void CkQuadView::render(double alpha,CkView *v_old) {
#ifndef CMK_LIVEVIZ3D_CLIENT
CkAbort("CkQuadView::render should never be called on server!\n");
#else
glEnable(GL_TEXTURE_2D);
CkQuadView *old=(CkQuadView *)v_old; // FIXME: what if he's not a quadview?
if (old==NULL || old->nCorners!=nCorners || alpha>0.99)
{ /* just draw us */
glColor4f(1.0,1.0,1.0,1.0);
render();
}
else
{ /* have old, and need to blend with him. */
#if 0 /* use multitexture: needs to have same corners (which sucks) */
c_tex->bind(); // we're in texture unit 0
glActiveTextureARB(GL_TEXTURE1_ARB);
old->c_tex->bind(); // he's in texture unit 1
glEnable(GL_TEXTURE_2D);
oglTextureCombineLinear(1.0-alpha);
glBegin (nCorners==4?GL_QUADS:GL_TRIANGLE_STRIP);
for (int i=0;i<nCorners;i++) {
glMultiTexCoord2dvARB(GL_TEXTURE0_ARB,texCoord[i]);
glMultiTexCoord2dvARB(GL_TEXTURE1_ARB,old->texCoord[i]);
glVertex3dv(alpha*corners[i]+(1-alpha)*old->corners[i]);
}
glEnd();
glDisable(GL_TEXTURE_2D);
glActiveTextureARB(GL_TEXTURE0_ARB);
#else /* draw two copies: first him, then me. */
double separation=1.3;
float of=smooth(separation*(1-alpha));
glColor4f(of,of,of,of);
old->render();
float nf=smooth(separation*alpha);
glColor4f(nf,nf,nf,nf);
render();
glColor4f(1.0,1.0,1.0,1.0);
#endif
}
if (oglToggles['f'])
{ // Draw a little frame around this texture
glDisable(GL_TEXTURE_2D);
for (int i=0;i<nCorners;i++)
oglLine(corners[i],corners[(i+1)%nCorners]);
glEnable(GL_TEXTURE_2D);
}
#endif
}
void __glXDisp_MultiTexCoord2dvARB(GLbyte *pc)
{
#ifdef __GLX_ALIGN64
if ((unsigned long)(pc) & 7) {
__GLX_MEM_COPY(pc-4, pc, 20);
pc -= 4;
}
#endif
glMultiTexCoord2dvARB(
*(GLenum *)(pc + 16),
(GLdouble *)(pc + 0)
);
}
void __stdcall glMultiTexCoord2dv(GLenum target, const GLdouble *v )
{
if (!ARB_multitexture) return;
glMultiTexCoord2dvARB(target, v);
}