Method handlePicking

Source/RenderPasses/SDFEditor/SDFEditor.cpp:1176–1208

}

bool SDFEditor::handlePicking(const float2& currentMousePos, float3& localPos)
{
    if (!mpScene)
        return false;

    // Create picking ray.
    float3 rayOrigin = mpCamera->getPosition();

    const CameraData& cameraData = mpCamera->getData();
    float2 ndc = float2(-1.0f, 1.0f) + float2(2.0f, -2.0f) * (currentMousePos + float2(0.5f, 0.5f)) / float2(mFrameDim);
    float3 rayDir = normalize(ndc.x * cameraData.cameraU + ndc.y * cameraData.cameraV + cameraData.cameraW);

    float3 iSectPosition;
    if (mUI2D.gridPlane.active) // Grid is on, so we pick on the grid.
    {
        float t = mUI2D.gridPlane.intersect(rayOrigin, rayDir);
        iSectPosition = rayOrigin + rayDir * t;
    }
    else if (mAllowEditingOnOtherSurfaces || mPickingInfo.instanceID == mCurrentEdit.instanceID)
    {
        iSectPosition = rayOrigin + rayDir * mPickingInfo.distance;
    }
    else
    {
        return false;
    }

    const GeometryInstanceData& instance = mpScene->getGeometryInstance(mCurrentEdit.instanceID);
    const AnimationController* pAnimationController = mpScene->getAnimationController();
    const float4x4& invTransposeInstanceTransform = pAnimationController->getInvTransposeGlobalMatrices()[instance.globalMatrixID];
    localPos = transformPoint(transpose(invTransposeInstanceTransform), iSectPosition);
    return true;
}

void SDFEditor::execute(RenderContext* pRenderContext, const RenderData& renderData)
{