Oolite Bulletins

_ds_ · Posted: Thu Nov 12, 2009 5:54 pm Post subject: Re: Thanks for the work

[quote="foxbow"][…]
# make -f Makefile dpkg
will build the changelog file but bail out due to a missing 'debuild' utility.[/quote
# aptitude install devscripts

And you only need to be root to install the resulting .deb. (For dpkg-buildpackage, running it via fakeroot is enough.)
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Simon B · Posted: Tue Nov 24, 2009 11:11 am Post subject:

also needs debhelp installed.

On my aspire 4315 (i965 gfx, celeron mobile, and 1gig of ram) the screen became unstable with neolite core. de-maximising the window stops that.

With compiz switched off I can run a full neolite system on that machine with full shaders quite happily. Have not tried griffs ships :)
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oolite resources
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DaddyHoggy · Posted: Tue Nov 24, 2009 12:17 pm Post subject:

another_commander · Quite Grand Sub-Admiral Joined: 28 Feb 2007 Posts: 2294

The i965 chipset is fully capable of doing shaders, it's just that Intel's drivers have only relatively recently caught up. That was the situation with Windows at least, but I don't imagine it would be any different (as in better) for Linux.

Simon B · Posted: Fri Dec 11, 2009 10:01 am Post subject:

i950 graphics cards, do not seem to support shaders. No.
The Aspire 4315 uses i965.

The emachine EL1600 plays this game jerkily.
It has i950 gfx - when I go to the game options screen it informs me that shaders are not available.

Intel says the chipset supports:
http://www.intel.com/products/chipsets/gma950/index.htm
Texture Decompression for DirectX* and OpenGL*
OpenGL* 1.4 support plus ARB_vertex_buffer and EXT_shadow_funcs extensions and TexEnv shader caching
... this could mean I have the wrong driver or that the entire functionality has not been implimented in this machine. I'll have to look into this.

The intel drivers are usually slightly ahead in linux.

For more detail on the state of play:
https://www.linuxfoundation.org/collaborate/publications/linux-graphics-essay

Basically, for ATI, the linux drivers pull ahead and fall back periodically. With nvidia, the linux version is always behind.
_________________
Simon Bridge
oolite resources
"Everything is perfect down to every last flaw..."
HTB: The Book of Verse - Principia Discordia

Ahruman · Posted: Fri Dec 11, 2009 6:39 pm Post subject:

GMA 950 supports fragment shaders under Mac OS X (vertex shaders are done in software), but the instruction limit is so low that it’s tricky to write interesting shaders that work on it. One of my interesting upcoming projects is to make sure all flavours of the default shaders work on it in simple shader mode.
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jpab · Poor Joined: 24 Dec 2009 Posts: 6

In Step 2.2, it seems pretty weird to perform a debug build of SpiderMonkey and then *rename* it to pretend it was an optimized release build.
Replacing the two "make -f Makefile.ref" commands (steps 2.2.2 and 2.2.3) with:

Micha · Posted: Thu Dec 31, 2009 9:16 am Post subject:

Just a reminder, using the included 'Makefile' instead of the default GNUMakefile will perform all the build steps automagically, including building optimised versions of the javascript library.

This is all that should be required for a 'release' build from a clean source tree:

Getafix

The first post of this topic has just been updated to simplify the build task without the need of separate javascript build.

Thank you all for your feedback. Keep it coming... Cool

Cheers.
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shazbut · Poor Joined: 01 May 2010 Posts: 5

I can't get it to build any more, using the steps in section 2.4 of the OP. Built fine on 26/4/10, but I've just done:

Getafix · Posted: Sat May 01, 2010 11:54 pm Post subject: /usr/bin/ld: cannot find -lpng14

Welcome aBoard shazbut.

For gaming purposes I suggest you use 1.73.4 test-release.
You may download the packaged version (distro deps free) from here or (if your distro matches) add one of these apt-source lines to your system configuration.

However, if you still want to build from source for the moment use:

shazbut · Poor Joined: 01 May 2010 Posts: 5

Getafix · Posted: Sun May 02, 2010 1:04 am Post subject:

Execute it! Cool

shazbut · Poor Joined: 01 May 2010 Posts: 5

Gah! That was easy, although I'm not sure I like the idea of another package manager messing with my system, but the end result is what counts.

My old save with the spinning question mark of doom (tm) now loads correctly so I am happy. Thanks for your assistance.

Getafix

First post has been updated to handle trunk oolite Linux deps restructure.
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Ubuntu 8.04LTS Desktop amd64 - Intel Pentium Dual Core 2.00GHz - 4GB DDR2 - nVidia 8600GT 512MB
"Any sufficiently advanced information is indistinguishable from noise." [Newman, Lachmann, Moore]