Unity Line Renderer Get Positions

Next, you’ll want to position and rotate the camera so that it frames the scene correctly. The blades of grass use a random function for size and angle variation, and cast and receive shadows. MecAnim support in Unity 5. This concludes the tutorial about lighting in Unity 5. 線を引いてつなげるには「Positions」の「Element」の座標をいじればいいだけですね。 プログラムからいじるときはこんな感じですね~。 キャラクターのオブジェクトを「char_1」「char_2」 線のオブジェクトを「line」としたとして。. the index here is which point in line the position get set to, so if the index is 0, then it will be the first point of the line. Unfortunately I can't get it working with LineRenderer and my drawline. We're going to render the top of our water using one of Unity's line renderers, and use so many nodes that it appears as a continuous wave. We generate the actual mesh as soon as the object awakens, which happens when when we enter play mode. )Approximately 2 years ago, I delved in to n. path = agent. This approach is very hacky, but you can use the new reflection probes in Unity 5 to easily create realtime reflections for something like a reflective floor. Skip to content. line_renderer. Unity mouse function actually IS a back-end Raycast Coherent UI calculates what you clicked on based on the view texture's x/y coordinates RaycastHit. Author: noodle! Description. Unity supports instancing too and has its own API and set of shader macros to help you. Click ‘show sequencer’. Altitude information is usually very imprecise so, currently, it's best to use heights relative to the device position. Create an child GameObject to above with BoxCollider attached to it. About sending heatmap events. Create a Material and assign it to the LineRenderer. Mouse pointer Mouse pointer is used for interacting with the. However when I build and deploy to hololens it's like the line positions haven't updated and the line isn't drawn where it's meant to be. If you violate the Oculus Code of Conduct, your access to the developer forums may be revoked at the discretion of Oculus staff. Adding the Line Renderer in Unity. Assuming that you've refactored it accordingly and that the script that controls your enemy has access to your draw script, all you need to do to get this to work is to make a call like: DrawNavMeshPath. 3, Shader Graph introduces a new Master Node for the High Definition Render Pipeline (HDRP). It displays fine, it the coordinates for the route line is present at screen creation time, but not if they are added at a later point, so a redraw of the entire map is needed (as a work-around) - but how to do that?. Unfortunately I can't get it working with LineRenderer and my drawline. English Sign in. Unity, however, will call it dozens of times per second. A spline is a curve defined by control. Sounds hectic, but just look at this picture and you'll get it: Create a new script. Magnetic flux densities of the attachment systems were measured with a gaussmeter after immersion to compare with measurements before immersion (α = 0. Adding the Line Renderer in Unity. The example shown here is generated by the XYLineAndShapeRendererDemo2. I have searched in vain for a trail renderer that can detect collisions, so I decided to create one myself! There are definitely things that could be better optimized in this script, but it works just fine in the game I am working on. Note: SRPs (Scriptable Render Pipelines) was released in Unity 2018. Our choice is Line Renderer , this component is able to renderer lines between given positions so we can pass mouse position and let it to render them. The reason we do this is that we render our stars with by using GPU instancing. Create a Material and assign it to the LineRenderer. If a brand-new processor line comes out to market with some amazing new features to be leveraged, Unity can do all of the hard work for you behind the scenes. Set Width. If you build your project following the above described steps you should get the mobile VR inside-out tracking working. line_renderer. For each one, add a "Sprite Renderer" and select the appropriate image (body, eye or mouth). Scenes/ARLocation Place At Locations: Places a prefab in a number of predefined locations. However, with the right settings and a little matrix math, it is possible to get a classic projection without a lot of work. Since the release of Unity 5, Render Texture functionality is available to all Unity users (yes, even in the free version)! You can use this functionality to create some cool effects, and in this tutorial I’ll show you how to create a cool in-game security camera that projects a camera’s view onto a screen. com is now LinkedIn Learning! To access Lynda. A line gets created. I call my previous SeeGameObject function on each object and keep those are in line of sight in an array. But for my project I need both objects moving. Create, launch and operate your game with the leading game development platform for mobile. Maybe you applied textures. This is a simple menu, but the concepts can be easily applied to more complex main menus. This means that we are telling the GPU to get busy with a number of thread groups executing