Output is a mkv file straight out of cycles rendering.
Firstly, here is what I see in viewport. It is a water cube that reflecting the above object. No matter its denoise or not. This is what I wanted the rendering video look like. (BUT I CAN NOT UPLOAD SECOND IMAGE BECAUSE I’M A NEW USER)
But rendering result just not right, be like this.
I think I found the issue. The two Water Cube objects are overlapping, and while you have disabled one of them in the viewport (The closed/open eye icon) you have not disabled it in render (the camera icon)
Hence, when you click render, the two Water Cube objects overlap and cause something called Z-fighting.
Try unchecking the ‘camera’ icon in the ouliner of the Water Cube ( without physics ver.) object and see if it works.
Yoooooooo Wellstar. You are the life saver. Never thought about those two cubes are overlapping><.
Let me try. I will tell you if it is worked. Thanks mate.