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POOptimising particle effects for slower phones
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  1. POOptimising particle effects for slower phones
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    copied!<p>I'm making a libGDX game that uses particle effects for explosions. This runs quite well on new phones but on older phones (tested on the HTC Desire) when there are more than a few explosions on screen fps lags quite significantly. </p> <p>There are two options I'm currently considering: </p> <ol> <li><p>There are a lot of particles per effect so reducing that count may be an option but I would rather not for consistency and aesthetic reasons. </p></li> <li><p>Using an animation generated from running the particle effect and saving each frame. This would look nice and would be consistent. There may be issues with image size. I also can't see how this can be done with the libGDX particle implementation. </p></li> </ol> <p>Any ideas?</p> <p><strong>EDIT:</strong> Some snippets of the code: After loading the effect in the Assets class:</p> <pre><code>particleFire.load(Gdx.files.internal("explosion.p"),Gdx.files.internal("")); </code></pre> <p>I load the particle effect in the projectile object's constructor. I'm doing this object creation in the main rendering loop which I know is a candidate for optimization.</p> <pre><code> explosion = new ParticleEffect(Assets.particleFire); </code></pre> <p>In the rendering thread this method is called to draw the effects.</p> <pre><code> private void drawBlasts(float delta){ for(Missile projectile : world.missiles){ if (projectile.missileState == State.EXPLODING){ if(projectile.stateTime==0.0f) { projectile.explosion.start(); continue; } projectile.explosion.setPosition(projectile.position.x, projectile.position.y); projectile.explosion.draw(spriteBatcher, delta); } } } </code></pre> <p>A snippet of explosion.p</p> <pre><code>- Delay - active: false - Duration - lowMin: 1000.0 lowMax: 1000.0 - Count - min: 0 max: 100 - Emission - lowMin: 0.0 lowMax: 0.0 highMin: 250.0 highMax: 250.0 relative: false scalingCount: 1 scaling0: 1.0 timelineCount: 1 timeline0: 0.0 - Life - lowMin: 800.0 lowMax: 800.0 highMin: 1000.0 highMax: 1000.0 relative: false scalingCount: 3 scaling0: 1.0 scaling1: 1.0 scaling2: 1.0 timelineCount: 3 timeline0: 0.0 timeline1: 0.66 timeline2: 0.9931507 </code></pre> <p>EDIT 2: These effects are additive so there is a good bit of blending going on too.</p>
 

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