Weird Bumpmap Bug

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billybob884
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Weird Bumpmap Bug

Post #1by billybob884 » 16.04.2003, 21:11

well, i'm getting a few bugs:
1) Mars and Pluto look really weird, all blocky, but the Bumpmaps look fine.
http://mikecelestia.web1000.com/bumps.htm
2) I didnt really want to make a seperate topic for this, but I can't get to Earth without celestia crashing. It locks up before earth is even slightly visible, even when it is set to a low res. dds texture (2.6MB)
Mike M.

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Post #2by chris » 16.04.2003, 21:14

Which version of Celestia, which graphics card, etc?

--Chris

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Post #3by billybob884 » 16.04.2003, 21:32

Latest version of celestia with the new .exe, not sure what my graphics card is but I have a GForce2 (if that helps), 382MB ram (odd #, isnt it?), Win Me, anything i'm forgetting?
Mike M.



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t00fri
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Re: Weird Bumpmap Bug

Post #4by t00fri » 16.04.2003, 21:33

billybob884 wrote:well, i'm getting a few bugs:
1) Mars and Pluto look really weird, all blocky, but the Bumpmaps look fine.

http://mikecelestia.web1000.com/bumps.htm

I definitely dislike servers that /modify/ the size of the windows on /my machine/ without being allowed to do so!!!

Bye Fridger

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Post #5by billybob884 » 16.04.2003, 21:35

I'm sorry, what?
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Post #6by t00fri » 16.04.2003, 21:53

billybob884 wrote:I'm sorry, what?


When I go to this unfortunate web.1000.com URL you quoted, the /size of my browser window/ is modified by them. I have not allowed anybody to change anything on my machine!

Bye Fridger

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Post #7by selden » 16.04.2003, 22:00

Fridger,

The web page that Mike referenced only contains <img> directives:

Code: Select all

<html>
<head>
<title>BumpMaps</title>
</head>
<body>
<img src="http://mikecelestia.web1000.com/weirdmarsbumpbug.jpg">
<img src="http://mikecelestia.web1000.com/weirdplutobumpbug.jpg">
</body>
</html>


Any change in the size of your browser window is being done by your browser. My guess is that it is because the jpegs are larger than the window you're using so that your browser is being "helpful" and expanding to display them full size. I hope this is a setting in the preferences menu for your browser.

What browser are you using?
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Post #8by selden » 16.04.2003, 22:11

Mike,

You can get the model number of your graphics card from Celestia's Help menu along with the version of OpenGL.

Also, you need to be precise about the version of Celestia. Saying "latest version" is ambiguous. What you think is the latest version might not be.

I think Chris may be about to make an announcement in that regard....
Selden

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Post #9by billybob884 » 16.04.2003, 23:11

celestia 1.3.0 prerelease 6 with the recent .exe file that was put up a few days ago, i'll get back to you with the graphics card stuff in a little while
Mike M.



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Post #10by t00fri » 16.04.2003, 23:43

selden wrote:Fridger,

The web page that Mike referenced only contains <img> directives:

Code: Select all

<html>
<head>
<title>BumpMaps</title>
</head>
<body>
<img src="http://mikecelestia.web1000.com/weirdmarsbumpbug.jpg">
<img src="http://mikecelestia.web1000.com/weirdplutobumpbug.jpg">
</body>
</html>


Any change in the size of your browser window is being done by your browser. My guess is that it is because the jpegs are larger than the window you're using so that your browser is being "helpful" and expanding to display them full size. I hope this is a setting in the preferences menu for your browser.

What browser are you using?


Of course, I have also looked at the sources before complaining here:

<!-- saved from url=(0022)http://internet.e-mail -->
<html>
<head>
<script>
resizeTo(screen.width-400,height=(screen.height*0.9));
moveTo(0,0);


can you see the window resize command in the script? Also, I do not see Mike's JPEG's, but some sort of a search page from the web1000 server. This happens both with Netscape 4.8 and KDE-Konqueror under Linux and with IE6 on my Laptop under XP. The content of that page would easily fit onto the size of my browser window given my high 1600x1200 resolution under Linux and 1400x1050 under XP on the Laptop!

In any case, server side modification of windows of host machines is considerered /very/ bad (programming) style, because it inflicts on the users 'privacy'.

Bye Fridger

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Post #11by selden » 17.04.2003, 00:21

Fridger,

That is truly strange.
I can only believe that the Web server is detecting the browser type and doing something different with different browsers. Of course, that kind of behavior is unacceptable. Or a bug. I don't see the effect you report when I use IE6.

