[Shader] Moving Trees Grass in Wind Outside of Terrain

OmarVector · Apr 24, 2018

Anyone able to convert this shader to work with the new SRP? tried to work around and edit the shader but still cant get it to work with the lightweight render pipleline .

colijn · Oct 19, 2018

AustinRichards said: ↑

Today I put together a shader that will make grass + trees move as if in the wind, without having anything to do with the terrain. It's base is the Transparent Cutout Diffuse shader. I figured I'd share it with you guys since I spent weeks looking for a good shader like this with no success, so I made it myself.

Here is a video of the shader in action, in scene view applied to the leaf material of this tree:
http://gyazo.com/0507d1048ead73b6b1cb0c3c6b7a96da.mp4

The wind is customizable on each material so you can have the desired amount of movement.
View attachment 88902

There are TWO versions of the shader. The 1st one is similar to the Transparent Cutout Diffuse shader. the 2nd one has Illumination. It gives it a different look, some may prefer the second one for their tree leaves.

Here is the 1st One:

Code (csharp):

Shader "Transparent/Cutout/Diffuse Shake" {

Properties {

_Color ("Main Color", Color) = (1,1,1,1)

_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}

_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5

_ShakeDisplacement ("Displacement", Range (0, 1.0)) = 1.0

_ShakeTime ("Shake Time", Range (0, 1.0)) = 1.0

_ShakeWindspeed ("Shake Windspeed", Range (0, 1.0)) = 1.0

_ShakeBending ("Shake Bending", Range (0, 1.0)) = 1.0

}

SubShader {

Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}

LOD 200

CGPROGRAM

#pragma target 3.0

#pragma surface surf Lambert alphatest:_Cutoff vertex:vert addshadow

sampler2D _MainTex;

fixed4 _Color;

float _ShakeDisplacement;

float _ShakeTime;

float _ShakeWindspeed;

float _ShakeBending;

struct Input {

float2 uv_MainTex;

};

void FastSinCos (float4 val, out float4 s, out float4 c) {

val = val * 6.408849 - 3.1415927;

float4 r5 = val * val;

float4 r6 = r5 * r5;

float4 r7 = r6 * r5;

float4 r8 = r6 * r5;

float4 r1 = r5 * val;

float4 r2 = r1 * r5;

float4 r3 = r2 * r5;

float4 sin7 = {1, -0.16161616, 0.0083333, -0.00019841} ;

float4 cos8 = {-0.5, 0.041666666, -0.0013888889, 0.000024801587} ;

s = val + r1 * sin7.y + r2 * sin7.z + r3 * sin7.w;

c = 1 + r5 * cos8.x + r6 * cos8.y + r7 * cos8.z + r8 * cos8.w;

}

void vert (inout appdata_full v) {

float factor = (1 - _ShakeDisplacement - v.color.r) * 0.5;

const float _WindSpeed = (_ShakeWindspeed + v.color.g );

const float _WaveScale = _ShakeDisplacement;

const float4 _waveXSize = float4(0.048, 0.06, 0.24, 0.096);

const float4 _waveZSize = float4 (0.024, .08, 0.08, 0.2);

const float4 waveSpeed = float4 (1.2, 2, 1.6, 4.8);

float4 _waveXmove = float4(0.024, 0.04, -0.12, 0.096);

float4 _waveZmove = float4 (0.006, .02, -0.02, 0.1);

float4 waves;

waves = v.vertex.x * _waveXSize;

waves += v.vertex.z * _waveZSize;

waves += _Time.x * (1 - _ShakeTime * 2 - v.color.b ) * waveSpeed *_WindSpeed;

float4 s, c;

waves = frac (waves);

FastSinCos (waves, s,c);

float waveAmount = v.texcoord.y * (v.color.a + _ShakeBending);

s *= waveAmount;

s *= normalize (waveSpeed);

s = s * s;

float fade = dot (s, 1.3);

s = s * s;

float3 waveMove = float3 (0,0,0);

waveMove.x = dot (s, _waveXmove);

waveMove.z = dot (s, _waveZmove);

v.vertex.xz -= mul ((float3x3)_World2Object, waveMove).xz;

