Render Issue Anti-aliaing

Hello Everyone,

There is a problem when I tried to render png file from the pipeline.

I did make it before the outliner is Ok like this old.png.

You can see the red line is pure red that I set to ff0000.

But some times later when I tried to render again, I cannot get the pure red line. And it looks like this new.png.

I disable the MSAA and the camera setting is like this option.png.

Could you please tell me what is wrong with my render setting?

Thank you very much.

 

Anyone can help me? I have tried many things that I can, but still not working..

 

Are you using bilinear filtering anyway if you are using render textures?