method render

Source

@override
void render(RenderState renderState) {

  var renderContext = renderState.renderContext;
  var renderTextureQuad = bitmapData.renderTextureQuad;
  var renderTexture = bitmapData.renderTexture;

  var matrix = renderTextureQuad.samplerMatrix;
  var ma = matrix.a * bitmapData.width;
  var mb = matrix.b * bitmapData.width;
  var mc = matrix.c * bitmapData.height;
  var md = matrix.d * bitmapData.height;
  var mx = matrix.tx;
  var my = matrix.tx;

  _vxListTemp = _vxListTemp ?? new Float32List(vxList.length);

  for (int i = 0; i < _vxListTemp.length - 3; i += 4) {
    var x = vxList[i + 2];
    var y = vxList[i + 3];
    _vxListTemp[i + 0] = vxList[i + 0];
    _vxListTemp[i + 1] = vxList[i + 1];
    _vxListTemp[i + 2] = mx + x * ma + y * mc;
    _vxListTemp[i + 3] = my + x * mb + y * md;
  }

  renderContext.renderTextureMesh(
      renderState, renderTexture,
      ixList, _vxListTemp);
}