2 files changed, 39 insertions, 2 deletions

diff --git a/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp b/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp
index bf5a597bb9..3065da4d05 100644
--- a/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp
+++ b/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp
@@ -72,6 +72,7 @@ ParticlesStorage::ParticlesStorage() {
 		actions.renames["ACTIVE"] = "particle_active";
 		actions.renames["RESTART"] = "restart";
 		actions.renames["CUSTOM"] = "PARTICLE.custom";
+		actions.renames["AMOUNT_RATIO"] = "FRAME.amount_ratio";
 		for (int i = 0; i < ParticlesShader::MAX_USERDATAS; i++) {
 			String udname = "USERDATA" + itos(i + 1);
 			actions.renames[udname] = "PARTICLE.userdata" + itos(i + 1);
@@ -88,6 +89,8 @@ ParticlesStorage::ParticlesStorage() {
 		actions.renames["INDEX"] = "index";
 		//actions.renames["GRAVITY"] = "current_gravity";
 		actions.renames["EMISSION_TRANSFORM"] = "FRAME.emission_transform";
+		actions.renames["EMITTER_VELOCITY"] = "FRAME.emitter_velocity";
+		actions.renames["INTERPOLATE_TO_END"] = "FRAME.interp_to_end";
 		actions.renames["RANDOM_SEED"] = "FRAME.random_seed";
 		actions.renames["FLAG_EMIT_POSITION"] = "EMISSION_FLAG_HAS_POSITION";
 		actions.renames["FLAG_EMIT_ROT_SCALE"] = "EMISSION_FLAG_HAS_ROTATION_SCALE";
@@ -329,6 +332,13 @@ void ParticlesStorage::particles_set_amount(RID p_particles, int p_amount) {
 	particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_PARTICLES);
 }
 
+void ParticlesStorage::particles_set_amount_ratio(RID p_particles, float p_amount_ratio) {
+	Particles *particles = particles_owner.get_or_null(p_particles);
+	ERR_FAIL_NULL(particles);
+
+	particles->amount_ratio = p_amount_ratio;
+}
+
 void ParticlesStorage::particles_set_lifetime(RID p_particles, double p_lifetime) {
 	Particles *particles = particles_owner.get_or_null(p_particles);
 	ERR_FAIL_NULL(particles);
@@ -651,6 +661,20 @@ void ParticlesStorage::particles_set_emission_transform(RID p_particles, const T
 	particles->emission_transform = p_transform;
 }
 
+void ParticlesStorage::particles_set_emitter_velocity(RID p_particles, const Vector3 &p_velocity) {
+	Particles *particles = particles_owner.get_or_null(p_particles);
+	ERR_FAIL_NULL(particles);
+
+	particles->emitter_velocity = p_velocity;
+}
+
+void ParticlesStorage::particles_set_interp_to_end(RID p_particles, float p_interp) {
+	Particles *particles = particles_owner.get_or_null(p_particles);
+	ERR_FAIL_NULL(particles);
+
+	particles->interp_to_end = p_interp;
+}
+
 int ParticlesStorage::particles_get_draw_passes(RID p_particles) const {
 	const Particles *particles = particles_owner.get_or_null(p_particles);
 	ERR_FAIL_NULL_V(particles, 0);
@@ -791,9 +815,13 @@ void ParticlesStorage::_particles_process(Particles *p_particles, double p_delta
 
 	frame_params.cycle = p_particles->cycle_number;
 	frame_params.frame = p_particles->frame_counter++;
-	frame_params.pad0 = 0;
+	frame_params.amount_ratio = p_particles->amount_ratio;
 	frame_params.pad1 = 0;
 	frame_params.pad2 = 0;
+	frame_params.emitter_velocity[0] = p_particles->emitter_velocity.x;
+	frame_params.emitter_velocity[1] = p_particles->emitter_velocity.y;
+	frame_params.emitter_velocity[2] = p_particles->emitter_velocity.z;
+	frame_params.interp_to_end = p_particles->interp_to_end;
 
 	{ //collision and attractors
 
diff --git a/servers/rendering/renderer_rd/storage_rd/particles_storage.h b/servers/rendering/renderer_rd/storage_rd/particles_storage.h
index b93932f482..435ef14d75 100644
--- a/servers/rendering/renderer_rd/storage_rd/particles_storage.h
+++ b/servers/rendering/renderer_rd/storage_rd/particles_storage.h
@@ -123,7 +123,7 @@ private:
 		float delta;
 
 		uint32_t frame;
-		uint32_t pad0;
+		float amount_ratio;
 		uint32_t pad1;
 		uint32_t pad2;
 
@@ -134,6 +134,9 @@ private:
 
 		float emission_transform[16];
 
+		float emitter_velocity[3];
+		float interp_to_end;
+
 		Attractor attractors[MAX_ATTRACTORS];
 		Collider colliders[MAX_COLLIDERS];
 	};
@@ -235,6 +238,9 @@ private:
 		bool force_sub_emit = false;
 
 		Transform3D emission_transform;
+		Vector3 emitter_velocity;
+		float interp_to_end = 0.0;
+		float amount_ratio = 1.0;
 
 		Vector<uint8_t> emission_buffer_data;
 
@@ -425,6 +431,7 @@ public:
 	virtual void particles_set_mode(RID p_particles, RS::ParticlesMode p_mode) override;
 	virtual void particles_set_emitting(RID p_particles, bool p_emitting) override;
 	virtual void particles_set_amount(RID p_particles, int p_amount) override;
+	virtual void particles_set_amount_ratio(RID p_particles, float p_amount_ratio) override;
 	virtual void particles_set_lifetime(RID p_particles, double p_lifetime) override;
 	virtual void particles_set_one_shot(RID p_particles, bool p_one_shot) override;
 	virtual void particles_set_pre_process_time(RID p_particles, double p_time) override;
@@ -460,6 +467,8 @@ public:
 	virtual AABB particles_get_aabb(RID p_particles) const override;
 
 	virtual void particles_set_emission_transform(RID p_particles, const Transform3D &p_transform) override;
+	virtual void particles_set_emitter_velocity(RID p_particles, const Vector3 &p_velocity) override;
+	virtual void particles_set_interp_to_end(RID p_particles, float p_interp_to_end) override;
 
 	virtual bool particles_get_emitting(RID p_particles) override;
 	virtual int particles_get_draw_passes(RID p_particles) const override;