about lighting

[hutty]

a couple things
1 -- I discovered rlights a few days ago ... and I am very fond of chronas ... is there any way to either add a chrona without a rlight ... or make an rlight with no light but big chrona?

2 -- Can I shine a regular light through a colored glass texture and get a colored shadow?

edit ...

3 -- not really lighting based but ... if I'm making a plant with a lot of leaves ... is it better to make polygon leaves? or transparent image leaves

[torus]

Best way to find out the answers is to try it. But I believe you can cast colored shadows through colored glass using RTlights... there was a map in a church setting that demonstrated this. Correct me if I'm wrong.

[TH3FTB0T]

Maybe a shader sprite?

[Maddin]

1. Don´t know. You could make a rlight with a really small light value and add a corona to it. Try it out!

2. Yes. I don´t exactly know how this works but it is possible. Search for "coloured alpha shadowing" or something like that.


3. Definitely transparent image leaves! Saves a lot of triangles and hasn´t such a huge impact on performance.

[Mr. Bougo]

Fun!

[Leeloo]

Wow, I am so ignorant about mapping!

[tZork]

#2 is done with http://q3map2.everyonelookbusy.net/shade...lphashadow iirc
tough lightmaps being rather low res usually, you may get better results from faking it with a blendfunc add decal.

[hutty]

ok ... thanks ...

about leaves ... assuming I have the same number of leaves regardless of which method I use .... wouldn't having many transparent leaves slow down the system more? (like staring through several layers of glass)

[Mr. Bougo]

(04-22-2012 04:39 PM)tZork Wrote:  #2 is done with http://q3map2.everyonelookbusy.net/shade...lphashadow iirc
tough lightmaps being rather low res usually, you may get better results from faking it with a blendfunc add decal.

Aah, okay. I thought he was still talking about rtlights in 2.

[Maddin]

(04-22-2012 07:49 PM)hutty Wrote:  about leaves ... assuming I have the same number of leaves regardless of which method I use .... wouldn't having many transparent leaves slow down the system more? (like staring through several layers of glass)

No, as far as I can remember transparent areas in a texture don´t have any significant affect on the performance whereas a different number of polygons have.