unity two camera draw 3d over ui
Photographic camera component
Switch to Scripting
Cameras A component which creates an epitome of a particular viewpoint in your scene. The output is either drawn to the screen or captured equally a texture. More info
Come across in Glossary are the devices that capture and brandish the world to the player. By customizing and manipulating cameras, you can make the presentation of your game truly unique. Yous can have an unlimited number of cameras in a scene A Scene contains the environments and menus of your game. Retrieve of each unique Scene file every bit a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info
See in Glossary . They can exist set to render in whatever order, at any place on the screen, or only certain parts of the screen.
Camera Inspector reference
Unity displays dissimilar backdrop in the Photographic camera Inspector A Unity window that displays information nearly the currently selected GameObject, asset or project settings, allowing you to inspect and edit the values. More info
Meet in Glossary depending on the render pipeline that your Project uses.
- If your Projection uses the Universal Render Pipeline (URP), run into the URP package documentation microsite.
- If your Project uses the High Definition Render Pipeline (HDRP), see the HDRP package documentation microsite.
- If your Project uses the Built-in Render Pipeline, Unity displays the following properties:
| Property: | Office: |
|---|---|
| Clear Flags | Determines which parts of the screen will be cleared. This is handy when using multiple Cameras to depict different game elements. |
| Groundwork | The color practical to the remaining screen after all elements in view take been fatigued and there is no skybox A special type of Fabric used to represent skies. Normally six-sided. More info See in Glossary . |
| Culling Mask Allows you lot to include or omit objects to be rendered past a Camera, by Layer. Meet in Glossary | Includes or omits layers of objects to be rendered by the Camera. Assigns layers to your objects in the Inspector. |
| Projection | Toggles the camera'south capability to simulate perspective. |
| Perspective | Camera will render objects with perspective intact. |
| Orthographic | Camera will render objects uniformly, with no sense of perspective. Annotation: Deferred rendering is non supported in Orthographic mode. Frontward rendering A rendering path that renders each object in one or more passes, depending on lights that affect the object. Lights themselves are also treated differently by Forwards Rendering, depending on their settings and intensity. More info See in Glossary is ever used. |
| Size (when Orthographic is selected) | The viewport The user's visible area of an app on their screen. Meet in Glossary size of the Camera when set to Orthographic. |
| FOV Axis (when Perspective is selected) | Field of view axis. |
| Horizontal | The Photographic camera uses a horizontal field of view centrality. |
| Vertical | The Camera uses a vertical field of view centrality. |
| Field of view (when Perspective is selected) | The Camera'due south view angle, measured in degrees along the axis specified in the FOV Centrality drib-down. |
| Physical Camera | Tick this box to enable the Physical Camera properties for this camera. When the Physical Camera properties are enabled, Unity calculates the Field of View using the properties that simulate real-world camera attributes: Focal Length, Sensor Size, and Lens Shift. Physical Camera properties are not visible in the Inspector until you tick this box. |
| Focal Length | Fix the distance, in millimeters, between the photographic camera sensor and the camera lens. Lower values result in a wider Field of View, and vice versa. When you alter this value, Unity automatically updates the Field of View property accordingly. |
| Sensor Type | Specify the real-world camera format y'all desire the camera to simulate. Choose the desired format from the list. When you choose a camera format, Unity sets the the Sensor Size > X and Y properties to the correct values automatically. If you change the Sensor Size values manually, Unity automatically sets this property to Custom. |
| Sensor Size | Prepare the size, in millimeters, of the photographic camera sensor. Unity sets the X and Y values automatically when you choose the Sensor Blazon. You can enter custom values if needed. |
| 10 | The width of the sensor. |
| Y | The acme of the sensor. |
| Lens Shift | Shift the lens horizontally or vertically from eye. Values are multiples of the sensor size; for case, a shift of 0.5 along the X axis offsets the sensor by half its horizontal size. Yous tin can utilise lens shifts to correct distortion that occurs when the camera is at an angle to the subject (for example, converging parallel lines). Shift the lens along either centrality to make the photographic camera frustum oblique. |
| X | The horizontal sensor starting time. |
| Y | The vertical sensor kickoff. |
| Gate Fit | Options for changing the size of the resolution gate (size/aspect ratio of the game view) relative to the flick gate (size/aspect ratio of the Physical Camera sensor). For further data well-nigh resolution gate and film gate, meet documentation on Physical Cameras. |
| Vertical | Fits the resolution gate to the top of the moving-picture show gate. If the sensor aspect ratio is larger than the game view aspect ratio, Unity crops the rendered image at the sides. If the sensor aspect ratio is smaller than the game view attribute ratio, Unity overscans the rendered prototype at the sides. When you choose this setting, changing the sensor width (Sensor Size > Ten belongings) has no outcome on the rendered image. |