}

void surf (Input IN, inout SurfaceOutput o) {

fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;

o.Albedo = c.rgb;

o.Alpha = c.a;

}

ENDCG

}

Fallback "Transparent/Cutout/VertexLit"

}

2nd one with Illumination:

Code (csharp):

Shader "Transparent/Cutout/Self Illum Diffuse Shake" {

Properties {

_Color ("Main Color", Color) = (1,1,1,1)

_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}

_Illum ("Illumin (A)", 2D) = "white" {}

_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5

_ShakeDisplacement ("Displacement", Range (0, 1.0)) = 1.0

_ShakeTime ("Shake Time", Range (0, 1.0)) = 1.0

_ShakeWindspeed ("Shake Windspeed", Range (0, 1.0)) = 1.0

_ShakeBending ("Shake Bending", Range (0, 1.0)) = 1.0

}

SubShader {

Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}

LOD 200

CGPROGRAM

#pragma target 3.0

#pragma surface surf Lambert alphatest:_Cutoff vertex:vert addshadow

sampler2D _MainTex;

sampler2D _Illum;

fixed4 _Color;

float _ShakeDisplacement;

float _ShakeTime;

float _ShakeWindspeed;

float _ShakeBending;

struct Input {

float2 uv_MainTex;

float2 uv_Illum;

};

void FastSinCos (float4 val, out float4 s, out float4 c) {

val = val * 6.408849 - 3.1415927;

float4 r5 = val * val;

float4 r6 = r5 * r5;

float4 r7 = r6 * r5;

float4 r8 = r6 * r5;

float4 r1 = r5 * val;

float4 r2 = r1 * r5;

float4 r3 = r2 * r5;

float4 sin7 = {1, -0.16161616, 0.0083333, -0.00019841} ;

float4 cos8 = {-0.5, 0.041666666, -0.0013888889, 0.000024801587} ;

s = val + r1 * sin7.y + r2 * sin7.z + r3 * sin7.w;

c = 1 + r5 * cos8.x + r6 * cos8.y + r7 * cos8.z + r8 * cos8.w;

}

void vert (inout appdata_full v) {

float factor = (1 - _ShakeDisplacement - v.color.r) * 0.5;

const float _WindSpeed = (_ShakeWindspeed + v.color.g );

const float _WaveScale = _ShakeDisplacement;

const float4 _waveXSize = float4(0.048, 0.06, 0.24, 0.096);

const float4 _waveZSize = float4 (0.024, .08, 0.08, 0.2);

const float4 waveSpeed = float4 (1.2, 2, 1.6, 4.8);

float4 _waveXmove = float4(0.024, 0.04, -0.12, 0.096);

float4 _waveZmove = float4 (0.006, .02, -0.02, 0.1);

float4 waves;

waves = v.vertex.x * _waveXSize;

waves += v.vertex.z * _waveZSize;

waves += _Time.x * (1 - _ShakeTime * 2 - v.color.b ) * waveSpeed *_WindSpeed;

float4 s, c;

waves = frac (waves);

FastSinCos (waves, s,c);

float waveAmount = v.texcoord.y * (v.color.a + _ShakeBending);

s *= waveAmount;

s *= normalize (waveSpeed);

s = s * s;

float fade = dot (s, 1.3);

s = s * s;

float3 waveMove = float3 (0,0,0);

waveMove.x = dot (s, _waveXmove);

waveMove.z = dot (s, _waveZmove);

v.vertex.xz -= mul ((float3x3)_World2Object, waveMove).xz;

}

void surf (Input IN, inout SurfaceOutput o) {

fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;

o.Albedo = c.rgb;

o.Emission = c.rgb * tex2D(_Illum, IN.uv_Illum).a;

o.Alpha = c.a;

}

ENDCG

}

Fallback "Transparent/Cutout/VertexLit"

}

Click to expand...

AustinRichards said: ↑

Today I put together a shader that will make grass + trees move as if in the wind, without having anything to do with the terrain. It's base is the Transparent Cutout Diffuse shader. I figured I'd share it with you guys since I spent weeks looking for a good shader like this with no success, so I made it myself.

