fdo-mirrors/plymouth
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/plymouth/plymouth.git synced 2026-05-09 03:38:09 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Update flares on solar plugin to be more airy

Browse source
This commit is contained in:
Charlie Brej 2008-11-11 13:13:00 -05:00 • committed by Ray Strode
parent 3022a696fc
commit 6569d41f72
1 changed files with 19 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
src/plugins/splash/solar/plugin.c
View file

@ -61,8 +61,8 @@
#endif
#define FLARE_FRAMES_PER_SECOND 20
#define FLARE_COUNT 60
#define FLARE_LINE_COUNT 4
#define FLARE_COUNT 30
#define FLARE_LINE_COUNT 20
#define HALO_BLUR 4
/*you can comment one or both of these out*/
@ -530,7 +530,7 @@ flare_reset (flare_t *flare, int index)
flare->rotate_xz[index]=((float)(rand()%1000)/1000)*2*M_PI;
flare->y_size[index]=((float)(rand()%1000)/1000)*0.8+0.2;
flare->increase_speed[index] = ((float)(rand()%1000)/1000)*0.08+0.08;
flare->stretch[index]=((float)(rand()%1000)/1000)*0.1+0.3;
flare->stretch[index]=(((float)(rand()%1000)/1000)*0.1+0.3)*flare->y_size[index];
flare->z_offset_strength[index]=0.1;
}
@ -568,7 +568,7 @@ flare_update (sprite_t* sprite, double time)
int flare_line;
flare->stretch[b] += (flare->stretch[b] * flare->increase_speed[b]) * (1-(1/(3.01-flare->stretch[b])));
flare->increase_speed[b]-=0.003;
flare->z_offset_strength[b]+=0.02;
flare->z_offset_strength[b]+=0.01;
if (flare->stretch[b]>2 || flare->stretch[b]<0.2)
{
@ -579,38 +579,38 @@ flare_update (sprite_t* sprite, double time)
double x, y, z;
double angle, distance;
float theta;
float lift = (flare->stretch[b]-0.5)/flare->stretch[b];
if (lift<0) continue;
lift = 1-lift;
lift *= lift;
lift = sqrt(1-lift);
for (theta =-M_PI_2; theta < M_PI_2; theta+=0.02)
for (theta = -M_PI+(0.05*cos(flare->increase_speed[b]*1000+flare_line)); theta < M_PI; theta+=0.05)
{
int ix;
int iy;
x=(cos(theta))*flare->stretch[b];
y=(sin(theta)+lift)*flare->y_size[b];
z=x*((float)flare_line/FLARE_LINE_COUNT-0.5)*0.2;
x=(cos(theta)+0.5)*flare->stretch[b]*0.8;
y=(sin(theta))*flare->y_size[b];
z=x*(sin(b+flare_line*flare_line))*flare->z_offset_strength[b];
float strength = 1.1-(x/2)+flare->increase_speed[b]*3;
x+=4.5;
if ((x*x+y*y+z*z)<25) continue;
strength = CLAMP(strength, 0, 1);
strength*=255;
strength*=32;
x+=0.05*sin(4*theta*(sin(b+flare_line*5)));
y+=0.05*cos(4*theta*(sin(b+flare_line*5)));
z+=0.05*sin(4*theta*(sin(b+flare_line*5)));
distance = sqrt(x*x+y*y);
angle = atan2 (y, x) + flare->rotate_xy[b];
angle = atan2 (y, x) + flare->rotate_xy[b]+0.02*sin(b*flare_line) ;
x = distance* cos(angle);
y = distance* sin(angle);
distance = sqrt(z*z+y*y);
angle = atan2 (y, z) + flare->rotate_yz[b];
angle = atan2 (y, z) + flare->rotate_yz[b]+0.02*sin(3*b*flare_line);
z = distance* cos(angle);
y = distance* sin(angle);
distance = sqrt(x*x+z*z);
angle = atan2 (z, x) + flare->rotate_xz[b];
angle = atan2 (z, x) + flare->rotate_xz[b]+0.02*sin(8*b*flare_line);
x = distance* cos(angle);
z = distance* sin(angle);
@ -625,7 +625,7 @@ flare_update (sprite_t* sprite, double time)
iy=y;
if (ix>=(width-1) || iy>=(height-1) || ix<=0 || iy<=0) continue;
uint32_t colour = strength;
uint32_t colour = MIN (strength + (old_image_data[ix + iy * width]>>24), 255);
colour <<= 24;
old_image_data[ix + iy * width] = colour;
@ -649,7 +649,7 @@ flare_update (sprite_t* sprite, double time)
value += (old_image_data[(x-1) + (y+1) * width]>>24)*1;
value += (old_image_data[ x + (y+1) * width]>>24)*2;
value += (old_image_data[(x+1) + (y+1) * width]>>24)*1;
value /=20.5;
value /=21;
value = (value<<24) | ((int)(value*0.7)<<16) | (value<<8) | (value<<0);
new_image_data[x +y * width] = value;
}