Hey guys,
Ive been trying to get a fur shader from the 3DGS Wiki working but it doesnt seem to want to .

Does anyone have a proper working fur shader script?

Thanks,

I suppose it's an old DX8 shader, not? This would explain why it doesn't work.

Can someone recommend me a Fur shader. If so that would be sweet

basically it would look like this:

Code:

---

  
float4x4 matWorldViewProj;

void mainVS(
in float4 position:POSITION,
in float4 normal:NORMAL,
in float2 texCoord:TEXCOORD0,
out float4 pos:POSITION,
out float4 nrm:COLOR0,
out float2 oT0:TEXCOORD0,
uniform float offset
) {
	position.xyz+=normal.xyz*offset/100; //scale vertexposition in normals direction
	pos=mul(position,matWorldViewProj);
	nrm=normal;
	oT0=texCoord*14; //scale for fur density
}

texture mtlSkin1;

sampler noiseMap=sampler_state {
	texture=(mtlSkin1);
};

float4 mainPS(
in float4 nrm:COLOR0,
in float2 texCoord:TEXCOORD0,
uniform float alpha
) : COLOR
{
	float4 noise=tex2D(noiseMap,texCoord);
	noise.a=alpha*noise.r;
	return noise;
}

technique test1
{
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(1);
		PixelShader=compile ps_1_4 mainPS(1); 
                //you could use another pixelShader here which picks the modelTexture
	}
        //fur part:
	pass p0
	{
		CullMode=0;
		AlphaBlendEnable=1;
		BlendOp=1;
		srcBlend=3;
		destBlend=7;
		VertexShader=compile vs_1_1 mainVS(10);
		PixelShader=compile ps_1_4 mainPS(0.9);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(11);
		PixelShader=compile ps_1_4 mainPS(0.8);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(12);
		PixelShader=compile ps_1_4 mainPS(0.7);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(13);
		PixelShader=compile ps_1_4 mainPS(0.6);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(14);
		PixelShader=compile ps_1_4 mainPS(0.5);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(15);
		PixelShader=compile ps_1_4 mainPS(0.4);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(16);
		PixelShader=compile ps_1_4 mainPS(0.3);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(17);
		PixelShader=compile ps_1_4 mainPS(0.2);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(18);
		PixelShader=compile ps_1_4 mainPS(0.1);
	}
}

---

while the number of passes and the given values there depend on your preffered smoothness of the fur.

i used a noise texture but you could also set up a texturemap for the furparts

btw: someone may know better blendStates for this

Wow, works great, is there a way to make the fur more thicker(taller)?

Nevermind, I found it. Ello, your a LEGEND :D:D

Thanks heaps dude this shader works perfectly. But I was wondering, is there a way to make fur appear in the colour of the skin? Like in other fur shaders.

yes, just use the entities basic skin. say you have your texture in entSkin1 then you have to multiply it with the fur-texture (for example entSkin2). pixelshader would then look like:

Code:

---

float4 furPS(
in float4 nrm:COLOR0,
in float2 texCoord:TEXCOORD0,
uniform float alpha
) : COLOR
{
	float4 base=tex2D(basemap,texCoord); //entskin1 sampler	
        float4 fur=tex2D(furmap,texCoord); //entskin2 sampler
        float4 result=base*fur;
	result.a=alpha*noise.r;
	return ;
}

---

thus you can set up the fur structure in the second skin and the coloring from the first skin

but still you may need other blendStates

Ello would you please be so kind as to tell me, how to implement this shader? I'm trying to get it to work with a terrain entity, but i get errors telling me mtlSkin1 ; local variables must be numeric AND object literals are not allowed inside functions AND 'noiseMap' local variables must be numeric ...
I know i use a messed up combination of the wiki shader and your shader thing, but it gives errors I don't know what to do with ....

Code:

---

 bmap bmp_fur=<fur.tga>;

function mtl_fur_init
{
        mtl.skill1=float(0.2);  // first_shell_brightness
        mtl.skill2=float(0.04); // brightness_increment
        bmap_to_mipmap(mtl.skin1);
}

material mtl_fur
{
        event=mtl_fur_init;
        //skin1=bmp_fur;
        effect = "
        
        float4x4 matWorldViewProj;
void mainVS(
			in float4 position:POSITION,
         in float4 normal:NORMAL,
         in float2 texCoord:TEXCOORD0,
         out float4 pos:POSITION,
         out float4 nrm:COLOR0,
         out float2 oT0:TEXCOORD0,
         uniform float offset
           ) {
	      position.xyz+=normal.xyz*offset/100; //scale vertexposition in normals direction
	      pos=mul(position,matWorldViewProj);
	      nrm=normal;
	      oT0=texCoord*14; //scale for fur density
         
texture mtlSkin1;

sampler noiseMap=sampler_state 
{
	texture=(mtlSkin1);
};

float4 mainPS(in float4 nrm:COLOR0,in float2 texCoord:TEXCOORD0,
uniform float alpha
) : COLOR
{
	float4 noise=tex2D(noiseMap,texCoord);
	noise.a=alpha*noise.r;
	return noise;
}

technique test1
{
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(1);
		PixelShader=compile ps_1_4 mainPS(1); 
                //you could use another pixelShader here which picks the modelTexture
	}
        //fur part:
	pass p0
	{
		CullMode=0;
		AlphaBlendEnable=1;
		BlendOp=1;
		srcBlend=3;
		destBlend=7;
		VertexShader=compile vs_1_1 mainVS(10);
		PixelShader=compile ps_1_4 mainPS(0.9);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(11);
		PixelShader=compile ps_1_4 mainPS(0.8);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(12);
		PixelShader=compile ps_1_4 mainPS(0.7);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(13);
		PixelShader=compile ps_1_4 mainPS(0.6);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(14);
		PixelShader=compile ps_1_4 mainPS(0.5);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(15);
		PixelShader=compile ps_1_4 mainPS(0.4);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(16);
		PixelShader=compile ps_1_4 mainPS(0.3);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(17);
		PixelShader=compile ps_1_4 mainPS(0.2);
	}
	pass p0
	{
		VertexShader=compile vs_1_1 mainVS(18);
		PixelShader=compile ps_1_4 mainPS(0.1);
	}
}
";
}



action fur
{
        my.skill41=float(0.16); // shell_distance
        my.skill43=float(12);   // fur_u_scale
        my.skill44=float(12);   // fur_v_scale
        my.material=mtl_fur;
} 

---

First thing I notice is that there is a missing '}' at the end of mainVS. This could be the cause for all the other errors in itself (the "texture mtlSkin1" is inside of mainVS because of the missing bracket, thus the mtlskin error.... etc).

-Rhuarc

additional to what rhuarc told you, you could try to use it in a external .fx-file.

i dont know if it wasa only a temporaly bug, but long shaders dont work if they are embeded directly into the wdl