so Ive been trying to structure the final BSP for guardian forest, but tool keeps giving me this error, I know that there are no geometry errors with this map, I also know that the poly count is good, so can anyone explain what this means:

that;s a odd one but as im new to map making I don't no sorry

Some triangle(s) have wrong material ID.

420 blaze it

This might help when lookign for the triangles wich have the wrong material.

This lists all the materials applied to your model.

thanks, I believe I've worked out what went wrong, hopefully...

it could also mean that some objects don't have a material on them if you're exporting them as separate objects.

It could also mean you are exporting with Bluestreak and you don't have the materials within a Multi/Sub-Object container.

it can also mean that you have an area you haven't used the UVW_map option on yet
(like if you use the sewing tool to manually create faces)
Edited by OrangeJuice on Oct 10, 2014 at 01:20 AM

The Problem:
The bsp you're exporting has multiple materials applied to it which aren't part of teh same multimaterial.


The Fix:
Basically to fix this, you throw THE SAME multimaterial on EVERYTHING in the scene. It has to be the same material for everything for reasons I will explain below. This material should be a multimaterial so you can add sub-materials to it.

You can create a multi-material and then throw the materials you are using into each of it's sub-materials, then throw it on the model. You then select which sub-material in the multimaterial the triangles you have selected should use(look at Maiku3's picture to see where this list is). The easiest way to do this is to start out by selecting ALL the triangles in the model and setting them to use the most common sub-material in your model(like dirt or something) and then setting the rest by hand(can take a while).


The Reason Why:
The way Tool knows which material goes to which triangle is by using a list of all the materials that the model uses, with a number(index) to identify each material by. Each triangle is then assigned one of those index's to show which material it uses.

Bluestreak and Blitzkrieg build this list of materials from a multimaterial that's applied to the model you are trying to export. If there are multiple materials applied to one model then it doesn't know how to handle this. That's why you have to use a multimaterial, because it lets you apply multiple materials to the same model.
Edited by MosesofEgypt on Oct 10, 2014 at 04:55 PM

A scene is not restricted to a single Multi/Sub-Object material container. You can have as many as needed, but each model in the scene can only have one Multi/Sub-Object applied to it.

I don't want to confuse him by throwing more details in there than is necessary to understand what needs to be done for his level. You're right, but it's best to do it the way i described for levels just to make sure you don't end up with the exact issue he's encountering.