| Horizontal | Fits the resolution gate to the width of the motion-picture show gate. If the sensor aspect ratio is larger than the game view aspect ratio, Unity overscans the rendered image on the top and lesser. If the sensor aspect ratio is smaller than the game view attribute ratio, Unity crops the rendered paradigm on the height and bottom. When you choose this setting, changing the sensor height (Sensor Size > Y property) has no result on the rendered prototype. |
| Make full | Fits the resolution gate to either the width or height of the motion picture gate, whichever is smaller. This crops the rendered epitome. |
| Overscan | Fits the resolution gate to either the width or height of the film gate, whichever is larger. This overscans the rendered image. |
| None | Ignores the resolution gate and uses the film gate merely. This stretches the rendered image to fit the game view aspect ratio The relationship of an image's proportional dimensions, such as its width and pinnacle. See in Glossary . |
| Clipping Planes | Distances from the camera to start and stop rendering. |
| Nearly | The closest signal relative to the camera that drawing volition occur. |
| Far | The furthest point relative to the camera that drawing will occur. |
| Viewport Rect | Four values that indicate where on the screen this photographic camera view will be drawn. Measured in Viewport Coordinates (values 0–1). |
| X | The kickoff horizontal position that the camera view volition be drawn. |
| Y | The outset vertical position that the camera view volition exist drawn. |
| W (Width) | Width of the camera output on the screen. |
| H (Height) | Height of the camera output on the screen. |
| Depth | The camera's position in the draw gild. Cameras with a larger value volition be drawn on top of cameras with a smaller value. |
| Rendering Path The technique Unity uses to render graphics. Choosing a different path affects the performance of your game, and how lighting and shading are calculated. Some paths are more than suited to different platforms and hardware than others. More than info See in Glossary | Options for defining what rendering methods will exist used by the camera. |
| Use Thespian Settings | This camera will use whichever Rendering Path is set in the Thespian Settings Settings that let you set various player-specific options for the concluding game built by Unity. More info See in Glossary . |
| Vertex Lit | All objects rendered by this photographic camera will be rendered as Vertex-Lit objects. |
| Forrad | All objects will be rendered with one pass per material. |
| Deferred Lighting | All objects will be drawn one time without lighting, then lighting of all objects volition exist rendered together at the end of the return queue. Note: If the photographic camera's project mode is set to Orthographic, this value is overridden, and the photographic camera will e'er employ Forward rendering. |
| Target Texture | Reference to a Return TextureA special type of Texture that is created and updated at runtime. To use them, beginning create a new Return Texture and designate one of your Cameras to return into it. And then you lot can use the Render Texture in a Material simply like a regular Texture. More info Meet in Glossary that volition contain the output of the Photographic camera view. Setting this reference will disable this Camera'south capability to render to the screen. |
| Occlusion Alternative A feature that disables rendering of objects when they are non currently seen by the camera because they are obscured (occluded) past other objects. More info See in Glossary | Enables Occlusion Culling for this camera. Apoplexy Culling means that objects that are hidden behind other objects are not rendered, for instance if they are behind walls. See Occlusion Culling for details. |
| Allow HDR | Enables Loftier Dynamic Range rendering for this camera. See High Dynamic Range Rendering for details. |
| Allow MSAA | Enables multi sample antialiasing A technique for decreasing artifacts, like jagged lines (jaggies), in images to make them announced smoother. More info Come across in Glossary for this camera. |
| Allow Dynamic Resolution | Enables Dynamic Resolution rendering for this camera. See Dynamic ResolutionA Camera setting that allows yous to dynamically calibration individual render targets, to reduce workload on the GPU. More info See in Glossary for details. |
| Target Display | Defines which external device to return to. Betwixt i and 8. |
Details
Cameras are essential for displaying your game to the player. They can be customized, scripted, or parented to achieve simply about any kind of effect imaginable. For a puzzle game, y'all might continue the Camera static for a full view of the puzzle. For a start-person shooter, you would parent the Photographic camera to the player character, and identify it at the character's eye level. For a racing game, you'd probably have the Photographic camera follow your player'south vehicle.
You can create multiple Cameras and assign each one to a different Depth. Cameras are fatigued from low Depth to high Depth. In other words, a Camera with a Depth of 2 volition be drawn on top of a Photographic camera with a depth of 1. You tin adjust the values of the Normalized View Port Rectangle property to resize and position the Photographic camera'southward view onscreen. This can create multiple mini-views like missile cams, map views, rear-view mirrors, etc.
Render path
Unity supports unlike rendering paths. You should cull which one y'all use depending on your game content and target platform / hardware. Different rendering paths accept unlike features and functioning characteristics that mostly affect lights and shadows. The rendering path used by your Project is chosen in the Player settings. Additionally, you can override it for each Camera.
For more data on rendering paths, check the rendering paths page.
