X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-core.git;a=blobdiff_plain;f=dali%2Finternal%2Fupdate%2Frender-tasks%2Fscene-graph-camera.cpp;h=c3dc3c5fd5909c286e7bb4b349c93747d347f100;hp=7aca9cbe66e19b31ca03e167fa37555897ae67aa;hb=b067b6f30c7b8cfdaea9c39f7d2375ccb4e7fa81;hpb=cb9104bc2c206bc1ed868b0a9db18ed6a664a90c diff --git a/dali/internal/update/render-tasks/scene-graph-camera.cpp b/dali/internal/update/render-tasks/scene-graph-camera.cpp index 7aca9cb..c3dc3c5 100644 --- a/dali/internal/update/render-tasks/scene-graph-camera.cpp +++ b/dali/internal/update/render-tasks/scene-graph-camera.cpp @@ -31,6 +31,10 @@ namespace // unnamed namespace { const uint32_t UPDATE_COUNT = 2u; // Update projection or view matrix this many frames after a change const uint32_t COPY_PREVIOUS_MATRIX = 1u; // Copy view or projection matrix from previous frame + +//For reflection and clipping plane +const float REFLECTION_NORMALIZED_DEVICE_COORDINATE_PARAMETER_A = 2.0f; +const float REFLECTION_NORMALIZED_DEVICE_COORDINATE_PARAMETER_D = 1.0f; } namespace Dali @@ -263,6 +267,67 @@ void Camera::SetTargetPosition( const Vector3& targetPosition ) mUpdateViewFlag = UPDATE_COUNT; } +void VectorReflectedByPlane(Vector4 &out, Vector4 &in, Vector4 &plane) +{ + float d = float(2.0) * plane.Dot(in); + out.x = static_cast(in.x - plane.x*d); + out.y = static_cast(in.y - plane.y*d); + out.z = static_cast(in.z - plane.z*d); + out.w = static_cast(in.w - plane.w*d); +} + +void Camera::AdjustNearPlaneForPerspective( Matrix& perspective, const Vector4& clipPlane ) +{ + Vector4 q; + float* v = perspective.AsFloat(); + + q.x = (Sign(clipPlane.x) + v[8]) / v[0]; + q.y = (Sign(clipPlane.y) + v[9]) / v[5]; + q.z = -1.0f; + q.w = (1.0f + v[10]) / v[14]; + + // Calculate the scaled plane vector + Vector4 c = clipPlane * (REFLECTION_NORMALIZED_DEVICE_COORDINATE_PARAMETER_A / q.Dot( clipPlane)); + + // Replace the third row of the projection v + v[2] = c.x; + v[6] = c.y; + v[10] = c.z + REFLECTION_NORMALIZED_DEVICE_COORDINATE_PARAMETER_D; + v[14] = c.w; +} + +void Camera::SetReflectByPlane( const Vector4& plane ) +{ + float* v = mReflectionMtx.AsFloat(); + float _2ab = -2.0f * plane.x * plane.y; + float _2ac = -2.0f * plane.x * plane.z; + float _2bc = -2.0f * plane.y * plane.z; + + v[0] = 1.0f - 2.0f * plane.x * plane.x; + v[1] = _2ab; + v[2] = _2ac; + v[3] = 0.0f; + + v[4] = _2ab; + v[5] = 1.0f - 2.0f * plane.y * plane.y; + v[6] = _2bc; + v[7] = 0.0f; + + v[8] = _2ac; + v[9] = _2bc; + v[10] = 1.0f - 2.0f * plane.z * plane.z; + v[11] = 0.0f; + + v[12] = - 2 * plane.x * plane.w; + v[13] = - 2 * plane.y * plane.w; + v[14] = - 2 * plane.z * plane.w; + v[15] = 1.0f; + + mUseReflection = true; + mReflectionPlane = plane; + mUpdateViewFlag = UPDATE_COUNT; +} + void Camera::RotateProjection( int rotationAngle ) { mProjectionRotation = rotationAngle; @@ -362,11 +427,27 @@ uint32_t Camera::UpdateViewMatrix( BufferIndex updateBufferIndex ) { Matrix& viewMatrix = mViewMatrix.Get( updateBufferIndex ); viewMatrix = mNode->GetWorldMatrix( updateBufferIndex ); + + if (mUseReflection) + { + const Matrix& owningNodeMatrix( mNode->GetWorldMatrix( updateBufferIndex ) ); + Vector3 position{}, scale{}; + Quaternion orientation{}; + owningNodeMatrix.GetTransformComponents( position, orientation, scale ); + mReflectionEye = position; + mUseReflectionClip = true; + + Matrix& viewMatrix = mViewMatrix.Get( updateBufferIndex ); + Matrix oldViewMatrix( viewMatrix ); + Matrix::Multiply(viewMatrix, oldViewMatrix, mReflectionMtx); + } + viewMatrix.Invert(); mViewMatrix.SetDirty( updateBufferIndex ); break; } - // camera orientation constrained to look at a target + + // camera orientation constrained to look at a target case Dali::Camera::LOOK_AT_TARGET: { const Matrix& owningNodeMatrix( mNode->GetWorldMatrix( updateBufferIndex ) ); @@ -374,7 +455,42 @@ uint32_t Camera::UpdateViewMatrix( BufferIndex updateBufferIndex ) Quaternion orientation; owningNodeMatrix.GetTransformComponents( position, orientation, scale ); Matrix& viewMatrix = mViewMatrix.Get( updateBufferIndex ); - LookAt( viewMatrix, position, mTargetPosition, orientation.Rotate( Vector3::YAXIS ) ); + + if (mUseReflection) + { + Vector3 up = orientation.Rotate( Vector3::YAXIS ); + Vector4 position4 = Vector4(position); + Vector4 target4 = Vector4(mTargetPosition); + Vector4 up4 = Vector4(up); + Vector4 positionNew; + Vector4 targetNew; + Vector4 upNew; + Vector3 positionNew3; + Vector3 targetNewVector3; + Vector3 upNew3; + + // eye + VectorReflectedByPlane(positionNew, position4, mReflectionPlane); + VectorReflectedByPlane(targetNew, target4, mReflectionPlane); + VectorReflectedByPlane(upNew, up4, mReflectionPlane); + + positionNew3 = Vector3(positionNew); + targetNewVector3 = Vector3(targetNew); + upNew3 = Vector3(upNew); + LookAt(viewMatrix, positionNew3, targetNewVector3, upNew3 ); + + Matrix oldViewMatrix( viewMatrix ); + Matrix tmp; + tmp.SetIdentityAndScale(Vector3(-1.0, 1.0,1.0)); + Matrix::Multiply(viewMatrix, oldViewMatrix, tmp); + + mReflectionEye = positionNew; + mUseReflectionClip = true; + } + else + { + LookAt( viewMatrix, position, mTargetPosition, orientation.Rotate( Vector3::YAXIS ) ); + } mViewMatrix.SetDirty( updateBufferIndex ); break; } @@ -506,6 +622,32 @@ uint32_t Camera::UpdateProjection( BufferIndex updateBufferIndex ) mNearClippingPlane, mFarClippingPlane, mInvertYAxis ); + + //need to apply custom clipping plane + if (mUseReflectionClip) + { + Matrix& viewMatrix = mViewMatrix.Get( updateBufferIndex ); + Matrix viewInv = viewMatrix; + viewInv.Invert(); + viewInv.Transpose(); + + Dali::Vector4 adjReflectPlane = mReflectionPlane; + float d = mReflectionPlane.Dot(mReflectionEye); + if (d < 0) + { + adjReflectPlane.w = -adjReflectPlane.w; + } + + Vector4 customClipping = viewInv * adjReflectPlane; + AdjustNearPlaneForPerspective(projectionMatrix, customClipping); + + // Invert Z + Matrix matZ; + matZ.SetIdentity(); + float* vZ = matZ.AsFloat(); + vZ[10] = -vZ[10]; + Matrix::Multiply(projectionMatrix, projectionMatrix , matZ); + } break; } case Dali::Camera::ORTHOGRAPHIC_PROJECTION: