"sorry, lcd's are still too slow to refresh. there is a visible lagtime (in milliseconds) when dragging windows and scrolling, especially when there is a big contrast difference between the surface that was visible and the one that replaced it (after-ghosts). i dunno about you guys, but i find it rather annoying. i'll be sticking to my 100hz crt for now."
My laptop uses Dell's Ultrasharp(TM) technology in it's display. The manual says that the 'falloff' rate is 16ms. I'm not sure how that translates when compared to other LCD's, but I can tell you that I have not noticed ghosting on this display at all, and yes I have played games and watched DVDs on it. I do artwork (both 2D and 3D) on my laptop, and I must say it's painful to go back to CRT.
I'd say the technology's there, but I wouldn't be surprised if it's at a premium.
"Just to clarify, there is a seperate floating-point intensity for each color (rgb). The above description implies there is a seperate color and intensity."
Yeah, you're right. I should have written that more carefully.
Is Digital Domain using floating point image formats for anything besides Global Illumination? I started experimenting with using.HDR files for textures in Lightwave, and was surprised at the results. I was just curious if D2 was doing something similar? (Note: I'm not limiting it to Lightwave, that's just the tool I have in front of me right now.)
"Rosen said. ``But I have young children and I want to devote more of my time to them.''"
She's taking her kids to court. Evidentally, some bits of their DNA were copied from her own. She considers this theft so she's suing them for 1.4 billion dollars in damages. She was quoted as saying
"All the blood they're generating is based on my own. Trillions of cells using pirated DNA are created every single month! They can't be allowed to do this. I mean, who's going to pay parents to be concieved if all it takes is a couple ordinary body parts?"
"We submitted an OpenEXR plugin to the Film Gimp [sf.net] team, and I understand it'll show up in the next release.
Also, Idruna Software [idruna.com] is working on OpenEXR support for their Photogenics package. It already supports creation of and painting on HDR formats."
Interesting. I'm glad you mentioned Idruna Software because I was under the impression Gimp was the only paint prog on the block for Linux.
Just curious if there was a Photoshop plugin or Gimp feature or something where one could paint using the 16-bit format?
I'd like to paint textures this way, it's a lot more natural than today's 24-bit formats. Kinda sad, really. Since HDRI (high dynamic range imagery) came along, 24-bit seems so limited! So I'm hoping that something like Photoshop comes along soon and supports it.
Today what you have to do is make a sequence of images (3 or 4) that represent the image at different intensities so that a program can analyze them and develop a luminance curve. Which is fine, but it's a bit tricky to paint a texture that way. (works fine with photographs, though...)
Just curious about what kinds of tools are out there. I'm only recently developing an interest in this format.
"720 horizontal pixels * 480 vertical pixels * 32 bits per pixel * 29.97 frames per second = 331MBytes/second."
Where do you get 32 bits from? Heh. Best I've ever seen is 24, but you could easily drop that to 16 and nobody'd ever know better.
Other than that, you're right. Personally, though, I'm not a fan of MPEG2. Besides finding a player for it, it's not as efficient as say MPEG 4. I'd prefer to have the CPU do the compression in real time. One of these days I want to put together a dual-processor PVR just to do that. (The other processor is for viewing the footage on my TV without interrupting capture...)
Well, I gotta admit, I'm baffled as to why one would want to record 16 channels at the same time. Why is that interesting to you? What's your goal here? Are you providing a service for somebody? Is this something you'd just like to do at home? Answer that for me and I might be of more assistance.
Personally, I can't help but think that 4 cards capturing at ideal quality would saturate the PCI bus unless each card directly controlled a hard drive.
"Out of curiosity, has anybody used HDRI images for textures? I'm curious if the floating point data makes a difference. I could see it being particularly useful for the diffuse and lumination channels. What about color?"
Okay, somebody modded me down as 'Off-Topic'. I'm just going to assume he/she/but probably he didn't understand what I was talking about here.
OpenEXR is a format for High Dynamic Range Imagery. What this essentially means is that instead of describing a pixel by having 3 channels @ 8-bits per channel (which has a maximum value of 255), you get a floating point 16-bit value per channel which is a measure of intensity. The result? Instead of having just color data there, you have color data & intensity data. The sky's blue, right? If you take a 24-bit picture of the sky, you get blue pixels. Is that enough data? No. Try looking up at the sky without squinting your eyes. Can't do it, can ya? The sky is *very* bright. With the HDRI format, you can store that luminosity as well as the color. That's why they use it for global illumination. You're capturing light sources, intensities, and color at the same time.
Thing is though, a floating point format has uses in other areas of 3D such as texture mapping. It means you can create/capture textures that deal in intensity as well (just like real life), thus you get a much more realistic response from lights in the scene.
