From 38cba80068306e2d3d8957bd9f6586b9ce006329 Mon Sep 17 00:00:00 2001
From: lucidrains <lucidrains@gmail.com>
Date: Tue, 4 Nov 2025 06:05:11 -0800
Subject: [PATCH] readme

---
 README.md | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 685729a..5b608a9 100644
--- a/README.md
+++ b/README.md
@@ -28,9 +28,16 @@ tokenizer = VideoTokenizer(
     image_width = 256
 )
 
+video = torch.randn(2, 3, 10, 256, 256)
+
+# learn the tokenizer
+
+loss = tokenizer(video)
+loss.backward() # ler
+
 # dynamics world model
 
-dynamics = DynamicsWorldModel(
+world_model = DynamicsWorldModel(
     dim = 512,
     dim_latent = 32,
     video_tokenizer = tokenizer,
@@ -46,7 +53,7 @@ rewards = torch.randn(2, 10)
 
 # learn dynamics / behavior cloned model
 
-loss = dynamics(
+loss = world_model(
     video = video,
     rewards = rewards,
     discrete_actions = discrete_actions
@@ -58,7 +65,7 @@ loss.backward()
 
 # then generate dreams
 
-dreams = dynamics.generate(
+dreams = world_model.generate(
     10,
     batch_size = 2,
     return_decoded_video = True,
@@ -67,7 +74,19 @@ dreams = dynamics.generate(
 
 # learn from the dreams
 
-actor_loss, critic_loss = dynamics.learn_from_experience(dreams)
+actor_loss, critic_loss = world_model.learn_from_experience(dreams)
+
+(actor_loss + critic_loss).backward()
+
+# learn from environment
+
+from dreamer4.mocks import MockEnv
+
+mock_env = MockEnv((256, 256), vectorized = True, num_envs = 4)
+
+experience = world_model.interact_with_env(mock_env, max_timesteps = 8, env_is_vectorized = True)
+
+actor_loss, critic_loss = world_model.learn_from_experience(experience)
 
 (actor_loss + critic_loss).backward()
 ```