sample of adding gui widgets

Author: robertsulej

examples/2_animations_and_callbacks/7_add_gui_widgets.py

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+"""
+Custom widgets added to TkOptiX GUI.
+"""
+
+import copy
+import numpy as np
+import tkinter as tk
+
+from plotoptix import TkOptiX
+from plotoptix.materials import m_clear_glass
+
+
+def autoexposure():
+    q = np.quantile(rt._raw_rgba[...,:3], 0.9)
+    rt.set_float("tonemap_exposure", 1 / q)
+    
+def slide(event=None):
+    att_len = 0.1 * int(slider.get())
+    m_clear_glass["VarFloat3"]["base_color"] = [ att_len, att_len, 100 ]
+    rt.setup_material("glass", m_clear_glass)
+
+
+
+rt = TkOptiX(start_now=False)
+
+rt.set_param(min_accumulation_step=8, max_accumulation_frames=500)
+
+rt.set_uint("path_seg_range", 8, 16)
+
+rt.set_background(0)
+rt.set_ambient(0.1)
+
+rt.set_float("tonemap_exposure", 1.0)
+rt.set_float("tonemap_gamma", 2.2)
+rt.add_postproc("Gamma")
+
+rt.setup_camera("cam", cam_type="Pinhole",
+                #work_distribution="RelNoiseBalanced", # use that in 0.17.1
+                eye=[-7, 8, 11], target=[0, 2, 0],
+                fov=22, glock=True
+               )
+rt.setup_light("light", pos=[4, 7, -1], color=20, radius=0.5)
+    
+rt.set_data("plane", geom="Parallelograms",
+            pos=[-100, 0, -100], u=[200, 0, 0], v=[0, 0, 200],
+            c=0.95
+           )
+
+m_clear_glass["VarFloat3"]["base_color"] = [ 0.3, 0.3, 100 ]
+rt.setup_material("glass", m_clear_glass)
+rt.set_data("cube", geom="Parallelepipeds",
+            pos=[-1, 3, -1], u=[2, 0, 0], v=[0, 0, 2], w=[0, 2, 0],
+            mat="glass"
+           )
+    
+rt.start()
+    
+### Add a panel with custom widgets ###
+
+# First, reconfigure the ray tracing output to leave a column for the new panel:
+rt._canvas.grid(column=0, row=0, columnspan=2, sticky="nsew")
+
+# ...then insert the panel:
+p1 = tk.PanedWindow()
+p1.grid(column=2, row=0, sticky="ns")
+
+# ...and add widgets, bind to handlers:
+btn = tk.Button(p1, text="Autoexposure", command=autoexposure)
+btn.grid(column=0, row=0, sticky="new", padx=8, pady=4)
+
+slider = tk.Scale(p1, from_=0, to=100, orient="horizontal")
+slider.set(int(10 * m_clear_glass["VarFloat3"]["base_color"][0]))
+slider.bind("<B1-Motion>", slide)
+slider.grid(column=0, row=1, sticky="new")