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// Sphere.tra
// Author - MrC
// Based on FadeSphere.r4 by Gordon Williams
const int stripx = 32;
const int stripy = 16;
int x,y;
float dx,da,db,sa,sb,a,b,mytime;
void Init()
{
}
void Render()
{
mytime = mytime + (TIMEPASS * 0.25);
FINISHED = (mytime>1);
gfxSetTexture(TEXTURE_NEXTPRESET);
gfxSetAspect(0);
gfxTranslate(0,0,2.414);
gfxColour(1, 1, 1, 1);
gfxTexRect(-1, 1, 1, -1);
gfxTranslate(0,0,-2.414);
a = mytime*2;
if (a>1.0) a=1.0;
a = (1.0-Cos(a*3.14159))/2.0;
gfxSetAspect(a);
b = (mytime*2)-1.0;
if (b<0.0) b=0.0;
b = (1.0-Cos(b*3.14159))/2.0;
gfxTranslate(b*6,0,2.414+(a*1.5));
gfxRotate(mytime*720,1,1,1);
gfxSetTexture(TEXTURE_CURRPRESET);
gfxColour(1,1,1,1);
for (y=0;y<stripy;y=y+1)
{
da = (1.0*y)/stripy;
db = (1.0*(y+1))/stripy;
sa = Sin(da*3.14159);
sb = Sin(db*3.14159);
da = -Cos(da*3.14159);
db = -Cos(db*3.14159);
gfxBegin(PRIM_QUADSTRIP);
for (x=0;x<=stripx;x=x+1)
{
dx = (1.0*x)/stripx;
gfxTexCoord(dx,(da*-0.5)+0.5);
gfxVertex(((dx*2.0)-1.0)*(1.0-a)+(Cos(3.14159*2.0*dx)*a*sa),da,(Sin(3.14159*2.0*dx)*a*sa));
gfxTexCoord(dx,(db*-0.5)+0.5);
gfxVertex(((dx*2.0)-1.0)*(1.0-a)+(Cos(3.14159*2.0*dx)*a*sb),db,(Sin(3.14159*2.0*dx)*a*sb));
}
gfxEnd();
}
}
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