To add a little more to this, here's an example: --- import pylab from yt.mods import * # following http://yt-project.org/docs/2.6/examining/generic_array_data.html arr = np.random.random(size=(64,64,64)) data = dict(Density = arr) bbox = np.array([[-1.5, 1.5], [-1.5, 1.5], [-1.5, 1.5]]) pf = load_uniform_grid(data, arr.shape) import yt.visualization.volume_rendering.api as vr c = (pf.domain_right_edge + pf.domain_left_edge)/2.0 L = np.array([-0.0, -1.0, -1.0]) W = 2.0*pf.domain_width N = 720 tf = vr.ColorTransferFunction((0.0,1.0)) tf.add_layers(10, 0.1) cam = vr.Camera(c, L, W, N, transfer_function=tf, pf=pf, fields=[('gas', 'Density')], log_fields=[False]) rot_vector=[0.0,0.0,1.0] cam.rotate(2*np.pi/6., rot_vector=rot_vector) im = cam.snapshot() nim = cam.draw_domain(im) pylab.imshow(nim) pylab.savefig("test.png") --- This generates a simple cube with the domain drawn, and it looks as I expect. If I change Camera to PerspectiveCamera, but leave everything else unchanged, I get a blank image. On Sat, May 24, 2014 at 4:41 PM, Michael Zingale < michael.zingale@stonybrook.edu> wrote:

I'd like to try using the PerspectiveCamera instead of the normal orthographic Camera. My script renders fine with Camera(), but I thought that I should be able to just change Camera() to PerspectiveCamera() and it should render with the perspective. Instead, I get an empty rendering -- is there something else one needs to do to use the PerspectiveCamera rather than just changing the class name but otherwise keeping the argument list the same?

Mike

-- Michael Zingale Associate Professor

Dept. of Physics & Astronomy • Stony Brook University • Stony Brook, NY 11794-3800 *phone*: 631-632-8225 *e-mail*: Michael.Zingale@stonybrook.edu *web*: http://www.astro.sunysb.edu/mzingale

-- Michael Zingale Associate Professor Dept. of Physics & Astronomy • Stony Brook University • Stony Brook, NY 11794-3800 *phone*: 631-632-8225 *e-mail*: Michael.Zingale@stonybrook.edu *web*: http://www.astro.sunysb.edu/mzingale