[portej05]

Hiya Folks,

This is Antipodes build #4

Antipodes is a staging ground for changes that will eventually make their way into trunk. Antipodes should not be considered stable.

Antipodes #4 has been completed by Hery, and contains the post-processing code.

This build includes trunk to 5681.

Antipodes 4 Executables
Shaders and Tables for PostProcessing

PDBs (for when you have troubles) can be found in this folder:
Antipodes 4 PDBs

Note that they don't compress well. To use: Download matchine PDBs zip, unzip into the SAME location as the executables.
The PDBs have been versioned in the same fashion as the Antipodes executables, so multiple PDB versions can coexist in the same folder. (although, I recommend removing old ones due to their size)

This build adds post-processing to FSO. The main idea behind this rendering technique is to render the scene to a texture and then draw it to the back buffer applying some additional effects at the same time.
There is a huge number of post-processing effects, currently only bloom and few other, really simple ones are implemented. In addition to that there is a possibility to add new post-processing effects (if they are simple enough) without changing FSO code. It can be done by modifying shaders code and post_processing.tbl

Simple post-processing effects (such as contrast, saturation, film grain) can be controlled by a new SEXP: set-post-effect.

Post-processing is enabled by -post_process flag.
Bloom intensity can be controlled by -bloom_intensity X flag (when X = 0 ther's no bloom and the maximum value is 100).

Apart from that, post-processing patch introduces:
 * shader manager with support for main and post-processing shaders
 * wrappers for OpenGL textures, rendering buffers and FBOs

The new code is documented using doxygen-style comments.

[Hery]

Simple instruction what to do with the files from Shaders and Tables for PostProcessing:
1. Copy *.sdr files to data/effects directory
2. Copy *.tbl file to data/tables directory
3. Enable -post_process flag in the launcher

[Reprobator]

It seems like the post process is not applyed on the cockpit, is that normal?
However the cockpit doesn't pass thrgough object anymore! that's nice 

[Hery]

That's a bug I was aware of but then I forgot Fortunately, the build is OK, since the problem is caused by highpass filter.

In order to fix it replace the content of brightpass-f.sdr with the following:

Code: [Select]

uniform sampler2D tex;

const float Luminance = 0.08;
const float fMiddleGray = 0.2;
const float fWhiteCutoff = 0.4;

// High-pass filter
void main() {
vec4 ColorOut = texture2D(tex, gl_TexCoord[0].xy);

ColorOut.rgb *= fMiddleGray / (Luminance + 0.001);
ColorOut.rgb *= (1.0 + (ColorOut.rgb / (fWhiteCutoff * fWhiteCutoff)));
ColorOut.rgb -= 6.0;

ColorOut.rgb /= (10.0 + ColorOut.rgb);

gl_FragColor = ColorOut;
}


[Zacam]

And for those of you that didn't get this from any of the earlier packages (or lost it):
postprocess.fs2

[Colonol Dekker]

Which version of Fred contains the post process sexps again?

Just the filename please, i've got a load of .exes and can't remember which one to use for BLOOM

[MetalDestroyer]

Which version of Fred contains the post process sexps again?

Just the filename please, i've got a load of .exes and can't remember which one to use for BLOOM

Simple post-processing effects (such as contrast, saturation, film grain) can be controlled by a new SEXP: set-post-effect.

[Colonol Dekker]

Yes I know but I don't see an antipodean fred in the zip. So liek where is it?

[Reprobator]

IS there an option somewhere to control the effect applied on the skyboxes pof?
I have one with a moon like planteoid wich is now full bright and has lost all its detail when using post process 

[Hery]

Currently, the only solution is to decrease bloom intensity using a launcher flag.
It is possible to hack a simple and not very good solution to this problem but I decided that's pointless since tone mapping (which will be introduced in the future) will solve the problem completely.

[Reprobator]

Ok, so i'll wait for tone mapping so. 

[Commander Zane]

What does SSE stand for?

[portej05]

The basic gist of it is that they're vector instructions, and can offer performance improvements for certain cases (which is something we really need as much as possible in FSO).

Wikipedia has a writeup on it:
http://en.wikipedia.org/wiki/Streaming_SIMD_Extensions

[portej05]

FRED builds!:

Antipodes #4 FRED (+PDBs)

[Colonol Dekker]

Yay! Now with added sex-pee hopefully

[Talon 1024]

I made my own little unreleased post-processing demo a while back, but I adapted it for the newer post-processing EXE.  Here it is:

http://www.ciinet.org/kevin/Files/pprocess.fs2

[portej05]

Antipodes #4 has now ended.
Thank you to all who took part.

The Post-Processing changes have been committed in 5715.

Enjoy!

[pecenipicek]

woot!

[Zacam]

Updated shaders package linked here for completness sake: http://zacam.ueuo.com/fsu/FSU_and-PostProc_Shaders.7z

[Rodo]

With the new builds it runs faster than before, the only problem is that the bloom is affecting the background nebulae, is that gonna be managed somehow, like a command line or a mission property?.