void PhysicsServerExample::renderScene()
{
	B3_PROFILE("PhysicsServerExample::RenderScene");
	static char line0[1024];
		static char line1[1024];

	if (gEnableRealTimeSimVR)
	{
		
		static int frameCount=0;
		static btScalar prevTime = m_clock.getTimeSeconds();
		frameCount++;
		
		static btScalar worseFps = 1000000;
		int numFrames = 200;
		static int count = 0;
		count++;

		if (0 == (count & 1))
		{
			btScalar curTime = m_clock.getTimeSeconds();
			btScalar fps = 1. / (curTime - prevTime);
			prevTime = curTime;
			if (fps < worseFps)
			{
				worseFps = fps;
			}

			if (count > numFrames)
			{
				count = 0;
				sprintf(line0, "fps:%f frame:%d", worseFps, frameCount / 2);
				sprintf(line1, "drop:%d tscale:%f dt:%f, substep %f)", gDroppedSimulationSteps, simTimeScalingFactor,gDtInSec, gSubStep);
				gDroppedSimulationSteps = 0;

				worseFps = 1000000;
			}
		}

#ifdef BT_ENABLE_VR
		if ((gInternalSimFlags&2 ) && m_tinyVrGui==0)
		{
			ComboBoxParams comboParams;
        comboParams.m_comboboxId = 0;
        comboParams.m_numItems = 0;
        comboParams.m_startItem = 0;
        comboParams.m_callback = 0;//MyComboBoxCallback;
        comboParams.m_userPointer = 0;//this;
        
			m_tinyVrGui = new TinyVRGui(comboParams,this->m_multiThreadedHelper->m_childGuiHelper->getRenderInterface());
			m_tinyVrGui->init();
		}

		if (m_tinyVrGui)
		{

			b3Transform tr;tr.setIdentity();
			tr.setOrigin(b3MakeVector3(gVRController2Pos[0],gVRController2Pos[1],gVRController2Pos[2]));
			tr.setRotation(b3Quaternion(gVRController2Orn[0],gVRController2Orn[1],gVRController2Orn[2],gVRController2Orn[3]));
			tr = tr*b3Transform(b3Quaternion(0,0,-SIMD_HALF_PI),b3MakeVector3(0,0,0));
			b3Scalar dt = 0.01;
			m_tinyVrGui->clearTextArea();
			
			m_tinyVrGui->grapicalPrintf(line0,0,0,0,0,0,255);
			m_tinyVrGui->grapicalPrintf(line1,0,16,255,255,255,255);

			m_tinyVrGui->tick(dt,tr);
		}
#endif//BT_ENABLE_VR
	}
	///debug rendering
	//m_args[0].m_cs->lock();
	
	//gVRTeleportPos[0] += 0.01;
	vrOffset[12]=-gVRTeleportPos[0];
	vrOffset[13]=-gVRTeleportPos[1];
	vrOffset[14]=-gVRTeleportPos[2];

	this->m_multiThreadedHelper->m_childGuiHelper->getRenderInterface()->
		getActiveCamera()->setVRCameraOffsetTransform(vrOffset);

	m_physicsServer.renderScene();
	
	for (int i=0;i<MAX_VR_CONTROLLERS;i++)
	{
		if (m_args[0].m_isVrControllerPicking[i] || m_args[0].m_isVrControllerDragging[i])
		{
			btVector3 from = m_args[0].m_vrControllerPos[i];
			btMatrix3x3 mat(m_args[0].m_vrControllerOrn[i]);
	
			btVector3 toX = from+mat.getColumn(0);
			btVector3 toY = from+mat.getColumn(1);
			btVector3 toZ = from+mat.getColumn(2);
	
			int width = 2;

	
			btVector4 color;
			color=btVector4(1,0,0,1);
			m_guiHelper->getAppInterface()->m_renderer->drawLine(from,toX,color,width);
			color=btVector4(0,1,0,1);
			m_guiHelper->getAppInterface()->m_renderer->drawLine(from,toY,color,width);
			color=btVector4(0,0,1,1);
			m_guiHelper->getAppInterface()->m_renderer->drawLine(from,toZ,color,width);
	
