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Polymer/ART mapping: fix formula for globalvisibility.

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Also, very slightly tweak a factor toward a "brighter" (farther visible)
scene overall to account for the "circular" nature of the fragment distance
(as opposed to an "ortho" distance in Build).

git-svn-id: https://svn.eduke32.com/eduke32@3962 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2013-07-18 18:08:15 +00:00
parent 4f88aaf4d2
commit 2945a966e1
1 changed files with 7 additions and 2 deletions
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9
polymer/eduke32/build/src/polymer.c
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@ -283,7 +283,12 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
"varying vec3 horizDistance;\n"
"\n",
// frag_prog
" float shadeLookup = length(horizDistance) / 1.024 * visibility;\n"
// NOTE: the denominator was 1.024, but we increase it towards a bit
// farther far clipoff distance to account for the fact that the
// distance to the fragment is the common Euclidean one, as opposed to
// the "ortho" distance of Build.
" float shadeLookup = length(horizDistance) / 1.07 * visibility;\n"
" shadeLookup = shadeLookup + shadeOffset;\n"
"\n"
" float colorIndex = texture2D(artMap, commonTexCoord.st).r * 256.0;\n"
@ -4965,7 +4970,7 @@ static int32_t polymer_bindmaterial(_prmaterial material, int16_t* lights,
texunit++;
bglUniform1fARB(prprograms[programbits].uniform_shadeOffset, material.shadeoffset);
bglUniform1fARB(prprograms[programbits].uniform_visibility, (globalvisibility - 2048.0) / 2048.0 + material.visibility);
bglUniform1fARB(prprograms[programbits].uniform_visibility, globalvisibility/2048.0 * material.visibility);
}
// PR_BIT_DIFFUSE_MAP