您可以使用点精灵：使用 glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);启用它，然后您可以在顶点程序中使用 ...
您可以让顶点着色器按当前用于gl_PointSize的任何值扩展四边形，并使用GPU实例化或手动实例化来绘制大量点...
sizeof(vertices), vertices, GL_STATIC_DRAW); // 设置顶点属性指针 glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), (void*)0); glEnableVertexAttribArray(0); glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), (void*)(2 * sizeof(...
将symbolType设置为square: symbol: { symbolType: 'square', size: 40, color: ['color', 255, 0, 0, 1] } 1. 2. 3. 4. 5. 此时要素会被渲染为正方形,如下图所示: 如果希望设置透明度,只需要添加opacity属性即可,例如将透明度设置为0.3: symbol: { symbolType: 'circle', size: 40, color: [...
glutInitWindowSize(1280, 720) glutCreateWindow("Geometry Shader") glutDisplayFunc(display) glutReshapeFunc(reshape) glutKeyboardFunc(key) glutTimerFunc(33, update, 0) glEnable(GL_DEPTH_TEST) glEnable(GL_POINT_SMOOTH) glEnable(GL_LINE_SMOOTH) ...
OpenGL窗口和上下文由glutCreateWindow创建，但这是在调用init()（它执行类似gluOrtho2D的场景初始化）之后...
OpenGL窗口和上下文由glutCreateWindow创建，但这是在调用init()（它执行类似gluOrtho2D的场景初始化）之后...
size Specifies the number of components per vertex in the buffer object (valid values are 1 to 4). Ifsizeis less than the number of components required by the attribute variable, the missing components are automatically supplied just likegl.vertexAttrib[1234]f(). ...
{ color: 0xff0000, size: 10 } ) ); grid.position.y = - 400; grid.rotation.x = - Math.PI / 2; parent.add( grid ); // postprocessing const renderModel = new RenderPass( scene, camera ); const effectBloom = new BloomPass( 0.75 ); const effectFilm = new FilmPa...
,'circles-zoom':{symbol:{symbolType:'circle',size:['interpolate',['exponential',2.5],['zoom'],2,1,14,32],color:'#240572',offset:[0,0],opacity:0.95,},},'rotating-bars':{symbol:{symbolType:'square',rotation:['*',['time'],0.1],size:['array',4,['interpolate',['linear'],['...