colorbar's color failed with colormap longer than 1024 in scatter

I try to make a scatter plot and I have found out a problem with ploting colorbar, when length of x, y vectors and colormap is greater than 1024. I don't get errors, just the colorbar becomes grey.

This is a code which I run:

rnd = randn(2000,1);
idx = randi([1 1280],2000,1);
idy = randi([1 1024],2000,1);

l=1024;
figure; 
markerSize=50;
map=colormap(jet(length(rnd(1:l))));
scatter(idx(1:l),idy(1:l),markerSize,map,'fill');
colorbar;

I change the length of these vectors and matrix with a parameter called 'l'. Now it is 1024 and I get a correct colorbar:

when I will change l for 1025 I get a grey colorbar:

What is the problem and how to solve it? I test Matlab R2014b Trial on Windows 7 Home Premium 64-bit. I have not found limitations of trial version on the mathworks webpage.

Answer 1

[Mike Garrity]

That's usually caused by confusion about how large a texture map the graphics card can handle. Some opengl drivers will sometimes say that they can handle a texture that they really can't. Could you please send the output of "opengl info" to www.mathworks.com/support so that we can make sure we have the details on this one? Thanks.

[Anna]

'opengl info' returns:

Version: '1.1.0'
Vendor: 'Microsoft Corporation'
Renderer: 'GDI Generic'
MaxTextureSize: 1024
Visual: 'Visual 0x1d, (RGB 24 bits (8 8 8), Z depth 16 ...'
Software: 'true'
SupportsGraphicsSmoothing: 0
SupportsDepthPeelTransparency: 0
SupportsAlignVertexCenters: 0
Extensions: {3x1 cell}
MaxFrameBufferSize: 0

and now probably I see this magic number (in MaxTextureSize). Is it possible to change it?

[Mohammad Abouali]

The best way learning MATLAB: look around in support area.

Learning new things all the time.

So, Anna, my 'OpenGL info' says:

    Version: '2.1 NVIDIA-8.26.28 310.40.55b01'
                             Vendor: 'NVIDIA Corporation'
                           Renderer: 'NVIDIA GeForce GT 750M OpenGL Engine'
                     MaxTextureSize: 16384
                             Visual: 'Visual (Undefined), (RGBA 32 bits (8 8 8 8),...'
                           Software: 'false'
          SupportsGraphicsSmoothing: 1
      SupportsDepthPeelTransparency: 1
         SupportsAlignVertexCenters: 1
                         Extensions: {138x1 cell}
                 MaxFrameBufferSize: 16384

and 1025 works for me. In fact it works up to 16384 and then 16385 becomes gray.