Hi Zhe, Rendering an 800 million triangle surface is asking for trouble. Each triangle takes about 24 bytes (3 integer vertex indices, vertex coordinate and normal vector float values), so 19 Gbytes of memory. Today's high-end graphics cards have 8 or 11 Gbytes of memory. But the triangle data does not have to go on the graphics card. The error might be a bug in the PyOpenGL library we use. The exact error is "invalid value" in glDrawElementsInstanced() with 2.5 billion vertices (= 3 * 800 milion). That number of vertices argument might be a signed 32-bit integer in which case its range is only -2 to 2 billion. It is supposed to be unsigned, but it could be PyOpenGL handles it as signed. You might try increasing your threshold a bit to get below 667 million triangles so you have less than 2 billion triangle vertices and see if that works. I am particularly puzzled by why you get the error saving the image, but apparently you do not get it when rendering to screen. Maybe it is the "supersample 3" option somehow. You might try "supersample 1" I have a hard time imagining how an 800 million triangle surface is useful to look at -- your tomogram only has twice that many voxels! Possibly the solution is to change how you are trying to show it. Tom
On Feb 16, 2021, at 9:18 AM, Zhe Wang <anchorwz@googlemail.com> wrote:
Hi,
I am trying to generate an image for a tomogram (1.6G). It can run through if I use a value that produces 33651412 triangles. But if I use my target level value, it will need 825273846 triangles and it threw the following error: (I am wondering if this is an edge case and how should that be dealt with if I want the image at my target level value?)
Many thanks, Zhe
PS: MacOS 11.01.1 with ChimeraX 0.9
Executing: save image test.map_z.jpeg supersample 3 width 1200 height 1200 Traceback (most recent call last): File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/ChimeraX_main.py", line 734, in init commands.run(sess, 'open %s' % arg) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/commands/run.py", line 31, in run results = command.run(text, log=log) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/commands/cli.py", line 2632, in run result = ci.function(session, **kw_args) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/commands/open.py", line 64, in open path_models = session.models.open(paths, format=format, name=name, **kw) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/models.py", line 604, in open session, filenames, format=format, name=name, **kw) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/io.py", line 477, in open_multiple_data models, status = open_data(session, fspec, format=format, name=name, **kw) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/io.py", line 431, in open_data models, status = open_func(*args, **kw) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/scripting.py", line 115, in open_command_script run(session, text) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/commands/run.py", line 31, in run results = command.run(text, log=log) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/commands/cli.py", line 2632, in run result = ci.function(session, **kw_args) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/commands/save.py", line 61, in save fmt.export(session, filename, fmt.nicknames[0], **kw) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/io.py", line 213, in export result = self.export_func(session, path, **kw) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/image.py", line 150, in save_image transparent_background=transparent_background) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/view.py", line 434, in image self.draw(c, drawings, swap_buffers = False) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/view.py", line 162, in draw self._draw_scene(camera, drawings) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/view.py", line 192, in _draw_scene shadow, multishadow = self._compute_shadowmaps(opaque_drawings + transparent_drawings, camera) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/view.py", line 541, in _compute_shadowmaps shadow_enabled = r.shadow.use_shadow_map(camera, drawings, self._shadow_bounds) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/opengl.py", line 1272, in use_shadow_map draw_depth(r, sdrawings, opaque_only = not r.material.transparent_cast_shadows) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/drawing.py", line 1413, in draw_depth draw_opaque(r, drawings) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/drawing.py", line 1394, in draw_opaque _draw_multiple(drawings, renderer, Drawing.OPAQUE_DRAW_PASS) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/drawing.py", line 1405, in _draw_multiple d.draw(renderer, draw_pass) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/drawing.py", line 698, in draw self.draw_self(renderer, draw_pass) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/drawing.py", line 705, in draw_self self._draw_geometry(renderer, opaque_only = any_transp) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/drawing.py", line 770, in _draw_geometry ds.draw(self.display_style) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/drawing.py", line 1575, in draw eb.draw_elements(etype, ni) File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/graphics/opengl.py", line 2483, in draw_elements GL.glDrawElementsInstanced(element_type, ne, GL.GL_UNSIGNED_INT, eo, ninst) File "src/latebind.pyx", line 32, in OpenGL_accelerate.latebind.LateBind.__call__ File "src/wrapper.pyx", line 318, in OpenGL_accelerate.wrapper.Wrapper.__call__ File "src/wrapper.pyx", line 311, in OpenGL_accelerate.wrapper.Wrapper.__call__ File "/nfs/public/rw/pdbe/httpd-em/software/chimerax/opt/UCSF/ChimeraX/lib/python3.7/site-packages/PyOpenGL-3.1.3b2-py3.7.egg/OpenGL/platform/baseplatform.py", line 409, in __call__ return self( *args, **named ) File "src/errorchecker.pyx", line 53, in OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError OpenGL.error.GLError: GLError( err = 1281, description = b'invalid value', baseOperation = glDrawElementsInstanced, pyArgs = ( GL_TRIANGLES, 2475821538, GL_UNSIGNED_INT, None, 1, ), cArgs = ( GL_TRIANGLES, 2475821538, GL_UNSIGNED_INT, None, 1, ), cArguments = ( GL_TRIANGLES, 2475821538, GL_UNSIGNED_INT, None, 1, ) )
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