our shader code. So the statement should look like this: gl_Position = mvp * vec4(vertex, 1. When creating enemy AI (Artificial Intelligence) it is often important to specify paths for your enemies. Unfortunately I can't get it working with LineRenderer and my drawline. Don't get me wrong, the layers are surely there, hiding away in the deeper levels of the menu system, but the Unity team started with their core design concepts and stuck with them, which is impressive. The position of this game object marks the center of the LineRenderer, so, position it accordingly. Notice: Undefined index: HTTP_REFERER in /home/forge/carparkinc. Before going into Implementation, I would like to throw some light on the unity terms which we are going to use here. In this session we will give an overview of. In Unity, of random positions along the line and. 2015-09-01. The basic idea is to render all the ripples from an orthographic camera looking down and then re-project that texture onto your water surface. Realtime reflections in Unity 5. Get the scale right from the beginning. Observe the Line Renderer's positions data getting random (and sometimes NaN) values and the console spamming errors (image attached). For this tutorial, I'll be naming it as "Ray Emitter". D Create a script to drive a rigged ribbon model with a SkinnedMeshRenderer. However, with the right settings and a little matrix math, it is possible to get a classic projection without a lot of work. But when it comes to drawing a dotted line, I get all messed up with how can we use it. A rail's geometry is generated by assigning positions and a width to a Unity Line Renderer and positioning it on the map. The goals of this session are to learn how to use the VideoPlayer component and how to write scripts to control it. In this part, as. The Mighty Deep. Our Pac-Man Tutorial will be developed with Unity 5. com courses again, please join LinkedIn Learning. Heatmap events are just like any other custom event, but in order to make heatmap data useful to you, apps that sign up for heatmaps get this limit increased to 5000 events per hour per device. If my two object stay stationary, the line gets draw with no issues. This is a project born from the Easy Curved Line Renderer utility originally created by AcrylicCode and posted on the Work In Progress forum of Unity, then modified by GPV. 0); When expanding regular 3D coordinates to homogeneous coordinates, you need to set the w component to 1. Unity makes it simple to create an object that follows a path. Unity now supports over 20 different target platforms for deploying, while its most popular platforms are the PC, Android and iOS systems. The last obstacle to tackle is how to get the custom projection working with the Unity scene view for WYSIWYG editing. This allows you to get all the ripple information and composite it with your water information, combining height, normal and foam information into one seamless shader. So the statement should look like this: gl_Position = mvp * vec4(vertex, 1. The Unity runtimes now support Unity State machines (MecAnim) in Unity 5. The position of this game object marks the center of the LineRenderer, so, position it accordingly. It is a fairly simple wrapper around the built-in dynamic font system that unity has, and uses strategies similar to the dynamic renderer to render the generated font meshes. Author: noodle! Description. Use a reference object (a Unity cube) to make scale comparisons easy. Using film, television, archival materials, and new media art, this dissertation asks how politically enforced constraints on Black being—especially the origination of racial blackness in slavery and the ongoing availability of Black bodies to. Usually, the application has to set the value of uniform parameters; however, Unity takes care of always setting the correct value of predefined uniform parameters such as unity_ObjectToWorld; thus, we don't have to worry about it. ARCore Device prefab. For my project, the picture below was my rendering result. /// This has many of the advantages of the traditional Line Renderer, old-school system-level line rendering functions, /// and volumetric (a linked series of capsules or cubes) rendering /// . In Unity, of random positions along the line and. Notice: Undefined index: HTTP_REFERER in /home/forge/carparkinc. Notice: Undefined index: HTTP_REFERER in /home/forge/theedmon. The circle needs to have a diameter equal to the line width. the command line option has changed over time, as follows: • Unity 4. The goals of this session are to learn how to use the VideoPlayer component and how to write scripts to control it. The technique is particularly interesting because it is entirely computed in a screen-space shader. In this case, it will get the Player object’s current position and move towards that point. I know this script is the problem because when i uncheck it the app is working fineIs there an alternative way to playback a mic in realtime in unity 2018?Thanks. Check your Unity Project folder, you'll found a folder that you've named on Unity. SetColors (Color. Volumetric light