No prob, man. Glad that you are taking a keen interest in these things Rigoletto.

Okay.... if it helps anyone else, here is some code to spark ideas.

What is it??:
An example to allow a bit of user interaction with a material effect applied to level geometry.
This example is very simple; It shows a bit of scaling and shifting of the block texture.

Code:

---

 

//////////////////////////////////////////////////
// Example of adjusting the material.matrix
// while using an FX file on _Level Geometry_.
// Enlists the help of a Starter Function to
// call additional functions.
//
// Here we adjust the scale with key 2, or key 4
// And also make it scroll in a direction.
//
// Eric Hendrickson-Lambert (Steempipe)
//
// 4/26/04: 	-Put into operation
//
// Todo:  	-Add more examples, etc.
//        	-Tighten up code
//

var d3d_automaterial=1;


//bind <ffp_scale.fx>;


// Material assignment for the level geometry
// The name of the texture in WED.
material floor_one 
{

// Because my effect file is not too long,
// I will just use the effect string inside the material.
// NOTE:  If you use <effect_load>, then take
// the effect string out of here.

effect = "

matrix matMtl; 
texture entSkin1;

technique one 
{ 

  pass p0 
    { 

    Texture[0] = <entSkin1>;

    TextureTransformFlags[0] = Count2; 
    TexCoordIndex[0]=0;  //1

    TextureTransform[0] = <matMtl>; 


    Colorop[0] = Modulate;
    ColorArg1[0]=Texture;
    ColorArg2[0] = Diffuse;

    } 
  } 
";

}


function load_shader()
{
//effect_load(floor_one,"ffp_scale.fx");
wait(1);
}


function scale_x2() {

floor_one.matrix11 = float(2);
floor_one.matrix22 = float(2);

};
			
function scale_x4() {

floor_one.matrix11 = float(4);
floor_one.matrix22 = float(4);

};


function scroll_tex() {

floor_one.skill1 -= time;
floor_one.matrix31 = floatd(floor_one.skill1,500); 
floor_one.matrix32 = floatd(floor_one.skill1,500);

}


starter floor_init {

// Set a default texture scale
//
floor_one.matrix11 = float(1);
floor_one.matrix22 = float(1);

//floor_one.skill1 = 50;

// Pressing key 2 will scale texture x2
// Pressing key 4 will scale texture x4
while(1)
    {
	if (key_2) { scale_x2(); };

	if (key_4) {scale_x4(); };

	scroll_tex();

	wait(1);
    }

}


 

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