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Make shadows on voxels in Polymost look like they do in classic

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git-svn-id: https://svn.eduke32.com/eduke32@7770 1a8010ca-5511-0410-912e-c29ae57300e0
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terminx 2019-07-06 19:04:54 +00:00 committed by Christoph Oelckers
parent bf94922b27
commit dc9c7bc7b0
1 changed files with 14 additions and 8 deletions
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18
source/build/src/voxmodel.cpp
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@ -1053,9 +1053,11 @@ int32_t polymost_voxdraw(voxmodel_t *m, tspriteptr_t const tspr)
f = (65536.f*512.f) / ((float)xdimen*viewingrange);
g = 32.f / ((float)xdimen*gxyaspect);
int const shadowHack = !!(tspr->extra&TSPR_EXTRA_MDHACK);
m0.y *= f; a0.y = (((float)(tspr->x-globalposx)) * (1.f/1024.f) + a0.y) * f;
m0.x *=-f; a0.x = (((float)(tspr->y-globalposy)) * -(1.f/1024.f) + a0.x) * -f;
m0.z *= g; a0.z = (((float)(k0 -globalposz)) * -(1.f/16384.f) + a0.z) * g;
m0.z *= g; a0.z = (((float)(k0 -globalposz - shadowHack)) * -(1.f/16384.f) + a0.z) * g;
float mat[16];
md3_vox_calcmat_common(tspr, &a0, f, mat);
@ -1069,7 +1071,7 @@ int32_t polymost_voxdraw(voxmodel_t *m, tspriteptr_t const tspr)
mat[12] = -mat[12];
}
if (tspr->extra&TSPR_EXTRA_MDHACK)
if (shadowHack)
{
glDepthFunc(GL_LEQUAL); //NEVER,LESS,(,L)EQUAL,GREATER,(NOT,G)EQUAL,ALWAYS
// glDepthRange(0.0, 0.9999);
@ -1090,13 +1092,17 @@ int32_t polymost_voxdraw(voxmodel_t *m, tspriteptr_t const tspr)
pc[0] = pc[1] = pc[2] = ((float)numshades - min(max((globalshade * shadescale) + m->shadeoff, 0.f), (float)numshades)) / (float)numshades;
hictinting_apply(pc, globalpal);
pc[3] = (tspr->cstat&2) ? glblend[tspr->blend].def[!!(tspr->cstat&512)].alpha : 1.0f;
if (!shadowHack)
{
pc[3] = (tspr->cstat & 2) ? glblend[tspr->blend].def[!!(tspr->cstat & 512)].alpha : 1.0f;
pc[3] *= 1.0f - spriteext[tspr->owner].alpha;
handle_blend(!!(tspr->cstat & 2), tspr->blend, !!(tspr->cstat & 512));
if ((tspr->cstat&2) || spriteext[tspr->owner].alpha > 0.f || pc[3] < 1.0f)
glEnable(GL_BLEND); //else glDisable(GL_BLEND);
if (!(tspr->cstat & 2) || spriteext[tspr->owner].alpha > 0.f || pc[3] < 1.0f)
glEnable(GL_BLEND); // else glDisable(GL_BLEND);
}
else pc[3] = 1.f;
//------------
//transform to Build coords
@ -1178,7 +1184,7 @@ int32_t polymost_voxdraw(voxmodel_t *m, tspriteptr_t const tspr)
//------------
glDisable(GL_CULL_FACE);
// glPopAttrib();
if (tspr->extra&TSPR_EXTRA_MDHACK)
if (shadowHack)
{
glDepthFunc(GL_LESS); //NEVER,LESS,(,L)EQUAL,GREATER,(NOT,G)EQUAL,ALWAYS
// glDepthRange(0.0, 0.99999);