Spring RTS Engine

Hurmph hurmph maybe its time to start mapping again

Tried it out.

So... er...

No offense meant, but why is it doing specular stuff when I've set specular to all zeroes? Didn't I send you that version that didn't have these issues?

<reads shader>

Oh, so basically you didn't get it at all, all the problems are still there. Oh well, not my problem

Addendum #2: as of Spring 0.83, SSMF maps can be given more apparent detail through the use of an additive-overlay normal texture. The alpha-channel of this texture serves as the blending factor between the terrain and texture normals. Your map's SMD should contain
which produces

Splatting the _detail_map across the whole map is a really bad idea.
It would be much better if you merged it into behe's algo.
Also you shouldn't blend the normalmap, instead you should multiply-add (and use the alpha as multiply-scale) and renormalize it, so the ground normal isn't lost.

Read before you comment, nothing gets lost:
It's done with a non-tiling TS normal texture since those are much easier to generate, but I'll add the repeat-distribute variant as well.

Nice stuff kloot, I think I'll give it a whirl. 1k by 1k should nearly match terrain anyway, and not give too much of a file size increase. My current SSMF additions usually result in 5 megs extra sd7 size.

Kloot wrote:Read before you comment, nothing gets lost:

Code: Select all

// blend between original and rotated TS detail normal
normal = normalize((groundN * (1 - a)) + ((TBN * detailN) * a))

I read it very well and the ground normal is lost with alpha = 1.
The standard approach for merging normals is this: PS: there is also a blend function in GLSL.

What setting controls the aggressiveness of the splatting?

I'd like to be able to avoid this:

NM, found it. Splattex alpha channel.

erm no?

there are 4 splattex channels (RGBA) and each channel controls a separate splattex.
So you have 2 textures: one with 4 separate channels for the distribution (:= `aggressiveness`) and one detailtex with 4 separate detailmaps (each channel = one intensity-only detailmap).

So the `aggressiveness` is controlled via EACH channel. So if you want to reduce the effect of splattexB then you reduce the value in channelB.

You can reduce the aggressiveness by making the channel closer to 0.5. But there is a method built in for this, its called:

SplatTexMults
Specifies the intensity a texture will be overlayed with. Values of 0 means that the corresponding textures wont be painted at all. Defaults to 1 1 1 1.