   Glow And Bloom (Gloom Blow??!?!)
  So, last week I modified my verlet physics demo, adding effect (bloom) and when I posted it in my campus forum, this Guy told me that it's glow, not bloom. So I need somebody to tell me the difference between bloom and glow, anyway, here it is the two screenshot of my tweaked demo. The first didn't do luminance extraction(only scale and bias) hence looks like it's burning n hot. the second did, however, so it looks more sharp, but anyway, do they look like bloom effect??!! please, I cant wait to know that, and the web didn't help.Here's the link to the two Imagesthe hot desertthe mild version with luminance extraction
Quote:Original post by Triad_praguewhen I posted it in my campus forum, this Guy told me that it's glow, not bloom.This guy is an idiot."Bloom" is a technique for implementing a "glow" effect... but hey, at least he didn't call it HDR...   ;  Well, who is this guy you refer to??(not me, right).unh, by the way, thx anyway.so it's a bloom effect right??hah now I have the guts to face that guy, I'll give my argument and see how he'd respond.thx hodge.But it's a bloom effect right???   ;  Yeah I was referring to the person you call "this Guy" ;)It looks like a bloom effect - to be clear though, a bloom effect is when you take some lower resolution and/or blurred data and blend it somehow over the framebuffer to make bright pixels blur into neighbouring areas. It looks like that's what you're doing..."Glow" is a general term, "bloom" is a specific kind of "glow".   ;  AhHa, hodgeman, you're so damn clever!.thx for the explanation, anyway, I'm using glCopyTexSubImage for render to texture.in my PC, FBO is slower than glCopyTexSub*but in some PC(in my campus), render to texture is slow.with geforce 7050, it gives me 10fps, in another PC(with same specs I guess, geforce 7050 too)it doesn't eat my FPS even a bit.so what's wrong??could it be a driver problem.In my PC (GeForce 7300GT)it doesn't kill my FPS at all.what's wrong??sorry for my bad english, anyway   