I want to use the bump.fx from the code folder of gamestudio. I have commercial edition and the code below. But when I change any of the values, diffuse, specular, ambient or emissive, I don't see any different. I don't see any bumpmapping, too. The model still looks like without shader. The model in med has a normal map as skin2 created with the normalmap generator v1.3 which can be found in the downloadpage from this website.
Please tell me what can I do?

Code:
MATERIAL* skin_firewheel=
{
	diffuse_red = 255;
	diffuse_green = 255;
	diffuse_blue = 255;
	
	ambient_red = 255;
	ambient_green = 255;
	ambient_blue = 255;
	
	specular_red = 200;
	specular_green = 200;
	specular_blue = 200;
	
	emissive_red = 0;
	emissive_green = 0;
	emissive_blue = 0;
	
	power = 5;
	
	effect = "bump.fx";
}

action firewheel() {
	...
	my.material = skin_firewheel;
	...
}

function main () {
	...
	vec_set(sun_color, vector(160,160,160));
	sun_angle.pan = 60;
	sun_angle.tilt = 90;
	sun_light = 100;
	...
}


Thanks for reading, thinking, answering wink