Here is a video of the shader in action, in scene view applied to the leaf material of this tree:
http://gyazo.com/0507d1048ead73b6b1cb0c3c6b7a96da.mp4

The wind is customizable on each material so you can have the desired amount of movement.
View attachment 88902

There are TWO versions of the shader. The 1st one is similar to the Transparent Cutout Diffuse shader. the 2nd one has Illumination. It gives it a different look, some may prefer the second one for their tree leaves.

Here is the 1st One:

Code (csharp):

Shader "Transparent/Cutout/Diffuse Shake" {

Properties {

_Color ("Main Color", Color) = (1,1,1,1)

_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}

_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5

_ShakeDisplacement ("Displacement", Range (0, 1.0)) = 1.0

_ShakeTime ("Shake Time", Range (0, 1.0)) = 1.0

_ShakeWindspeed ("Shake Windspeed", Range (0, 1.0)) = 1.0

_ShakeBending ("Shake Bending", Range (0, 1.0)) = 1.0

}

SubShader {

Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}

LOD 200

CGPROGRAM

#pragma target 3.0

#pragma surface surf Lambert alphatest:_Cutoff vertex:vert addshadow

sampler2D _MainTex;

fixed4 _Color;

float _ShakeDisplacement;

float _ShakeTime;

float _ShakeWindspeed;

float _ShakeBending;

struct Input {

float2 uv_MainTex;

};

void FastSinCos (float4 val, out float4 s, out float4 c) {

val = val * 6.408849 - 3.1415927;

float4 r5 = val * val;

float4 r6 = r5 * r5;

float4 r7 = r6 * r5;

float4 r8 = r6 * r5;

float4 r1 = r5 * val;

float4 r2 = r1 * r5;

float4 r3 = r2 * r5;

float4 sin7 = {1, -0.16161616, 0.0083333, -0.00019841} ;

float4 cos8 = {-0.5, 0.041666666, -0.0013888889, 0.000024801587} ;

s = val + r1 * sin7.y + r2 * sin7.z + r3 * sin7.w;

c = 1 + r5 * cos8.x + r6 * cos8.y + r7 * cos8.z + r8 * cos8.w;

}

void vert (inout appdata_full v) {

float factor = (1 - _ShakeDisplacement - v.color.r) * 0.5;

const float _WindSpeed = (_ShakeWindspeed + v.color.g );

const float _WaveScale = _ShakeDisplacement;

const float4 _waveXSize = float4(0.048, 0.06, 0.24, 0.096);

const float4 _waveZSize = float4 (0.024, .08, 0.08, 0.2);

const float4 waveSpeed = float4 (1.2, 2, 1.6, 4.8);

float4 _waveXmove = float4(0.024, 0.04, -0.12, 0.096);

float4 _waveZmove = float4 (0.006, .02, -0.02, 0.1);

float4 waves;

waves = v.vertex.x * _waveXSize;

waves += v.vertex.z * _waveZSize;

waves += _Time.x * (1 - _ShakeTime * 2 - v.color.b ) * waveSpeed *_WindSpeed;

float4 s, c;

waves = frac (waves);

FastSinCos (waves, s,c);

float waveAmount = v.texcoord.y * (v.color.a + _ShakeBending);

s *= waveAmount;

s *= normalize (waveSpeed);

s = s * s;

float fade = dot (s, 1.3);

s = s * s;

float3 waveMove = float3 (0,0,0);

waveMove.x = dot (s, _waveXmove);

waveMove.z = dot (s, _waveZmove);

v.vertex.xz -= mul ((float3x3)_World2Object, waveMove).xz;

}

void surf (Input IN, inout SurfaceOutput o) {

fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;

o.Albedo = c.rgb;

o.Alpha = c.a;

}

ENDCG

}

Fallback "Transparent/Cutout/VertexLit"

}

2nd one with Illumination:

Code (csharp):

Shader "Transparent/Cutout/Self Illum Diffuse Shake" {

Properties {

_Color ("Main Color", Color) = (1,1,1,1)

