protected override void OnAfterRender()
{
WebGLContext context = this.canvasReference.CreateWebGL(new WebGLContextAttributes
{
PowerPreference = WebGLContextAttributes.POWER_PREFERENCE_HIGH_PERFORMANCE
});
context.ClearColor(0, 0, 0, 1);
context.Clear(BufferBits.COLOR_BUFFER_BIT);
var program = this.InitProgram(context, VS_SOURCE, FS_SOURCE);
var vertexBuffer = context.CreateBuffer();
context.BindBuffer(BufferType.ARRAY_BUFFER, vertexBuffer);
var vertices = new[]
{
-0.5f, -0.5f, 0.0f, 1.0f, 0.0f, 0.0f,
0.5f, -0.5f, 0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 1.0f
};
context.BufferData(BufferType.ARRAY_BUFFER, vertices, BufferUsageHint.STATIC_DRAW);
context.VertexAttribPointer(0, 3, DataType.FLOAT, false, 6 * sizeof(float), 0);
context.VertexAttribPointer(1, 3, DataType.FLOAT, false, 6 * sizeof(float), 3 * sizeof(float));
context.EnableVertexAttribArray(0);
context.EnableVertexAttribArray(1);
context.UseProgram(program);
context.DrawArrays(Primitive.TRIANGLES, 0, 3);
}
public static void Main()
{
var target = Element.GetById("target");
var canvas = new Canvas();
target.AppendChild(canvas);
initGL(canvas);
initShaders();
initBuffers();
gl.ClearColor(0.0, 0.0, 0.0, 1.0);
gl.Enable(gl.DepthTest);
drawScene();
}