DepthRendrer.java 文件源码

void drawShadow(PointF point1, PointF point2, float correctionValue, Canvas canvas, DepthLayout dl) {
    float angle = Math.abs(Math.abs(getAngle(point1, point2)) + correctionValue);
    float alpha = angle / 180f;
    shadowPaint.setAlpha((int) (alpha * 255f * shadowAlpha));

    canvas.drawRect(0, 0, dl.getWidth(), dl.getHeight(), shadowPaint);
}