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POUnexpected results implementing simple motion blur in Libgdx
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  1. POUnexpected results implementing simple motion blur in Libgdx
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    copied!<p>In the two attached pictures, the desktop screenshot of libgdx functions as expected. The screenshot from my Galaxy Nexus is unfortunately not as expected. I am attempting to create a simple motion blur or trail effect.</p> <p>Rendering as I expected on my desktop. <img src="https://i.stack.imgur.com/n2zLU.png" alt="Libgdx running on my desktop, working as expected"></p> <p>Not rendering as I expected on my Galaxy nexus. <img src="https://i.stack.imgur.com/aG4ny.png" alt="Libgdx running on my Galaxy Nexus not working as expected"></p> <p>The circle textures are drawn in a for loop during rendering and the effect is achieved with a pixmap using the RGBA of 0, 0, 0, 0.1f that is drawn before the circles.</p> <p><strong>screenClearSprite creation</strong></p> <pre><code>Pixmap screenClearPixmap = new Pixmap(256, 256, Format.RGBA8888); screenClearPixmap.setColor(Color.rgba8888(0, 0, 0, 0.1f)); screenClearPixmap.fillRectangle(0, 0, 256, 256); screenClearTexture = new Texture(screenClearPixmap); screenClearSprite = new Sprite(screenClearTexture); screenClearSprite.setSize(screenWidth, screenHeight); screenClearPixmap.dispose(); </code></pre> <p><strong>Render</strong></p> <pre><code>batch.begin(); font.draw(batch, "fps:" + Gdx.graphics.getFramesPerSecond(), 0, 20); screenClearSprite.draw(batch); for (int i = 0; i &lt; circleBodies.size(); i++) { tempPos = circleBodies.get(i).getPosition(); batch.draw(circleTexture, (tempPos.x * SCALE) + screenWidthHalf - circleSizeHalf, (tempPos.y * SCALE) + screenHeightHalf - circleSizeHalf); } batch.end(); </code></pre> <p>So, what did I do wrong? Perhaps there is a better way to get the 'motion blur' effect of movement?</p>
 

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