public async Task Initialize()
{
_context = await _canvasReference.CreateWebGLAsync(new WebGLContextAttributes
{
PowerPreference = WebGLContextAttributes.POWER_PREFERENCE_HIGH_PERFORMANCE
});
vertexBuffer = await _context.CreateBufferAsync();
await _context.BindBufferAsync(BufferType.ARRAY_BUFFER, vertexBuffer);
var program = await this.InitProgramAsync(this._context, VS_SOURCE, FS_SOURCE);
var positionLocation = await _context.GetAttribLocationAsync(program, "aPos");
var texcoordLocation = await _context.GetAttribLocationAsync(program, "aTex");
await _context.VertexAttribPointerAsync((uint)positionLocation, 3, DataType.FLOAT, false, 6 *sizeof(float), 0);
await _context.VertexAttribPointerAsync((uint)texcoordLocation, 2, DataType.FLOAT, false, 6 *sizeof(float), 3 *sizeof(float));
await _context.EnableVertexAttribArrayAsync((uint)positionLocation);
await _context.EnableVertexAttribArrayAsync((uint)texcoordLocation);
await _context.UseProgramAsync(program);
var texture = await _context.CreateTextureAsync();
await _context.BindTextureAsync(TextureType.TEXTURE_2D, texture);
}
protected override async Task <WebGLContext> CreateRenderingContextAsync(BECanvasComponent canvas)
{
var context = await canvas.CreateWebGLAsync();
_program = new AudioFFTGLProgram(context);
return(context);
}