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v1.1.1-rc2; add better velocity visualization

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This commit is contained in:
wty-yy
2026-01-27 14:48:06 +08:00
parent 493fa04341
commit 9e6ca069ef
1 changed files with 42 additions and 31 deletions
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73
robogauge/tasks/simulator/mujoco_simulator.py
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@@ -48,6 +48,10 @@ class MujocoSimulator:
self.target_pos = None
self.target_velocity: Optional[VelocityGoal] = None
self.penetration_reset_count = 0
self.vis_smooth_factor = 0.01
self.vis_cur_vel = np.zeros(3)
self.ren_smooth_factor = self.vis_smooth_factor / self.cfg.render.video_fps / self.cfg.physics.simulation_dt
self.ren_cur_vel = np.zeros(3)
def load(
self,
@@ -280,13 +284,15 @@ class MujocoSimulator:
rgba=[1, 0, 0, 1]
)
def add_arrow(geom_elem, pos, vec, rgba, scale=1.0):
def add_thick_arrow(geom_elem, pos, vec, rgba, scale=0.7):
vel_norm = np.linalg.norm(vec)
if vel_norm < 1e-3:
display_norm = min(vel_norm * scale, 1.0)
if display_norm < 0.10:
mujoco.mjv_initGeom(
geom_elem,
type=mujoco.mjtGeom.mjGEOM_NONE,
size=[0, 0, 0], pos=pos, mat=np.eye(3).flatten(), rgba=[0, 0, 0, 0]
size=[0,0,0], pos=pos, mat=np.eye(3).flatten(), rgba=[0,0,0,0]
)
return
@@ -295,15 +301,16 @@ class MujocoSimulator:
vec_normalized = vec / vel_norm
mujoco.mju_quatZ2Vec(target_quat, vec_normalized)
mujoco.mju_quat2Mat(mat, target_quat)
total_length = max(vel_norm * scale * 0.5, 0.05)
shaft_radius = 0.015
head_radius = 0.035
mat = mat.reshape(3, 3)
mat[:, 2] *= display_norm
mujoco.mjv_initGeom(
geom_elem,
type=mujoco.mjtGeom.mjGEOM_ARROW,
size=[shaft_radius, head_radius, total_length],
size=[0.02, 0.02, display_norm], # [height, width, length]
pos=pos,
mat=mat,
mat=mat.flatten(),
rgba=rgba
)
@@ -329,38 +336,42 @@ class MujocoSimulator:
mujoco.mju_rotVecQuat(offset_world, offset_body, base_quat)
start_pos = base_pos_world + offset_world
# Body Frame -> World Frame
target_lin_vel_body = np.array([
self.target_velocity.lin_vel_x,
self.target_velocity.lin_vel_y,
0.0
])
target_lin_vel_world = np.zeros(3)
mujoco.mju_rotVecQuat(target_lin_vel_world, target_lin_vel_body, base_quat)
tgt_vel_body = np.array([self.target_velocity.lin_vel_x, self.target_velocity.lin_vel_y, 0.0])
# Body Frame -> World Frame
raw_current_vel = self.proprio.base.lin_vel
current_lin_vel_body = np.array([
raw_current_vel[0],
raw_current_vel[1],
0.0
])
current_lin_vel_world = np.zeros(3)
mujoco.mju_rotVecQuat(current_lin_vel_world, current_lin_vel_body, base_quat)
raw_cur_vel = self.proprio.base.lin_vel
cur_vel_body = np.array([raw_cur_vel[0], raw_cur_vel[1], 0.0])
COLOR_GREEN = [0, 1, 0, 1] # target
COLOR_BLUE = [0, 0, 1, 1] # current
# EMA: v_smooth = alpha * v_new + (1 - alpha) * v_old
alpha = self.vis_smooth_factor if ctype == 'viewer' else self.ren_smooth_factor
if ctype == 'viewer':
self.vis_cur_vel = alpha * cur_vel_body + (1 - alpha) * self.vis_cur_vel
else:
self.ren_cur_vel = alpha * cur_vel_body + (1 - alpha) * self.ren_cur_vel
tgt_vel_world = np.zeros(3)
cur_vel_world = np.zeros(3)
mujoco.mju_rotVecQuat(tgt_vel_world, tgt_vel_body, base_quat)
if ctype == 'viewer':
mujoco.mju_rotVecQuat(cur_vel_world, self.vis_cur_vel, base_quat)
else:
mujoco.mju_rotVecQuat(cur_vel_world, self.ren_cur_vel, base_quat)
COLOR_CMD = [0, 1, 0, 1] # Green 0x00ff00
COLOR_REAL = [0, 0, 1, 1] # Blue 0x0000ff
if ctype == 'viewer':
add_arrow(handle.user_scn.geoms[viewer_geom_idx], start_pos, target_lin_vel_world, COLOR_GREEN)
# Cmd Arrow
add_thick_arrow(handle.user_scn.geoms[viewer_geom_idx], start_pos, tgt_vel_world, COLOR_CMD)
viewer_geom_idx += 1
add_arrow(handle.user_scn.geoms[viewer_geom_idx], start_pos, current_lin_vel_world, COLOR_BLUE)
# Real Arrow
add_thick_arrow(handle.user_scn.geoms[viewer_geom_idx], start_pos, cur_vel_world, COLOR_REAL)
viewer_geom_idx += 1
else:
# Renderer Append
handle.scene.ngeom += 1
add_arrow(handle.scene.geoms[handle.scene.ngeom - 1], start_pos, target_lin_vel_world, COLOR_GREEN)
add_thick_arrow(handle.scene.geoms[handle.scene.ngeom - 1], start_pos, tgt_vel_world, COLOR_CMD)
handle.scene.ngeom += 1
add_arrow(handle.scene.geoms[handle.scene.ngeom - 1], start_pos, current_lin_vel_world, COLOR_BLUE)
add_thick_arrow(handle.scene.geoms[handle.scene.ngeom - 1], start_pos, cur_vel_world, COLOR_REAL)
if ctype == 'viewer':
handle.user_scn.ngeom = viewer_geom_idx