I forget the different states, but look at these:

AddressU = Clamp; // don't wrap around edges
AddressV = Clamp; // don't wrap around edges


Edit: which you just did! Cool.


As for the tiling, you will have to revisit your coordinates in the lines:
tps = mul(Pos, matMtl) * 0.01f;
tps = (tps * 0.5f) + 0.5f;

I have not done anything similar in a year or so, so I am not sure what formulas you should try.

ok thanks .. it works....

but now my next problem:

the projected picture must be smaller in the near than in the far distance like a flashlight.
how can i solve this problem?

screenshot:


the code:
Code:

---

 

//--------------------------------------------------------------
//		Texture Projection Shader HLSL
//
//			© by zSteam
//
//		date: 19.10.2007
// -------------------------------------------------------------

float4x4 matWorldViewProj;
float4x4 matMtl;

struct VS_OUTPUT
{
	float4 Pos	: POSITION;
	float2 texCoord : TEXCOORD0;
	float3 lightVec : TEXCOORD1;
};

VS_OUTPUT mainVS( float4 Pos : POSITION, float2 texCoord : TEXCOORD0 )
{
	VS_OUTPUT Out = (VS_OUTPUT) 0; 

	Out.Pos = mul(Pos, matWorldViewProj);

	float2 tps = (mul(Pos, matMtl) * 0.005f) + 0.5f; // ? und korrektur der position des projizierten bildes

	Out.texCoord = tps;
	Out.lightVec.xy = texCoord.xy;

	return Out;
}

texture entSkin1;
texture mtlSkin1;

sampler BaseTex = sampler_state
{
	Texture = <entSkin1>;
	MinFilter = Linear;
	MagFilter = Linear;
	MipFilter = Linear;
	AddressU  = wrap;
	AddressV  = wrap;
};

sampler ProjTex = sampler_state
{
	Texture = <mtlSkin1>;
	MinFilter = Linear;
	MagFilter = Linear;
	MipFilter = Linear;
	AddressU  = clamp;
	AddressV  = clamp;
};

float4 mainPS(float2 texCoord : TEXCOORD0, float2 lightVec : TEXCOORD1 ) : COLOR
{
	float4 base = tex2D( BaseTex, lightVec );
	float4 proj = tex2D( ProjTex, texCoord ) * 4;

	return (base + 0.1 * proj);
}

technique projector
{
	pass p1
	{
		VertexShader = compile vs_1_1 mainVS();
		PixelShader = compile ps_1_1 mainPS();
	}
}

technique fallback { pass one { } }
 

---

your projection matrix is orthographic, not perspective.

hi

i'm a shader noob...
do you mean float4x4 matWorldViewProj;?
what must i change to improve the shader?

here is a compiled demo:
Texture Projection Shader.exe

The file has no virus in it, I have checked it with my anti-virus software.
think that your software has got a failure.

Small Sidenote: If it's packed with Nacasi, some Virus Scanner will detect it as Trojan but it's not.