Showcase My 3d world + Need HELP...!

[sunnanabdullah]

Godot Version 4.2.2

Assets I used are mostly from polygon heaven in some in 2k and some in 4k.
I just download the blend file and import it directly in my godot project.

What I am doing
I was trying to make some good looking 3d graphics and working with majorly with world environment (NODE) and 3D directional lightening (NODE). I did not do any major changes in the assets. The setting I used here in demo are result of my ( hit and trial ) and I did not find out any useful content from the resources I searched at that time ( But found little help from Godot Doc ). Moreover I made this project about a month ago and this is my first 3d project in Godot.

Problem I Face

1. FPS DROP : The problem i face is when I load bunch of models the fps drops very rapidly. I some how over come this problem with low quality texture and removing too mush assets. But I still need help regarding this issue.
2. LIGHTENING : The other problem is related to world building ( specifically including about lightening in Godot ).
3. TERRAIN : One major problem for me is terrain. Give me some suggestion about terrain building or some useful plugins and tools to build up the terrain.

Showcase

WORLD ENVIROMENT NODE SETTING
NOTE : The setting I got is just result of hit and trial, so feel free to use it and make changes in it. I just go through Godot Doc to get best out of it as I could.

3D LIGHTENING NODE
NOTE : The setting I got is just result of hit and trial, so feel free to use it and make changes in it. I just go through Godot Doc to get best out of it as I could.

Last Message
If you guys find it useful, feel free to use these setting as your starting point and have some fun. And if I have done something wrong comment it down so I will check it. and Please Help me regarding those problem I had mention above if you guys have solution.

[almusx]

First: Check how much polygons is drawing on your scene, from the screenshots its look like very detailed models, if you imported direct from blend files open these models in blender and check the polygon count, if its too high you need to do retopology on then wich is not an easy task. For detailed models you need to use LODs on each model.
Second: For rocks use only 1 or 2 models and instantiate with diferent rotation / scale, this saves gpu.

[sunnanabdullah]

Yes I use one or two model for rocks.
But If I need to use detail model what should I do more other than retopology.
thanks for reply

[almusx]

Unfortunately, there is nothing more you can do. Highly detailed models require high-end machines, even Unreal Engine 5 struggles to render highly detailed scenes and using less detailed models is the only viable solution.

My workflow is:

1. Sculpting high detail model in blender
2. Retopology the model to much lower polygon count (for a character is around 30K - 35K polygons, for Trees 7k - 15k, Rocks 500 - 1k)
3. Finally i make some LODs for the models with much lower polygon count.

If you downloaded the models, check if they are made for games or for rendering, models made for games comes with lods and lower polygon count.

[sunnanabdullah]

Thanks for your advice