about loss D_real or D_real_logits use ?

[ranjiewwen]

thanks you code , when i read the code , the discriminator use sigmoid output, but you also return D_real_logits ,and when caluate the loss real or fake ,you use D_real_logits or D_fake_logits before sigmoid output ; why you don't use the D_real or D_fake ,the sigmoid ouput?
# get loss for discriminator d_loss_real = - tf.reduce_mean(D_real_logits) d_loss_fake = tf.reduce_mean(D_fake_logits)

thank ,can you help me?