It used to be that some browsers would let you set the name of the browser ID string to be anything you wanted. Is that function available in Konqueror?
Selden

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Post #12by t00fri » 17.04.2003, 00:30

selden wrote:Fridger,

That is truly strange.
I can only believe that the Web server is detecting the browser type and doing something different with different browsers. Of course, that kind of behavior is unacceptable. Or a bug. I don't see the effect you report when I use IE6.

It used to be that some browsers would let you set the name of the browser ID string to be anything you wanted. Is that function available in Konqueror?


As you can see, I took 2 different machines and different OS's to check the behaviour. It's identical in all cases. Could it be that your resolution is smaller than mine!?

Did you notice: I also confirmed this behaviour with IE6 under XP on my Laptop running with 1400x1050 resolution.

It probably only triggers for high resolutions....

This resizing 'feature' should be well known to most of us;-): many SPAM porn shows that one gets into the email use this intolerable resizing technique to make us see their 'actors' in "Cinemascope"....

Bye Fridger

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Post #13by chris » 17.04.2003, 00:35

t00fri wrote:This resizing 'feature' should be well known to most of us;-): many SPAM porn shows that one gets into the email use this intolerable resizing technique to make us see their 'actors' in "Cinemascope"....

Really? I guess it's time for me to quite using pine for reading email. I'm missing out :)

--Chris

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Post #14by t00fri » 17.04.2003, 00:40

chris wrote:
t00fri wrote:This resizing 'feature' should be well known to most of us;-): many SPAM porn shows that one gets into the email use this intolerable resizing technique to make us see their 'actors' in "Cinemascope"....
Really? I guess it's time for me to quite using pine for reading email. I'm missing out :)

--Chris


They only do this on us 'free thinking' Europeans;-)

I still remember one of my american colleagues visiting in summer a popular recreation park in Hamburg. He was slightly schocked by the large amount of naked sun addicts lieing around on the grass;-)

Bye Fridger

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Post #15by billybob884 » 17.04.2003, 00:45

well, unfortunately yes, here in america people are so strict about clothing and nudity. it really is sad
Mike M.



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Post #16by selden » 17.04.2003, 00:55

Fridger,

My screen is set to 1600x1200, so that's fairly high resolution. IE normally runs in a small part of that and is not showing all of Mike's pictures at once, although it probably could. The window size doesn't change when accessing Mike's page. Obviously you're getting preferential treatment!

I use a plain text mail reader (PMDF MAIL under VMS) with all html capability disabled, so I don't see movies in my mail :)
(one of the nasty featues of most html spam ads is that when the message accesses their web site it provides them with a verification that your e'mail address is valid, adding it to even more mailing lists. Like many viruses, the picture they're showing you is to distract you from what's going on in the background.)

I can only suggest, as you've already decided, not to access Mike's current pages. *sigh*
Selden

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Post #17by billybob884 » 17.04.2003, 01:01

its all the work of web1000, they have been causing so many problems, for t00fri i think i have an idea of whats going on, i've seen hte same prob. before, someone else outsite hte US tried to access it and couldn't. weird, isnt it? i know i havent put any screen lock code in my pages.
Mike M.



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Post #18by t00fri » 17.04.2003, 01:06

billybob884 wrote:its all the work of web1000, they have been causing so many problems, for t00fri i think i have an idea of whats going on, i've seen hte same prob. before, someone else outsite hte US tried to access it and couldn't. weird, isnt it? i know i havent put any screen lock code in my pages.


Mike:

That could well be the reason. As I said they only do it to people from "old Europe";-)

Hey, would you have guessed that your harmless little bug report was going to develop into a 2 page 'marathon' thread?

Bye Fridger

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Post #19by selden » 17.04.2003, 01:36

This is to confirm that the bug reported by Mike is present in v1.3.0 final.

bumpmap shadows are reversed when using the Render path "NVIDIA Combiners": Olympus Mons looks like a hole in the ground and Valles Marineris looks like a mountain range. However, the "OpenGL vertex programs" and "OpenGL/combiners" rendering paths are fine.

This is seen on the following system configuration:
256MB 500MHz Pentium 3, Windows XP Pro, SP1
128MB Nvidia GeForce4 Ti4200, Detonator 43.45, OpenGL v1.4.0.
Celestia v1.3.0 final with no additions.
Selden

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Post #20by billybob884 » 22.04.2003, 21:06

Ok.... not too sure what you said selden, but I figured out a way to fix it. I just press Ctrl + V a few times and it is better (actually, I think that may be what you were saying, selden, except in a more complicated way :wink: ).
Mike M.



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