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Shader Thread
Posted: 04 Sep 2013, 10:49
by ErikB
Hoi, I've been tinkering with shaders and figured I might as well post them when/if I do something amusing. I encourage you to do the same.
The Rules here:
a) I (and probably everyone else here) do not take requests. This is for fun, tinkering, playing and testing and maybe it is helpful, maybe it isn't, take it or leave it.
b) Everything is as-is and not sanctioned by our development. These may work, they may cause your multi-million dollar GPU to spontaneously implode in a pyrotechnic lightshow. They are certainly not refined, there are guaranteed to be ways to do it better, faster, stronger whatever. Take it or leave it.
c) If you want to change them in an interesting way, go ahead, but please post them back up here if you do.
Re: Shader Thread
Posted: 04 Sep 2013, 10:53
by ErikB
And here, to kick it off, is a little ripple/water/noise shader. (Ventuz 4)
Re: Shader Thread
Posted: 04 Sep 2013, 11:06
by ErikB
and here is a ribbon shader kind of thing (Ventuz 4). Play with the properties, can get a lot of varied results from this one. It will support color or material node, no textures, tho.
Re: Shader Thread
Posted: 04 Sep 2013, 13:58
by ErikB
..and here another variation of ribbons.
Re: Shader Thread
Posted: 04 Sep 2013, 17:09
by ErikB
...and here are some stars. Adapted from a shadertoy, not sure how useful it is, but it looks awesome. The settings are somewhat finicky.
Re: Shader Thread
Posted: 05 Sep 2013, 13:15
by chriss0212
hi eric
very nice!! and running on ventuz4 as well!
just the starfield seems to be VERY performance hungry.
PLEASE GO ON
greetz
christian
Re: Shader Thread
Posted: 05 Sep 2013, 13:42
by ErikB
chriss0212 wrote:hi eric
very nice!! and running on ventuz4 as well!
just the starfield seems to be VERY performance hungry.
PLEASE GO ON
greetz
christian
yeah I noticed there are one or two of the parameters that cause it to come to a grinding halt with even tiny changes. So try playing with the parameters if it is too slow. It does look cool though... I have a bunch of other ones I have sort of working, we'll see what I get around to, but I'll throw more up as I play around. Let me know if they are useful!
Re: Shader Thread
Posted: 05 Sep 2013, 15:40
by squiggle
chriss0212 wrote:very nice!! and running on ventuz4 as well!
"Error importing Acrhive -- malformed stream: bad tag" means all of them are Ventuz 4
only, right? Pity -- we won't (be able to) upgrade in the foreseeable future
squiggle
Re: Shader Thread
Posted: 05 Sep 2013, 15:54
by ErikB
correct, they are all built in Ventuz 4.
-E
Re: Shader Thread
Posted: 06 Sep 2013, 03:42
by ErikB
a shader that allows you to blend 2 textures (or movies, or render targets) using the photoshop blend methods. (screen, overlay, darken etc - about 20 of them)
EDIT:
- now supports image processing (Gamma, Brightness, Contrast, Saturation, max/min in-out) on all layers
- alpha channels work properly (switchable)
- supports a separate mask layer
I will revisit this one at some point, a lot I could still do, such as add more texture layers, support for materials, etc.
-E