Re: Getting shader parameter type

["Daniel Rind" <daniel.rind(at)chello.at>]

Yup that did it, thanks a lot. Quite a lot of shader parameter types I've never encountered in there o_O

 

Anyway, rendertree translation is working - now I just have to code Gelato replacement shaders for all XSI shaders. Oh joy.

 

Having Gelato render in one window and mental ray in the other is really cool =)

 

Ciao, Daniel!

----- Original Message -----

From: Halfdan Ingvarsson

To: XSI(at)Softimage.COM

Sent: Tuesday, January 23, 2007 11:15 PM

Subject: RE: Getting shader parameter type

Check out siShaderParameterType Shader::GetShaderInputType instead.

 

 - ½

 

---

From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Daniel Rind
Sent: 23-Jan-07 16:56
To: XSI(at)Softimage.COM
Subject: Getting shader parameter type

 

Hi!

 

I'm currently writing code to walk XSI shader graphs, and I'm having a little problem with shader parameter types:

 

What is the correct way to retrieve the parameter type of a shader's input parameters?

 

I'm currently trying it with something like:

 

Shader current_shader(...);

 

CParameterRefArray shader_params = current_shader.GetParameters();

 

for (int i = 0; i < shader_params.GetCount(); i++)

{

  Parameter current_parameter(shader_params[i]);

 

  switch (current_parameter.GetValueType())

  {

  case siFloat:

    ...

  case siString:

    ...

  }

}

 

which works only sort of...

 

Color and Vector shader parameters are always siEmpty (so I go probing if the parameter contains further parameters, and then check those), but if I connect another shader to a parameter, the GetValueType always returns siRef (who had the idea to assign 666 to that :P), and I can't find out if it's a float or a color or whatever.

 

I'm sure there is some simple GetParameterType() function that I'm missing, that returns if it's a color, a vector, an int, etc... no matter if anything is connected to it or not... or at least I hope there is?

 

Ciao, Daniel!