Esenthel
Administrator
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Re: Yellow scene with hpRt(true)?
Hi,
you need to draw in RM_PRT_BLN - alpha blending mode (not palette mode, because in palette the color is taken from the color palette)
please check this code
Code:
/******************************************************************************/
#include "stdafx.h"
/******************************************************************************/
Mesh mbox;
Particles part; // particles
/******************************************************************************/
void InitPre()
{
App.name="Particles";
App.flag=APP_FULL_TOGGLE|APP_MS_EXCLUSIVE;
PakAdd("../data/engine.pak");
D.full(true);
Cam.dist=2;
}
/******************************************************************************/
Bool Init()
{
// create mesh box
mbox.create(1).B(0).create(Box(4),VTX_TX0|VTX_NRM|VTX_TNG).reverse();
mbox.setMaterial(Materials("../data/mtrl/brick/0.mtrl")).setRender().setBox();
// create particles
{
Gfx *gfx =Gfxs("../data/gfx/particle/fire.gfx"); // image
UInt col =WHITE; // color
Int num =30; // number
Flt r =0.1, // radius
life =0; // life
Vec accel(0); // acceleration
Vec point(0); // position
part.createCustom(*gfx,col,num,r,life,accel,point);
part.func=PARTICLE_FULL;
REPA(part)
{
part.p(i).radius=1;
part.p(i).pos=Rnd(Ball(1));
}
}
return true;
}
/******************************************************************************/
void Shut()
{
}
/******************************************************************************/
Bool Main()
{
if(Kb.bp(KB_ESC))return false;
CamHandle(0.01,100,CAMH_ZOOM|(Ms.b(1)?CAMH_MOVE:CAMH_ROT));
// update particles
part.update();
return true;
}
/******************************************************************************/
void Render()
{
switch(Renderer())
{
case RM_SOLID:
mbox.draw(MatrixIdentity);
break;
case RM_LIGHT:
LightPoint(30,Vec(0,3,0)).add();
break;
case RM_PRT_BLN: // alpha blending
part.draw();
break;
}
}
void Draw()
{
Renderer(Render);
}
/******************************************************************************/
I have a question, why don't you want to embed stars on the sky-box ? It would be faster.
Do you want to have animated stars?
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| 02-10-2009 03:16 PM |
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SONB
Member
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Re: Yellow scene with hpRt(true)?
Thanx, Esenthel! Your code works 
Yes, I want animated stars. If I paint them on my skybox, they look too static to me. I know, the real stars don't blink, but the star field looks so much better when the stars fade out and fade in again.
Now here comes another problem: the particles generated with your code don't blink. If I set life to a positive value, they die simultaneously. Ok, I think I could set for each particle a random life value. But more important question is: how can I reborn them again?
I'll try to figure it out myself but if you find a minute for me, it would be great!
Thanx again for your code, at least I can see my goddamn stars again 
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| 02-10-2009 05:24 PM |
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Esenthel
Administrator
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Re: Yellow scene with hpRt(true)?
for blinking I advise to use
func=PARTICLE_LIFE_MAX;
and then manually set Particle::life_max to values 0..1
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| 02-10-2009 05:31 PM |
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SONB
Member
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Re: Yellow scene with hpRt(true)?
Works perfectly, Esenthel
Thanx a lot for your help!
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| 02-10-2009 08:23 PM |
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