Re: shader writing: Array picking menu question

[Rob Wuijster <rob(at)glassworksamsterdam.nl>]

Ok,

I have some more reading up to do into this shader writing thing I 
guess.... But I'm having a hard time to find some proper examples in the 
SDK and Wiki.

I more or less build the mip_render_subset.spdl file, but I'm still 
unsure about the referencewidget options. Or I'm misunderstanding the 
explanation of this shader in the production pdf....

I've attached the spdl file, maybe someone can have a look and see where 
it has to be finished to work. Thoughts on this are marked behind the #...

cheers,

Rob Wuijster
Glassworks Amsterdam


Rob Wuijster wrote:
> Ah... Thanks for that :-)
>
> vr.gr.,
>
> Rob Wuijster
> Glassworks Amsterdam
>
> Stephen Blair wrote:
> > http://softimage.wiki.avid.com/index.php/SPDL:_ReferenceWidget_for_Materials 
> >
> > -----Original Message-----
> > From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On 
> > Behalf Of Rob Wuijster
> > Sent: Tue 06 November 2007 11:42 AM
> > To: XSI(at)Softimage.COM
> > Subject: Re: shader writing: Array picking menu question
> >
> > Hi,
> >
> > Back at some SPDL writing....
> >
> > I have been browsing the SDK after this reply, but not sure about some 
> > things yet. I found the "type = reference", "UIType" and "mode" 
> > entries, but am still unsure about the "filter = {GUID}" line.
> >
> > I assume this GUID is somehow linked to each objectgroup in XSI, so 
> > the PPG wntry looks at the correct entry in the selectionwindow. I 
> > couldn't find a list linking the XSI object family constant strings. 
> > Or am I looking in the wrong direction, or at the wrong place in the 
> > SDK??
> >
> > Also, how does one "pick" the material for this "mip_render_subset" 
> > shader anyway?
> > (mia entry:
> >          array geometry "objects",
> >          array integer  "instance_label",
> >          material       "material",
> > )
> >
> > I don't assume a regular connection slot in the RT node will do..
> >
> > cheers,
> >
> > Rob Wuijster
> > Glassworks Amsterdam
> >
> >
> > Halfdan Ingvarsson wrote:
> > > In the propertyset section:
> > >  
> > > Parameter "objects" input
> > > {
> > >     guid = "{CD693DF1-2B99-4E20-9807-4C5457EF7D33}";
> > >     type = reference;
> > > }
> > >  
> > > In the Defaults section:
> > >
> > > objects
> > > {
> > >     UIType = "ReferenceWidget.ReferenceWidget.1"
> > >     {
> > >         filter = "{6B579D20-3DC5-11D0-9449-00AA006D3165}";    # 
> > > 3DObjects
> > >         mode   = "multi";
> > >     }
> > > }
> > >  
> > > Check out the sib_lightning.spdl for an example usage of it.
> > >  
> > >  - ½
> >
> > ---
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SPDL
Version = "2.0.0.0";
Reference = "{357B68F0-7423-452C-AED2-7B0A5AF46424}";
PropertySet "mip_render_subset_pset"
{
	Parameter "out" output
	{
		GUID = "{160CE4F5-2390-45F0-9740-75161BC1F5DE}";
		Type = color;
	}
	Parameter "enabled" input
	{
		GUID = "{37C92E3C-8FF1-41F8-92F4-09E156FE18B7}";
		Type = boolean;
		Value = on;
	}
	Parameter "objects" input
	{
		title = "objects";
    		guid = "{CD693DF1-2B99-4E20-9807-4C5457EF7D33}";
    		type = reference;
	}
	Parameter "instance_label" input
	{
		title = "instance_label";
    		guid = "{AEE3E9F6-DC7F-4C9B-BC30-A805764D24C6}";
    		type = reference;
	}
	Parameter "material" input
	{
		title = "material"
		guid = "{B221B97B-F93F-4E09-82D2-91284566FAE8}"; #spdlcheck stops here with a parse error: invalid parameter definition.....
		type = reference;
		UI "hierarchy" = true; #or something alike to be able to select a material from the list instead of just geometry....
	}
	Parameter "mask_only" input
	{
		GUID = "{FD6B4BDB-5EB4-4D94-8B29-A59EF9524E4E}";
		Type = boolean;
		Value = off;
	}
	Parameter "mask_color" input
	{
		GUID = "{FCF4B73F-6D34-438D-806E-D831D6BCBB8D}";
		Type = color;
		Value = 1.0 1.0 1.0 1.0;
	}
	Parameter "background" input
	{
		GUID = "{16185DAC-3A7C-493F-B4FF-2298961A4F8F}";
		Type = color;
		Value = 0.0 0.0 0.0 0.0;
	}
	Parameter "other_objects" input
	{
		GUID = "{99C0A737-DCD0-4200-BCC7-1B15B8FAEAA5}";
		Type = color;
		Value = 0.0 0.0 0.0 0.0;
	}
	Parameter "full_screen_fg" input
	{
		GUID = "{232859A1-166E-4AF8-8912-A883E17D0F30}";
		Type = boolean;
		Value = on;
	}
}

MetaShader "mip_render_subset_meta"
{
	Name = "mip_render_subset";
	Type = lens;
	Renderer "mental ray"
	{
		Name = "mip_render_subset";
		FileName = "production.dll";
		Options
		{
			"version" = 5;
		}
	}
}

Defaults
{
	enabled
	{
		Name = "Enabled";
	}
	objects
	{
		Name = "Objects";
    		UIType = "ReferenceWidget.ReferenceWidget.1"
    		{
        		filter = "{6B579D20-3DC5-11D0-9449-00AA006D3165}";    # Select the 3D Objects to rerender
       		 mode   = "multi";
    		}
	}
	instance_label
	{
		Name = "GBuf.IDs";
    		UIType = "ReferenceWidget.ReferenceWidget.1"
    		{
        		filter = "{new_GUID_here for ID's}";    # Select the instance_label as well to rerender the selected objects
       		 mode   = "single";
    		}
	}
	material
	{
		Name = "Material";
       	UIType = "ReferenceWidget.ReferenceWidget.1"
       	{
         		filter = "{FB607CD0-5207-11d0-854E-00A02417D029}";	# Select the new material to rerender the selected objects with this material assigned
      		 mode   = "single";
       	}
	}
	mask_only
	{
		Name = "Mask_Only";
	}
	mask_color
	{
		Name = "Mask_Color";
		UIType = "rgba";
	}
	background
	{
		Name = "Background";
		UIType = "rgba";
	}
	other_objects
	{
		Name = "Other_Objects";
		UIType = "rgba";
	}
	full_screen_fg
	{
		Name = "Calculate_FG_Full_Screen_(All Objects)";
	}
}

Layout "Default"
{
	enabled;
	objects;
	instance_label;
	material;
	mask_only;
	mask_color;
	background;
	other_Objects;
	full_screen_fg;
}

Plugin = Shader
{
	FileName = "production";
}