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void ModelEditorView::updateGizmos()
{
	Face * sel = this->getSelection();
	if(sel == nullptr) {
		for(int i = 0; i < 5; i++) {
			mGizmoPositions[i] = QPoint(-10, -10);
		}
		return;
	}

	glm::vec4 viewport(0, 0, this->width(), this->height());

	glm::vec3 acc;
	for(int i = 0; i < 5; i++)
	{
		glm::vec3 origin;
		if(i < 4) {
			origin = glm::vec3(sel->vertices[i].position);
			acc += 0.25f * origin;
		}
		else {
			origin = acc;
		}

		glm::vec3 pos = glm::project(
		            origin,
		            glm::mat4(),
		            this->matViewProj,
		            viewport);

		// round smartly
		this->mGizmoPositions[i] = QPoint(pos.x, this->height() - pos.y - 1);

		qDebug() << "#" << i << pos << this->mGizmoPositions[i];
	}
}