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colors for show_interior_samples.py #23

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colors for show_interior_samples.py #23

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31 changes: 27 additions & 4 deletions show_interior_samples.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@

import OpenGL.GL as gl
import pypangolin as pango
import numpy as np

if __name__ == "__main__":

Expand All @@ -19,6 +20,19 @@
data = deep_sdf.data.read_sdf_samples_into_ram(npz_filename)

xyz_neg = data[1][:, 0:3].numpy().astype(ctypes.c_float)
sdf_neg = data[1][:, 3].numpy().astype(ctypes.c_float)
rgb_neg = np.zeros_like(xyz_neg).astype(ctypes.c_float)

xyz_pos = data[0][:, 0:3].numpy().astype(ctypes.c_float)
sdf_pos = data[0][:, 3].numpy().astype(ctypes.c_float)
rgb_pos = np.zeros_like(xyz_pos).astype(ctypes.c_float)

s = 10.
rgb_neg[:,0] = np.minimum(s*sdf_neg / sdf_neg.min(), np.ones_like(sdf_neg))
rgb_neg[:,1] = 1. - rgb_neg[:,0]

rgb_pos[:,2] = np.minimum( s*sdf_pos / sdf_pos.max(), np.ones_like(sdf_pos))
rgb_pos[:,1] = 1. - rgb_pos[:,2]

win = pango.CreateWindowAndBind("Interior Samples | " + npz_filename, 640, 480)
gl.glEnable(gl.GL_DEPTH_TEST)
Expand Down Expand Up @@ -49,16 +63,25 @@
gl.glClear(gl.GL_COLOR_BUFFER_BIT + gl.GL_DEPTH_BUFFER_BIT)
d_cam.Activate(s_cam)

gl.glEnableClientState(gl.GL_VERTEX_ARRAY)

gl.glColor3ub(255, 255, 255)

gl.glEnableClientState(gl.GL_VERTEX_ARRAY)
gl.glEnableClientState(gl.GL_COLOR_ARRAY)
gl.glVertexPointer(
3, gl.GL_FLOAT, 0, xyz_neg.ctypes.data_as(ctypes.POINTER(ctypes.c_float))
)

gl.glColorPointer(
3, gl.GL_FLOAT, 0, rgb_neg.ctypes.data_as(ctypes.POINTER(ctypes.c_float))
)
gl.glDrawArrays(gl.GL_POINTS, 0, xyz_neg.shape[0])

gl.glVertexPointer(
3, gl.GL_FLOAT, 0, xyz_pos.ctypes.data_as(ctypes.POINTER(ctypes.c_float))
)
gl.glColorPointer(
3, gl.GL_FLOAT, 0, rgb_pos.ctypes.data_as(ctypes.POINTER(ctypes.c_float))
)
gl.glDrawArrays(gl.GL_POINTS, 0, xyz_pos.shape[0])
gl.glDisableClientState(gl.GL_COLOR_ARRAY)
gl.glDisableClientState(gl.GL_VERTEX_ARRAY)

pango.FinishFrame()