shader. Set the time to get to full length, along with resetting the Line Renderer so that it fades out nicely. Each rail uses a shader similar to the aforementioned energy rail shader modified to work in 3D space and has references to the data in all of the relevant heatmaps. The purpose of a shader in Unity is to provide the graphics card with instructions on how to render a specific pixel on the screen. However, with the right settings and a little matrix math, it is possible to get a classic projection without a lot of work. And it get even more time consuming when I all the time need to render out my scenes even though I only need the models for Unity. So note that looking up the. use a FirstPersonController). This is the fun part, adding a line renderer to the character. Visual Studio for Mac Tools for Unity is. \$\endgroup\$ - Daniel Sep 19 '16 at 14:10 \$\begingroup\$ I've also noticed that the origin of the bone which connects the lower arm to the upper arm rotates how I want but obviously too far away from the barrel. Unity now supports over 20 different target platforms for deploying, while its most popular platforms are the PC, Android and iOS systems. Lets name the project 2DAnimation and make sure you select 2D from the 'Setup defaults for:' drop down. When they do the coordinates are changed (teleported) to the other extreme. ARCore Device prefab. We then use some of the line renderer methods to set the. In order to detect positions on the rocks where the rope should wrap around and add a new vertex position to the line renderer, you'll need a system to determine if a collider vertex point lies in between a. Our Pac-Man Tutorial will be developed with Unity 5. Unity Personal is a great place for beginners and hobbyists to get started. You add scripts to GameObjects just like any other component!. This concludes the tutorial about lighting in Unity 5. The technique is particularly interesting because it is entirely computed in a screen-space shader. Choose a world to Unity units ratio suitable for your game, and stick to it. Notice: Undefined index: HTTP_REFERER in /home/forge/theedmon. This allows you to get all the ripple information and composite it with your water information, combining height, normal and foam information into one seamless shader. For the fragment shader the varying variable contains the interpolated position of the fragment in world coordinates. // A bevel 'nice' join displaces the vertices of the line segment instead of simply rendering a // quad to connect the endpoints. Being a game developer, I use Line Renderer a lot to draw lines with Unity. Normally, the second line on the console will show you the method name, and if you double-click the error, it will take you to that line of code. The units are Unity units. In order to cast shadows in Unity, a second pass must be added to the shader. Unity is a cross-platform game engine initially released by Unity Technologies, in 2005. position + cameraRig. In the last installment of our HoloLens Dev 101 series, we played around with Unity a little as we built a simple application. The Line Renderer does not render one pixel thin lines. 6), this variable has been renamed to LineRenderer. The end goal here is a fully dynamic uniform polygon drawn using a unity line renderer that can adjust it. Correct Answers: C, D, A, B, C. Using positionCount resizes the line renderer position array, but the values get often filled with random or erroneous data. It's been a big year for Maxon. This will automatically generate a new state machine asset. Browse by topic or difficulty. One is the target, and the other is a chase bot. Limitations. INTRODUCTION [Pg i] BY HEYWOOD BROUN A good many of my radical friends express a certain kindly condescension when they speak of Edward Bellamy's "Looking Backward. First of all, we need to think about the logic of shooting a projectile in 3D space. Our mission is to create an online platform capable of sourcing the global market with affordable high quality Architectural Visualizations. Dynamic Geometry Rendering the vertex positions of the shape efficiently and smoothly. When active in the a scene, this prefab will create and initialize an ARCore session and render the background image from a Unity camera that follows the device's position and orientation as estimated by ARCore. Heres my latest render of Shackles Bay, Chuck's home and arena. Adding some perspective to your Unity 2D game. About sending heatmap events. Set the positions of all vertices in the line. That is easy enough to do using the Line Renderer component, however, I wanted to animate the line. The first line samples the depth texture using tex2Dproj and our screen position. You can give that component behaviour, properties, fields, and values. Mouse pointer Mouse pointer is used for interacting with the. Creating a laser aim with Projector and Line Renderer Although using GUI elements, such as a cross-hair, is a valid way to allow players to aim, replacing (or combining) it with a projected laser dot might be a more interesting approach. Unity Camera Preview Different From