ParticleEmitter cuts the image in half

Troubleshooting effects
1

Hi!

I noticed that my mushroomcloud explosion wasn’t really mushy ingame…

I also noticed its upside down for some reason…

It’s probebly because I set the particle material differently.

But anyways, heres my code:

[java]explosion = new ParticleEmitter(“My explosion effect”, ParticleMesh.Type.Triangle, 1);

explosion.setEndSize(15);

explosion.setStartSize(3);

explosion.setStartColor(ColorRGBA.Red);

explosion.setEndColor(ColorRGBA.Red);

explosion.setHighLife(1);

explosion.setMaterial(MaterialManager.Texture(“Explosion_1.png”));

explosion.setImagesX(16); // columns

explosion.setImagesY(1); // rows

explosion.setSelectRandomImage(false);[/java]

And heres how I get the MaterialManager.Texture:

[java]public static Material getNormal(String name){

Material mat = new Material(MainGame.app.getAsset(),“Common/MatDefs/Misc/Unshaded.j3md”);

mat.setTransparent(true);

mat.getAdditionalRenderState().setBlendMode(BlendMode.Alpha);

mat.getAdditionalRenderState().setFaceCullMode(FaceCullMode.Off);

Texture img = ImageLoader.Load(name);

img.setWrap(WrapMode.Repeat);

img.setMagFilter(Texture.MagFilter.Nearest);

img.setMinFilter(Texture.MinFilter.NearestNearestMipMap);

mat.setTexture(“ColorMap”, img);

return mat;

}[/java]



Do you know why I’m getting half the image AND that half upside down?

2

Way easier to play around with the settings when using the SDK to create the emitter… Anyway, you sure its 16 pictures horizontally?

3

Err, just looking again, you don’t use the particle emitter material…

4

Yea, I tried to explain that…

Thought you could use any material, but you cant?

5

At least you cannot expect all functions to work just like this with another material.

6

Humm… I tried this now:

[java]explosion = new ParticleEmitter("My explosion effect", ParticleMesh.Type.Triangle, 1);

explosion.setEndSize(15);

explosion.setStartSize(3);

explosion.setStartColor(ColorRGBA.Red);

explosion.setEndColor(ColorRGBA.Red);

explosion.setHighLife(1);

Material mat_flash = new Material(MainGame.app.getAsset(), "Common/MatDefs/Misc/Particle.j3md");



Texture img = ImageLoader.Load("Explosion_1.png");

img.setMagFilter(Texture.MagFilter.Nearest);

img.setMinFilter(Texture.MinFilter.NearestNearestMipMap);

mat_flash.setTexture("Texture", img);



explosion.setMaterial(mat_flash); //MaterialManager.Texture("Explosion_1.png"));

explosion.setImagesX(16); // columns

explosion.setImagesY(1); // rows

explosion.setSelectRandomImage(false);[/java]

Problem is, the particle is transparent tho the image is not (except outside the explosion).

Can I set it to only transparent the fully transparent pixels?

I found no such method tho…

7

Particle.j3md sets the blend mode to AlphaAdditive. You could change it but then I predict a future post: “Why are my particles in the back clipping my particles in the front?”



To save time, the particles aren’t z-sorted so they don’t work well with traditional alpha. You have to use a blend mode that works no matter what order the particles are drawn in.