private void calcArgbEndcap(boolean tCylinder) {
tEndcapOpen = false;
if ((endcaps == Graphics3D.ENDCAPS_SPHERICAL) || (dzB == 0)) return;
xEndcap = xA;
yEndcap = yA;
zEndcap = zA;
int[] shadesEndcap;
if (dzB >= 0 || !tCylinder) {
intensityEndcap = Shade3D.calcIntensity(-dxB, -dyB, dzB);
colixEndcap = colixA;
shadesEndcap = shadesA;
// Logger.debug("endcap is A");
} else {
intensityEndcap = Shade3D.calcIntensity(dxB, dyB, -dzB);
colixEndcap = colixB;
shadesEndcap = shadesB;
xEndcap += dxB;
yEndcap += dyB;
zEndcap += dzB;
// Logger.debug("endcap is B");
}
// limit specular glare on endcap
if (intensityEndcap > Graphics3D.intensitySpecularSurfaceLimit)
intensityEndcap = Graphics3D.intensitySpecularSurfaceLimit;
argbEndcap = shadesEndcap[intensityEndcap];
tEndcapOpen = (endcaps == Graphics3D.ENDCAPS_OPEN);
}
private void calcRotatedPoint(float t, int i, boolean isPrecision) {
tRaster[i] = t;
double tPI = t * Math.PI;
double xT = Math.sin(tPI) * cosTheta;
double yT = Math.cos(tPI);
double xR = radius * (xT * cosPhi - yT * sinPhi);
double yR = radius * (xT * sinPhi + yT * cosPhi);
double z2 = radius2 - (xR * xR + yR * yR);
double zR = (z2 > 0 ? Math.sqrt(z2) : 0);
if (isPrecision) {
txRaster[i] = (float) xR;
tyRaster[i] = (float) yR;
tzRaster[i] = (float) zR;
} else if (tEvenDiameter) {
xRaster[i] = (int) (xR - 0.5);
yRaster[i] = (int) (yR - 0.5);
zRaster[i] = (int) (zR + 0.5);
} else {
xRaster[i] = (int) (xR);
yRaster[i] = (int) (yR);
zRaster[i] = (int) (zR + 0.5);
}
fp8IntensityUp[i] = Shade3D.calcFp8Intensity((float) xR, (float) yR, (float) zR);
}
void renderCone(
short colix,
byte endcap,
int diameter,
float xA,
float yA,
float zA,
float xTip,
float yTip,
float zTip) {
if (diameter > (g3d.width + g3d.height) * MAX_FIX) return;
dxBf = (xTip) - (xAf = xA);
dyBf = (yTip) - (yAf = yA);
dzBf = (zTip) - (zAf = zA);
this.xA = (int) Math.floor(xAf);
this.yA = (int) Math.floor(yAf);
this.zA = (int) Math.floor(zAf);
this.dxB = (int) Math.floor(dxBf);
this.dyB = (int) Math.floor(dyBf);
this.dzB = (int) Math.floor(dzBf);
this.xTip = xTip;
this.yTip = yTip;
this.zTip = zTip;
colixA = colix;
shadesA = g3d.getShades(colix);
isScreenedA = (colixA & Graphics3D.TRANSLUCENT_MASK) != 0;
int intensityTip = Shade3D.calcIntensity(dxB, dyB, -dzB);
g3d.plotPixelClipped(shadesA[intensityTip], isScreenedA, (int) xTip, (int) yTip, (int) zTip);
this.diameter = diameter;
if (diameter <= 1) {
if (diameter == 1)
line3d.plotLineDelta(
colixA,
isScreenedA,
colixA,
isScreenedA,
this.xA,
this.yA,
this.zA,
dxB,
dyB,
dzB,
notClipped);
return;
}
// float r2 = dxB*dxB + dyB*dyB + dzB*dzB;
// System.out.println(r2);
this.endcaps = endcap;
calcArgbEndcap(false);
generateBaseEllipsePrecisely();
if (endcaps == Graphics3D.ENDCAPS_FLAT) renderFlatEndcap(false);
for (int i = rasterCount; --i >= 0; ) plotRasterCone(i);
}
public static int[] getShades(short colix) {
int[] shades = ashades[colix];
if (shades == null) shades = ashades[colix] = Shade3D.getShades(argbs[colix]);
return shades;
}