Gameview. The basic idea behind that method is to use tiny steps to make our way from the initial position where the bullet starts and move our way to the position where it will land, without firing any bullet in Unity's physics engine. In this session we will give an overview of. Choose a world to Unity units ratio suitable for your game, and stick to it. This means that we are telling the GPU to get busy with a number of thread groups executing our shader code. Author: noodle! Description. Scenes/ARLocation Place At Locations: Places a prefab in a number of predefined locations. First let's start by creating enemies. So note that looking up the. It works fine and sets the aspect ratio, but if you put a screenshot line to the very end of the script, it makes a whole screen screenshot from the camera (so in my case it will be a 16:9 aspect ratio picture) instead of taking only the camera's viewable area (which in my case is A4 size 297:210). cgi?chfieldfrom=7d&ctype=atom&query_format=advanced&title=Bugs%20changed%20in%20the%20last%207%20days. I am going to revert my Unity back to. Raymarching Distance Fields: Concepts and Implementation in Unity. const Ptr & mate. Unity simple UI line renderer. One is the target, and the other is a chase bot. Unity Camera Preview Different From Gameview. Line Renderer start position problem Question (self. Manages the ARCore session. Dynamic Geometry Rendering the vertex positions of the shape efficiently and smoothly. You create some points that Unity connects to eachother to create a line and the color is a gradient (can be as simple as 1 or 2 colors). At its simplest, using a real-time engine means your project is 'live' as soon as you start production. This concludes the tutorial about lighting in Unity 5. Make sure to include Android Build Support during installation. To enter your licence key into Unity, follow the instructions below: Load your project in Unity. Use a reference object (a Unity cube) to make scale comparisons easy. Instead if the line renderer hits a UI component, it should end where the UI was hit. Create an empty GameObject with Line Renderer attached to it. Author: noodle! Description. The tip of the sword is in one position on frame 1 and another position frame 2 and the trail renderer draws a segment between those two points: a straight line. Scenes/ARLocation Path Line Render: Using a line-renderer to render a ARLocationPath. Browse by topic or difficulty. Ready to start learning? Treehouse offers a 7 day free trial for new students. In this session we will learn how to create an in-game video player which the player can interact with using first person shooter controls. This is for the Line Renderer's Reference and to set up the positions of the gameObjects private GameObject [] joints; // DONT MESS! This is the actual joint objects that will be automatically created private LineRenderer line; // DONT MESS! The line renderer variable is set up when its assigned as a new component private int segments = 0; // DONT. We are going to continue the space shooter game that we started in the Part 1 of this tutorial. First let's start by creating enemies. To render the line we'll need to: • set a material (appearance of the line) • set a width curve (the width of the line). We don't deal in pixels. methods to display a virtual scene onto a screen, with various approaches and refinements. This still requires that you write your own rendering code instead of using the Unity Line Renderer. Discover the best assets for game making. It will track the path of its parent object and create a fluid arc between its saved points. Unity simple UI line renderer. Make art so that they can all be imported at a scale factor of 1, and that their transforms can be scaled 1, 1, 1. A line gets created. the command line option has changed over time, as follows: • Unity 4. When using Unity 2019, the following Unity packages are required: Multiplayer HLAPI; XR Legacy Input Helper. int pass - Rendering pass. I've been trying to adjust the start position of the line renderer using RotateAround and LookAt, but I can't get it right. " "Of course yo. The data were statistically evaluated with one-way ANOVA, paired-samples t-test, and post hoc Tukey-Kramer multiple comparisons tests (α = 0. This is for the Line Renderer's Reference and to set up the positions of the gameObjects private GameObject [] joints; // DONT MESS! This is the actual joint objects that will be automatically created private LineRenderer line; // DONT MESS! The line renderer variable is set up when its assigned as a new component private int segments = 0; // DONT. So the statement should look like this: gl_Position = mvp * vec4(vertex, 1. The inspector window will show an field for ‘sequence asset’. Next, add a laser beam that extends from the controller. \$\endgroup\$ - Daniel Sep 19 '16 at 14:10 \$\begingroup\$ I've also noticed that the origin of the bone which connects the lower arm to the upper arm rotates how I want but obviously too far away from the barrel. It will constantly pursue the player once it has been alerted. SetColors (Color. We generate the actual mesh as soon as the object awakens, which happens when when we enter play mode. おっすお疲れ様です!