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MCX Problem with transparent textures.

S

SceneryFreak

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20
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austria
Hi, for some reason all transparent textures become opaque when exported from MCX to xplane .obj. The strange thing is when i open the texture in photoshop it is transparent but in the sim its opaque. In MCX it is rendered correctly with transparent textures as well. I have succesfully exported objects withtransparent parts (fences, windows, etc.) with blender and sketchup in the past, with modelconverterx it never worked for some reason i tried it quiet a few times already. The textures always become opaque. Why is thhat? Am I missing some setting in mcx?

Thanks!
 
It might be MCX is missing some attribute to render the transparency. I would have to check the obj format specification for that, as I'm not an X-Plane user myself.
 
arno said:
It might be MCX is missing some attribute to render the transparency. I would have to check the obj format specification for that, as I'm not an X-Plane user myself.
Click to expand...
Hi arno, a took a closer look at the resulting xplane .obj file and it seems the "ATTR_no_blend" attribute caused it, it was set to "ATTR_no_blend 0,501960784313725", i deleted that line and the window texture finally looks just as i expected it to look like now.

Is there any way in mcx to set the default values for those attributes? because i get stuff like "ATTR_no_blend 0,501960784313725" or "ATTR_shiny_rat 0,250980392156863" by default and I'm not sure where these values come from.
 
These values will come from the material settings, the no blend comes from the alpha threshold I suspect and the shiny_rat from the specular color or specular power. I'll double check.
 
Hi,

I checkedm the ATTR_shiny_rat is based on the specular power of the material.

ATTR_no_blend was written based on alpha testing and the threshold. But that was not correct. I have now modified it to only write that when the alpha mode is mask instead of blend. That will be part of the next development release.
 
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