_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}

_Illum ("Illumin (A)", 2D) = "white" {}

_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5

_ShakeDisplacement ("Displacement", Range (0, 1.0)) = 1.0

_ShakeTime ("Shake Time", Range (0, 1.0)) = 1.0

_ShakeWindspeed ("Shake Windspeed", Range (0, 1.0)) = 1.0

_ShakeBending ("Shake Bending", Range (0, 1.0)) = 1.0

}

SubShader {

Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}

LOD 200

CGPROGRAM

#pragma target 3.0

#pragma surface surf Lambert alphatest:_Cutoff vertex:vert addshadow

sampler2D _MainTex;

sampler2D _Illum;

fixed4 _Color;

float _ShakeDisplacement;

float _ShakeTime;

float _ShakeWindspeed;

float _ShakeBending;

struct Input {

float2 uv_MainTex;

float2 uv_Illum;

};

void FastSinCos (float4 val, out float4 s, out float4 c) {

val = val * 6.408849 - 3.1415927;

float4 r5 = val * val;

float4 r6 = r5 * r5;

float4 r7 = r6 * r5;

float4 r8 = r6 * r5;

float4 r1 = r5 * val;

float4 r2 = r1 * r5;

float4 r3 = r2 * r5;

float4 sin7 = {1, -0.16161616, 0.0083333, -0.00019841} ;

float4 cos8 = {-0.5, 0.041666666, -0.0013888889, 0.000024801587} ;

s = val + r1 * sin7.y + r2 * sin7.z + r3 * sin7.w;

c = 1 + r5 * cos8.x + r6 * cos8.y + r7 * cos8.z + r8 * cos8.w;

}

void vert (inout appdata_full v) {

float factor = (1 - _ShakeDisplacement - v.color.r) * 0.5;

const float _WindSpeed = (_ShakeWindspeed + v.color.g );

const float _WaveScale = _ShakeDisplacement;

const float4 _waveXSize = float4(0.048, 0.06, 0.24, 0.096);

const float4 _waveZSize = float4 (0.024, .08, 0.08, 0.2);

const float4 waveSpeed = float4 (1.2, 2, 1.6, 4.8);

float4 _waveXmove = float4(0.024, 0.04, -0.12, 0.096);

float4 _waveZmove = float4 (0.006, .02, -0.02, 0.1);

float4 waves;

waves = v.vertex.x * _waveXSize;

waves += v.vertex.z * _waveZSize;

waves += _Time.x * (1 - _ShakeTime * 2 - v.color.b ) * waveSpeed *_WindSpeed;

float4 s, c;

waves = frac (waves);

FastSinCos (waves, s,c);

float waveAmount = v.texcoord.y * (v.color.a + _ShakeBending);

s *= waveAmount;

s *= normalize (waveSpeed);

s = s * s;

float fade = dot (s, 1.3);

s = s * s;

float3 waveMove = float3 (0,0,0);

waveMove.x = dot (s, _waveXmove);

waveMove.z = dot (s, _waveZmove);

v.vertex.xz -= mul ((float3x3)_World2Object, waveMove).xz;

}

void surf (Input IN, inout SurfaceOutput o) {

fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;

o.Albedo = c.rgb;

o.Emission = c.rgb * tex2D(_Illum, IN.uv_Illum).a;

o.Alpha = c.a;

}

ENDCG

}

Fallback "Transparent/Cutout/VertexLit"

}

Click to expand...

Do i just create a new c# and delete everthing inside it and then paste one of your scripts on it?

Ive tried that but it didnt work

How do i get it to work?

Will-D-Ramsey · Mar 9, 2019

Im trying to adjust the shader so it doesnt move the very bottom of the mesh. This is so the base of the grass or branch doesnt move, since it doesnt irl. Ill keep trying but im new to shaders and any ideas would be greatly appreciated.

Firlefanz73 · Mar 21, 2019

sarahnorthway said: ↑

I had trouble using this shader with batching in Unity 2017.3. When Unity adds or removes a sprite to the batch, it changes the local position (v.vertex) which is used in the wave calculation. So any time a piece of grass moves offscreen, the other sprites in the batch change to a different wave orientation.