(謎テンション ・・・ ・・・・・・ いや、お久しぶりです。 先日とある理由でUnityで線を描画する必要があり いろいろしてたので、備忘録がてら記録しておきます。. , depending on what element you want to control. Yelp is a fun and easy way to find, recommend and talk about what's great and not so great in Walkersville and beyond. Choose a world to Unity units ratio suitable for your game, and stick to it. This will return the depth of the surface behind our water, in a range of 0 to 1. textureCoord is the only way I know to find and send the texture x/y. cs to function properly (e. // A bevel 'nice' join displaces the vertices of the line segment instead of simply rendering a // quad to connect the endpoints. Despite the late Barbadian rally though, Malawi had enough in the locker to get over the line comfortably, by a scoreline of 65-41. For some reason there is apparently no way to get the number of positions in a LineRenderer or to add a new position without keeping track of the line details yourself. In this course, you will learn how to use Unity game engine to design 2D Archery games. Being a game developer, I use Line Renderer a lot to draw lines with Unity. User Guide Your first trail. Unable to get Oculus Spatializer Unity working, Help! Malicore Posts: 35 Oculus Start Member. Solving the Pivot problem in Unity. Then have a separate "master" script that trolls the hierarchy to grab their positions and update the control, or have each control simply report it's position back up to the master script. I am going to revert my Unity back to. Find the best 3D Artist at the click of a button and collaborate online. java program included in the JFreeChart demo collection:. Recent Posts. This was very helpful, but I do have one question, the above code works perfectly when I apply it to an object with sprite rendering in the Unity program, however when I import a 2D map through 'Tiled' the objects turn into Mesh Renderer so when I try to apply the code, it delete's all of the objects, I can't figure it out, any help. Generate grass from an input mesh using a geometry shader, and control the density using tessellation. To do this you need to create new Vector3 array and the length of this array should be the LineRenderer. You create some points that Unity connects to eachother to create a line and the color is a gradient (can be as simple as 1 or 2 colors). Click ‘show sequencer’. " "Of course yo. You will learn how to create both a realistic rope by approximating the rope with springs and a more simplified rope. Create an child GameObject to above with BoxCollider attached to it. Unity Learn provides award-winning free tutorials, sample projects, and full courses for mastering real-time 3D development skills with Unity Learn to make video games, VR, AR, and more. 05 (although you can play around with the width until you find one you like better). This means that we are telling the GPU to get busy with a number of thread groups executing our shader code. centerEyeAnchor. And if you didn't, don't worry about it too much. Get the positions of LineRenderer. So at the top of our class we'll add these variables:. A line gets created. Get the positions of all vertices in the line. In unity, Line Renderer component gives the facility to draw a line as per our requirement. Writing a small software renderer 18/02/2017 - Simon Rodriguez In computer graphics there exist many rendering algorithms, i. WebGLProgram; WebGLShader; WebGLState. The name of the game object doesn't matter, so use any one you like. In order to detect positions on the rocks where the rope should wrap around and add a new vertex position to the line renderer, you'll need a system to determine if a collider vertex point lies in between a. We then use some of the line renderer methods to set the. Our choice is Line Renderer , this component is able to renderer lines between given positions so we can pass mouse position and let it to render them. 0); It's also slightly odd that you. B Create a Line Renderer driven by a script, on a GameObject parented to the projectile. Based on the distance of this position to the origin of the world coordinate system, one of two colors is set. Use a reference object (a Unity cube) to make scale comparisons easy. This will automatically generate a new state machine asset. Render here is used in a broad meaning, we will not directly communicate with the GPU, just get the position of the vertices to be given to the LineRenderer component. Instead if the line renderer hits a UI component, it should end where the UI was hit. The main problem is in your vertex shader: gl_Position = mvp * vec4(vertex, 0. You create some points that Unity connects to eachother to create a line and the color is a gradient (can be as simple as 1 or 2 colors). I have searched in vain for a trail renderer that can detect collisions, so I decided to create one myself! There are definitely things that could be better optimized in this script, but it works just fine in the game I am working on. Still, this isn’t very impressive because now that we can recieve and