Particles properly update the shadow maps, closes #8815

2 files changed, 22 insertions, 0 deletions

diff --git a/drivers/gles3/rasterizer_storage_gles3.cpp b/drivers/gles3/rasterizer_storage_gles3.cpp
index 0da9e38769..509b14a22e 100644
--- a/drivers/gles3/rasterizer_storage_gles3.cpp
+++ b/drivers/gles3/rasterizer_storage_gles3.cpp
@@ -5258,6 +5258,23 @@ void RasterizerStorageGLES3::particles_set_emission_transform(RID p_particles, c
 	particles->emission_transform = p_transform;
 }
 
+int RasterizerStorageGLES3::particles_get_draw_passes(RID p_particles) const {
+
+	const Particles *particles = particles_owner.getornull(p_particles);
+	ERR_FAIL_COND_V(!particles, 0);
+
+	return particles->draw_passes.size();
+}
+
+RID RasterizerStorageGLES3::particles_get_draw_pass_mesh(RID p_particles, int p_pass) const {
+
+	const Particles *particles = particles_owner.getornull(p_particles);
+	ERR_FAIL_COND_V(!particles, RID());
+	ERR_FAIL_INDEX_V(p_pass, particles->draw_passes.size(), RID());
+
+	return particles->draw_passes[p_pass];
+}
+
 void RasterizerStorageGLES3::_particles_process(Particles *particles, float p_delta) {
 
 	float new_phase = Math::fmod((float)particles->phase + (p_delta / particles->lifetime) * particles->speed_scale, (float)1.0);
@@ -5452,6 +5469,8 @@ void RasterizerStorageGLES3::update_particles() {
 
 			particles->particle_valid_histories[0] = true;
 		}
+
+		particles->instance_change_notify(); //make sure shadows are updated
 	}
 
 	glDisable(GL_RASTERIZER_DISCARD);
diff --git a/drivers/gles3/rasterizer_storage_gles3.h b/drivers/gles3/rasterizer_storage_gles3.h
index 643554e55d..a53c3d7dd2 100644
--- a/drivers/gles3/rasterizer_storage_gles3.h
+++ b/drivers/gles3/rasterizer_storage_gles3.h
@@ -1149,6 +1149,9 @@ public:
 	virtual void particles_set_emission_transform(RID p_particles, const Transform &p_transform);
 	void _particles_process(Particles *p_particles, float p_delta);
 
+	virtual int particles_get_draw_passes(RID p_particles) const;
+	virtual RID particles_get_draw_pass_mesh(RID p_particles, int p_pass) const;
+
 	/* INSTANCE */
 
 	virtual void instance_add_skeleton(RID p_skeleton, RasterizerScene::InstanceBase *p_instance);