[Bobboau]

aw crap, I just looked at the images, jpg compression sucked the life out of them

anyway I've gotten glow mapping to work just now, as far as I can tell it isn't slowing down rendering too much,
to enable it simply make a version of a texture as you would like it to look if completly unlit give it the exact same name with "-glow" taged onto the end of it, I'm going to spent the next few hours makeing glowmaps for a bunch of ships becase there fairly easy to do

there is still a bit of tweaking to do with the alpha values and such, suprizeingly this was realy simple to implement (note it was implemented at the API level for direct X only I recomend one of you OGL boys get a similar effect soon, after a bit more tweaking I am going to commit and post an explaination of how I did it), note this is _not_ a luminance map, it is a form of multi-pass textureing, I repete the final step in the rendering proces with verts that have had there lighting values set to fullbright and useing additive alpha, I made an index of glow maps for each texture, the maps are loaded when a texture is loaded for a pof,
remember, it looks for texture_name"-glow"

I just realised I never tested this out in game, you wan'a give it a shot

[mikhael]

Bob, that's some damn sexy work. Very nice. Makes Shivans spookier.

[Knight Templar]

Originally posted by Mikhael

Bob, that's some damn sexy work. Very nice. Makes Shivans spookier.

 

[Turnsky]

Hmmm, the code is strong in this one.


anywho, nice work, i might give it a try..

[Bobboau]

give me a minute and I'll have most of the ships remapped

[Fury]

I wonder what kind of FS2 we're playing next Christmas...

Well done Bobboau!

[Bobboau]

there we are
ok, got the right version of the files up,
is the exe working for everyone?

that should keep you prety good, I got most (not all) of the maps that realy need illumination,
now I'm not sure how this is going to affect performence (the effect is only on the highest LOD, this is up to you to maintain if you desire), every poly is geting rendered twice (note it isn't geting transformed lit rotated and everything twice), I'm gona do  some testing and go to sleep, tomaro I'll upload the code
holy crap! I have been up for over 25 hours!!!

[Fetty]

*hands bob a bottle of booze*
great work

[Bobboau]

there seems to be one decal related bug, I'm gona pave over for the time, I'm going to get a more finlized version working and also I'm going to post all the code I changed to make this work

at the very end of gr_d3d_tmapper_internal, directly below d3d_DrawPrimitive(...blahblahblah...);

Code: [Select]

//this is my hack to get some sort of luminence mapping-Bobboau
if(GLOWMAP[gr_screen.current_bitmap] > 0){

gr_screen.gf_set_bitmap(GLOWMAP[gr_screen.current_bitmap], GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, 0.0f);
if ( !gr_tcache_set(gr_screen.current_bitmap, tmap_type, &u_scale, &v_scale, 0, gr_screen.current_bitmap_sx, gr_screen.current_bitmap_sy )) {
mprintf(( "Not rendering a texture because it didn't fit in VRAM!\n" ));
return;
}

gr_d3d_set_state( TEXTURE_SOURCE_DECAL, ALPHA_BLEND_ALPHA_ADDITIVE, zbuffer_type );

for (i=0; i {
d3d_verts[i].color = RGBA_MAKE(255, 255, 255, 0);
}
d3d_DrawPrimitive(D3DPT_TRIANGLEFAN, D3DVT_TLVERTEX, (LPVOID)d3d_verts, nverts, NULL);
}


ok right at the end of the main for loop in the ID_TXTR loading section of read_model_file

Code: [Select]


//a quick hack for glow mapping-Bobboau
strcat( tmp_name, "-glow");
mprintf(("looking for glow map %s\n", tmp_name));
GLOWMAP[pm->textures[i]]=bm_load( tmp_name ); //see if there is one
if(GLOWMAP[pm->textures[i]]!=-1){//then fill it into the array
mprintf(("texture '%s' has a glow map, %d, assosiated with it, isn't that nice\n", tmp_name, GLOWMAP[pm->textures[i]]));
bm_lock((GLOWMAP[pm->textures[i]]), 8, BMP_AABITMAP);
bm_unlock((GLOWMAP[pm->textures[i]]));



int GLOWMAP[MAX_BITMAPS] = {-1};

goes into BmpMan.cpp

extern int GLOWMAP[MAX_BITMAPS] ;

goes into BmpMan.h

add    GLOWMAP[n] = -1;//make sure to load a glow map after you have loaded a texture
 at the end of bm_load()

[Ypoknons]

Yeh! Wondering whether this could be done with decals too.

