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Check for disabled particle trail particle before initializing particle trail

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This commit is contained in:
clayjohn 2022-12-22 11:30:59 -07:00
parent c547c4ef59
commit 4d301ee21e
1 changed files with 12 additions and 6 deletions
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18
servers/rendering/renderer_rd/shaders/particles.glsl
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@ -243,8 +243,14 @@ void main() {
if (params.trail_size > 1) { if (params.trail_size > 1) {
if (params.trail_pass) { if (params.trail_pass) {
if (particle >= params.total_particles * (params.trail_size - 1)) {
return;
}
particle += (particle / (params.trail_size - 1)) + 1; particle += (particle / (params.trail_size - 1)) + 1;
} else { } else {
if (particle >= params.total_particles) {
return;
}
particle *= params.trail_size; particle *= params.trail_size;
} }
} }
@ -298,17 +304,17 @@ void main() {
PARTICLE.flags = PARTICLE_FLAG_TRAILED | ((frame_history.data[0].frame & PARTICLE_FRAME_MASK) << PARTICLE_FRAME_SHIFT); //mark it as trailed, save in which frame it will start PARTICLE.flags = PARTICLE_FLAG_TRAILED | ((frame_history.data[0].frame & PARTICLE_FRAME_MASK) << PARTICLE_FRAME_SHIFT); //mark it as trailed, save in which frame it will start
PARTICLE.xform = particles.data[src_idx].xform; PARTICLE.xform = particles.data[src_idx].xform;
} }
if (bool(PARTICLE.flags & PARTICLE_FLAG_TRAILED) && ((PARTICLE.flags >> PARTICLE_FRAME_SHIFT) == (FRAME.frame & PARTICLE_FRAME_MASK))) { //check this is trailed and see if it should start now
// we just assume that this is the first frame of the particle, the rest is deterministic
PARTICLE.flags = PARTICLE_FLAG_ACTIVE | (particles.data[src_idx].flags & (PARTICLE_FRAME_MASK << PARTICLE_FRAME_SHIFT));
return; //- this appears like it should be correct, but it seems not to be.. wonder why.
}
if (!bool(particles.data[src_idx].flags & PARTICLE_FLAG_ACTIVE)) { if (!bool(particles.data[src_idx].flags & PARTICLE_FLAG_ACTIVE)) {
// Disable the entire trail if the parent is no longer active. // Disable the entire trail if the parent is no longer active.
PARTICLE.flags = 0; PARTICLE.flags = 0;
return; return;
} }
if (bool(PARTICLE.flags & PARTICLE_FLAG_TRAILED) && ((PARTICLE.flags >> PARTICLE_FRAME_SHIFT) == (FRAME.frame & PARTICLE_FRAME_MASK))) { //check this is trailed and see if it should start now
// we just assume that this is the first frame of the particle, the rest is deterministic
PARTICLE.flags = PARTICLE_FLAG_ACTIVE | (particles.data[src_idx].flags & (PARTICLE_FRAME_MASK << PARTICLE_FRAME_SHIFT));
return; //- this appears like it should be correct, but it seems not to be.. wonder why.
}
} else { } else {
PARTICLE.flags &= ~PARTICLE_FLAG_STARTED; PARTICLE.flags &= ~PARTICLE_FLAG_STARTED;
} }