
public static native WebGLRenderingContext getContext (CanvasElement canvas, WebGLContextAttributes attributes) /*-{
                                                                            var names = ["experimental-webgl", "webgl", "moz-webgl", "webkit-webgl", "webkit-3d"];
                                                                            for (var i = 0; i < names.length; i++) {
                                                                            try {
                                                                            var ctx = canvas.getContext(names[i], attributes);
                                                                            if (ctx != null) {
                                                                            // Hook for the semi-standard WebGLDebugUtils script.
                                                                            if ($wnd.WebGLDebugUtils) {
                                                                            if ($wnd.console && $wnd.console.log) console.log('WebGL debugging enabled');
                                                                            return $wnd.WebGLDebugUtils.makeDebugContext(ctx);
                                                                            }
                                                                            return ctx;
                                                                            }
                                                                            } catch(e) {
                                                                            }
                                                                            }
                                                                            return null;
                                                                            }-*/;

代码示例来源:origin: com.badlogicgames.gdx/gdx-backend-gwt

public GwtGraphics (Panel root, GwtApplicationConfiguration config) {
  Canvas canvasWidget = Canvas.createIfSupported();
  if (canvasWidget == null) throw new GdxRuntimeException("Canvas not supported");
  canvas = canvasWidget.getCanvasElement();
  root.add(canvasWidget);
  canvas.setWidth(config.width);
  canvas.setHeight(config.height);
  this.config = config;
  WebGLContextAttributes attributes = WebGLContextAttributes.create();
  attributes.setAntialias(config.antialiasing);
  attributes.setStencil(config.stencil);
  attributes.setAlpha(config.alpha);
  attributes.setPremultipliedAlpha(config.premultipliedAlpha);
  attributes.setPreserveDrawingBuffer(config.preserveDrawingBuffer);
  context = WebGLRenderingContext.getContext(canvas, attributes);
  context.viewport(0, 0, config.width, config.height);
  this.gl = config.useDebugGL ? new GwtGL20Debug(context) : new GwtGL20(context);
  String versionString = gl.glGetString(GL20.GL_VERSION);
  String vendorString = gl.glGetString(GL20.GL_VENDOR);
  String rendererString = gl.glGetString(GL20.GL_RENDERER);
  glVersion = new GLVersion(Application.ApplicationType.WebGL, versionString, vendorString, rendererString);
}

代码示例来源:origin: com.badlogicgames.gdx/gdx-backend-gwt

/** Returns a WebGL context for the given canvas element. Returns null if no 3d context is available. */
public static native WebGLRenderingContext getContext (CanvasElement canvas, WebGLContextAttributes attributes) /*-{
  var names = [ "experimental-webgl", "webgl", "moz-webgl",
      "webkit-webgl", "webkit-3d" ];
  for ( var i = 0; i < names.length; i++) {
    try {
      var ctx = canvas.getContext(names[i], attributes);
      if (ctx != null) {
        // Hook for the semi-standard WebGLDebugUtils script.
        if ($wnd.WebGLDebugUtils) {
          if ($wnd.console && $wnd.console.log)
            console.log('WebGL debugging enabled');
          return $wnd.WebGLDebugUtils.makeDebugContext(ctx);
        }
        return ctx;
      }
    } catch (e) {
    }
  }
  return null;
}-*/;

代码示例来源:origin: thothbot/parallax

this.config = config;
WebGLContextAttributes attributes = WebGLContextAttributes.create();
attributes.setAntialias(config.isAntialiasing());
attributes.setStencil(config.isStencil());
attributes.setAlpha(config.isAlpha());
attributes.setPremultipliedAlpha(config.isPremultipliedAlpha());
attributes.setPreserveDrawingBuffer(config.isPreserveDrawingBuffer());

代码示例来源:origin: threerings/playn

/**
 * Returns a WebGL context for the given canvas element. Returns null if no 3d
 * context is available.
 */
public static native WebGLRenderingContext getContext(CanvasElement canvas, WebGLContextAttributes attributes) /*-{
 var names = ["webgl", "experimental-webgl", "moz-webgl", "webkit-webgl", "webkit-3d"];
 for (var i = 0; i < names.length; i++) {
  try {
   var ctx = canvas.getContext(names[i], attributes);
   if (ctx != null) {
    // Hook for the semi-standard WebGLDebugUtils script.
    if ($wnd.WebGLDebugUtils) {
     if ($wnd.console && $wnd.console.log) console.log('WebGL debugging enabled');
     return $wnd.WebGLDebugUtils.makeDebugContext(ctx);
    }
    return ctx;
   }
  } catch(e) {
  }
 }
 return null;
}-*/;

代码示例来源:origin: playn/playn

/**
 * Returns a WebGL context for the given canvas element. Returns null if no 3d
 * context is available.
 */
public static native WebGLRenderingContext getContext(CanvasElement canvas, WebGLContextAttributes attributes) /*-{
 var names = ["webgl", "experimental-webgl", "moz-webgl", "webkit-webgl", "webkit-3d"];
 for (var i = 0; i < names.length; i++) {
  try {
   var ctx = canvas.getContext(names[i], attributes);
   if (ctx != null) {
    // Hook for the semi-standard WebGLDebugUtils script.
    if ($wnd.WebGLDebugUtils) {
     if ($wnd.console && $wnd.console.log) console.log('WebGL debugging enabled');
     return $wnd.WebGLDebugUtils.makeDebugContext(ctx);
    }
    return ctx;
   }
  } catch(e) {
  }
 }
 return null;
}-*/;

代码示例来源:origin: com.googlecode.playn/playn-webgl

/**
 * Returns a WebGL context for the given canvas element. Returns null if no 3d
 * context is available.
 */
public static native WebGLRenderingContext getContext(CanvasElement canvas, WebGLContextAttributes attributes) /*-{
 var names = ["webgl", "experimental-webgl", "moz-webgl", "webkit-webgl", "webkit-3d"];
 for (var i = 0; i < names.length; i++) {
  try {
   var ctx = canvas.getContext(names[i], attributes);
   if (ctx != null) {
    // Hook for the semi-standard WebGLDebugUtils script.
    if ($wnd.WebGLDebugUtils) {
     if ($wnd.console && $wnd.console.log) console.log('WebGL debugging enabled');
     return $wnd.WebGLDebugUtils.makeDebugContext(ctx);
    }
    return ctx;
   }
  } catch(e) {
  }
 }
 return null;
}-*/;

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