Do not draw particles if they are not processing at all, fixes #19507

5 files changed, 17 insertions, 0 deletions

diff --git a/drivers/dummy/rasterizer_dummy.h b/drivers/dummy/rasterizer_dummy.h
index bd3a36feef..7c095e3798 100644
--- a/drivers/dummy/rasterizer_dummy.h
+++ b/drivers/dummy/rasterizer_dummy.h
@@ -681,6 +681,8 @@ public:
 	int particles_get_draw_passes(RID p_particles) const { return 0; }
 	RID particles_get_draw_pass_mesh(RID p_particles, int p_pass) const { return RID(); }
 
+	virtual bool particles_is_inactive(RID p_particles) const { return false; }
+
 	/* RENDER TARGET */
 
 	RID render_target_create() { return RID(); }
diff --git a/drivers/gles2/rasterizer_storage_gles2.cpp b/drivers/gles2/rasterizer_storage_gles2.cpp
index d646500a23..3beb8eac33 100644
--- a/drivers/gles2/rasterizer_storage_gles2.cpp
+++ b/drivers/gles2/rasterizer_storage_gles2.cpp
@@ -3842,6 +3842,10 @@ RID RasterizerStorageGLES2::particles_get_draw_pass_mesh(RID p_particles, int p_
 void RasterizerStorageGLES2::update_particles() {
 }
 
+bool RasterizerStorageGLES2::particles_is_inactive(RID p_particles) const {
+	return true;
+}
+
 ////////
 
 void RasterizerStorageGLES2::instance_add_skeleton(RID p_skeleton, RasterizerScene::InstanceBase *p_instance) {
diff --git a/drivers/gles2/rasterizer_storage_gles2.h b/drivers/gles2/rasterizer_storage_gles2.h
index 59f911e880..5bdc65a0b5 100644
--- a/drivers/gles2/rasterizer_storage_gles2.h
+++ b/drivers/gles2/rasterizer_storage_gles2.h
@@ -1090,6 +1090,8 @@ public:
 	virtual int particles_get_draw_passes(RID p_particles) const;
 	virtual RID particles_get_draw_pass_mesh(RID p_particles, int p_pass) const;
 
+	virtual bool particles_is_inactive(RID p_particles) const;
+
 	/* INSTANCE */
 
 	virtual void instance_add_skeleton(RID p_skeleton, RasterizerScene::InstanceBase *p_instance);
diff --git a/drivers/gles3/rasterizer_storage_gles3.cpp b/drivers/gles3/rasterizer_storage_gles3.cpp
index 65543956fa..9e0d36f5c8 100644
--- a/drivers/gles3/rasterizer_storage_gles3.cpp
+++ b/drivers/gles3/rasterizer_storage_gles3.cpp
@@ -6455,6 +6455,13 @@ void RasterizerStorageGLES3::update_particles() {
 	glDisable(GL_RASTERIZER_DISCARD);
 }
 
+bool RasterizerStorageGLES3::particles_is_inactive(RID p_particles) const {
+
+	const Particles *particles = particles_owner.getornull(p_particles);
+	ERR_FAIL_COND_V(!particles, false);
+	return !particles->emitting && particles->inactive;
+}
+
 ////////
 
 void RasterizerStorageGLES3::instance_add_skeleton(RID p_skeleton, RasterizerScene::InstanceBase *p_instance) {
diff --git a/drivers/gles3/rasterizer_storage_gles3.h b/drivers/gles3/rasterizer_storage_gles3.h
index 8c843e4d96..398ffdeb82 100644
--- a/drivers/gles3/rasterizer_storage_gles3.h
+++ b/drivers/gles3/rasterizer_storage_gles3.h
@@ -1261,6 +1261,8 @@ public:
 	virtual int particles_get_draw_passes(RID p_particles) const;
 	virtual RID particles_get_draw_pass_mesh(RID p_particles, int p_pass) const;
 
+	virtual bool particles_is_inactive(RID p_particles) const;
+
 	/* INSTANCE */
 
 	virtual void instance_add_skeleton(RID p_skeleton, RasterizerScene::InstanceBase *p_instance);