I have no idea if I'm making any sense here or not, but the main point I'm trying to make here is that I am nowhere near off-topic. That's the reaason this format is interesting. It's not another.PNG or.JPG format, it's a more accurate way of storing information about light, and us people that work in 3D have a lot to be excited about. Since it's just recently become involved in the major 3D Apps out there, the capabilities of it are still in their infancy and I'm curious what people have discovered about it.
"Interesting is that the Winlots seem to understand that on the hardware level, but have fallen to the delusion that software ought to be only from one single vendor."
Everybody that generalizes sucks. Heh.
"Why whine about Apache/Windows, then when IIS is so great anyway?"
I didn't whine about Apache. Never did. I have no idea why you think I was. I was only commenting on the fruitless generalization that earned karma.
"And why was IIS so great again?"
Again? When did I say it was great the first time?
Heh. Part of me wonders if I'm recieving messages you intended for somebody else.
"I'm sure somebody will port it to Windows in time. The libraries themselves are pretty vanilla code, so it should be easy to port. We don't really use Windows for effects work here so it hasn't been a priority for us."
May I ask where you're at? I'm sorry, I don't mean to pry. I'm just curious because I want to work at an FX studio in the next year or so. Any tidbit of info I can get about how things work in a place like that are extremely valuable to me.
Question: Do you use a tool there like Photoshop (Gimp maybe?) that works in that format? I'm very interested in 'painting' HDRI textures.
Out of curiosity, has anybody used HDRI images for textures? I'm curious if the floating point data makes a difference. I could see it being particularly useful for the diffuse and lumination channels. What about color?
"Your statement is so dumb and stupid, I don't know where to begin debunking it. "
You shouldn't have tried debunking it. You missed my point by nearly 100%. Go read the post I was responding to, then read mine again. Maybe it'll become clearer. Somebody else got it, so I know it's not too obscure.
" Seriously, why should anybody want to use Windows as a webserver? The only reason I can think of is when you are locked into MS-only technology like ASP which rules out Apache anyway. So why? Just because the computer came with Windows? Because Bill Gates tells you?"
I'd give you reasons, but that'd just invite argument. Instead I'd suggest that if you're asking a question like that, it's because you've been reading Slashdot too long, as opposed to speaking from experience.
I speak from experience, and I can tell you IIS is not the nightmare people make it out to be. If it were I wouldn't have time to tinker around on Slashdot.
"If by "broke" you mean "exploded". Just because your player breaks down doesn't mean you don't have the media anymore..."
I don't think you understand the point I was making. It wasn't about losing the media, it was about having to buy a new 100-disc changer *and* having to reload it. Why bother? Get the MP3 versions and make a playlist.
Personally, I think that's where the vast majority of the file trading comes in. Nothing wrong with that. It's certainly not 'stealing'.
"Boycotting will work if everyone walks away from the RIAA labels and supports the indies instead..."
We have a few thousand people here on Slashdot. Everyone that you describe can be measured in the 10's (possibly 100's) of millions. Can you honestly tell me that Slashdot's going to have enough boycotters to make a difference? I'm not convinced. Get 10,000 people to return a CD in one day, though, and there'll be a noticable spike.
*Tap tap* Is this thing on? Heh. I've said this like 3 times now and I don't think I'm getting through to anybody. Not enough people know about it.
"Ten zillion sporks. That was funny as hell. I got caught in the loops too, with the sigs that teleported back to the middle of the thread which was already 50 answers deep. Clever trolls rock the kasbah."
lol!! No. Missed that! Shit, Slashdot needs a hall of fame. I also wanna know how many funny points I've earned.
"I can't see myself putting TMDA-type barriers on my personal account"
I can, but the main reason is that I already have the contact info and can put the people in it without them having to lift a finger. But that's just a difference. Heh. I think we understand each other clearer now.
Heh. I wanted to register a bunch of Dilbert names so I could have each of the characters respond based on their own.. uh.. defectiveness. Problem is I could dedicate my day hours to that.
"not sure if this is funny or insightful, damn limitations of slashdot moderation!:D"
Ha!
Now that I think about it, I don't know what I'd think if I ran across that. I can tell you, though, that I was gritting my teeth when I wrote that. I'm sick of people making stupid generalizations like that based on some MSPhobia. (damn I wish I could make that rhyme with HomoPhobia.)
Slashdot Mirror
"sorry, lcd's are still too slow to refresh. there is a visible lagtime (in milliseconds) when dragging windows and scrolling, especially when there is a big contrast difference between the surface that was visible and the one that replaced it (after-ghosts). i dunno about you guys, but i find it rather annoying. i'll be sticking to my 100hz crt for now."
My laptop uses Dell's Ultrasharp(TM) technology in it's display. The manual says that the 'falloff' rate is 16ms. I'm not sure how that translates when compared to other LCD's, but I can tell you that I have not noticed ghosting on this display at all, and yes I have played games and watched DVDs on it. I do artwork (both 2D and 3D) on my laptop, and I must say it's painful to go back to CRT.