Clear Flags
Each Photographic camera stores color and depth data when it renders its view. The portions of the screen that are not drawn in are empty, and will display the skybox by default. When you are using multiple Cameras, each i stores its own color and depth data in buffers, accumulating more information as each Photographic camera renders. As any particular Camera in your scene renders its view, you can gear up the Articulate Flags to clear different collections of the buffer information. To exercise this, choose one of the following four options:
Skybox
This is the default setting. Any empty portions of the screen will display the current Camera'southward skybox. If the electric current Photographic camera has no skybox set up, it will default to the skybox chosen in the Lighting Window (menu: Window > Rendering The procedure of cartoon graphics to the screen (or to a render texture). Past default, the main camera in Unity renders its view to the screen. More info
Run into in Glossary > Lighting). Information technology will and then fall back to the Background Color. Alternatively a Skybox component can be added to the camera. If you desire to create a new Skybox, you tin employ this guide.
Solid color
Whatever empty portions of the screen volition display the electric current Photographic camera's Background Color.
Depth merely
If you desire to draw a player'south gun without letting it get clipped inside the environment, set i Photographic camera at Depth 0 to draw the environment, and another Photographic camera at Depth ane to draw the weapon alone. Set the weapon Photographic camera'southward Articulate Flags to depth simply. This will go on the graphical brandish of the surroundings on the screen, only discard all information about where each object exists in 3-D space. When the gun is drawn, the opaque parts will completely encompass annihilation drawn, regardless of how close the gun is to the wall.
Don't clear
This mode does not clear either the color or the depth buffer A retention store that holds the z-value depth of each pixel in an image, where the z-value is the depth for each rendered pixel from the projection airplane. More info
See in Glossary . The consequence is that each frame is drawn over the next, resulting in a smear-looking issue. This isn't typically used in games, and would more likely exist used with a custom shader A program that runs on the GPU. More info
See in Glossary .
Note that on some GPUs (mostly mobile GPUs), not clearing the screen might outcome in the contents of it being undefined in the next frame. On some systems, the screen may comprise the previous frame image, a solid blackness screen, or random colored pixels The smallest unit in a computer image. Pixel size depends on your screen resolution. Pixel lighting is calculated at every screen pixel. More info
See in Glossary .
Clip Planes
The About and Far Clip Plane properties determine where the Camera'southward view begins and ends. The planes are laid out perpendicular to the Camera's direction and are measured from its position. The Almost plane is the closest location that will be rendered, and the Far airplane is the furthest.
The clipping planes besides determine how depth buffer precision is distributed over the scene. In general, to get better precision y'all should move the Near airplane as far as possible.
Note that the near and far clip planes together with the planes defined by the field of view of the camera describe what is popularly known as the camera frustum. Unity ensures that when rendering your objects those which are completely outside of this frustum are not displayed. This is called Frustum Culling. Frustum Culling happens irrespective of whether you apply Occlusion Culling in your game.
For performance reasons, yous might desire to cull minor objects earlier. For example, small rocks and debris could be fabricated invisible at much smaller distance than large buildings. To do that, put small-scale objects into a separate layer and ready upward per-layer cull distances using Photographic camera.layerCullDistances script part.
Culling Mask
The Alternative Mask is used for selectively rendering groups of objects using Layers. More information on using layers tin be found here.
Normalized Viewport Rectangles
Normalized Viewport Rectangle is specifically for defining a certain portion of the screen that the electric current camera view will be drawn upon. You can put a map view in the lower-right manus corner of the screen, or a missile-tip view in the upper-left corner. With a bit of pattern piece of work, you can use Viewport Rectangle to create some unique behaviors.
Information technology'southward piece of cake to create a two-player split screen outcome using Normalized Viewport Rectangle. After you have created your two cameras, change both camera's H values to be 0.5 then set thespian 1's Y value to 0.v, and actor two's Y value to 0. This will make player one'south photographic camera display from halfway upwards the screen to the summit, and player 2's camera first at the bottom and end halfway up the screen.
Orthographic
Marking a Camera equally Orthographic removes all perspective from the Photographic camera'due south view. This is mostly useful for making isometric or 2nd games.
Annotation that fog is rendered uniformly in orthographic camera way and may therefore not announced as expected. This is because the Z coordinate of the post-perspective space is used for the fog "depth". This is not strictly accurate for an orthographic camera but it is used for its functioning benefits during rendering.
Return Texture
This will place the camera'south view onto a TextureAn image used when rendering a GameObject, Sprite, or UI chemical element. Textures are often practical to the surface of a mesh to requite it visual detail. More info
See in Glossary that can then be applied to another object. This makes it easy to create sports arena video monitors, surveillance cameras, reflections etc.
Target display
A photographic camera has up to viii target display settings. The photographic camera tin can be controlled to return to one of upward to 8 monitors. This is supported just on PC, Mac and Linux. In Game View the chosen display in the Camera Inspector will be shown.
- 2018–10–05 Page amended
- Physical Photographic camera options added in Unity 2018.ii
- Gate Fit options added in Unity 2018.three
Source: https://docs.unity3d.com/Manual/class-Camera.html
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