Shadow Mapping in Source

[dark0r]

"Don't try this"? You haven't told us to try anything :/

[Ken Chan]

It doesn't work until you port it to alien swarm engine, that's what I'm doing.

[joe_rogers_11155]

@darkor: try it

[dark0r]

@darkor: try it

Try what?! The DOF? If so how? D:

[Jordash]

You can get DOF working in 2007 with biohazard's shader editor, I think it's already present in the ASW code, just unused.

[Sandern]

Little off topic here, but I just find a way to enable dof!
It's build-in with all other effect like vignette, film grain, etc.
Here's some screen shots: ...

It might be useful to add that you must set mat_hdr_level to 3 (launch with "+mat_hdr_level 3") in Alien Swarm. For me it defaulted to "2". Then you can just use it by placing an "env_dof_controller" or use"mat_dof_override" to play with the settings.

[Gary]

Biohazard released it:

DOWNLOAD BUILD + SOURCE BELOW

This is a deferred lighting implementation that I've created on the Alien Swarm SDK. It's currently offering shadow mapping for directional/point/spot lights, blinn phong and volumetric scattering via light volumes.

The in-game editor allows you to load from/save to VMF files directly, however parented or named lights (with I/O) will not be editable in-game.

Hundreds of small lights can be rendered with great performance (on a GTX 260), however as soon as they cover a lot of screenspace or are even drawn fullscreen (intersecting light geometry) they become much more expensive.

The renderer firstly draws the skybox/scene to the gbuffer (normals+lighting params and depth), performs light rendering via low poly spheres/cones and does a second pass on the skybox/scene that produces the final result. Due to this, all shadows and lights from the world are directly projectable on the skybox, however geometry in the skybox does not yet cast shadows nor can you place lights in the skybox.

There's currently no hardware filtering support for AMD because I do not own any AMD cards, so I can hardly add that myself. Running this on AMD will either require you to recompile everything with a color based shadow mapping filter (as easy as changing one line of code) or adding fetch4 code - you've been warned.

Source code and demo build can be obtained here:
http://code.google.com/p/swarm-deferred/

[Kosire]

Biohazard released it:

DOWNLOAD BUILD + SOURCE BELOW

This is a deferred lighting implementation that I've created on the Alien Swarm SDK. It's currently offering shadow mapping for directional/point/spot lights, blinn phong and volumetric scattering via light volumes.

The in-game editor allows you to load from/save to VMF files directly, however parented or named lights (with I/O) will not be editable in-game.

Hundreds of small lights can be rendered with great performance (on a GTX 260), however as soon as they cover a lot of screenspace or are even drawn fullscreen (intersecting light geometry) they become much more expensive.

The renderer firstly draws the skybox/scene to the gbuffer (normals+lighting params and depth), performs light rendering via low poly spheres/cones and does a second pass on the skybox/scene that produces the final result. Due to this, all shadows and lights from the world are directly projectable on the skybox, however geometry in the skybox does not yet cast shadows nor can you place lights in the skybox.

There's currently no hardware filtering support for AMD because I do not own any AMD cards, so I can hardly add that myself. Running this on AMD will either require you to recompile everything with a color based shadow mapping filter (as easy as changing one line of code) or adding fetch4 code - you've been warned.

Source code and demo build can be obtained here:
http://code.google.com/p/swarm-deferred/

Yup, saw it eariler today.. It's sick. The best part? Public source code! Now I REALLY expect all high-end mods like Black Mesa to USE this.

The performance? I'm getting easy 70fps on 1920x1200 with everything maxed (No AA) on a freakin 4-5 year old GPU 9800GTX+.

This is the best thing that have happened to Source Engine modding.
Old engine you say sceptics? Not anymore..

[SotaPoika]

@Kosire

Indeed it is great news. We just have to remember, that it is for Alien Swarm SDK, not Src2007 which majority of the mods use. If I recall, this lighting thing didn't work really well on Src2007. Wasn't Black Mesa on Src2007?

[Chrille]

Yes, Black Mesa is 2007

[Gary]

Actually, that mod will be one of the few that would have less trouble going over to ASW.

Edit(fixed):

Also, Bio is so awesome! He added proper CSM(not texture hacks) and the shadow casting point lights(dual paraboloid).


From the google code page:

Features

The deferred rendering pipeline currently implements the following:

cascaded shadow mapping with an atlas
dual paraboloid shadow mapping
perspective shadow maps
different kinds of PCF (color, depth-stencil)
cookies per texture
cookies per VGUI panel
light scattering via light volumes

Lights can be directly loaded from and written to VMF files opposed to placing them in Hammer only.

[MaK]

This is awesome. I really hope Valve sees this.

[joe_rogers_11155]

doesn't biohazard work at valve?

[TheDanishMaster]

Whoops..

Also I managed to die while messing with the light D:

[Shirik]

excuse me me but i ehhh - how can i download that?