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nearplane fix

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git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@6417 e016b1c5-ed68-44aa-a2f7-31cac88cffde
This commit is contained in:
Lee Salzman
2011-05-11 09:32:28 +00:00
parent a89b9f2dab
commit 9bc5934c17
1 changed files with 8 additions and 8 deletions
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source/src/shadow.cpp
+8 -8
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@@ -160,7 +160,7 @@ bool addshadowbox(const vec &bbmin, const vec &bbmax, const vec &extrude, const
{
vec4 &p = v[i];
mat.transform(vec(i&1 ? bbmax.x : bbmin.x, i&2 ? bbmax.y : bbmin.y, i&4 ? bbmax.z : bbmin.z), p);
if(p.z >= 0)
if(p.z >= -p.w)
{
float x = p.x / p.w, y = p.y / p.w;
sx1 = min(sx1, x);
@@ -172,13 +172,13 @@ bool addshadowbox(const vec &bbmin, const vec &bbmax, const vec &extrude, const
}
vec4 ev;
mat.transform(extrude, ev);
if(ev.z < 0 && !front) return false;
if(front < 8 || ev.z < 0) loopi(8)
if(ev.z < -ev.w && !front) return false;
if(front < 8 || ev.z < -ev.w) loopi(8)
{
const vec4 &p = v[i];
if(p.z >= 0)
if(p.z >= -p.w)
{
if(ev.z >= 0) continue;
if(ev.z >= -ev.w) continue;
float t = ev.z/(ev.z - p.z),
w = ev.w + t*(p.w - ev.w),
x = (ev.x + t*(p.x - ev.x))/w,
@@ -192,7 +192,7 @@ bool addshadowbox(const vec &bbmin, const vec &bbmax, const vec &extrude, const
loopj(3)
{
const vec4 &o = v[i^(1<<j)];
if(o.z < 0) continue;
if(o.z < -o.w) continue;
float t = p.z/(p.z - o.z),
w = p.w + t*(o.w - p.w),
x = (p.x + t*(o.x - p.x))/w,
@@ -202,7 +202,7 @@ bool addshadowbox(const vec &bbmin, const vec &bbmax, const vec &extrude, const
sx2 = max(sx2, x);
sy2 = max(sy2, y);
}
if(ev.z < 0) continue;
if(ev.z < -ev.w) continue;
float t = p.z/(p.z - ev.z),
w = p.w + t*(ev.w - p.w),
x = (p.x + t*(ev.x - p.x))/w,
@@ -212,7 +212,7 @@ bool addshadowbox(const vec &bbmin, const vec &bbmax, const vec &extrude, const
sx2 = max(sx2, x);
sy2 = max(sy2, y);
}
if(ev.z >= 0)
if(ev.z >= -ev.w)
{
float x = ev.x/ev.w, y = ev.y/ev.w;
if((sx1 >= 1 && x >= 1) || (sy1 >= 1 && y >= 1) || (sx2 <= -1 && x <= -1) || (sy2 <= -1 && y <= -1)) return false;