New Participant
May 2, 2014
0.3.1 OpenGL Rendering issue
- 3 replies
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I'm trying to use Oculus Rift with our existing OpenSG enviroment . OpenSG is a 3D engine based on OpenGL.
I have created 2 differents FBO viewport, one for each eye, and i have rendered my scene in a single 1280x800 shared texture. (a red background with some planets moving around, just for testing purposes).
I'm trying to apply OVR distortion but this is what i get:
cacca.jpg
This is my how i set up the SDK:
And this is my rending loop:
I have created 2 differents FBO viewport, one for each eye, and i have rendered my scene in a single 1280x800 shared texture. (a red background with some planets moving around, just for testing purposes).
I'm trying to apply OVR distortion but this is what i get:
cacca.jpg
This is my how i set up the SDK:
OculusVR->eyes[0].Eye = ovrEye_Left;
OculusVR->eyes[1].Eye = ovrEye_Right;
OculusVR->eyes[0].Fov = OculusVR->HMDDesc.DefaultEyeFov[0];
OculusVR->eyes[1].Fov = OculusVR->HMDDesc.DefaultEyeFov[1];
OculusVR->eyes[0].TextureSize = RenderTargetSize;
OculusVR->eyes[1].TextureSize = RenderTargetSize;
OculusVR->eyes[0].RenderViewport.Pos = Vector2i(0,0);
OculusVR->eyes[0].RenderViewport.Size = Sizei(RenderTargetSize.w / 2, RenderTargetSize.h);
OculusVR->eyes[1].RenderViewport.Pos = Vector2i((RenderTargetSize.w + 1) / 2, 0);
OculusVR->eyes[1].RenderViewport.Size = OculusVR->eyes[0].RenderViewport.Size;
cfg.OGL.Header.API = ovrRenderAPI_OpenGL;
cfg.OGL.Header.RTSize = Sizei(OculusVR->HMDDesc.Resolution.w, OculusVR->HMDDesc.Resolution.h);
cfg.OGL.Header.Multisample = 1;
HWND windowHandle = FindWindow(NULL,"OpenSG First Application");
cfg.OGL.Window = windowHandle;
cfg.OGL.GdiDc = GetDC(windowHandle);
cfg.OGL.WglContext = wglGetCurrentContext();
EyeTexture[0].OGL.Header.API = ovrRenderAPI_OpenGL;
EyeTexture[0].OGL.Header.TextureSize = RenderTargetSize;
EyeTexture[0].OGL.Header.RenderViewport = OculusVR->eyes[0].RenderViewport;
EyeTexture[0].OGL.TexId = fboTexture->getGLId();
EyeTexture[1]=EyeTexture[0];
EyeTexture[1].OGL.Header.RenderViewport = OculusVR->eyes[1].RenderViewport;
ovrHmd_ConfigureRendering(OculusVR->HMD,&cfg.Config, 0, DistortionCaps, OculusVR->eyes, OculusVR->EyeRenderDesc);
glUseProgramTROIA = (PFNGLUSEPROGRAMPROC)wglGetProcAddress("glUseProgram");
glutMainLoop();
And this is my rending loop:
glUseProgramTROIA(0);
window->activate();
window->frameInit();
window->renderAllViewports(renderAction);
ovrFrameTiming hmdFrameTiming = ovrHmd_BeginFrame(OculusVR->HMD, 0);
Posef movePose = ovrHmd_GetSensorState(OculusVR->HMD, hmdFrameTiming.ScanoutMidpointSeconds).Predicted.Pose;
float HeadPitch, HeadRoll, HeadYaw;
OculusVR->getEyePosition( HeadYaw, HeadPitch, HeadRoll);
for (int eyeIndex = 0; eyeIndex < ovrEye_Count; eyeIndex++)
{
OculusVR->eye = OculusVR->HMDDesc.EyeRenderOrder[eyeIndex];
OculusVR->eyeRenderPose[OculusVR->eye] = ovrHmd_BeginEyeRender(OculusVR->HMD, OculusVR->eye);
OVR::Matrix4f l_ProjectionMatrix = ovrMatrix4f_Projection(OculusVR->EyeRenderDesc[OculusVR->eye].Desc.Fov, 0.3f, 100.0f, true);
OVR::Quatf l_Orientation = OVR::Quatf(OculusVR->eyeRenderPose[OculusVR->eye].Orientation);
OVR::Matrix4f l_ModelViewMatrix = OVR::Matrix4f(l_Orientation.Inverted());
// matrix to OpenGL...
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMultMatrixf(&(l_ProjectionMatrix.Transposed().M[0][0]));
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Translate for specific eye based on IPD...
glTranslatef(OculusVR->EyeRenderDesc[OculusVR->eye].ViewAdjust.x, OculusVR->EyeRenderDesc[OculusVR->eye].ViewAdjust.y,
OculusVR->EyeRenderDesc[OculusVR->eye].ViewAdjust.z);
// Multiply with orientation retrieved from sensor...
glMultMatrixf(&(l_ModelViewMatrix.Transposed().M[0][0]));
ovrHmd_EndEyeRender(OculusVR->HMD, OculusVR->eye, OculusVR->eyeRenderPose[ OculusVR->eye], &EyeTexture[ OculusVR->eye].Texture);
}
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
ovrHmd_EndFrame(OculusVR->HMD);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);