| java.lang.Object | |
| ↳ | com.vidinoti.android.vdarsdk.arcore.rendering.BackgroundRenderer |
Class Overview
This class renders the AR background from camera feed. It creates and hosts the texture given to ARCore to be filled with the camera image. See https://github.com/google-ar/arcore-android-sdk/blob/master/samples/hello_ar_java/app/src/main/java/com/google/ar/core/examples/java/common/rendering/BackgroundRenderer.java
Summary
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Allocates and initializes OpenGL resources needed by the background renderer.
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Draws the camera image using the currently configured BackgroundRenderer#quadTexCoords
image texture coordinates.
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Draws the AR background image.
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From class
java.lang.Object
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Public Constructors
Public Methods
public void createOnGlThread (Context context)
Allocates and initializes OpenGL resources needed by the background renderer. Must be called on
the OpenGL thread, typically in onSurfaceCreated(GL10, EGLConfig).
Parameters
| context | Needed to access shader source. |
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Throws
| IOException |
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public void draw (int imageWidth, int imageHeight, float screenAspectRatio, int cameraToDisplayRotation)
Draws the camera image using the currently configured BackgroundRenderer#quadTexCoords image texture coordinates.
The image will be center cropped if the camera sensor aspect ratio does not match the screen aspect ratio, which matches the cropping behavior of Frame#transformCoordinates2d(Coordinates2d, float[], Coordinates2d, float[]).
public void draw (Frame frame)
Draws the AR background image. The image will be drawn such that virtual content rendered with the matrices provided by com.google.ar.core.Camera#getViewMatrix(float[], int) and com.google.ar.core.Camera#getProjectionMatrix(float[], int, float, float) will accurately follow static physical objects. This must be called before drawing virtual content.
Parameters
| frame | The current Frame as returned by Session#update().
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