pcolor in R2016a broken when using Intel graphics?

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SimpleYeti
SimpleYeti 2016-3-29
编辑： Rick Irons 2016-3-31
I've run into a problem using 'pcolor' on R2016a. When I run the following:
[x, y] = meshgrid(linspace(0, 1, 200), linspace(0, 1, 200));
pcolor(x, y, ones(size(x)))
I get:
Obviously this is not correct. When I set 'opengl software' the problem goes away. This does not occur when using R2015a on the same laptop, and I believe it might be tied to the integrated graphics on the laptop in question (Intel HD Graphics 5500 on Windows 10 using the latest driver) as it does not occur on a desktop using Nvidia graphics. Is there anything that I can do to fix this problem without resorting to software OpenGL?
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Image Analyst
Image Analyst 2016-3-29
You can use meshgrid() to create two 2D arrays of coordinates (your x and y) that you can use directly in your function to create a 2D image, which you then pass in to imshow(). Do you want an example?
SimpleYeti
SimpleYeti 2016-3-29
Thank you for the suggestion, but imshow() is of much less utility than pcolor() when the background grid is important information.

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Rick Irons
Rick Irons 2016-3-29
编辑：Rick Irons 2016-3-31
This is a known driver issue that Intel has addressed in their recent 4380 driver. One workaround is to use the OpenGL hardware basic mode (“opengl hardwarebasic”). Another option is to disable the align vertex centers property (“h.AlignVertexCenters = 'off'") if it is available for the object demonstrating the issue.

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