Generates new speed factor for individual particle. The value is in [0.5:1.5] range @return new speed factor for individual particle.

Resumes the rendering thread, re-creating the OpenGL context if necessary. It is the counterpart to {@link #onPause()}. <p> This method should typical

Applies background. Supported Drawables are {@link BitmapDrawable}, and {@link ColorDrawable} since API Level 11. <p> The background will stretch to f

Set the rendering mode. When renderMode is RENDERMODE_CONTINUOUSLY, the renderer is called repeatedly to re-render the scene. When renderMode is RENDE

Start animating. This will clear the explicit control flag if set by {@link #stop()}. Note that if this View's visibility is not {@link #VISIBLE} or i

Create a GL object for the current EGL context.

Create an egl surface for the current SurfaceHolder surface. If a surface already exists, destroy it before creating the new surface. @return true if

{@inheritDoc}

@return true if the EGL context will be preserved when paused

Get the current rendering mode. May be called from any thread. Must not be called before a renderer has been set. @return the current rendering mode.

{@inheritDoc}

Overrides background dimensions with the specified ones. This change will be reset by next call to {@link #setDimensions(int, int)}.

Resolves line alpha based on distance comparing to max distance. Where alpha is close to 0 for maxDistance, and close to 1 to 0 distance. @param dist

Install a custom EGLConfigChooser. <p>If this method is called, it must be called before {@link #setRenderer(Renderer)} is called. <p> If no setEGLCon

Inform the default EGLContextFactory and default EGLConfigChooser which EGLContext client version to pick. <p>Use this method to create an OpenGL ES 2

Set the renderer associated with this view. Also starts the thread that will call the renderer, which in turn causes the rendering to start. <p>This m

Start animating. This will clear the explicit control flag if set by {@link #stop()}. Note that if this View's visibility is not {@link #VISIBLE} or i

Explicilty stop animating. This will stop animating and no animations will start automatically until you call {@link #start()}.

Display the current render surface. @return the EGL error code from eglSwapBuffers.

@param glError the error read from glGetError. @param tag custom tag to include in exception message.

Standard View constructor. In order to render something, you must call {@link #setRenderer} to register a renderer.