Problem with refraction and terrain height

[Andy90]

Hello, i noticed that refraction has an problem with water and the terrain height. 

You can reproduce this when you create an terrain add an big brush for the water and sculpt the terrain.

[Josh]

What specifically in your screenshot does not look as you would expect? I can't tell from a still image.

I created a test scene and everything acts as I would expect:

watertest.zip

[Andy90]

You sculpt inwards. I sculpted an mountain and place water arround it:

This way you can reproduce the bug.

[Josh]

This is what I see. Looks normal:

watertest2.zip

[Andy90]

however you can see that there is an issue. For me it looks not normal. I can send you later the scene.

[Josh]

52 minutes ago, Andy90 said:

however you can see that there is an issue. For me it looks not normal. I can send you later the scene.

What is the issue? It looks normal to me in my image above.

[Andy90]

You can see the issue on my screenshot from post 1. I have no clue how it can be bether reproduced. There is some problem that if you put the water brush higher then the terrain and much bigger then it gives the result that the water is just not there. I also can send you the project files.

[Josh]

Can you please upload the map file that causes the error?

[Andy90]

Sure here it is

Start.zip

[Josh]

This is what I see when I run your map. Do you see something different?

[Andy90]

Yes 

[Josh]

Okay, it looks like there is an error when the depth difference is beyond the transition zone. I will try my Nvidia card today.

[Josh]

I installed the latest Nvidia 576.02 driver, and created a new project: I disabled fog and all post-processing effects, so I could better see what is happening.

Nothing seems very strange here on a 1080 ti:

I recommend the following:

• Update your Nvidia driver.
• Remove all post-processing effects.
• Disable fog.
• Disable tessellation.
• Disable screen-space reflection.
• Make sure you have the very latest shaders and post-processing .fx files in your project.

[Andy90]

I have the newest driver, removed all post processing effects, disabled fog, disabled tesselation, disabled screen-space reflections and the latest shaders. No change.

[Andy90]

maybe its realy bether i send you the project. Since nothing works for me. Also you need to concider that its maybe related to RTX cards since you have an GTX card. So you can check if the project itself looks right on your gtx.

[Josh]

Yes, that would be good.

[Josh]

Looks great on a 1080. Maybe we should make a simple test and see if anyone else with an RTX card has the same problem?

[Andy90]

do you capture the screenshot within the editor ?

[Josh]

Yes.