Shadow Mapping in Source

[Dabu]

Thanks for sharing this but to be honest - it still look awful. Especially on models without normal map.

[Gradius]

If you're gonna go dynamic crazy you might want to fix the decal lighting, projected textures tend to break them.

[Bites]

Wait, I thought you said that my fix couldn't set the res above 1024? There's no point in putting res is now changeable in the thread title linking to my post if it doesn't even let us do what we want to do. Unless we're like, getting 32x32 shadowmaps but that's absolutely pointless too.

Also, mat_depthbias_shadowmap 0.00001 and mat_slopescaledepthbias_shadowmap 2 to make the distance from object to shadow much less, even when the object is distant from the light. It causes a very small amount of artifacting but not substantially enough for anybody to care.

[Gary]

Well, it is changeable now, but you are right, it's pointless without going over 1024.


I'll try those values and see how they affect the shadows.

[Gary]

The mat_depthbias_shadowmap set to 0.00001 and mat_slopescaledepthbias_shadowmap at 2 makes quite a difference, I'll make sure to hard code them. Thanks.

[Dabu]

Quite a difference? Now it looks hundred times better.

[Assigir]

all of deserves a medal

[MrTwoVideoCards]

mat_slopescaledepthbias_shadowmap 3-4 is as low as you should go, otherwise certain angled lights are going to create bias on parallel faces:



Check out the shadow edges on the top right of the image!

[Gary]

An update to the one map from the first part of the first level of HL2. Credit to Valve for the brushwork.









Sadly, this has major optimization problems...
First of all, all 10 or so projectedtextures are running constantly... I tried level-based optimization by disabling the lights as the player leaves the area, but for some reason, the game crashes trying to turn projectedtextures back on.

I can't use the code-based optimization fix from the VDC, cause that causes other visibility bugs when you look away from the light. So you better have a good computer when running this level.

Download will be up soon, as you can't do shadows justice in still images.

[Gary]

Thanks to my friend Worfox over at the OC forums telling me that entities with translucent textures cause them to stop casting shadows all together, I ended up cutting the windows and the train into two separate entities, now it looks awesome.

[Gary]

Here is the map posted above, in-case anyone wants to try it out. Sorry, but it's pretty broken, no one talks and a lot of scripted scenes are broken.

Download - 2MB - Requires mod
Included in the download is the one map and a updated client dll. Really, I went kinda crazy with this one...

[kkirspel]

OMG, you sick bastard! You had them shot by a firing squad!

On topic, your first post says the code needs to be fixed, but also says it is now automatically fixed... which is most recent?

[Gary]

I'll make sure, but the orginal post should be the most up to date.

[kkirspel]

Well, its just that they're both in the first post and contradict each other.

Update: These fixes have been added to the VDC!

Make sure to apply the fixes from the VDC!

EDIT: wait... maybe I'm reading it wrong; is the "Update:" saying the fixes have been made in the code by a patch or not?

[Gary]

I am currently updating the original post.


Also, you have to make these changes your self, all the information needed on how to do them are on the VDC.