Roads - Projector Problems

[[Splat]=Scumhawk]

Hey all.

I'm trying to use a projector with a dirt road texture but it doesnt appear correctly, the texture appears transparent and the surrounding area is lit up in a strange way.

Any suggestions on how to achieve a convincing road using projectors?

[spraduke]

copy n paste from arad! Well at least thats what i did.

[Nestor Makhno]

Could you upload the texture you're using (or tell us what it is if it comes with the SDK)?

[[TW]DrGuppy]

Double-click on your projector then look under 'Projector' for settings with Blending in them. Play around with those and you should get the result you want. I would also recommend what spraduke suggested, copy the roads from an official map and compare it against your own. Take note of which settings are different and play around with them to see what they do.

[UncleDrax]

Oo projectors.. so fun.. so frustrating :}

Scum, check the last point on the list below.. it's probably what you got going on..




A UDN list of Projector Topics is here:
http://udn.epicgames.com/Two/ProjectorsTableOfContents


Here's some handy-point for projectors using them as decals and detailing:
- don't 'UNDO' when moving a projector.. sorry to say, but every time it's made my SDK crash.. might just be me however..
- set bLevelStatic=true
- set them to only project of what you need them to project on.. most the time this would probably be terrain (for tree shadows, mud tracks..etc..).. disabling bproject on everything else will keep your projectors optimized and efficient. (ie: > FPS)
- you can check how expensive your projectors are with Stat All.. check the Projectors section.
- Understand aspects of Texture Clamping can be handy
- There are some known projector issues:

Originally Posted by UDN

Projectors do not rebuild well within the editor (in actual game play, the projectors should work normally). There are several known problems that occur with projectors when the level is rebuilt. The following is a small list of some of the known problems. To correct them, simply re-open your level.

* If you try to switch the ProjTexture it won’t overwrite the old texture you had. Instead just add the old texture with your new one.
* After you rebuild geometry, the projections may disappear. If you change the properties of the projector a bit, the projection will be back.
* With each rebuild, projectors with AlphaChannels may become higher in contrast (the dark sections will turn more black, and the light sections will turn more white).