Realistic Reflections

Look at multitextuing, there are many methods of combinig such as blend, decal and combine.

Hi

have a look at:

http://www.gamedev.net/community/forums/topic.asp?topic_id=165453

Hope it helps


BTW: Thx RipTorn


LB

Although I didnt tryed to use 2 texture units on the reflective surface I did tryed to set up an alpha map based on another texture and the effect looks about 50% of what I wanted, Ill also try those Alpha Masking/multitexturing topic.
So far I have a pic like this->
http://www.geocities.com/cippyboy_7/reflections.jpg

Ive been messing around with the blending and Ive at least figured out what I want->
Based on the alpha map I want to show the reflection 100% where the alpha map has a 0 value, between 1-254 a blend of reflection and the reflectve layer texture and at 255, you can see no reflection... I dont know how to express this in an blending equation but at least I know what I want

Edit: Ive been getting into 2 modes... either see-trough->blend one on one or opacity100%->blend one on one. It`s Pretty much fun to animate the alpha color(Alpha Map unchanged).

[edited by - cippyboy on January 18, 2004 4:02:40 PM]

have you realy try it with env combine
i be sure NfSU (see the road) use it in this way

zero alpha = 0% and 255 = 100% reflection

i''m not sure if your technik is posible on water (opacity textures) or todo in a simple way


BTW: use env combine or fragment progamm
and play with the alpah mask
simply convert your texture to grey and use it
for the alpha channel


LB

I uploaded the file again and... its about 80-90% as I wanted it so... Ill leave it this way
the link again->
http://www.geocities.com/cippyboy_7/reflections.jpg

PS:I tryed all the env-combine-s I found... I shouldve initialised something(like an extension ? I thought that it was something like I have the env_combine or not supported so I made no checks... but I have a GeForceFX so I dont tink it was a problem though... I`ll check tomorrow for some fixes though) ? it worked as if I turned on the
gltexenv() to GL_DECAL, which is everything in grey

[edited by - cippyboy on January 18, 2004 5:44:19 PM]

Env combine is an extention that most cards have, you need to set it up.