From c4b766e9700ce01d529bb0bd84c2b6218ceccdba Mon Sep 17 00:00:00 2001 From: dec05eba Date: Sun, 3 May 2020 17:28:36 +0200 Subject: Add key to reset rotation of video --- src/main.cpp | 88 +++++++++++++++++++++++++++++------------------------------- 1 file changed, 42 insertions(+), 46 deletions(-) (limited to 'src') diff --git a/src/main.cpp b/src/main.cpp index a31b5a0..0e281e4 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -82,6 +82,7 @@ private: }; static bool g_bPrintf = true; +static const float half_pi = 1.5707963267948f; //----------------------------------------------------------------------------- // Purpose: @@ -174,7 +175,7 @@ private: // OpenGL bookkeeping int m_iTrackedControllerCount_Last; int m_iValidPoseCount; int m_iValidPoseCount_Last; - bool m_bShowCubes; + bool m_bResetRotation; glm::vec2 m_vAnalogValue; std::string m_strPoseClasses; // what classes we saw poses for this frame @@ -215,6 +216,8 @@ private: // OpenGL bookkeeping glm::mat4 m_mat4ProjectionRight; glm::vec3 hmd_pos = glm::vec3(0.0f, 0.0f, 0.0f); + float hmd_rot = 0.0f; + float m_reset_rotation = 0.0f; struct VertexDataScene { @@ -237,7 +240,6 @@ private: // OpenGL bookkeeping GLint m_nSceneMatrixLocation; GLint m_nSceneTextureOffsetXLocation; - GLint m_nScenePositionOffsetLocation; GLint m_nControllerMatrixLocation; GLint m_nRenderModelMatrixLocation; @@ -401,7 +403,6 @@ CMainApplication::CMainApplication( int argc, char *argv[] ) , m_unSceneVAO( 0 ) , m_nSceneMatrixLocation( -1 ) , m_nSceneTextureOffsetXLocation( -1 ) - , m_nScenePositionOffsetLocation( -1 ) , m_nControllerMatrixLocation( -1 ) , m_nRenderModelMatrixLocation( -1 ) , m_iTrackedControllerCount( 0 ) @@ -410,7 +411,7 @@ CMainApplication::CMainApplication( int argc, char *argv[] ) , m_iValidPoseCount_Last( -1 ) , m_iSceneVolumeInit( 10 ) , m_strPoseClasses("") - , m_bShowCubes( true ) + , m_bResetRotation( false ) { for(int i = 1; i < argc; ++i) { if(strcmp(argv[i], "--flat") == 0) { @@ -845,9 +846,9 @@ bool CMainApplication::HandleInput() { bRet = true; } - if( sdlEvent.key.keysym.sym == SDLK_c ) + if( sdlEvent.key.keysym.sym == SDLK_w ) { - m_bShowCubes = !m_bShowCubes; + m_bResetRotation = true; } } } @@ -875,11 +876,12 @@ bool CMainApplication::HandleInput() actionSet.ulActionSet = m_actionsetDemo; vr::VRInput()->UpdateActionState( &actionSet, sizeof(actionSet), 1 ); - m_bShowCubes = !GetDigitalActionState( m_actionHideCubes ); - if(GetDigitalActionState( m_actionHideCubes )) { - //printf("reset position!\n"); + if(GetDigitalActionState( m_actionHideCubes ) || m_bResetRotation) { + printf("reset rotation!\n"); //printf("pos, %f, %f, %f\n", m_mat4HMDPose[0][2], m_mat4HMDPose[1][2], m_mat4HMDPose[2][2]); //m_resetPos = m_mat4HMDPose; + m_bResetRotation = false; + m_reset_rotation = hmd_rot; } vr::VRInputValueHandle_t ulHapticDevice; @@ -1120,7 +1122,6 @@ bool CMainApplication::CreateAllShaders() "#version 410\n" "uniform mat4 matrix;\n" "uniform float texture_offset_x;\n" - "uniform vec3 position_offset;\n" "layout(location = 0) in vec4 position;\n" "layout(location = 1) in vec2 v2UVcoordsIn;\n" "layout(location = 2) in vec3 v3NormalIn;\n" @@ -1129,7 +1130,7 @@ bool CMainApplication::CreateAllShaders() "{\n" " v2UVcoords = vec2(1.0 - v2UVcoordsIn.x, v2UVcoordsIn.y) * vec2(0.5, 1.0) + vec2(texture_offset_x, 0.0);\n" " vec4 inverse_pos = vec4(position.x, position.y, -position.z, position.w);\n" - " gl_Position = matrix * (inverse_pos + vec4(position_offset, 0.0));\n" + " gl_Position = matrix * inverse_pos;\n" "}\n", // Fragment Shader @@ -1155,12 +1156,6 @@ bool CMainApplication::CreateAllShaders() dprintf( "Unable to find texture_offset_x uniform in scene shader\n" ); return false; } - m_nScenePositionOffsetLocation = glGetUniformLocation( m_unSceneProgramID, "position_offset" ); - if( m_nScenePositionOffsetLocation == -1 ) - { - dprintf( "Unable to find position_offset uniform in scene shader\n" ); - return false; - } m_unControllerTransformProgramID = CompileGLShader( "Controller", @@ -1845,33 +1840,28 @@ void CMainApplication::RenderScene( vr::Hmd_Eye nEye ) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnable(GL_DEPTH_TEST); - if( m_bShowCubes ) - { - glUseProgram( m_unSceneProgramID ); - glUniformMatrix4fv( m_nSceneMatrixLocation, 1, GL_FALSE, glm::value_ptr(GetCurrentViewProjectionMatrix( nEye ))); - - if( nEye == vr::Eye_Left ) - { - float offset = 0.0f; - if(view_mode == ViewMode::RIGHT_LEFT) - offset = 0.5f; - glUniform1fv(m_nSceneTextureOffsetXLocation, 1, &offset); - } - else if( nEye == vr::Eye_Right ) - { - float offset = 0.5f; - if(view_mode == ViewMode::RIGHT_LEFT) - offset = 0.0f; - glUniform1fv(m_nSceneTextureOffsetXLocation, 1, &offset); - } - - glUniform3fv(m_nScenePositionOffsetLocation, 1, &hmd_pos[0]); + glUseProgram( m_unSceneProgramID ); + glUniformMatrix4fv( m_nSceneMatrixLocation, 1, GL_FALSE, glm::value_ptr(GetCurrentViewProjectionMatrix( nEye ))); - glBindVertexArray( m_unSceneVAO ); - glBindTexture( GL_TEXTURE_2D, m_iTexture ); - glDrawArrays( GL_TRIANGLES, 0, m_uiVertcount ); - glBindVertexArray( 0 ); + if( nEye == vr::Eye_Left ) + { + float offset = 0.0f; + if(view_mode == ViewMode::RIGHT_LEFT) + offset = 0.5f; + glUniform1fv(m_nSceneTextureOffsetXLocation, 1, &offset); + } + else if( nEye == vr::Eye_Right ) + { + float offset = 0.5f; + if(view_mode == ViewMode::RIGHT_LEFT) + offset = 0.0f; + glUniform1fv(m_nSceneTextureOffsetXLocation, 1, &offset); } + + glBindVertexArray( m_unSceneVAO ); + glBindTexture( GL_TEXTURE_2D, m_iTexture ); + glDrawArrays( GL_TRIANGLES, 0, m_uiVertcount ); + glBindVertexArray( 0 ); #if 0 bool bIsInputAvailable = m_pHMD->IsInputAvailable(); @@ -1985,13 +1975,16 @@ glm::mat4 CMainApplication::GetCurrentViewProjectionMatrix( vr::Hmd_Eye nEye ) //glm::mat4 pp; //memcpy(&pp[0], m_mat4HMDPose.get(), sizeof(m_mat4HMDPose)); //memcpy(&m_mat4HMDPose[0], &pp[0], sizeof(pp)); + glm::mat4 hmd_pose = m_mat4HMDPose; + hmd_pose = glm::translate(hmd_pose, hmd_pos); + hmd_pose = glm::rotate(hmd_pose, m_reset_rotation, glm::vec3(0.0f, 1.0f, 0.0f)); if( nEye == vr::Eye_Left ) { - matMVP = m_mat4ProjectionLeft * m_mat4eyePosLeft * m_mat4HMDPose; + matMVP = m_mat4ProjectionLeft * m_mat4eyePosLeft * hmd_pose; } else if( nEye == vr::Eye_Right ) { - matMVP = m_mat4ProjectionRight * m_mat4eyePosRight * m_mat4HMDPose; + matMVP = m_mat4ProjectionRight * m_mat4eyePosRight * hmd_pose; } return matMVP; @@ -2019,13 +2012,17 @@ void CMainApplication::UpdateHMDMatrixPose() switch (m_pHMD->GetTrackedDeviceClass(nDevice)) { case vr::TrackedDeviceClass_Controller: m_rDevClassChar[nDevice] = 'C'; break; - case vr::TrackedDeviceClass_HMD: + case vr::TrackedDeviceClass_HMD: { //printf("pos: %f, %f, %f\n", m_rTrackedDevicePose[nDevice].mDeviceToAbsoluteTracking.m[0][3], m_rTrackedDevicePose[nDevice].mDeviceToAbsoluteTracking.m[1][3], m_rTrackedDevicePose[nDevice].mDeviceToAbsoluteTracking.m[2][3]); hmd_pos.x = m_rTrackedDevicePose[nDevice].mDeviceToAbsoluteTracking.m[0][3]; hmd_pos.y = m_rTrackedDevicePose[nDevice].mDeviceToAbsoluteTracking.m[1][3]; hmd_pos.z = m_rTrackedDevicePose[nDevice].mDeviceToAbsoluteTracking.m[2][3]; + + glm::vec3 *vec_z = (glm::vec3*)&m_rTrackedDevicePose[nDevice].mDeviceToAbsoluteTracking.m[2]; + hmd_rot = atan2(vec_z->z, vec_z->x) - half_pi; m_rDevClassChar[nDevice] = 'H'; break; + } case vr::TrackedDeviceClass_Invalid: m_rDevClassChar[nDevice] = 'I'; break; case vr::TrackedDeviceClass_GenericTracker: m_rDevClassChar[nDevice] = 'G'; break; case vr::TrackedDeviceClass_TrackingReference: m_rDevClassChar[nDevice] = 'T'; break; @@ -2126,7 +2123,6 @@ glm::mat4 CMainApplication::ConvertSteamVRMatrixToMatrix4( const vr::HmdMatrix34 return matrixObj; } - //----------------------------------------------------------------------------- // Purpose: Create/destroy GL Render Models //----------------------------------------------------------------------------- -- cgit v1.2.3