void CBall::Draw(bool bWireFrame)
{
int nIndex = s_bOffscreenRender ? 1 : 0;
if(!dispList_init_flag[nIndex])
{
InitDisplayList();
}
const dReal* pos = dGeomGetPosition(transBall);
const dReal* gpos = dGeomGetPosition(gBall);
const dReal* rot = dGeomGetRotation(transBall);
position[ 0] = rot[0];
position[ 1] = rot[4];
position[ 2] = rot[8];
position[ 3] = rot[3];
position[ 4] = rot[1];
position[ 5] = rot[5];
position[ 6] = rot[9];
position[ 7] = rot[7];
position[ 8] = rot[2];
position[ 9] = rot[6];
position[10] = rot[10];
position[11] = rot[11];
position[12] = pos[0];
position[13] = pos[1];
position[14] = pos[2];
position[15] = 1;
const int log_size = 300;
static int max_log = 0;
static int current_log = 0;
static double pos_log[log_size][16];
if(bWireFrame)
{
glPushMatrix();
glMultMatrixd(position);
glTranslatef(gpos[0], gpos[1], gpos[2]);
material.setMaterial();
glCallList(dispList_wire[nIndex]);
glPopMatrix();
max_log = current_log = 0;
}
else
{
if (!s_bOffscreenRender)
{
static float dif[4] = {0.75,0.4,0.2,0.0};
static float amb[4] = {0.5,0.2,0.1,0.0};
static float spec[4] = {1.0,1.0,1.0,0.0};
if (bDrawTail)
{
glDepthMask(0);
glEnable(GL_BLEND);
glDisable(GL_LIGHTING);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, dif);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, amb);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, spec);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 300);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
for (int i = 0;i < max_log; i++)
{
int j;
if (max_log == log_size)
j = (current_log + i) % log_size;
else
j = i;
glColor4f(0.75,0.4,0.2, 0.5*(double)i / log_size);
glPushMatrix();
glMultMatrixd(pos_log[j]);
glCallList(dispList_polygon[nIndex]);
glPopMatrix();
}
glDisable(GL_BLEND);
glEnable(GL_LIGHTING);
glDepthMask(1);
for (int i = 0;i < 16; i++) pos_log[current_log][i] = position[i];
current_log++;
current_log = current_log % log_size;
if (max_log < log_size)max_log++;
}
else
{
max_log = 0;
current_log = 0;
}
}
glPushMatrix();
glMultMatrixd(position);
material.setMaterial();
glTranslatef(gpos[0], gpos[1], gpos[2]);
glCallList(dispList_polygon[nIndex]);
glPopMatrix();
}
glPushMatrix();
glMultMatrixd(position);
if(bWireFrame)
{
matr_blue.setMaterial();
DrawSphere(0.005);
}
else
{
}
glPopMatrix();
}
