[1.7.10] 2 weird bugs with particles...

[Elix_x]

Hello, here i will present you 2 weird bugs with particles!

(While describing, i'll present you responsible code parts. Links to full classes are on the bottom of the page...)

1) Wierd velocity...

Using my code, particles should go in random vector around my look, but they do this instead:

Herу main spawning code:

@Override
public void createParticles(EntityLivingBase entity, boolean b){
	if(b){
		if(vectoredAffect(entity)){
			World world = entity.worldObj;
			PositionnedRotatedRangedVec3 vvec = new PositionnedRotatedRangedVec3(entity.worldObj, entity.posX, entity.posY, entity.posZ, entity.rotationYaw, entity.rotationPitch, getDegree(entity), getRange(entity));
			Vec3[] vec2s = vvec.getMainVecs();
			for(int i = 0; i < particleAmount(); i++){
				Vec3 pvec = Vec3Utils.getRandomVecBetween(random, vec2s);
				if(createNameBasedParticles()){
					world.spawnParticle(getParticleName(), entity.posX, entity.posY, entity.posZ, pvec.xCoord, pvec.yCoord, pvec.zCoord);
				} else {
					world.spawnEntityInWorld(new EntityFXBreathingParticles(world, entity.posX, entity.posY, entity.posZ, pvec.xCoord, pvec.yCoord, pvec.zCoord, getR(), getG(), getB(), getA()));
				}
			}
		}
	}
}

It becomes even stranger if i return false on createNameBasedParticles(), which spawns vanilla particles with same velocity values and this... works...

Again, all concerned classes on the bottom of the page.

 

2) Really strange icon...

I'm trying to set particle icon in constructor, to render it with:

public EntityFXBreathingParticles(World world, double posX, double posY, double posZ, double velX, double velY, double velZ, float r, float g, float b, float a) {
	super(world, posX, posY, posZ, velX, velY, velZ);
	setRBGColorF(r, g, b);
	setAlphaF(a);
	setParticleIcon(new IIcon() {

		@Override
		public float getMinV() {
			return 0;
		}

		@Override
		public float getMinU() {
			return 0;
		}

		@Override
		public float getMaxV() {
			return 8;
		}

		@Override
		public float getMaxU() {
			return 8;
		}

		@Override
		public float getInterpolatedV(double p_94207_1_) {
			return 0;
		}

		@Override
		public float getInterpolatedU(double p_94214_1_) {
			return 0;
		}

		@Override
		public int getIconWidth() {
			return 8;
		}

		@Override
		public String getIconName() {
			return BreathModBase.MODID + ":textures/paticles/breath.png";
		}

		@Override
		public int getIconHeight() {
			return 8;
		}
	});
}

This particle icon to be used is in specified location, but my texture is not rendered:

I'm not getting any missing texture errors.

It is not rendered incorrectly.

It is not another flat icon.

IT IS MINI BLOCKS OF SNOW!!!!

No, seriously, where is a logic there? How can flat icon draw blocks of snow in 3D...

 

Ok, here's all the code conserned.

Spawn methods (and methods called from main): https://gist.github.com/elix-x/c4c4ac5799a17bf0e21a

Particles class: https://gist.github.com/elix-x/e1da82ce1f5738362465

PositionnedRotatedRangedVec3.class: https://gist.github.com/elix-x/2795d7b845b11bc9d910

Vec3Utils.class: https://gist.github.com/elix-x/de0de6504fdad2d1849c

SpecialArrayUtils.class: https://gist.github.com/elix-x/4058bf72841d6a9f0f30

AdvancedRandomUtils.class: https://gist.github.com/elix-x/228fa0c176650bd1d958

Hope that's all...

 

Thanks for help!

If you have any questions - just ask!

[SanAndreaP]

1. Your motion vector doesn't get correctly applied to your FX, due to EntityFX's standard motion parameters. What you should do, and what the vanilla SmokeFX does (where it works correctly) is give the super constructor within your particles constructor a value of 0.0 on all three motion axes (X;Y;Z), then manually set the motionX/Y/Z fields within your constructor to the motion parameters.

public Particle(world, x, y, z, velX, velY, velZ, r, g, b, a) {
    super(world, x, y, z, 0.0D, 0.0D, 0.0D);
    this.motionX = velX;
    this.motionY = velY;
    this.motionZ = velZ;
}

 

2. Your IIcon instance does absolutely nothing. Sadly there's no standard implementation of IIcon for particles, so I wrote my own:

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/util/client/IconParticle.java

 

Feel free to use it.

 

And here's an example on how to use it:

https://github.com/SanAndreasP/TurretModRebirth/blob/master/java/de/sanandrew/mods/turretmod/client/particle/ParticleItemTransmitterAction.java#L20

(Please note that I don't bind my texture in renderParticle, since it is rendered in my own particle renderer, so you can ignore this detail)

 

Another problem I see is you try to bind the texture in the renderParticle method, which breaks every particle in existance, since it is now bound to your texture. Re-binding back to the vanilla texture doesn't fix it, it just breaks your particles, because the renderer only uses the last bound texture.

 

What you'd need to do is:

• draw the current Tessellator via

  tesselarator.draw()

  
  

• re-initialize the Tessellator drawing via

  tesselarator.stardDrawingQuads()

  
  

• bind your texture
  
• render your particle
  
• call

  tesselarator.draw()

  again to render your particle
  

• re-initialize the Tessellator drawing again via

  tesselarator.stardDrawingQuads()

  
  

• bind the vanilla texture
  

Please consider this decreases performance and is a VERY HACKY solution, since you draw each particle of yours in a seperate drawing cycle and effectively splitting the default one.

