LE2 - seasonal variation, thoughts

[Flexman]

I'll preface by saying this is for Leadwerks 2.5x

 

I'm adding some seasonal variation to our game (simple test map shown below) through changing the base colour of the terrain layers.

 

I know some of you chaps have tried or done this before. Do you have any tips on how to incrementally lighten/blend snow on the tree and vegetation models?

 

 

[shadmar]

Like this ?

http://www.leadwerks.com/werkspace/page/gallery/_/snow-on-everything-by-shader-r99

[Josh]

The height-based blend technique used in the Leadwerks 3 terrain shader would work really well for this. You would get crystals of snow appearing first, then larger clumps, then full coverage. The math is pretty straightforward so you should be able add it to the Leadwerks 2 shader.

[Flexman]

Like this ?

http://www.leadwerks.com/werkspace/page/gallery/_/snow-on-everything-by-shader-r99

 

Ah, I remember this now Shadmar. Looks perfect. Is it possible to download this shader so I can try in my project? I'm reasonably happy with the terrain but would be better with a custom blend technique. If I can match the vegetation models and building meshes with Shadmar's snow then that would be job done.

[shadmar]

Here are the ones I used for the picture above :

 

There are a few shader variants :

 

diffuse+snow

diffuse+snowmap texture

diffuse+snowmap texture and bumped snowmap

diffuse+bumpmap+snow

diffuse+bumpmap+snowmap texture

diffuse+bumpmap+snowmap texture and bumped snowmap

 

If you want to adjust snow strenght (thickness) you can adjust

uniform float SnowMultipler=4.0;

in mesh.frag or use a SendShaderFloat("SnowMultipler",float) from your app or editor in lua.

 

baseshader.zip

You need to replace mesh.frag and mesh.vert in your shaders.pak in the mesh directory.

They are using preprosessor directives so they won't change existing shader functionality.

 

snowshader_and_mats.zip

Just some example mat files and shaders to go with them, plaus a snow texture and a diffuse texture with bumpmaps.

baseshader.zip

snowshader_and_mats.zip