I'm a shader newbie, and i were trying to program a simple vertex shader just for test. The shader works, but after the level loads and the camera is loaded, all the objects using that material get a beautiful flat grey... and i'm sure that the shader's parameters aren't modified by starters or other functions...
Here's the code:
Code:

---

 

material mat_test
{
	effect = "
	
	matrix matWorldViewProj;
	matrix matWorld;
	
	texture entSkin1; // 
	texture entSkin2; //
	dword mtlSkill1;
	
	vector vecLight;
	
	vector vecViewDir;
	
	// default technique
	technique test
	{
		pass P0
		{
			VertexShaderConstant[0]=<matWorldViewProj>;
			VertexShaderConstant[4]=<matWorld>;
			VertexShaderConstant[10]= <vecLight>;
			VertexShaderConstant[15]= <vecViewDir>;
									
			Texture[0] = <entSkin1>;
			Texture[1] = <entSkin2>;
			
			VertexShader = asm

				vs.1.1
				
                                dcl_position v0
			        dcl_normal v3
				dcl_texcoord0 v7                             

				def c16, 0, 175, 175, 100
				def c20, 175, 0.011,0,0
				
				m4x4 oPos, v0,c0
				
				sub r0, v3, -c15   

				mul r0, r0, c16

				mul oD0, r0, c20.yyyy   			
			};
			
		}
	}
	
	
	technique fallback
	{
		pass P0
		{
			// set texture stage states
			Texture[0] = <entSkin1>;
			ColorArg1[0] = Texture; // stage 0 = skin texture
			ColorOp[0] = Modulate2x;
			ColorArg2[0] = Diffuse; // modulate by lighting
		}
	}
	"; // end of the effect string
}


 

---

There are some useless things, and the shader itself it's useless, but someone has an idea of because it becomes flat grey after camera loading?
Thanks, Tommo