 

This was the reason I made my own FX renderer. You can find the files for those here, if you're interested:

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/mod/client/particle/SAPEffectRenderer.java

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/mod/client/event/EventWorldRenderLast.java

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/util/client/EntityParticle.java

 

EDIT: world.spawnEntityInWorld will render your particles as cubes, since it spawns them as entities (hence the name) and not as particles. The RenderManager doesn't have any rendering info for particles. The correct method to spawn custom particles is

Minecraft.getMinecraft.effectRenderer.addEffect(customParticleInstance)

[Elix_x]

  On 7/1/2015 at 10:09 AM, SanAndreasP said:

1. Your motion vector doesn't get correctly applied to your FX, due to EntityFX's standard motion parameters. What you should do, and what the vanilla SmokeFX does (where it works correctly) is give the super constructor within your particles constructor a value of 0.0 on all three motion axes (X;Y;Z), then manually set the motionX/Y/Z fields within your constructor to the motion parameters.

public Particle(world, x, y, z, velX, velY, velZ, r, g, b, a) {
    super(world, x, y, z, 0.0D, 0.0D, 0.0D);
    this.motionX = velX;
    this.motionY = velY;
    this.motionZ = velZ;
}

 

2. Your IIcon instance does absolutely nothing. Sadly there's no standard implementation of IIcon for particles, so I wrote my own:

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/util/client/IconParticle.java

 

Feel free to use it.

 

And here's an example on how to use it:

https://github.com/SanAndreasP/TurretModRebirth/blob/master/java/de/sanandrew/mods/turretmod/client/particle/ParticleItemTransmitterAction.java#L20

(Please note that I don't bind my texture in renderParticle, since it is rendered in my own particle renderer, so you can ignore this detail)

 

Another problem I see is you try to bind the texture in the renderParticle method, which breaks every particle in existance, since it is now bound to your texture. Re-binding back to the vanilla texture doesn't fix it, it just breaks your particles, because the renderer only uses the last bound texture.

 

What you'd need to do is:

• draw the current Tessellator via

  tesselarator.draw()

  
  

• re-initialize the Tessellator drawing via

  tesselarator.stardDrawingQuads()

  
  

• bind your texture
  
• render your particle
  
• call

  tesselarator.draw()

  again to render your particle
  

• re-initialize the Tessellator drawing again via

  tesselarator.stardDrawingQuads()

  
  

• bind the vanilla texture
  

Please consider this decreases performance and is a VERY HACKY solution, since you draw each particle of yours in a seperate drawing cycle and effectively splitting the default one.

 

This was the reason I made my own FX renderer. You can find the files for those here, if you're interested:

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/mod/client/particle/SAPEffectRenderer.java

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/mod/client/event/EventWorldRenderLast.java

https://github.com/SanAndreasP/SAPManagerPack/blob/master/java/de/sanandrew/core/manpack/util/client/EntityParticle.java

 

EDIT: world.spawnEntityInWorld will render your particles as cubes, since it spawns them as entities (hence the name) and not as particles. The RenderManager doesn't have any rendering info for particles. The correct method to spawn custom particles is

Minecraft.getMinecraft.effectRenderer.addEffect(customParticleInstance)

 

So you mean that to render with custom exture, i have to go with custom rendering?

[SanAndreaP]

  On 7/1/2015 at 11:14 AM, elix said:

So you mean that to render with custom exture, i have to go with custom rendering?

 

To be short, yes.

[Elix_x]

  On 7/1/2015 at 11:25 AM, SanAndreasP said:

  Quote

So you mean that to render with custom exture, i have to go with custom rendering?

 

To be short, yes.

I don't think i need it... After trying this and getting awesome result:

@Override
public void renderParticle(Tessellator tesselator, float f1, float f2, float f3, float f4, float f5, float f6) {
	Minecraft.getMinecraft().getTextureManager().bindTexture(texture);
	renderParticleSpecial(tesselator, f1, f2, f3, f4, f5, f6);
	Minecraft.getMinecraft().getTextureManager().bindTexture(particleTextures);
}

public void renderParticleSpecial(Tessellator tesselator, float ff1, float ff2, float ff3, float ff4, float ff5, float ff6)
{
	float f10 = 0.1F * this.particleScale;

	float f6 = 0;
	float f7 = 8;
	float f8 = 0;
	float f9 = 8;

	float f11 = (float)(this.prevPosX + (this.posX - this.prevPosX) * (double)ff1 - interpPosX);
	float f12 = (float)(this.prevPosY + (this.posY - this.prevPosY) * (double)ff1 - interpPosY);
	float f13 = (float)(this.prevPosZ + (this.posZ - this.prevPosZ) * (double)ff1 - interpPosZ);
	tesselator.setColorRGBA_F(this.particleRed, this.particleGreen, this.particleBlue, this.particleAlpha);
	tesselator.addVertexWithUV((double)(f11 - ff2 * f10 - ff5 * f10), (double)(f12 - ff3 * f10), (double)(f13 - ff4 * f10 - ff6 * f10), (double)f7, (double)f9);
	tesselator.addVertexWithUV((double)(f11 - ff2 * f10 + ff5 * f10), (double)(f12 + ff3 * f10), (double)(f13 - ff4 * f10 + ff6 * f10), (double)f7, (double)f8);
	tesselator.addVertexWithUV((double)(f11 + ff2 * f10 + ff5 * f10), (double)(f12 + ff3 * f10), (double)(f13 + ff4 * f10 + ff6 * f10), (double)f6, (double)f8);
	tesselator.addVertexWithUV((double)(f11 + ff2 * f10 - ff5 * f10), (double)(f12 - ff3 * f10), (double)(f13 + ff4 * f10 - ff6 * f10), (double)f6, (double)f9);
}

 

I think that now all problems are solved!!!