//--------------------------------------------------------------
void ofVboMesh::update(){
if(meshElement->haveVertsChanged()){
setupVertices(drawType);
//vbo.updateVertexData(meshElement->getVerticesPointer(), meshElement->getNumVertices());
}
if(meshElement->haveColorsChanged()){
setupColors(drawType);
//vbo.updateColorData(meshElement->getColorsPointer(), meshElement->getNumColors());
}
if(meshElement->haveNormalsChanged()){
setupNormals(drawType);
//vbo.updateNormalData(meshElement->getNormalsPointer(), meshElement->getNumNormals());
}
if(meshElement->haveTexCoordsChanged()){
setupTexCoords(drawType);
//vbo.updateTexCoordData(meshElement->getTexCoordsPointer(), meshElement->getNumTexCoords());
}
if(meshElement->haveIndicesChanged() && bUseIndices){
setupIndices(drawType);
//vbo.setIndexData(meshElement->getIndexPointer(),meshElement->getNumIndices());
//vbo.updateIndexData(meshElement->getIndexPointer(),meshElement->getNumIndices());
}
}
//--------------------------------------------------------------
void ofVboMesh::draw(polyMode pMode){
if(!vbo.getIsAllocated()){
setupVertices(drawType);
}
if(meshElement->getNumColors() && !vbo.getUsingColors()){
setupColors(drawType);
}
if(meshElement->getNumNormals() && !vbo.getUsingNormals()){
setupNormals(drawType);
}
if(meshElement->getNumTexCoords() && !vbo.getUsingTexCoords()){
setupTexCoords(drawType);
}
if(!meshElement->getNumIndices()){
meshElement->setupIndices();
}
update();
glPushAttrib(GL_POLYGON_BIT);
glPolygonMode(GL_FRONT_AND_BACK, pMode);
GLuint mode = ofGetGLTriangleMode(meshElement->getMode());
if(pMode!=OF_MESH_POINTS){
if(bUseIndices){
cout << meshElement->getNumIndices() << endl;
vbo.drawElements(mode,meshElement->getNumIndices());
}else{
vbo.draw(mode,0,meshElement->getNumVertices());
}
}else{
//no indices needed for just drawing verts as points
vbo.draw(GL_POINTS,0,meshElement->getNumVertices());
}
glPopAttrib();
}
void CF_Slices::render(double t,
uint oldImageID,
uint newImageID)
{
setupTexCoords();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(90.0, 1.0, 0.1, 100.0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
gluLookAt(0.0, 0.0, -1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
glClearColor(0.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glEnable(GL_CULL_FACE);
const int n = 20;
double x = 1.0 - 1.0 / n;
int tex = screenSize.x / n;
for(int i = 0; i < n; i++, x -= 2.0 / n)
{
double angle = clamp((180.0 + (n - 1) * 10.0) * t - i * 10.0, 0.0, 180.0);
glPushMatrix();
glTranslated(x, 0.0, 0.0);
glRotated(angle, 0.0, 1.0, 0.0);
glScaled(1.0 / n, 1.0, 1.0);
// vordere Seite zeichnen
glBindTexture(GL_TEXTURE_2D, oldImageID);
glBegin(GL_QUADS);
double c = 1.0 - angle / 180.0;
glColor4d(c, c, c, 1.0);
glTexCoord2i(i * tex + tex, 0);
glVertex3i(-1, 1, 0);
glTexCoord2i(i * tex, 0);
glVertex3i(1, 1, 0);
glTexCoord2i(i * tex, screenSize.y);
glVertex3i(1, -1, 0);
glTexCoord2i(i * tex + tex, screenSize.y);
glVertex3i(-1, -1, 0);
glEnd();
// hintere Seite zeichnen
glRotated(180.0, 0.0, 1.0, 0.0);
glBindTexture(GL_TEXTURE_2D, newImageID);
glBegin(GL_QUADS);
c = angle / 180.0;
glColor4d(c, c, c, 1.0);
glTexCoord2i(i * tex + tex, 0);
glVertex3i(-1, 1, 0);
glTexCoord2i(i * tex, 0);
glVertex3i(1, 1, 0);
glTexCoord2i(i * tex, screenSize.y);
glVertex3i(1, -1, 0);
glTexCoord2i(i * tex + tex, screenSize.y);
glVertex3i(-1, -1, 0);
glEnd();
glPopMatrix();
}
glDisable(GL_TEXTURE_2D);
glDisable(GL_CULL_FACE);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