Fixed by using world position to determine wave size, and by including Y axis when adjusting waveMove to world position. I also use transparent edges instead of an alpha cutoff.

Updated shader:

Code (CSharp):

// Unity built-in shader source. Copyright (c) 2016 Unity Technologies. MIT license (see license.txt)

// from 2017.1.1 built-in Sprites-Diffuse Shader

// and https://forum.unity.com/threads/shader-moving-trees-grass-in-wind-outside-of-terrain.230911/

Shader "Northway/SpritesDiffuseWave" {

Properties {

[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}

_Color ("Tint", Color) = (1,1,1,1)

[MaterialToggle] PixelSnap ("Pixel snap", Float) = 0

[HideInInspector] _RendererColor ("RendererColor", Color) = (1,1,1,1)

[HideInInspector] _Flip ("Flip", Vector) = (1,1,1,1)

[PerRendererData] _AlphaTex ("External Alpha", 2D) = "white" {}

[PerRendererData] _EnableExternalAlpha ("Enable External Alpha", Float) = 0

_ShakeDisplacement ("Displacement", Range (0, 1.0)) = 1.0

_ShakeTime ("Shake Time", Range (0, 1.0)) = 1.0

_ShakeWindspeed ("Shake Windspeed", Range (0, 1.0)) = 1.0

_ShakeBending ("Shake Bending", Range (0, 1.0)) = 1.0

}

SubShader {

Tags {

"Queue"="Transparent"

"IgnoreProjector"="True"

"RenderType"="Transparent"

"PreviewType"="Plane"

"CanUseSpriteAtlas"="True"

}

Cull Off

Lighting Off

ZWrite Off

Blend One OneMinusSrcAlpha

CGPROGRAM

#pragma surface surf Lambert vertex:vert nofog nolightmap nodynlightmap keepalpha noinstancing

#pragma multi_compile _ PIXELSNAP_ON

#pragma multi_compile _ ETC1_EXTERNAL_ALPHA

#include "UnitySprites.cginc"

float _ShakeDisplacement;

float _ShakeTime;

float _ShakeWindspeed;

float _ShakeBending;

struct Input {

float2 uv_MainTex;

fixed4 color;

};

void FastSinCos (float4 val, out float4 s, out float4 c) {

val = val * 6.408849 - 3.1415927;

float4 r5 = val * val;

float4 r6 = r5 * r5;

float4 r7 = r6 * r5;

float4 r8 = r6 * r5;

float4 r1 = r5 * val;

float4 r2 = r1 * r5;

float4 r3 = r2 * r5;

float4 sin7 = {1, -0.16161616, 0.0083333, -0.00019841} ;

float4 cos8 = {-0.5, 0.041666666, -0.0013888889, 0.000024801587} ;

s = val + r1 * sin7.y + r2 * sin7.z + r3 * sin7.w;

c = 1 + r5 * cos8.x + r6 * cos8.y + r7 * cos8.z + r8 * cos8.w;

}

void vert (inout appdata_full v, out Input o) {

v.vertex.xy *= _Flip.xy;

#if defined(PIXELSNAP_ON)

v.vertex = UnityPixelSnap (v.vertex);

#endif

float4 color = v.color;

// waving

float factor = (1 - _ShakeDisplacement - color.r) * 0.5;

const float _WindSpeed = (_ShakeWindspeed + color.g );

const float _WaveScale = _ShakeDisplacement;

const float4 _waveXSize = float4(0.048, 0.06, 0.24, 0.096);

const float4 _waveZSize = float4 (0.024, .08, 0.08, 0.2);

const float4 waveSpeed = float4 (1.2, 2, 1.6, 4.8);

float4 _waveXmove = float4(0.024, 0.04, -0.12, 0.096);

float4 _waveZmove = float4 (0.006, .02, -0.02, 0.1);

float3 worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;

float4 waves;

waves = worldPos.x * _waveXSize;

waves += worldPos.z * _waveZSize;

waves += _Time.x * (1 - _ShakeTime * 2 - v.color.b ) * waveSpeed *_WindSpeed;

waves = frac (waves);

float4 s, c;