[Bobboau]

I did just get an asertion failure, but it seems to be running fairly smooth otherwise, I also think I may have solved the decals killing the framerate thing,
I'm gona see if I can track that assertion failure down before makeing a relese build and posting this on the main boards.

[Bobboau]

agh, to hell with it I'll fix it tomaro, I'm makeing a relese build and posting a zip on the main forum

[Nico]

"french kisses bobboau"
"vomits, but feels better anyway"

Rahhhh! The ONE thing I really wanted, that I kept asking for!!!
"builds a shrine to worship bob"

[ZylonBane]

Originally posted by Bobboau
I repete the final step in the rendering proces with verts that have had there lighting values set to fullbright and useing additive alpha

How is the end result different from just rendering -glow textures fullbright in the first place?

[Nico]

bah, the damn debug file stops at all the tbl anotations
I'll wait for a clean exe.

[Solatar]

Please put this in the next version of fs2_open. Please!


Damn nice.

[phreak]

im gonna hack this into ogl now


edit: looks like bob has to commit before i do something.

[Turnsky]

well the man has to sleep....

[phreak]

i worked out something for opengl, but i want the other stuff committed before i test it out

edit: 1/8/03 -- updated code

in gr_opengl_tmapper_internal()

Code: [Select]


...
int bitmapidx=gr_screen.current_bitmap % MAX_BITMAPS;
int do_glow=(GLOWMAP[bitmapidx] > 0);

...

if ( flags & TMAP_FLAG_TEXTURED )       {
if (do_glow)
{
//mprintf(("rendering a glow texture %s\n", bm_get_filename(GLOWMAP[bitmapidx])));
glPushAttrib(GL_TEXTURE_BIT);
glActiveTextureARB(GL_TEXTURE0_ARB); //texture is bound in gr_opengl_tcache_set
glEnable(GL_TEXTURE_2D);
texture_source=TEXTURE_SOURCE_DECAL;
}

if ( !gr_tcache_set(gr_screen.current_bitmap, tmap_type, &u_scale, &v_scale, 0, gr_screen.current_bitmap_sx, gr_screen.current_bitmap_sy ))
{
mprintf(( "Not rendering a texture because it didn't fit in VRAM!\n" ));
return;
}

if (do_glow)
{
gr_opengl_set_state(texture_source, alpha_blend, zbuffer_type);
gr_set_bitmap(GLOWMAP[bitmapidx], GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, 0.0f);
glActiveTextureARB(GL_TEXTURE1_ARB);
glEnable(GL_TEXTURE_2D);
texture_source=TEXTURE_SOURCE_ADD;
//texture is bound in gr_opengl_tcache_set
if ( !gr_tcache_set(gr_screen.current_bitmap, tmap_type, &u_scale, &v_scale, 0, gr_screen.current_bitmap_sx, gr_screen.current_bitmap_sy ))
{
mprintf(( "Not rendering a texture because it didn't fit in VRAM!\n" ));
return;
}
gr_opengl_set_state(texture_source, alpha_blend, zbuffer_type);
}
...

if ( flags & TMAP_FLAG_TEXTURED )       {
tu = va->u*u_scale;
tv = va->v*v_scale;
if (do_glow)
{
//use opengl hardware multitexturing
glMultiTexCoord2fARB(GL_TEXTURE0_ARB,tu,tv);
glMultiTexCoord2fARB(GL_TEXTURE1_ARB,tu,tv);
}
else
{
glTexCoord2f(tu, tv);
}
}


in read_model_file()
fixed bounding errors

Code: [Select]


...
strcat( tmp_name, "-glow");
int glow_idx=pm->textures[i] % MAX_BITMAPS;
mprintf(("looking for glow map %s\n", tmp_name));
GLOWMAP[glow_idx]=bm_load( tmp_name ); //see if there is one
if(GLOWMAP[glow_idx]!=-1){//then fill it into the array
mprintf(("texture '%s' has a glow map, %d, assosiated with it, isn't that nice\n", tmp_name, GLOWMAP[glow_idx]));
bm_lock((GLOWMAP[glow_idx]), 8, BMP_AABITMAP);
bm_unlock((GLOWMAP[glow_idx]));

}


[Anaz]

good god...the shivans as never before...

*imagines the result of this + tbp's ambient light fix*


not only can this be used for freaky shivans, but it also could be used (in the future probably) for making cap ship lights look bright...