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A realistic atmosphere material for both the Godot game engine and Unreal Engine 4

License: MIT License

GDScript 100.00%

atmosphere atmospheric-scattering godot godot-engine unreal-engine-4 space space-game

realistic-atmosphere-godot-and-ue4's Introduction

Realistic-Atmosphere-Godot-and-UE4

A realistic atmosphere material for both the Godot game engine and Unreal Engine 4

The Unreal version is succeeded by This guide I'll still try and answer issues here, but if you want a more up to date version, then follow the guide.

For Godot, it should be possible to simply copy-paste most of the function from shadertoy into the shader, and adding any missing parameters.

(more in the images folder)

Showcase videos for godot and ue4

There's also a shadertoy version. The repo for that is here. Guide for converting shadertoy shaders to unreal is here

This resporitory provides code for adding realistic admospheres to godot and unreal engine 4. The size, color and intensity can all be tuned.

For unreal engine 4, a project including all needed assets is given (for version 4.22.3), as well as a plugin, by @gbeniola For godot, a standalone shader file is given, as well as a demo project

usage

The UE4 and Godot versions are used a bit differently, so I've created a seperate guide for them, both of which are here: Godot and UE4

The shadertoy verion of this atmosphere can be found here, also by me.

The code is based on the implementation by scratchapixel, with a few modifications to make it work from space, and to make it look nicer

license

The assets are shared under the MIT license, more detail in the LICENSE file.

If you use this in a game or other software, I'm fine with being credited with "Atmosphere by Dimas Leenman, Shared under the MIT license" somewhere in the credits.

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realistic-atmosphere-godot-and-ue4's Issues

Packages successfully on 4.24.2, but the packaged .exe won't run

What could cause this?

PluginVersion + Add BPAtmo

Download : https://cdn.discordapp.com/attachments/760187471056207897/859954729327919134/RealisticAtmospherePluginUE4.26-24.7z

Bye

if you want make planet, use planetcore plugin :p

Help eliminating the polygon quad looking lines

Do you know how I can prevent it showing those lines that look like polygon quads? Check out the picture. It's also in your demos.

Known issues: very big atmosphere. [FIX]

The docs make reference to an issue in Godot with large meshes where the centre of the bounding box isn't rendered. This limit on draw distance is implemented by Godot because, without it, there would be floating point rounding errors close up.

A solution is to manually override the draw distance with:

render_mode skip_vertex_transform;

and within the vertex shader set the z axis max draw equal to the max w distance minus some small amount:

	VERTEX = (MODELVIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;
	NORMAL = (MODELVIEW_MATRIX * vec4(NORMAL, 0.0)).xyz;

	POSITION = (PROJECTION_MATRIX * vec4(VERTEX, 1.0));
	POSITION.z = POSITION.w * 0.999999;

Credit to Bastian Olij.