FastSinCos (waves, s,c);

float waveAmount = v.texcoord.y * (color.a + _ShakeBending);

s *= waveAmount;

s *= normalize (waveSpeed);

s = s * s;

float fade = dot (s, 1.3);

s = s * s;

float3 waveMove = float3 (0,0,0);

waveMove.x = dot (s, _waveXmove);

waveMove.z = dot (s, _waveZmove);

v.vertex.xyz -= mul(unity_WorldToObject, waveMove).xyz;

UNITY_INITIALIZE_OUTPUT(Input, o);

o.color = v.color * _Color * _RendererColor;

}

void surf (Input IN, inout SurfaceOutput o) {

fixed4 c = SampleSpriteTexture (IN.uv_MainTex) * IN.color;

o.Albedo = c.rgb * c.a;

o.Alpha = c.a;

}

ENDCG

}

Fallback "Transparent/VertexLit"

}

Click to expand...

Hello Sarah,

thanks a lot for your Version of the shader. I tried different grass shaders, but this Version is for my usecase really great.

I just have one Question, Maybe you can help me with because I am not a shader expert:

I am using a textureatlas for different grass textures, I have 8x8 textures on one atlas.

For each grass I have an own mesh with some simple planes, that Point to the desired part of the Atlas for different grasses.

With your Version of the shader this Looks really perfect on some of them! But some move extremly strong now, others do not. Can you tell me how to get them all move the same, so having Kind of Modulo calculation for this depending on the width and height of a part or the number of colums and rows?

Can anybody add this to this Version please? That would help me a lot!

Thanks

Firlefanz73 · Mar 21, 2019

PS: I tried to Modulo the part with the Texturecoordinates but now it does not move/shake at all anymore. I have 8x8 grass textures in my textureatlas.
float waveAmount = fmod(v.texcoord.y, 0.125) * (color.a + _ShakeBending);

And I just realized the grass does not set a shadow?

-> works better with v.vertex.y. I guess I can find a solution with that, thanks!

briancullen13 · Nov 29, 2019

Will-D-Ramsey said: ↑

Im trying to adjust the shader so it doesnt move the very bottom of the mesh. This is so the base of the grass or branch doesnt move, since it doesnt irl. Ill keep trying but im new to shaders and any ideas would be greatly appreciated.
Click to expand...

We are trying to figure out how to stop the sliding of the base of the sprite in play mode - seems to be anchored in the editor - did you have any luck?

RR7 · Jun 16, 2020

has anyone been able to build this in shader graph? i tried but i must be misunderstanding something as soon as i set the position it just vanishes

TheSwanCollective · Nov 18, 2020

Renan-Bomtempo said: ↑

Hello everyone.
I'm one year into the world of Game Development, and I'm currently working on my second game.
I needed a shader that I could use to simulate wind on Low Poly Assests (Trees, grass, etc), but I couldn't find one.

But then, I found AustinRichards's shader and thought it would be usefull for my project. I was having a problem that it would rip my mesh appart while manipulating its vertices, and so I abandoned it and went on to develop my own Vertex/Fragment Shader.
I was sucessful on manipulating the vertices the way I wanted in the Vertex Shader, but I couldn't get the lighting to work correctly.

So then, I went back to AustinRichards's shader and decided to use it as a base for my Shader. After some tweaking I finally got it to work both on manipulating the vertices and correctly illuminating the assets.

I'm currently improving some other aspects of it. But when I'm done, I plan on making it available for anyone who wants to use it.

So I'm here to thank this thread and specially AustinRichards for sharing he's shader, that made it possible for me to learn more about Shader programming and to develop one.

Note: This is the result I achieved so far: View attachment 239485
Click to expand...

Did you ever come around to release your wonderful shader to the public? Thanks in advance Renan!

scarletsnake · Oct 5, 2023

I hope I'm not necro-posting but even if I am, this post and all the contributions are really valuable to anyone who uses the built-in renderer like me. Thank you, all of you, who have contributed to the creation of this wonderful shader. If everything goes as planned, this will be the primary vegetation shader in my game, Scarlet Rain. There's also a lot to learn by dissecting the code and learning what does what. You guys and gals are the best!

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