float AppCameraSplinePlaybackWrapper::GetHeadingDegrees() const
{
const Eegeo::m44 view = m_splinePlaybackController.GetCameraState().ViewMatrix();
const Eegeo::v3 forward = Eegeo::v3(view.GetRow(0).z, view.GetRow(1).z, view.GetRow(2).z).Norm();
const float headingRadians = Eegeo::Camera::CameraHelpers::GetAbsoluteBearingRadians(m_splinePlaybackController.GetRenderCamera().GetEcefLocation(), forward);
return Eegeo::Math::Rad2Deg(headingRadians);
}
void AccuracyRingRenderable::RenderSpheres(Eegeo::Rendering::GLState &glState) const
{
glState.BindTexture2D(0);
glState.ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glState.DepthMask(GL_FALSE);
glState.DepthTest.Enable();
glState.DepthFunc(GL_LESS);
glState.CullFace.Disable();
glState.StencilTest.Enable();
glState.StencilFunc(GL_ALWAYS, 1, 0xFF);
glState.StencilOpSeparate(GL_FRONT, GL_KEEP, GL_KEEP, GL_INCR_WRAP);
glState.StencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_DECR_WRAP);
Eegeo::m44 transform;
Eegeo::m44 mvp;
transform.Scale(m_outerRingRadius*2);
transform.SetRow(3, Eegeo::v4(m_cameraRelativePosition, 1.0f));
Eegeo::m44::Mul(mvp, m_viewProjection, transform);
m_sphereRenderable.SetModelViewProjection(mvp);
m_sphereRenderable.Render(glState);
transform.Scale(m_innerRingRadius*2);
transform.SetRow(3, Eegeo::v4(m_cameraRelativePosition, 1.0f));
Eegeo::m44::Mul(mvp, m_viewProjection, transform);
m_sphereRenderable.SetModelViewProjection(mvp);
m_sphereRenderable.Render(glState);
}
Eegeo::m44 ExampleMeshRenderable::CalcModelViewProjection(const Eegeo::dv3& ecefCameraPosition, const Eegeo::m44& viewProjection, const float environmentFlatteningScale) const
{
const Eegeo::dv3& flattenedEcefPosition = m_environmentFlattenTranslate
? Eegeo::Rendering::EnvironmentFlatteningService::GetScaledPointEcef(GetEcefPosition(), environmentFlatteningScale)
: GetEcefPosition();
const Eegeo::v3& cameraRelativeModelOrigin = (flattenedEcefPosition - ecefCameraPosition).ToSingle();
Eegeo::m44 translateRotate;
translateRotate.SetFromBasis(m_orientationEcef.GetRow(0), m_orientationEcef.GetRow(1), m_orientationEcef.GetRow(2), cameraRelativeModelOrigin);
Eegeo::m44 scale;
if (m_environmentFlattenScale)
{
scale.Scale(Eegeo::v3(1.0f, environmentFlatteningScale, 1.0f));
}
else
{
scale.Identity();
}
Eegeo::m44 orientedCameraRelativeModel;
Eegeo::m44::Mul(orientedCameraRelativeModel, translateRotate, scale);
Eegeo::m44 modelViewProjection;
Eegeo::m44::Mul(modelViewProjection, viewProjection, orientedCameraRelativeModel);
return modelViewProjection;
}
void BoundsVisualiser::Draw(const Eegeo::v3& minExtents, const Eegeo::v3& maxExtents)
{
Build(minExtents, maxExtents);
Eegeo_GL(glUseProgram(m_pShader->m_programHandle));
Eegeo::m44 mvp;
Eegeo::m44 w;
w.Identity();
Eegeo::m44::Mul(mvp, renderContext.GetViewProjectionMatrix(), w);
Eegeo_GL(glUniformMatrix4fv(m_pShader->m_mvpUniform, 1, 0, (const GLfloat*)&mvp));
Eegeo_GL(glEnableVertexAttribArray(m_pShader->m_positionSlot));
Eegeo_GL(glBindBuffer(GL_ARRAY_BUFFER, m_glVertexBuffer));
Eegeo_GL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_glIndexBuffer));
Eegeo_GL(glVertexAttribPointer(m_pShader->m_positionSlot, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), 0));
for(u32 j = 0; j < NumIndices; j+=3)
{
Eegeo_GL(glDrawElements(GL_LINE_LOOP, 3, GL_UNSIGNED_SHORT, (void*)(j * 2)));
}
Eegeo_GL(glBindBuffer (GL_ARRAY_BUFFER, 0));
Eegeo_GL(glBindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0));
DestroyGeometry();
}
void LoadModelExample::Update(float dt)
{
//let's put the vehicle in the air
m_interestLocation.SetAltitude(100.0f);
//set some big scale value so we can see the vehicle - vary between x20 and x70
float scale = 20.0f + ((Eegeo::Math::Sin(m_elapsedTime)/ 2.0f + 0.5f) * 50.0f);
Eegeo::m44 scaleMatrix;
scaleMatrix.Scale(scale);
Eegeo::Rendering::SceneModels::SceneModelTransformHelpers::PositionOnEarthSurface(*m_pModel, m_interestLocation, 0.f, scaleMatrix);
// pulse the opacity of the disk material up and down over time.
