Marco Crocetta (onyx++at++datamat.it)
Thu, 2 Mar 95 12:23:24 MET
I have some problems with pfESkyFog().
I'd like to simulate a small (height) fog layer at horizon of my scene in order
to obtain a sort of mixing between the scene horizon (sea) and the sky or,
more generally, a distant haze that i can manage i height.
I didn't found any reference for fog height in the pfFog man pages so I thoght
to use the pfESky facilities. This is a fragment of my code.
static void initFog(void)
{
fog1 = pfNewFog(pfGetSharedArena());
pfFogType(fog1, PFFOG_PIX_LIN);
pfFogColor(fog1, 1.0f, 1.0f, 1.0f);
}
static void initEarthSky(void)
{
pfEarthSky *es;
es = pfNewESky();
pfESkyMode(es, PFES_BUFFER_CLEAR, Shared->earthSkyMode); /*PFES_SKY*/
pfESkyAttr(es, PFES_GRND_FOG_TOP, 0.5f);
pfESkyFog(es,PFES_GRND,fog1);
pfESkyAttr(es, PFES_GRND_HT, 0.5f);
...
...
}
The result is... that I have a fog totally covering my sky.
I have the same effect using PFES_CLOUD_TOP/BOTTOM the clouds layer
cover the whole sky.
Where is my mistake?
Thanks in advance
P.S. Thanks to Lance R. Marrou for the help about my Intersection
problems!
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