There were no responses in the German thread so let's try it in English:
I am trying to scale/tile an entity's skin during runtime. The following code is what I thought should work, but despite not creating any errors it does not affect the scale at all :
Code:

---

function mtl_scale_init;
material mtl_scale
{
 event=mtl_scale_init; // init function
 effect="
 texture entSkin1; // first entity skin
 matrix  matmtl;   // default texture matrix

 // default technique
 technique scaleTex
 {
    pass P0
    {
         // bind skin to tex1 and modulate with color
         Texture[0] = <entSkin1>;
	//use texture matrix
	TexCoordIndex[0]=0;
	TextureTransform[0]=<matmtl>;
	TextureTransformFlags[0] = Count2; //2d texture
	AddressU[0]=wrap;			
	AddressV[0]=wrap;			
         ColorArg1[0] = Diffuse; //just a lit texture
         ColorOp[0] = Modulate2x;
         ColorArg2[0] = Texture;
     }
 }
";
}

// init function sets scaling
function mtl_scale_init
{
  mtl_scale.matrix11=float(8); // *8 in u,v direction
  mtl_scale.matrix22=float(8); 
}

---

When replacing
Code:

---

TextureTransform[0]=<matmtl>;

---

with the resulting matrix though it works as expected:
Code:

---

TextureTransform[0]=
{8,0,0,0,0,8,0,0, 
0,0,0,0,0,0,0,0 };

---

Why ?