[TEC] Pixel Shader

[Anvart]

Originally Posted by Hitman

...
if the screen resolution instructions can be "intercepted" and resized via an external DLL, as the hi-res tweak does, then I suppose that the same technic can be used to change other parameters, right?

It's called hooking ..., right?

Another idea (Brainstorming): If the currently built-in AA modifier (SHIFT+Page Up/down) is using some sort of post processing filter, may be the parameters for it are somewhere in an external file. If we find this file, we could use the in-game built tool to provide other effects

... hardcoded in executable files ... hook this call and execute new dll, right?
Ну ... можно и штаны через голову одевать ...
If interestingly, you can use (for example) 3D Ripper DX for capture some shaders code (SP v. 1.1) from memory ...

[Letum]

I ran 3dripperDX and the shaders output file gets longer when the shift+pgup
mode is on, so yes, it is a post-processed shader effect.

[Letum]

Whilst we are innovating a little....
I came across SH3's water tile.
Does anyone know if this is stored in a .dat file? Which one?

[Hitman]

Mmmm the model for the waves is stored somewhere, recenly Seeadler or OLC (Can't remember who) showed a polygon model of the SH3 sea, and it was exactly what you are showing, but without texture.

[Seeadler]

All of this can be done theoretically with DirectX API Hooking.
Theoretically, because DirectX programs does not always follow the guidelines by Microsoft, because programmers may have used certain techniques to bypass DX functions to obtain a speed advantage in their games.

If someone is interested in such things, a tool for Morrowind use hooking techniques and is open-source:
http://morrgraphext.wiki.sourceforge.net/Misc

The mentioned Oblivion Shader Editor is also open-source:
http://timeslip.chorrol.com/

[onelifecrisis]

Thanks Seeadler.

I found this. Could it be used? If so, any idea how to change it to apply a custom pixel shader? Looking at that code I'm completely lost.

[Seeadler]

Originally Posted by onelifecrisis

I found this. Could it be used?

I've tested it with SH3 but it don't work because these applications manually load D3D9.dll via LoadLibrary as described as limitations in the linked thread.

SH3 needs a d3d9.dll wrapper instead of a DX dll injection, a d3d9.dll wrapper like the one for the high-res fix. This wrapper must done the same work for high-res (otherwise this feature get lost) and the desired custom shader functions.

d3d9.dll wrapper example:
http://www.codeguru.com/cpp/g-m/dire...cle.php/c11453

[Seeadler]

I've got a very basic D3D hook in work, it's not stable, sometimes the dll injection don't work (particularly with Vista) but I can overwrite the BeginScene() and EndScene() funtion a for example. To implement post-processing effects, a little bit more must be done, but yes it seems be possible.

[onelifecrisis]

Impressive!

[johan_d]

Nice, then a postprocess effect to let the scene look like Das Boot or perhaps old movies, and we are set!

[Azrael Valedhel]

So... is anyone doing anything with this? It could be pretty cool to e.g. change colors of the scene. Make some kind of bloom effect maybe?

[flakmonkey]

Originally Posted by johan_d

Nice, then a postprocess effect to let the scene look like Das Boot or perhaps old movies, and we are set!

Just a side note, most modern lcd monitors come with a bunch of effects like b&w/sepia/cartoon etc, its pretty easy to get that movie look by applying one of these effects and tweaking the contrast.

[Anvart]

one-two of tonns ...
DX-Tweaker 2005.1
3D-Analyze 2.36b