		}
	}

	if (m_guiHelper->getAppInterface()->m_renderer->getActiveCamera()->isVRCamera())
	{
		gEnableRealTimeSimVR = true;
	}

	if (gDebugRenderToggle)
	if (m_guiHelper->getAppInterface()->m_renderer->getActiveCamera()->isVRCamera())
	{
		
		B3_PROFILE("Draw Debug HUD");
		//some little experiment to add text/HUD to a VR camera (HTC Vive/Oculus Rift)


		float pos[4];
		m_guiHelper->getAppInterface()->m_renderer->getActiveCamera()->getCameraTargetPosition(pos);
		pos[0]+=gVRTeleportPos[0];
		pos[1]+=gVRTeleportPos[1];
		pos[2]+=gVRTeleportPos[2];

		btTransform viewTr;
		btScalar m[16];
		float mf[16];
		m_guiHelper->getAppInterface()->m_renderer->getActiveCamera()->getCameraViewMatrix(mf);
		for (int i=0;i<16;i++)
		{
			m[i] = mf[i];
		}
		m[12]=+gVRTeleportPos[0];
		m[13]=+gVRTeleportPos[1];
		m[14]=+gVRTeleportPos[2];
		viewTr.setFromOpenGLMatrix(m);
		btTransform viewTrInv = viewTr.inverse();
		
		btVector3 side = viewTrInv.getBasis().getColumn(0);
		btVector3 up = viewTrInv.getBasis().getColumn(1);
		btVector3 fwd = viewTrInv.getBasis().getColumn(2);

		
		float upMag = 0;
		float sideMag = 2.2;
		float fwdMag = -4;

		m_guiHelper->getAppInterface()->drawText3D(line0,pos[0]+upMag*up[0]-sideMag*side[0]+fwdMag*fwd[0],pos[1]+upMag*up[1]-sideMag*side[1]+fwdMag*fwd[1],pos[2]+upMag*up[2]-sideMag*side[2]+fwdMag*fwd[2],1);
		//btVector3 fwd = viewTrInv.getBasis().getColumn(2);
		
		up = viewTrInv.getBasis().getColumn(1);
		upMag = -0.3;
		
		
		
		m_guiHelper->getAppInterface()->drawText3D(line1,pos[0]+upMag*up[0]-sideMag*side[0]+fwdMag*fwd[0],pos[1]+upMag*up[1]-sideMag*side[1]+fwdMag*fwd[1],pos[2]+upMag*up[2]-sideMag*side[2]+fwdMag*fwd[2],1);
	}

	//m_args[0].m_cs->unlock();
}
示例#2
0
void PhysicsServerExample::renderScene()
{

#if 0
	///little VR test to follow/drive Husky vehicle
	if (gHuskyId >= 0)
	{
		gVRTeleportPos1 = huskyTr.getOrigin();
		gVRTeleportOrn = huskyTr.getRotation();
	}
#endif
		

	B3_PROFILE("PhysicsServerExample::RenderScene");

	drawUserDebugLines();

	if (gEnableRealTimeSimVR)
	{
		
		static int frameCount=0;
		static btScalar prevTime = m_clock.getTimeSeconds();
		frameCount++;
		
		static btScalar worseFps = 1000000;
		int numFrames = 200;
		static int count = 0;
		count++;

#if 0
		if (0 == (count & 1))
		{
			btScalar curTime = m_clock.getTimeSeconds();
			btScalar fps = 1. / (curTime - prevTime);
			prevTime = curTime;
			if (fps < worseFps)
			{
				worseFps = fps;
			}

			if (count > numFrames)
			{
				count = 0;
				sprintf(line0, "fps:%f frame:%d", worseFps, frameCount / 2);
				sprintf(line1, "drop:%d tscale:%f dt:%f, substep %f)", gDroppedSimulationSteps, simTimeScalingFactor,gDtInSec, gSubStep);
				gDroppedSimulationSteps = 0;

