[PD] GEM + Logitech Quickcam = no textures

[Martin Peach]

It may be that your texture is not a power of two - try 127x127 or 64x64.
Martin

Ian Smith-Heisters wrote:
> So, here's some another issue I'm having getting pd running smoothly on linux. I've got a Logitech Quickcam Pro
> 4000 and kernel 2.6.3 which has the pwc (phillips webcam (also for the logitech 4000)) kernel patch. I can plug
> in the camera, fire up camstream and the camera works fine and dandy. However, in Gem, trying to texture the
> pix_video to a sphere:
> 
> [gemhead]--[rotateXYZ]--[pix_video]--[pix_texture]--[sphere]
> 
> I don't get any texture, just the white sphere. I tried pix_videoNEW and pix_texture2 and doing a
> [pix_pix2sig~]--[pix_sig2pix~] in there, and none of that changed anything. When I start rendering I get this
> feedback, which would seem to mean it's working except maybe the last line:
> //begin
> GEM: Start rendering
> pix_videoNEW: starting transfer
> starting transfer
> cap: name Logitech QuickCam Pro 4000 type 1 channels 1 maxw 352 maxh 288 minw 160 minh 120
> 
> picture: brightness 31744 depth 24 palette 15
> 
> channel 0 name Webcam type 2 flags 0
> 
> setting to channel 0
> buffer size 304128, frames 2, offset 0 152064
> 
> wanted format is 0x1908
> setting cmcapture to 160x120    5
> now trying standard palette 15
> frame 0 0, format 15, width 160, height 120
> 
> GEM: pix_video: Opened video connection 23
> vmmap 82A2364
> VIDIOCSYNC: Invalid argument
> //end
> 
> The kern.log shows positive seeming feedback, saying the following when I stop rendering:
> 
> pwc Frame buffer underflow (21825 bytes); discarded.
> pwc Closing video device: 212 frames received, dumped 0 frames, 1 frames with errors.
> 
> On a subsequent try it said only
> 
> pwc Closing video device: 23 frames received, dumped 0 frames, 0 frames with errors.
> 
> As usual, any help, even a pointer in the right direction, would be greatly appreciated.
> 
> Thankyou,
> Ian Smith-Heisters
> 
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