Here is that what i have already done, but somewhere inthe deep of this script is a mistake i made and do not find...if someone of u do i would be really happy

script:
Code:

---

//definitions
bmap tertex1 = <veg065.pcx>;
bmap tertex2 = <ground018.pcx>;
bmap TerMap = <terrain_map.tga>;

define belongTo,skill5;
define friend,1;
define enemy,2;

define visibleRange,skill6;

entity* fowTer;
bmap* tempMap;

var fowMapArray[16384];//128x128
var oldFowMapArray[16384];
var fowMapSize = 128;
var terrainPxSize;
////////////////////////////////
material matFowTer
{
	skin1 = tertex1;
	skin2 = tertex2;
	skin3 = TerMap;
	effect="fowt.fx";
}

panel just_a_test
{
	flags=visible;
}

function painMap
{
	var tempPos[2];
	var pixel;
	var format;
	tempMap=bmap_for_entity(fowTer,4);
	format = bmap_lock(tempMap,0);
	while(tempPos.y<fowMapSize)
	{
		if(fowMapArray[(fowMapSize-1)*tempPos.y+tempPos.x]!=oldFowMapArray[(fowMapSize-1)*tempPos.y+tempPos.x])
		{
			temp=255*((fowMapSize-1)*tempPos.y+tempPos.x);
			pixel = pixel_for_vec(vector(temp,temp,temp),100,format);
			pixel_to_bmap(tempMap,tempPos.x,tempPos.y,pixel);
		}
		tempPos.x+=1;
		if(tempPos.x>fowMapSize)
		{
			tempPos.x=0;
			tempPos.y+=1;
		}
	}
	bmap_unlock(tempMap);
	just_a_test.bmap = tempMap;
}

function check_fow
{
	var tempPos[2];
	var targetPos[2];
	var tempRange;
	while(1)
	{
		you=ent_next(null);
		while(you!=null)
		{
			if(your.belongTo == friend)
			{
				if(your.visibleRange==0)
				{
					vec_Set(camera.x,your.x);
					camera.z+=200;
					camera.tilt=-90;
					your.light = on;
					your.red=255;
					your.green=0;
					your.blue=0;
					your.scale_x = 2;
					your.scale_y = 2;
					your.scale_z = 2;
					error("unit don't have a visibleRange");
					freeze_mode=2;
					
				}
				tempRange = int(your.visibleRange/terrainPxSize+0.5);
				targetPos.x = (your.x-fowTer.min_x)/terrainPxSize-tempRange;//xpos
				targetPos.y = (your.y-fowTer.min_y)/terrainPxSize-tempRange;//y
				while(tempPos.y<=tempRange*2)
				{
					temp.x=targetPos.x+tempPos.x;
					temp.y=targetPos.y+tempPos.y;
					breakpoint;
					if(vec_dist(vector(tempRange.x,tempRange.y,0),vector(temp.x,temp.y,0))<=tempRange)
					{
						fowMapArray[fowMapSize*temp.y+temp.x]=1;
					}
					tempPos.x+=1;
					if(tempPos.x>tempRange*2)
					{
						tempPos.x=0;
						tempPos.y+=1;
					}
				}
			}
			you = ent_next(you);
		}
		painMap();
		wait(1);
	}
}

action fow_terrain
{
	fowTer=me;
	terrainPxSize = (my.max_x-my.min_x)/fowMapSize;//now u have the size of a pixel in quants
	my.material = matFowTer;
	check_fow();
}

---

shader:
Code:

---

float4x4 matWorldViewProj;

texture entSkin1;
texture entSkin2;
texture entSkin3;
texture entSkin4;
texture mtlSkin1;
texture mtlSkin2;
texture mtlSkin3;

sampler2D textur1 = sampler_state {Texture=<entSkin1>;};
sampler2D textur2 = sampler_state {Texture=<entSkin2>;};
sampler2D textur3 = sampler_state {Texture=<entSkin3>;};
sampler2D textur4 = sampler_state {Texture=<mtlSkin1>;};
sampler2D textur5 = sampler_state {Texture=<mtlSkin2>;};
sampler2D terrainMap = sampler_state {Texture=<mtlSkin3>;};
sampler2D fowMap = sampler_state {Texture=<entSkin4>;};

void terrainVS(	in float4 pos		:POSITION,
		in float2 Tex		:TEXCOORD0,
		out float4 opos		:POSITION,
		out float2 texcrd	:TEXCOORD0)
{
	opos=mul(pos,matWorldViewProj);
	texcrd=Tex;
}

float4 terrainPS(in float2 texcrd:TEXCOORD0):COLOR
{
	float4 tex1 = tex2D(textur1,texcrd*20);
	float4 tex2 = tex2D(textur2,texcrd*20);
	float4 tex3 = tex2D(textur3,texcrd*20);
	float4 tex4 = tex2D(textur4,texcrd*20);
	float4 tex5 = tex2D(textur5,texcrd*20);
	float4 visible = tex2D(terrainMap,texcrd);
	float4 fow = tex2D(fowMap,texcrd);
	tex1 = lerp(tex1,tex2,visible.r);
	tex1 = lerp(tex1,tex3,visible.g);
	tex1 = lerp(tex1,tex4,visible.b);
	tex1 = lerp(tex1,tex5,1-visible.w);
	return tex1*fow;
}

technique
{
	pass p0
	{
		vertexShader = compile vs_2_0 terrainVS();
		pixelShader = compile ps_2_0 terrainPS();
	}
}

---