m_pDiscMaterialResource->GetMaterial()->SetAlpha(std::abs(Eegeo::Math::Sin(m_elapsedTime * 2)));
m_elapsedTime += dt;
}
void PinOverModelExample::MyModelRenderable::Render(Eegeo::Rendering::GLState& glState) const
{
Eegeo::m44 transform;
Eegeo::dv3 location = Eegeo::Space::LatLong::FromDegrees(37.7858,-122.401).ToECEF();
Eegeo::v3 up(location.Norm().ToSingle());
Eegeo::v3 forward = (location - Eegeo::v3(0.f, 1.f, 0.f)).Norm().ToSingle();
Eegeo::v3 right(Eegeo::v3::Cross(up, forward).Norm());
forward = Eegeo::v3::Cross(up, right);
Eegeo::v3 cameraRelativePos = (location - m_renderContext.GetCameraOriginEcef()).ToSingle();
Eegeo::m44 scaleMatrix;
scaleMatrix.Scale(1.f);
Eegeo::m44 cameraRelativeTransform;
cameraRelativeTransform.SetFromBasis(right, up, forward, cameraRelativePos);
Eegeo::m44::Mul(transform, cameraRelativeTransform, scaleMatrix);
transform.SetRow(3, Eegeo::v4(cameraRelativePos, 1.f));
glState.DepthTest.Enable();
glState.DepthFunc(GL_LEQUAL);
//loaded model faces are ccw
glState.FrontFace(GL_CCW);
m_model.GetRootNode()->SetVisible(true);
m_model.GetRootNode()->SetLocalMatrix(transform);
m_model.GetRootNode()->UpdateRecursive();
m_model.GetRootNode()->UpdateSphereRecursive();
m_model.GetRootNode()->DrawRecursive(m_renderContext, m_globalFogging, NULL, true, false);
glState.FrontFace(GL_CW);
Eegeo::EffectHandler::Reset();
}
void PODAnimationExample::Draw()
{
//create basis around a known location off coast of SF
Eegeo::m44 transform;
Eegeo::dv3 location = Eegeo::dv3(4256955.9749164,3907407.6184668,-2700108.75541722);
Eegeo::v3 up(location.Norm().ToSingle());
Eegeo::v3 forward = (location - Eegeo::v3(0.f, 1.f, 0.f)).Norm().ToSingle();
Eegeo::v3 right(Eegeo::v3::Cross(up, forward).Norm());
forward = Eegeo::v3::Cross(up, right);
Eegeo::v3 cameraRelativePos = (location - cameraModel.GetWorldPosition()).ToSingle();
Eegeo::m44 scaleMatrix;
scaleMatrix.Scale(1.f);
Eegeo::m44 cameraRelativeTransform;
cameraRelativeTransform.SetFromBasis(right, up, forward, cameraRelativePos);
Eegeo::m44::Mul(transform, cameraRelativeTransform, scaleMatrix);
transform.SetRow(3, Eegeo::v4(cameraRelativePos, 1.f));
//loaded model faces are ccw
renderContext.GetGLState().FrontFace(GL_CCW);
pModel->GetRootNode()->SetVisible(true);
pModel->GetRootNode()->SetLocalMatrix(transform);
pModel->GetRootNode()->UpdateRecursive();
pModel->GetRootNode()->UpdateSphereRecursive();
pModel->GetRootNode()->DrawRecursive(renderContext, globalFogging, NULL, true, false);
renderContext.GetGLState().FrontFace(GL_CW);
}
void LoadModelExample::Draw()
{
//form basis
Eegeo::v3 up(mesh.up);
Eegeo::v3 forward = -mesh.forward; //model is facing reverse (-ve z)
Eegeo::v3 right(Eegeo::v3::Cross(up, forward).Norm());
up = Eegeo::v3::Cross(forward, right);
//compute a camera local position
Eegeo::v3 cameraRelativePos = (mesh.positionEcef - renderContext.GetCameraOriginEcef()).ToSingle();
//generate a transform from this basis and position...
Eegeo::m44 cameraRelativeTransform;
cameraRelativeTransform.SetFromBasis(right, up, forward, cameraRelativePos);
Eegeo::m44 scaleMatrix;
scaleMatrix.Scale(mesh.scale);
//...and scale
Eegeo::m44 transform;
Eegeo::m44::Mul(transform, cameraRelativeTransform, scaleMatrix);
transform.SetRow(3, Eegeo::v4(cameraRelativePos, 1.0f));
//update the mesh instance with the transform
mesh.node->SetLocalMatrix(transform);
mesh.node->UpdateRecursive();
mesh.node->UpdateSphereRecursive();
mesh.node->UpdateBBRecursive();
// Enable z buffering.
Eegeo::Rendering::GLState& glState = renderContext.GetGLState();
glState.DepthTest.Enable();
glState.DepthFunc(GL_LEQUAL);
glState.DepthMask(GL_TRUE);
//draw the mesh
mesh.node->DrawRecursive(renderContext, globalFogging, NULL, true, true);
Eegeo::v3 min, max;
mesh.node->GetMinExtent(min);
mesh.node->GetMaxExtent(max);
boundsVisualiser.Draw(min, max);
}
