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small fix

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git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4823 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2015-01-07 13:56:16 +00:00
parent c7e4a1b183
commit 16868f1604
2 changed files with 75 additions and 67 deletions
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140
engine/common/q1bsp.c
View file

@ -955,6 +955,79 @@ Physics functions (common)
============================================================================
Utility function
*/
#define MAXFRAGMENTVERTS 360
int Fragment_ClipPolyToPlane(float *inverts, float *outverts, int incount, float *plane, float planedist)
{
#define C 4
float dotv[MAXFRAGMENTVERTS+1];
char keep[MAXFRAGMENTVERTS+1];
#define KEEP_KILL 0
#define KEEP_KEEP 1
#define KEEP_BORDER 2
int i;
int outcount = 0;
int clippedcount = 0;
float d, *p1, *p2, *out;
#define FRAG_EPSILON 0.5
for (i = 0; i < incount; i++)
{
dotv[i] = DotProduct((inverts+i*C), plane) - planedist;
if (dotv[i]<-FRAG_EPSILON)
{
keep[i] = KEEP_KILL;
clippedcount++;
}
else if (dotv[i] > FRAG_EPSILON)
keep[i] = KEEP_KEEP;
else
keep[i] = KEEP_BORDER;
}
dotv[i] = dotv[0];
keep[i] = keep[0];
if (clippedcount == incount)
return 0; //all were clipped
if (clippedcount == 0)
{ //none were clipped
for (i = 0; i < incount; i++)
VectorCopy((inverts+i*C), (outverts+i*C));
return incount;
}
for (i = 0; i < incount; i++)
{
p1 = inverts+i*C;
if (keep[i] == KEEP_BORDER)
{
out = outverts+outcount++*C;
VectorCopy(p1, out);
continue;
}
if (keep[i] == KEEP_KEEP)
{
out = outverts+outcount++*C;
VectorCopy(p1, out);
}
if (keep[i+1] == KEEP_BORDER || keep[i] == keep[i+1])
continue;
p2 = inverts+((i+1)%incount)*C;
d = dotv[i] - dotv[i+1];
if (d)
d = dotv[i] / d;
out = outverts+outcount++*C;
VectorInterpolate(p1, d, p2, out);
}
return outcount;
}
/*
========================
Rendering functions (Client only)
*/
#ifndef SERVERONLY
@ -1216,73 +1289,6 @@ static void Fragment_ClipTriangle(fragmentdecal_t *dec, float *a, float *b, floa
#else
#define MAXFRAGMENTVERTS 360
int Fragment_ClipPolyToPlane(float *inverts, float *outverts, int incount, float *plane, float planedist)
{
#define C 4
float dotv[MAXFRAGMENTVERTS+1];
char keep[MAXFRAGMENTVERTS+1];
#define KEEP_KILL 0
#define KEEP_KEEP 1
#define KEEP_BORDER 2
int i;
int outcount = 0;
int clippedcount = 0;
float d, *p1, *p2, *out;
#define FRAG_EPSILON 0.5
for (i = 0; i < incount; i++)
{
dotv[i] = DotProduct((inverts+i*C), plane) - planedist;
if (dotv[i]<-FRAG_EPSILON)
{
keep[i] = KEEP_KILL;
clippedcount++;
}
else if (dotv[i] > FRAG_EPSILON)
keep[i] = KEEP_KEEP;
else
keep[i] = KEEP_BORDER;
}
dotv[i] = dotv[0];
keep[i] = keep[0];
if (clippedcount == incount)
return 0; //all were clipped
if (clippedcount == 0)
{ //none were clipped
for (i = 0; i < incount; i++)
VectorCopy((inverts+i*C), (outverts+i*C));
return incount;
}
for (i = 0; i < incount; i++)
{
p1 = inverts+i*C;
if (keep[i] == KEEP_BORDER)
{
out = outverts+outcount++*C;
VectorCopy(p1, out);
continue;
}
if (keep[i] == KEEP_KEEP)
{
out = outverts+outcount++*C;
VectorCopy(p1, out);
}
if (keep[i+1] == KEEP_BORDER || keep[i] == keep[i+1])
continue;
p2 = inverts+((i+1)%incount)*C;
d = dotv[i] - dotv[i+1];
if (d)
d = dotv[i] / d;
out = outverts+outcount++*C;
VectorInterpolate(p1, d, p2, out);
}
return outcount;
}
void Fragment_ClipPoly(fragmentdecal_t *dec, int numverts, float *inverts)
{
//emit the triangle, and clip it's fragments.

2
engine/gl/gl_heightmap.c
View file

@ -4794,6 +4794,7 @@ size_t Terr_GenerateBrushFace(vecV_t *points, size_t maxpoints, vec4_t *planes,
return numverts;
}
#ifndef SERVERONLY
void Terr_Brush_Draw(heightmap_t *hm, batch_t **batches, entity_t *e)
{
#ifndef _DEBUG
@ -4909,6 +4910,7 @@ void Terr_Brush_Draw(heightmap_t *hm, batch_t **batches, entity_t *e)
}
#endif
}
#endif
brushtex_t *Terr_Brush_FindTexture(heightmap_t *hm, char *texname)
{