process the particle system’s input colour, we could get the exact same result by reverting the Start Color to solid white, commenting out the line that interpolates from col to red, and using the Color over Lifetime module to transition from red to blue over the normalized particle lifetime. Choose from our massive catalog of 2D, 3D models, SDKs, templates, and tools to speed up your game development process. In the Hierarchy window, select the Cannon GameObject. Using Unity game engine's features, you can easily design and simulate such games. This concludes the tutorial about lighting in Unity 5. I believe that this is the preferred implementation pattern based on the availability of points in the line renderer component. You can give that component behaviour, properties, fields, and values. Create, launch and operate your game with the leading game development platform for mobile. Project Setup. When they do the coordinates are changed (teleported) to the other extreme. There are some good aspects to Unity, such as the lenses in dash, but overall it is inferior to Gnome 3 shell, in my opinion, and I'd rather see the devs work on other issues and just go with Gnome. Before moving on, it's a good idea to get familiar with how the camera rig works. The main problem is in your vertex shader: gl_Position = mvp * vec4(vertex, 0. If you build your project following the above described steps you should get the mobile VR inside-out tracking working. Before moving on, it’s a good idea to get familiar with how the camera rig works. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. 0f2 and the gearvr app freezes on a frame but headtracking continues to work. Line renderer would require a material, so please add the material we just created to it. Tell Unity where you want to save the project and set the Set up defaults for: menu to 3D. Make sure the box for the line renderer is unchecked. 6 for my gearvr app. A friend once asked me how he could draw a mesh on a line using Unity, or, in other words, create his custom line renderer. int pass - Rendering pass. It's been a big year for Maxon. The end goal here is a fully dynamic uniform polygon drawn using a unity line renderer that can adjust it. Choose from our massive catalog of 2D, 3D models, SDKs, templates, and tools to speed up your game development process. Now here, how to draw physics line like Free Rider game is explained and to accomplish this, we need to add collider to line. Instead if the line renderer hits a UI component, it should end where the UI was hit. the command line option has changed over time, as follows: • Unity 4. Use a reference object (a Unity cube) to make scale comparisons easy. Set the Materials/Element 0 to ControllerLaser. For best results. December 11, 2017 "Unity LayerMask" demystify. Click ‘show sequencer’. What I probably should have described better is that I need multiple lines emanating from single objects (imagine a node network). I want to render a line between two moving objects. ARCore Device prefab. ‘Update’ runs every frame, and is where most of the logic should go. In the Inspector window, click the Add Component button; Type in "Line Renderer" and hit enter or click it to add it. This shader transforms the vertex position to world space and gives it to the fragment shader in a varying. DeviantArt is the world's largest online social community for artists and art enthusiasts, allowing people to connect through the creation and sharing of art. That's it Run your scene and Draw a line on it. I call my previous SeeGameObject function on each object and keep those are in line of sight in an array. About sending heatmap events. The circle needs to have a diameter equal to the line width. This is a simple menu, but the concepts can be easily applied to more complex main menus. Observe the Line Renderer's positions data getting random (and sometimes NaN) values and the console spamming errors (image attached). This is a tutorial on how to create a swinging rope in Unity. This is a project born from the Easy Curved Line Renderer utility originally created by AcrylicCode and posted on the Work In Progress forum of Unity, then modified by GPV. I came across a lot of tutorials online that shows how I can draw a dotted line by using the Line Renderer in Unity, but none of them actually worked (at least for me). I have a question related to this script. This concludes the tutorial about lighting in Unity 5. position = cameraRig. If I get some time this week, I'll try and look in to it. dll into Unity Child Domain. Join GitHub today. Project Setup. 1 or higher. Easy Curved Line Renderer Easy rendering and editing of curved lines in Unity. Using Compute Shaders in Unity, you will be able to render sphe. But when it comes to drawing a dotted line, I get all messed up with how can we use it. We are going to continue the space shooter game that we started in the Part 1 of this tutorial. However when I build and deploy to hololens it's like the line positions haven't updated and the line isn't drawn where it's meant to be. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: