Method drawText3D

examples/OpenGLWindow/SimpleOpenGL3App.cpp:467–627

}

void SimpleOpenGL3App::drawText3D(const char* txt, float position[3], float orientation[4], float color[4], float size, int optionFlag)
{
	B3_PROFILE("SimpleOpenGL3App::drawText3D");
	float viewMat[16];
	float projMat[16];
	CommonCameraInterface* cam = m_instancingRenderer->getActiveCamera();

	cam->getCameraViewMatrix(viewMat);
	cam->getCameraProjectionMatrix(projMat);

	float camPos[4];
	cam->getCameraPosition(camPos);
	//b3Vector3 cp= b3MakeVector3(camPos[0],camPos[2],camPos[1]);
	//b3Vector3 p = b3MakeVector3(worldPosX,worldPosY,worldPosZ);
	//float dist = (cp-p).length();
	//float dv = 0;//dist/1000.f;
	//
	//printf("str = %s\n",unicodeText);

	float dx = 0;

	//int measureOnly=0;

	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	int viewport[4] = {0, 0, m_instancingRenderer->getScreenWidth(), m_instancingRenderer->getScreenHeight()};

	float posX = position[0];
	float posY = position[1];
	float posZ = position[2];
	float winx, winy, winz;

	if (optionFlag & CommonGraphicsApp::eDrawText3D_OrtogonalFaceCamera)
	{
		if (!projectWorldCoordToScreen(position[0], position[1], position[2], viewMat, projMat, viewport, &winx, &winy, &winz))
		{
			return;
		}
		posX = winx;
		posY = m_instancingRenderer->getScreenHeight() / 2 + (m_instancingRenderer->getScreenHeight() / 2) - winy;
		posZ = 0.f;
	}

	if (optionFlag & CommonGraphicsApp::eDrawText3D_TrueType)
	{
		bool measureOnly = false;

		float fontSize = 64;  //512;//128;

		if (optionFlag & CommonGraphicsApp::eDrawText3D_OrtogonalFaceCamera)
		{
			sth_draw_text(m_data->m_fontStash,
						  m_data->m_droidRegular, fontSize, posX, posY,
						  txt, &dx, this->m_instancingRenderer->getScreenWidth(), this->m_instancingRenderer->getScreenHeight(), measureOnly, m_window->getRetinaScale(), color);
			sth_end_draw(m_data->m_fontStash);
			sth_flush_draw(m_data->m_fontStash);
		}
		else