Making cube-maps

[Springheel]

One of the missing assets we have to replace is a tiny 64x64 cubemap of D3 hallways. I think it's just used in some of our reflective textures to simulate reflecting a generic indoor environment.

 

Obviously, since it's using D3 environments and no one noticed, the replacement doesn't have to be very complex, but I don't really remember how to take cubemap shots. Does anyone have one they've already made for water reflections in their map I could use? Or is there someone who could volunteer to make one?

 

Here's one part of the existing one, blown up:

[nbohr1more]

Here's the wiki:

 

http://wiki.thedarkmod.com/index.php?title=Cube_maps

 

Just stand around in a typical TDM environment and invoke

 

envshot <name> 256

 

(I think sizes over 256 are distorted but that might be fixed in the 1.3.1 patch ?)

 

I can make one possibly by next weekend... I think...

[Bikerdude]

I can make one possibly by next weekend... I think...

I have a bunch of work to do on nhat... so feel free to do the cube map for springs if he dosent get around to doing it himself.

[demagogue]

I actually remember noticing those lights in reflections and finding them annoying & hoping they'd get taken out.

And now they are.

[nbohr1more]

Ideally, the cubemaps used in reflections would be based on location. So you would not have one universal cubemap

but instead many set-up per location. This is what HL2 does. The problem there is that a cubemap is also static, meaning

if the lighting in a room changes the cubemap wont reflect that change. Still... having multiple cubemaps would look

better than only one.

 

As for the cubemap in this topic, I think it is also used as a source for the ambient light textures. It may be best to have a close

approximate handy so that the whole brightness calibration is not thrown-off by the new version.

[Springheel]

How would it relate to ambient light?

[nbohr1more]

The shading of the normal maps comes from a cubemap:

 

 

 

// TDM Ambient Method Related

{

if (global5 == 1)

blend add

map textures/darkmod/yourname // Diffuse

scale 1, 1

red global2

green global3

blue global4

}

{

if (global5 == 2)

blend add

program ambientEnvironment.vfp

vertexParm 0 1, 1, 1, 1 // UV Scales for Diffuse and Bump

vertexParm 1 1, 1, 1, 1 // (X,Y) UV Scale for specular

vertexParm 2 global2, global3, global4, 1

 

fragmentMap 0 cubeMap env/gen1

fragmentMap 1 textures/darkmod/yourname_local // Bump

fragmentMap 2 textures/darkmod/yourname // Diffuse

fragmentMap 3 textures/darkmod/yourname_s // Specular

 

 

That said, it looks like I'm wrong unless env/gen2 is derivative of gen1...

[nbohr1more]

I'm gonna need to install an older TDM build to get this to work.

 

envshot is broken in TheDarkMod.exe

 

See tracker 3368

[Springheel]

The shading of the normal maps comes from a cubemap:

 

Not anymore. The "2" option has been removed as of 1.08, I believe.

[nbohr1more]

TDM 1.06 the envshot command works like a charm.

 

I captured the images, brightened them, desaturated them and blurred them

 

These should be reasonably generic reflections.

 

https://dl.dropboxusercontent.com/u/17706561/env_images.zip

 

https://dl.dropboxusercontent.com/u/17706561/env_images.zip

 

I will work on material defs tomorrow.

[Springheel]

Great, thanks!

[nbohr1more]

I couldn't find the base material for env/gen2 in pak000.pk4 ?

 

It looks like you'd just need to rename these files from test_nx.tga to gen2_nx.tga .

 

The only materials that reference these files are located in glass.mtr and sfx.mtr.

 

I made a combined material and replaced env/gen2 in the shaders with env/genTDM

 

Just rename all the images from text_nx.tga to genTDM.tga (etc) then this should be clear of

any copyright issue with Doom 3 as I imagine. Or if the glass and sfx materials have already been

altered then just rename to gen2 as above and forget about this material.

genTDM.mtr.txt

[Springheel]

Thanks, all working!

[nbohr1more]

Tested envshot in TDM 2.0 and it's working. Thanks Taaaki!

Edited June 11, 2013 by nbohr1more

[Bikerdude]

One of the missing assets we have to replace is a tiny 64x64 cubemap of D3 hallways. I think it's just used in some of our reflective textures to simulate reflecting a generic indoor environment.

Did you get around to doing this springs..?

[Springheel]

Everything was replaced, but I don't remember if I did it or someone else did.

[Bikerdude]

Grand.