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make decals generate a surface vector by brute force if it was in a particle effect that doesn't have a specified direction.

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git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@1280 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2005-09-07 01:07:22 +00:00
parent 79022ea924
commit e671736021
1 changed files with 40 additions and 3 deletions
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43
engine/client/r_part.c
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@ -1890,15 +1890,52 @@ int P_RunParticleEffectState (vec3_t org, vec3_t dir, float count, int typenum,
float dist;
vec3_t tangent, t2;
vec3_t vec={0.5, 0.5, 0.5};
static vec3_t up = {0,0.73,-0.73};
float *decverts;
int i;
trace_t tr;
vec3_t bestdir;
if (!free_decals)
return 0;
if (!dir)
dir = up;
{
bestdir[0] = 0;
bestdir[1] = 0.73;
bestdir[2] = 0.73;
dist = 1;
for (i = 0; i < 6; i++)
{
if (i >= 3)
{
t2[0] = ((i&3)==0)*8;
t2[1] = ((i&3)==1)*8;
t2[2] = ((i&3)==2)*8;
}
else
{
t2[0] = -((i&3)==0)*8;
t2[1] = -((i&3)==1)*8;
t2[2] = -((i&3)==2)*8;
}
VectorSubtract(org, t2, tangent);
VectorAdd(org, t2, t2);
if (cl.worldmodel->funcs.Trace (cl.worldmodel, 0, 0,tangent, t2, vec3_origin, vec3_origin, &tr))
{
if (tr.fraction < dist)
{
dist = tr.fraction;
VectorCopy(tr.plane.normal, bestdir);
}
}
}
dir = bestdir;
dir[0]*=-1;
dir[1]*=-1;
dir[2]*=-1;
}
VectorNormalize(vec);
CrossProduct(dir, vec, tangent);
@ -2980,7 +3017,7 @@ qboolean TraceLineN (vec3_t start, vec3_t end, vec3_t impact, vec3_t normal)
VectorSubtract(start, pe->origin, ts);
VectorSubtract(end, pe->origin, te);
pe->model->funcs.Trace(pe->model, 0, 0, ts, te, vec3_origin, vec3_origin, &trace);
if (trace.fraction)
if (trace.fraction<1)
{
VectorSubtract(trace.endpos, ts, delta);
len = Length(delta);