I'd say the technology's there, but I wouldn't be surprised if it's at a premium.
"Just to clarify, there is a seperate floating-point intensity for each color (rgb). The above description implies there is a seperate color and intensity."
.HDR files for textures in Lightwave, and was surprised at the results. I was just curious if D2 was doing something similar? (Note: I'm not limiting it to Lightwave, that's just the tool I have in front of me right now.)
Yeah, you're right. I should have written that more carefully.
Is Digital Domain using floating point image formats for anything besides Global Illumination? I started experimenting with using
"Rosen said. ``But I have young children and I want to devote more of my time to them.''"
She's taking her kids to court. Evidentally, some bits of their DNA were copied from her own. She considers this theft so she's suing them for 1.4 billion dollars in damages. She was quoted as saying
"All the blood they're generating is based on my own. Trillions of cells using pirated DNA are created every single month! They can't be allowed to do this. I mean, who's going to pay parents to be concieved if all it takes is a couple ordinary body parts?"
"We submitted an OpenEXR plugin to the Film Gimp [sf.net] team, and I understand it'll show up in the next release.
Also, Idruna Software [idruna.com] is working on OpenEXR support for their Photogenics package. It already supports creation of and painting on HDR formats."
Interesting. I'm glad you mentioned Idruna Software because I was under the impression Gimp was the only paint prog on the block for Linux.
Just curious if there was a Photoshop plugin or Gimp feature or something where one could paint using the 16-bit format?
I'd like to paint textures this way, it's a lot more natural than today's 24-bit formats. Kinda sad, really. Since HDRI (high dynamic range imagery) came along, 24-bit seems so limited! So I'm hoping that something like Photoshop comes along soon and supports it.
Today what you have to do is make a sequence of images (3 or 4) that represent the image at different intensities so that a program can analyze them and develop a luminance curve. Which is fine, but it's a bit tricky to paint a texture that way. (works fine with photographs, though...)
Just curious about what kinds of tools are out there. I'm only recently developing an interest in this format.
"720 horizontal pixels * 480 vertical pixels * 32 bits per pixel * 29.97 frames per second = 331MBytes/second."
Where do you get 32 bits from? Heh. Best I've ever seen is 24, but you could easily drop that to 16 and nobody'd ever know better.
Other than that, you're right. Personally, though, I'm not a fan of MPEG2. Besides finding a player for it, it's not as efficient as say MPEG 4. I'd prefer to have the CPU do the compression in real time. One of these days I want to put together a dual-processor PVR just to do that. (The other processor is for viewing the footage on my TV without interrupting capture...)
"Obviously, the poster's intent was to record more porn...."
Oh shit, I didn't realize that.
Okay okay okay okay.. lemme think.
Okay, I can help him, but I'll need sample videos from him to perform anal...ysis on. (sorry about the pause there, was distracted for a moment.)
Well, I gotta admit, I'm baffled as to why one would want to record 16 channels at the same time. Why is that interesting to you? What's your goal here? Are you providing a service for somebody? Is this something you'd just like to do at home? Answer that for me and I might be of more assistance.
Personally, I can't help but think that 4 cards capturing at ideal quality would saturate the PCI bus unless each card directly controlled a hard drive.
"Out of curiosity, has anybody used HDRI images for textures? I'm curious if the floating point data makes a difference. I could see it being particularly useful for the diffuse and lumination channels. What about color?"
.PNG or .JPG format, it's a more accurate way of storing information about light, and us people that work in 3D have a lot to be excited about. Since it's just recently become involved in the major 3D Apps out there, the capabilities of it are still in their infancy and I'm curious what people have discovered about it.
Okay, somebody modded me down as 'Off-Topic'. I'm just going to assume he/she/but probably he didn't understand what I was talking about here.
OpenEXR is a format for High Dynamic Range Imagery. What this essentially means is that instead of describing a pixel by having 3 channels @ 8-bits per channel (which has a maximum value of 255), you get a floating point 16-bit value per channel which is a measure of intensity. The result? Instead of having just color data there, you have color data & intensity data. The sky's blue, right? If you take a 24-bit picture of the sky, you get blue pixels. Is that enough data? No. Try looking up at the sky without squinting your eyes. Can't do it, can ya? The sky is *very* bright. With the HDRI format, you can store that luminosity as well as the color. That's why they use it for global illumination. You're capturing light sources, intensities, and color at the same time.
Thing is though, a floating point format has uses in other areas of 3D such as texture mapping. It means you can create/capture textures that deal in intensity as well (just like real life), thus you get a much more realistic response from lights in the scene.