				worseFps = 1000000;
			}
		}
#endif

#ifdef BT_ENABLE_VR
		if ((gInternalSimFlags&2 ) && m_tinyVrGui==0)
		{
			ComboBoxParams comboParams;
        comboParams.m_comboboxId = 0;
        comboParams.m_numItems = 0;
        comboParams.m_startItem = 0;
        comboParams.m_callback = 0;//MyComboBoxCallback;
        comboParams.m_userPointer = 0;//this;
        
			m_tinyVrGui = new TinyVRGui(comboParams,this->m_multiThreadedHelper->m_childGuiHelper->getRenderInterface());
			m_tinyVrGui->init();
		}

		if (m_tinyVrGui)
		{

			b3Transform tr;tr.setIdentity();
			tr.setOrigin(b3MakeVector3(gVRController2Pos[0],gVRController2Pos[1],gVRController2Pos[2]));
			tr.setRotation(b3Quaternion(gVRController2Orn[0],gVRController2Orn[1],gVRController2Orn[2],gVRController2Orn[3]));
			tr = tr*b3Transform(b3Quaternion(0,0,-SIMD_HALF_PI),b3MakeVector3(0,0,0));
			b3Scalar dt = 0.01;
			m_tinyVrGui->clearTextArea();
			static char line0[1024];
			static char line1[1024];

			m_tinyVrGui->grapicalPrintf(line0,0,0,0,0,0,255);
			m_tinyVrGui->grapicalPrintf(line1,0,16,255,255,255,255);

			m_tinyVrGui->tick(dt,tr);
		}
#endif//BT_ENABLE_VR
	}
	///debug rendering
	//m_args[0].m_cs->lock();
	
	//gVRTeleportPos[0] += 0.01;
	btTransform tr2a, tr2;
	tr2a.setIdentity();
	tr2.setIdentity();
	tr2.setOrigin(gVRTeleportPos1);
	tr2a.setRotation(gVRTeleportOrn);
	btTransform trTotal = tr2*tr2a;
	btTransform trInv = trTotal.inverse();

	btMatrix3x3 vrOffsetRot;
	vrOffsetRot.setRotation(trInv.getRotation());
	for (int i = 0; i < 3; i++)
	{
		for (int j = 0; j < 3; j++)
		{
			vrOffset[i + 4 * j] = vrOffsetRot[i][j];
		}
	}

	vrOffset[12]= trInv.getOrigin()[0];
	vrOffset[13]= trInv.getOrigin()[1];
	vrOffset[14]= trInv.getOrigin()[2];

	this->m_multiThreadedHelper->m_childGuiHelper->getRenderInterface()->
		getActiveCamera()->setVRCameraOffsetTransform(vrOffset);

	m_physicsServer.renderScene();
	
	for (int i=0;i<MAX_VR_CONTROLLERS;i++)
	{
		if (m_args[0].m_isVrControllerPicking[i] || m_args[0].m_isVrControllerDragging[i])
		{
			btVector3 from = m_args[0].m_vrControllerPos[i];
			btMatrix3x3 mat(m_args[0].m_vrControllerOrn[i]);
	
			btVector3 toX = from+mat.getColumn(0);
			btVector3 toY = from+mat.getColumn(1);
			btVector3 toZ = from+mat.getColumn(2);
	
			int width = 2;

	
			btVector4 color;
			color=btVector4(1,0,0,1);
			m_guiHelper->getAppInterface()->m_renderer->drawLine(from,toX,color,width);
			color=btVector4(0,1,0,1);
			m_guiHelper->getAppInterface()->m_renderer->drawLine(from,toY,color,width);
			color=btVector4(0,0,1,1);
			m_guiHelper->getAppInterface()->m_renderer->drawLine(from,toZ,color,width);
	
		}
	}

	if (m_guiHelper->getAppInterface()->m_renderer->getActiveCamera()->isVRCamera())
	{
		if (!gEnableRealTimeSimVR)
		{
			gEnableRealTimeSimVR = true;
			m_physicsServer.enableRealTimeSimulation(1);
		}
	}



	//m_args[0].m_cs->unlock();
}