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[particles] Merge physics code

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The particle physics is called by the renderer.
This commit is contained in:
Bill Currie 2021-12-19 13:38:50 +09:00
parent 8d2791752e
commit 372c89b479
6 changed files with 40 additions and 147 deletions
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1
include/r_internal.h
View file

@ -51,6 +51,7 @@ void R_InitEfrags (void);
void R_ClearState (void);
void R_InitSky (struct texture_s *mt); // called at level load
void R_Textures_Init (void);
void R_RunParticles (float dT);
void R_RenderView (void); // must set r_refdef first
void R_ViewChanged (void); // must set r_refdef first
// called whenever r_refdef or vid change

33
libs/video/renderer/gl/gl_dyn_part.c
View file

@ -124,6 +124,8 @@ gl_R_DrawParticles (void)
if (!r_particles->int_val)
return;
R_RunParticles (vr_data.frametime);
qfglBindTexture (GL_TEXTURE_2D, gl_part_tex);
// LordHavoc: particles should not affect zbuffer
qfglDepthMask (GL_FALSE);
@ -135,27 +137,8 @@ gl_R_DrawParticles (void)
vacount = 0;
VA = particleVertexArray;
vec4f_t gravity = {0, 0, -vr_data.gravity, 0};
unsigned j = 0;
for (unsigned i = 0; i < numparticles; i++) {
particle_t *p = &particles[i];
partparm_t *parm = &partparams[i];
if (p->live <= 0 || p->ramp >= parm->ramp_max
|| p->alpha <= 0 || p->scale <= 0) {
continue;
}
const int *ramp = partramps[j];
if (i > j) {
particles[j] = *p;
partparams[j] = *parm;
partramps[j] = ramp;
}
p = &particles[j];
parm = &partparams[j];
j += 1;
// Don't render particles too close to us.
// Note, we must still do physics and such on them.
if (!(DotProduct (p->pos, vpn) < minparticledist)) {
@ -224,19 +207,7 @@ gl_R_DrawParticles (void)
VA = particleVertexArray;
}
}
float dT = vr_data.frametime;
p->pos += dT * p->vel;
p->vel += dT * (p->vel * parm->drag + gravity * parm->drag[3]);
p->ramp += dT * parm->ramp;
p->live -= dT;
p->alpha -= dT * parm->alpha_rate;
p->scale += dT * parm->scale_rate;
if (ramp) {
p->icolor = ramp[(int)p->ramp];
}
}
numparticles = j;
if (vacount) {
if (partUseVA) {

63
libs/video/renderer/glsl/glsl_particles.c
View file

@ -256,27 +256,8 @@ draw_qf_particles (void)
vacount = 0;
VA = particleVertexArray;
vec4f_t gravity = {0, 0, -vr_data.gravity, 0};
unsigned j = 0;
for (unsigned i = 0; i < numparticles; i++) {
particle_t *p = &particles[i];
partparm_t *parm = &partparams[i];
if (p->live <= 0 || p->ramp >= parm->ramp_max
|| p->alpha <= 0 || p->scale <= 0) {
continue;
}
const int *ramp = partramps[j];
if (i > j) {
particles[j] = *p;
partparams[j] = *parm;
partramps[j] = ramp;
}
p = &particles[j];
parm = &partparams[j];
j += 1;
// Don't render particles too close to us.
// Note, we must still do physics and such on them.
if (!(DotProduct (p->pos, vpn) < minparticledist)) {
@ -338,19 +319,7 @@ draw_qf_particles (void)
VA += 4;
vacount += 6;
}
float dT = vr_data.frametime;
p->pos += dT * p->vel;
p->vel += dT * (p->vel * parm->drag + gravity * parm->drag[3]);
p->ramp += dT * parm->ramp;
p->live -= dT;
p->alpha -= dT * parm->alpha_rate;
p->scale += dT * parm->scale_rate;
if (ramp) {
p->icolor = ramp[(int)p->ramp];
}
}
numparticles = j;
qfeglVertexAttribPointer (quake_part.vertex.location, 3, GL_FLOAT,
0, sizeof (partvert_t),
@ -406,27 +375,8 @@ draw_id_particles (void)
vacount = 0;
VA = particleVertexArray;
vec4f_t gravity = {0, 0, -vr_data.gravity, 0};
unsigned j = 0;
for (unsigned i = 0; i < numparticles; i++) {
particle_t *p = &particles[i];
partparm_t *parm = &partparams[i];
if (p->live <= 0 || p->ramp >= parm->ramp_max
|| p->alpha <= 0 || p->scale <= 0) {
continue;
}
const int *ramp = partramps[j];
if (i > j) {
particles[j] = *p;
partparams[j] = *parm;
partramps[j] = ramp;
}
p = &particles[j];
parm = &partparams[j];
j += 1;
// Don't render particles too close to us.
// Note, we must still do physics and such on them.
if (!(DotProduct (p->pos, vpn) < minparticledist)) {
@ -435,19 +385,7 @@ draw_id_particles (void)
VA++;
vacount++;
}
float dT = vr_data.frametime;
p->pos += dT * p->vel;
p->vel += dT * (p->vel * parm->drag + gravity * parm->drag[3]);
p->ramp += dT * parm->ramp;
p->live -= dT;
p->alpha -= dT * parm->alpha_rate;
p->scale += dT * parm->scale_rate;
if (ramp) {
p->icolor = ramp[(int)p->ramp];
}
}
numparticles = j;
qfeglVertexAttribPointer (quake_point.vertex.location, 3, GL_FLOAT,
0, sizeof (partvert_t),
@ -469,6 +407,7 @@ glsl_R_DrawParticles (void)
{
if (!r_particles->int_val || !numparticles)
return;
R_RunParticles (vr_data.frametime);
if (0/*FIXME r_particles_style->int_val*/) {
draw_qf_particles ();
} else {

