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import viser
from pathlib import Path
from typing import Literal
from typing import Tuple, Callable
from nerfview import Viewer, RenderTabState
class GsplatRenderTabState(RenderTabState):
# non-controlable parameters
total_gs_count: int = 0
rendered_gs_count: int = 0
# controlable parameters
max_sh_degree: int = 5
near_plane: float = 1e-2
far_plane: float = 1e2
radius_clip: float = 0.0
eps2d: float = 0.3
backgrounds: Tuple[float, float, float] = (0.0, 0.0, 0.0)
render_mode: Literal[
"rgb", "depth(accumulated)", "depth(expected)", "alpha"
] = "rgb"
normalize_nearfar: bool = False
inverse: bool = True
colormap: Literal[
"turbo", "viridis", "magma", "inferno", "cividis", "gray"
] = "turbo"
rasterize_mode: Literal["classic", "antialiased"] = "classic"
camera_model: Literal["pinhole", "ortho", "fisheye"] = "pinhole"
class GsplatViewer(Viewer):
"""
Viewer for gsplat.
"""
def __init__(
self,
server: viser.ViserServer,
render_fn: Callable,
output_dir: Path,
mode: Literal["rendering", "training"] = "rendering",
):
super().__init__(server, render_fn, output_dir, mode)
server.gui.set_panel_label("gsplat viewer")
def _init_rendering_tab(self):
self.render_tab_state = GsplatRenderTabState()
self._rendering_tab_handles = {}
self._rendering_folder = self.server.gui.add_folder("Rendering")
def _populate_rendering_tab(self):
server = self.server
with self._rendering_folder:
with server.gui.add_folder("Gsplat"):
total_gs_count_number = server.gui.add_number(
"Total",
initial_value=self.render_tab_state.total_gs_count,
disabled=True,
hint="Total number of splats in the scene.",
)
rendered_gs_count_number = server.gui.add_number(
"Rendered",
initial_value=self.render_tab_state.rendered_gs_count,
disabled=True,
hint="Number of splats rendered.",
)
max_sh_degree_number = server.gui.add_number(
"Max SH",
initial_value=self.render_tab_state.max_sh_degree,
min=0,
max=5,
step=1,
hint="Maximum SH degree used",
)
@max_sh_degree_number.on_update
def _(_) -> None:
self.render_tab_state.max_sh_degree = int(
max_sh_degree_number.value
)
self.rerender(_)
near_far_plane_vec2 = server.gui.add_vector2(
"Near/Far",
initial_value=(
self.render_tab_state.near_plane,
self.render_tab_state.far_plane,
),
min=(1e-3, 1e1),
max=(1e1, 1e2),
step=1e-3,
hint="Near and far plane for rendering.",
)
@near_far_plane_vec2.on_update
def _(_) -> None:
self.render_tab_state.near_plane = near_far_plane_vec2.value[0]
self.render_tab_state.far_plane = near_far_plane_vec2.value[1]
self.rerender(_)
radius_clip_slider = server.gui.add_number(
"Radius Clip",
initial_value=self.render_tab_state.radius_clip,
min=0.0,
max=100.0,
step=1.0,
hint="2D radius clip for rendering.",
)
@radius_clip_slider.on_update
def _(_) -> None:
self.render_tab_state.radius_clip = radius_clip_slider.value
self.rerender(_)
eps2d_slider = server.gui.add_number(
"2D Epsilon",
initial_value=self.render_tab_state.eps2d,
min=0.0,
max=1.0,
step=0.01,
hint="Epsilon added to the egienvalues of projected 2D covariance matrices.",
)
@eps2d_slider.on_update
def _(_) -> None:
self.render_tab_state.eps2d = eps2d_slider.value
self.rerender(_)
backgrounds_slider = server.gui.add_rgb(
"Background",
initial_value=self.render_tab_state.backgrounds,
hint="Background color for rendering.",
)
@backgrounds_slider.on_update
def _(_) -> None:
self.render_tab_state.backgrounds = backgrounds_slider.value
self.rerender(_)
render_mode_dropdown = server.gui.add_dropdown(
"Render Mode",
("rgb", "depth(accumulated)", "depth(expected)", "alpha"),
initial_value=self.render_tab_state.render_mode,
hint="Render mode to use.",
)
@render_mode_dropdown.on_update
def _(_) -> None:
if "depth" in render_mode_dropdown.value:
normalize_nearfar_checkbox.disabled = False
else:
normalize_nearfar_checkbox.disabled = True
if render_mode_dropdown.value == "rgb":
inverse_checkbox.disabled = True
else:
inverse_checkbox.disabled = False
self.render_tab_state.render_mode = render_mode_dropdown.value
self.rerender(_)
normalize_nearfar_checkbox = server.gui.add_checkbox(
"Normalize Near/Far",
initial_value=self.render_tab_state.normalize_nearfar,
disabled=True,
hint="Normalize depth with near/far plane.",
)
@normalize_nearfar_checkbox.on_update
def _(_) -> None:
self.render_tab_state.normalize_nearfar = (
normalize_nearfar_checkbox.value
)
self.rerender(_)
inverse_checkbox = server.gui.add_checkbox(
"Inverse",
initial_value=self.render_tab_state.inverse,
disabled=True,
hint="Inverse the depth.",
)
@inverse_checkbox.on_update
def _(_) -> None:
self.render_tab_state.inverse = inverse_checkbox.value
self.rerender(_)
colormap_dropdown = server.gui.add_dropdown(
"Colormap",
("turbo", "viridis", "magma", "inferno", "cividis", "gray"),
initial_value=self.render_tab_state.colormap,
hint="Colormap used for rendering depth/alpha.",
)
@colormap_dropdown.on_update
def _(_) -> None:
self.render_tab_state.colormap = colormap_dropdown.value
self.rerender(_)
rasterize_mode_dropdown = server.gui.add_dropdown(
"Anti-Aliasing",
("classic", "antialiased"),
initial_value=self.render_tab_state.rasterize_mode,
hint="Whether to use classic or antialiased rasterization.",
)
@rasterize_mode_dropdown.on_update
def _(_) -> None:
self.render_tab_state.rasterize_mode = rasterize_mode_dropdown.value
self.rerender(_)
camera_model_dropdown = server.gui.add_dropdown(
"Camera",
("pinhole", "ortho", "fisheye"),
initial_value=self.render_tab_state.camera_model,
hint="Camera model used for rendering.",
)
@camera_model_dropdown.on_update
def _(_) -> None:
self.render_tab_state.camera_model = camera_model_dropdown.value
self.rerender(_)
self._rendering_tab_handles.update(
{
"total_gs_count_number": total_gs_count_number,
"rendered_gs_count_number": rendered_gs_count_number,
"near_far_plane_vec2": near_far_plane_vec2,
"radius_clip_slider": radius_clip_slider,
"eps2d_slider": eps2d_slider,
"backgrounds_slider": backgrounds_slider,
"render_mode_dropdown": render_mode_dropdown,
"normalize_nearfar_checkbox": normalize_nearfar_checkbox,
"inverse_checkbox": inverse_checkbox,
"colormap_dropdown": colormap_dropdown,
"rasterize_mode_dropdown": rasterize_mode_dropdown,
"camera_model_dropdown": camera_model_dropdown,
}
)
super()._populate_rendering_tab()
def _after_render(self):
# Update the GUI elements with current values
self._rendering_tab_handles[
"total_gs_count_number"
].value = self.render_tab_state.total_gs_count
self._rendering_tab_handles[
"rendered_gs_count_number"
].value = self.render_tab_state.rendered_gs_count
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