i am starting with the programming of shaders and i do not really improve.
when i am trying a simple thing like this:
Code:

---

material firstshader
{
effect = "
ps 1.3
def c0, 1.0f, 0.0f, 1.0f, 0.0f
";
}
action tree
{
my.material = firstshader;  
}

---

the engine crushes down and a window appears saying something about a syntax error in the effect.

whats the problem?

The effect string expects a DirectX effect. See the DirectX manual for a list of all supported keywords and the correct syntax, or look at effects posted here.

The basic struct is:

Code:

---

// common effect string syntax

technique tech_name {

  pass pass_name {

    //... insert render stages here

  }

}

---