34
libs/video/renderer/r_part.c
View file

@ -85,3 +85,37 @@ R_ClearParticles (void)
{
numparticles = 0;
}
void
R_RunParticles (float dT)
{
vec4f_t gravity = {0, 0, -vr_data.gravity, 0};
unsigned j = 0;
for (unsigned i = 0; i < numparticles; i++) {
particle_t *p = &particles[i];
partparm_t *parm = &partparams[i];
if (p->live <= 0 || p->ramp >= parm->ramp_max) {
continue;
}
const int *ramp = partramps[j];
if (i > j) {
particles[j] = *p;
partparams[j] = *parm;
partramps[j] = ramp;
}
p = &particles[j];
parm = &partparams[j];
j += 1;
p->pos += dT * p->vel;
p->vel += dT * (p->vel * parm->drag + gravity * parm->drag[3]);
p->ramp += dT * parm->ramp;
p->live -= dT;
if (ramp) {
p->icolor = ramp[(int)p->ramp];
}
}
numparticles = j;
}

28
libs/video/renderer/sw/sw_rpart.c
View file

@ -56,39 +56,13 @@ R_DrawParticles (void)
VectorScale (vup, yscaleshrink, r_pup);
VectorCopy (vpn, r_ppn);
vec4f_t gravity = {0, 0, -vr_data.gravity, 0};
R_RunParticles (vr_data.frametime);
unsigned j = 0;
for (unsigned i = 0; i < numparticles; i++) {
particle_t *p = &particles[i];
partparm_t *parm = &partparams[i];
if (p->live <= 0 || p->ramp >= parm->ramp_max) {
continue;
}
const int *ramp = partramps[j];
if (i > j) {
particles[j] = *p;
partparams[j] = *parm;
partramps[j] = ramp;
}
p = &particles[j];
parm = &partparams[j];
j += 1;
D_DrawParticle (p);
float dT = vr_data.frametime;
p->pos += dT * p->vel;
p->vel += dT * (p->vel * parm->drag + gravity * parm->drag[3]);
p->ramp += dT * parm->ramp;
p->live -= dT;
if (ramp) {
p->icolor = ramp[(int)p->ramp];
}
}
numparticles = j;
}
static void
r_particles_nearclip_f (cvar_t *var)

28
libs/video/renderer/sw32/sw32_rpart.c
View file

@ -59,39 +59,13 @@ sw32_R_DrawParticles (void)
VectorScale (vup, yscaleshrink, r_pup);
VectorCopy (vpn, r_ppn);
vec4f_t gravity = {0, 0, -vr_data.gravity, 0};
R_RunParticles (vr_data.frametime);
unsigned j = 0;
for (unsigned i = 0; i < numparticles; i++) {
particle_t *p = &particles[i];
partparm_t *parm = &partparams[i];
if (p->live <= 0 || p->ramp >= parm->ramp_max) {
continue;
}
const int *ramp = partramps[j];
if (i > j) {
particles[j] = *p;
partparams[j] = *parm;
partramps[j] = ramp;
}
p = &particles[j];
parm = &partparams[j];
j += 1;
sw32_D_DrawParticle (p);
float dT = vr_data.frametime;
p->pos += dT * p->vel;
p->vel += dT * (p->vel * parm->drag + gravity * parm->drag[3]);
p->ramp += dT * parm->ramp;
p->live -= dT;
if (ramp) {
p->icolor = ramp[(int)p->ramp];
}
}
numparticles = j;
}
static void
r_particles_nearclip_f (cvar_t *var)