Tom,

> -----Original Message-----
> From: Thomas Albrecht [mailto:ra...@web.de]
> Sent: 30 April 2013 23:48
> To: flightgear-devel@lists.sourceforge.net
> Subject: [Flightgear-devel] Lightmap question
> 
> Dear shader experts,
> 
> Can I have a single-channel lightmap, and still use a vec3d in my
model.xml to
> end up with green or red (or whatever) light rendered? As in (roughly)
> 
> on_screen_color[0] = lightmap-grey-value * vec3d[0] * texture[0]
> on_screen_color[1] = lightmap-grey-value * vec3d[1] * texture[1]
> on_screen_color[2] = lightmap-grey-value * vec3d[2] * texture[2]
> 
> where texture is the base model texture?
> 
> Docs/README.model-combined.eff says
> 
> > <lightmap-color type="vec3d" n="0"> 1.0 1.0 1.0 </lightmap-color>
> > - the color of the light for the red channel in the light-map.
> 
> etc for green and blue channels, but when I use this line, FG complains
> 
> Failed to load xml: Unrecognized data type 'vec3d'
> Failed to load model: Unrecognized data type 'vec3d'
> 
> I guess this works only for multi-channel lightmaps? I.e. with
> 
> <lightmap-multi type="int">1</lightmap-multi>
> 
> My .xml looks like this:
> 
> <effect>
>   <inherits-from>Effects/model-combined-deferred</inherits-from>
>   <parameters>
>     <lightmap-enabled type="int">1</lightmap-enabled>
>     <texture n="3">
>       <image>tex/DSCF9503_noroofsec_pow2_LM.png</image>
>       <wrap-s>repeat</wrap-s>
>       <wrap-t>repeat</wrap-t>
>     </texture>
> <!--    <lightmap-color type="vec3d" n="0"> 1.0 5.0 0.2 </lightmap-color>
-->
>     <lightmap-factor type="float" n="0">1.0</lightmap-factor>
>   </parameters>
>   <object-name>b606</object-name>
>   <object-name>b610</object-name>
> </effect>
> 

The lightmap is working correctly - take a look in the b1900d  or the b777.

The error:

Failed to load model: Unrecognized data type 'vec3d'

Indicates that you might be using type="vec3d" somewhere inside an
<animation> tag - it's only valid in an <effect> tag. 

Hth

Vivian 



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