Image Sampler Crashing/Not Working

I've been trying to use the image sampler to generate a simple facade pattern but as soon as I add an image, it locks up and crashes. Originally I had a 3000x500px image which I thought might be too large. After resizing it to 330x50 (as a test), it still froze up. When it is not freezing up, it is not correctly evaluating the brightness of the image--it tells me every brightness value is 1.0, which is incorrect.

I don't think I'm doing anything wrong...can someone shed some light on this?

Running 0.09.0076 BTW

thanks in advance

Attachments:

Capture.PNG, 65 KB

Replies to This Discussion

Permalink Reply by David Rutten on August 26, 2015 at 1:47pm

Are you sampling the colour or the brightness?

Permalink Reply by Bob White on August 26, 2015 at 1:56pm

david-

just the brightness....

i've attached the file in question

Permalink Reply by David Rutten on August 26, 2015 at 2:52pm

No you haven't.

Permalink Reply by Vicente Soler on August 26, 2015 at 3:11pm

One problem you can tell from the screenshot is that your points are in the XZ plane. You want them in the XY plane.

The other problem might be the image size domains, by default they range from 0 to 1. I recommend keeping them on the default value and just input a grid of points that range from (0,0) to (1,1).

Permalink Reply by Bob White on August 26, 2015 at 3:22pm

whoops, my bad.

Vincente, maybe i've misunderstood how this component works, I've used the XZ plane because I want to align the rectangular grid vertically along a building surface. As for the domain, I was mapping it to the dimensions of the surface to be manipulated, though I often get confused by domain logic so I may be making the wrong move here. As you can see in the image, I'm trying to manipulate each brick by the corresponding brightness value of the image I used.

thanks for all your help!

Attachments:

CMU Images.gh, 77 KB
Capture2.PNG, 262 KB

Permalink Reply by Bob White on August 26, 2015 at 3:41pm

so, I think you're right vincente. If I remove the xz plane and instead use world XY, it evaluates the image correctly. I assumed the X and Y mentioned in the image sampler were intrinsic to the image and NOT the X and Y world axis. But it looks like thats the case. Anyway, I think it will work fine from here!

thanks for checking in

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