SetEmitterRotationSpeed

[njord]

Hello all,

We create a rain effect in our simulations by moving an area emitter (or a number of area emitters) on the top of the camera. Our particle dds image for rain is a vertical line like this : | . However with the LE version updated to 2.5, rain particles are rotated by a random offset each time I create an emitter , for eg : \ , / , _ instead of | .

I believe the function

void SetEmitterRotationSpeed(TEmitter emitter, flt rotationspeed)

came with the latest LE version along with particle rotation functionality.

 

Setting the rotationspeed parameter to 0 only stops particles from rotating. But particles are still generated with a random rotation (initial) offset.

 

Is there any solution to this problem? Or give me a hint to make realistic rain/snow/hail effect in LE

 

Thanks.

[Von04]

I believe you could open up the particles.vert file that is located in the shaders.pak and change:

 

float angle = rotationoffset + seed + index * 10.0 * rotationspeed;

 

to

 

float angle = 0;

[njord]

I believe you could open up the particles.vert file that is located in the shaders.pak and change:

 

float angle = rotationoffset + seed + index * 10.0 * rotationspeed;

 

to

 

float angle = 0;

 

thanks, i will try that now

[njord]

I tried it now, modifiying particles.vert to my needs solves my problem. Thanks! =)