I have no idea if I'm making any sense here or not, but the main point I'm trying to make here is that I am nowhere near off-topic. That's the reaason this format is interesting. It's not another
"Interesting is that the Winlots seem to understand that on the hardware level, but have fallen to the delusion that software ought to be only from one single vendor."
Everybody that generalizes sucks. Heh.
"Why whine about Apache/Windows, then when IIS is so great anyway?"
I didn't whine about Apache. Never did. I have no idea why you think I was. I was only commenting on the fruitless generalization that earned karma.
"And why was IIS so great again?"
Again? When did I say it was great the first time?
Heh. Part of me wonders if I'm recieving messages you intended for somebody else.
"I'm sure somebody will port it to Windows in time. The libraries themselves are pretty vanilla code, so it should be easy to port. We don't really use Windows for effects work here so it hasn't been a priority for us."
May I ask where you're at? I'm sorry, I don't mean to pry. I'm just curious because I want to work at an FX studio in the next year or so. Any tidbit of info I can get about how things work in a place like that are extremely valuable to me.
Question: Do you use a tool there like Photoshop (Gimp maybe?) that works in that format? I'm very interested in 'painting' HDRI textures.
"Well, the Jaguar *was* a 64-bit console..."
Saying that the Jaguar was 64-bit is kind of like saying RC cars can go over 300 scale miles per hour.
That's a bummer. Lightwave loves HDRI imagery.
Out of curiosity, has anybody used HDRI images for textures? I'm curious if the floating point data makes a difference. I could see it being particularly useful for the diffuse and lumination channels. What about color?
"Your statement is so dumb and stupid, I don't know where to begin debunking it. "
You shouldn't have tried debunking it. You missed my point by nearly 100%. Go read the post I was responding to, then read mine again. Maybe it'll become clearer. Somebody else got it, so I know it's not too obscure.
" Seriously, why should anybody want to use Windows as a webserver? The only reason I can think of is when you are locked into MS-only technology like ASP which rules out Apache anyway. So why? Just because the computer came with Windows? Because Bill Gates tells you?"
I'd give you reasons, but that'd just invite argument. Instead I'd suggest that if you're asking a question like that, it's because you've been reading Slashdot too long, as opposed to speaking from experience.
I speak from experience, and I can tell you IIS is not the nightmare people make it out to be. If it were I wouldn't have time to tinker around on Slashdot.
"If by "broke" you mean "exploded". Just because your player breaks down doesn't mean you don't have the media anymore..."
I don't think you understand the point I was making. It wasn't about losing the media, it was about having to buy a new 100-disc changer *and* having to reload it. Why bother? Get the MP3 versions and make a playlist.
Personally, I think that's where the vast majority of the file trading comes in. Nothing wrong with that. It's certainly not 'stealing'.
You know Bud's going to end up with that Dodge.
Or is that reuse?
So.. it's silicon based then? Well, that means they can colonize radioactive worlds, but their population growth is half.
"Boycotting will work if everyone walks away from the RIAA labels and supports the indies instead..."
We have a few thousand people here on Slashdot. Everyone that you describe can be measured in the 10's (possibly 100's) of millions. Can you honestly tell me that Slashdot's going to have enough boycotters to make a difference? I'm not convinced. Get 10,000 people to return a CD in one day, though, and there'll be a noticable spike.
*Tap tap* Is this thing on? Heh. I've said this like 3 times now and I don't think I'm getting through to anybody. Not enough people know about it.
Heh. I'll chekc out sporks r us.
Cheers man.
"Ten zillion sporks. That was funny as hell. I got caught in the loops too, with the sigs that teleported back to the middle of the thread which was already 50 answers deep. Clever trolls rock the kasbah."
lol!! No. Missed that! Shit, Slashdot needs a hall of fame. I also wanna know how many funny points I've earned.
"I can't see myself putting TMDA-type barriers on my personal account"
I can, but the main reason is that I already have the contact info and can put the people in it without them having to lift a finger. But that's just a difference. Heh. I think we understand each other clearer now.
Cheers, man.
Heh. I wanted to register a bunch of Dilbert names so I could have each of the characters respond based on their own.. uh.. defectiveness. Problem is I could dedicate my day hours to that.
"Anonvmous, do you weigh the same as a duck? ;)"
Duck? No no. I'm a little pudgey in the middle. I've been told I'm more like a d..umbf...uck.
"not sure if this is funny or insightful, damn limitations of slashdot moderation! :D"
Ha!
Now that I think about it, I don't know what I'd think if I ran across that. I can tell you, though, that I was gritting my teeth when I wrote that. I'm sick of people making stupid generalizations like that based on some MSPhobia. (damn I wish I could make that rhyme with HomoPhobia.)
" In the mean time it's cool to look up his foes and see what they're contributing, because it's usually pretty cool."
/. is fun. Know of anybody else like that?
Ha! Hehe I think I see what you mean. Experimenting on