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vdb_render - Online in the Cloud

Run vdb_render in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command vdb_render that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


vdb_render - ray-traces OpenVDB volumes

SYNOPSIS


vdb_render in.vdb out.{exr,ppm} [options]

DESCRIPTION


Which: ray-traces OpenVDB volumes Options:

-aperture F
perspective camera aperture in mm (default: 41.2)

-camera S
camera type; either "persp[ective]" or "ortho[graphic]" (default: perspective)

-compression S
EXR compression scheme; either "none" (uncompressed), "rle" or "zip" (default: zip)

-cpus N
number of rendering threads, or 1 to disable threading, or 0 to use all available
CPUs (default: 0)

-far F camera far plane depth (default: 3.4e+38)

-focal F
perspective camera focal length in mm (default: 50)

-fov F perspective camera field of view in degrees (default: 44.8)

-frame F
ortho camera frame width in world units (default: 1)

-lookat X,Y,Z
rotate the camera to point to (X, Y, Z)

-name S
name of the volume to be rendered (default: render the first floating-point volume
found in in.vdb)

-near F
camera near plane depth (default: 0.001)

-res WxH
image dimensions in pixels (default: 1920x1080)

-r X,Y,Z

-rotate X,Y,Z
camera rotation in degrees (default: look at the center of the volume)

-t X,Y,Z

-translate X,Y,Z
camera translation

-up X,Y,Z
vector that should point up after rotation with -lookat (default: [0, 1, 0])

-v verbose (print timing and diagnostics)

-version
print version information and exit

-h, -help
print this usage message and exit

Level set options:
-color S
name of a vec3s volume to be used to set material colors

-isovalue F
isovalue in world units for level set ray intersection (default: 0)

-samples N
number of samples (rays) per pixel (default: 1)

-shader S
shader name; either "diffuse", "matte", "normal" or "position" (default: diffuse)

Dense volume options:
-absorb R,G,B
absorption coefficients (default: [0.1, 0.1, 0.1])

-cutoff F
density and transmittance cutoff value (default: 0.005)

-gain F
amount of scatter along the shadow ray (default: 0.2)

-light X,Y,Z[,R,G,B]
light source direction and optional color (default: [0.3, 0.3, 0, 0.7, 0.7, 0.7])

-scatter R,G,B
scattering coefficients (default: [1.5, 1.5, 1.5])

-shadowstep F
step size in voxels for integration along the shadow ray (default: 3)

-step F
step size in voxels for integration along the primary ray (default: 1)

EXAMPLES


vdb_render crawler.vdb crawler.exr -shader diffuse -res 1920x1080 \

-focal 35 -samples 4 -translate 0,210.5,400 -compression rle -v

vdb_render bunny_cloud.vdb bunny_cloud.exr -res 1920x1080 \

-translate 0,0,110 -absorb 0.4,0.2,0.1 -gain 0.2 -v

Warning:
This is not (and is not intended to be) a production-quality renderer. Use it for
fast previewing or simply as a reference implementation for integration into
existing ray tracers.

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