Hi all,

I have a simple scene.

Just Craig geometry and a camera with pixel aspect ratio set to 2 and resolution to 2200x2160. Looking through the camera I can see the mask scale correctly. However when flipbooking through Mplay, I can only see squeezed frames. I am wondering if Houdini's flipbook tool take into account pixel aspect ratio?

I am testing on H18 & H18.5

Regards,

All flip book is doing is a screen grab from the current aspect ratio of the 3D viewport (make it real tiny for a test). That screen grab is stretched to the requested resolution on the Size tab of the Render Flipbook dialog. Instead of clicking once on the MPlay icon, try clicking and holding on the icon. This should bring up the setting dialog I mentioned. On the Output tab, you may want to change Render from Current Viewport to Current Beauty Pass. this will remove a lot of the on-screen guides with out having to fuss with D-KEY flags.

You may have better luck by dropping down an OpenGL rop in the /out context and configuring your render using that node, which does not stretch the viewport.

If I'm going to flipbook my screen, I leave my camera at 1280x720 and stretch my viewport to that approximate size.

Enivob
All flip book is doing is a screen grab from the current aspect ratio of the 3D viewport (make it real tiny for a test). That screen grab is stretched to the requested resolution on the Size tab of the Render Flipbook dialog. Instead of clicking once on the MPlay icon, try clicking and holding on the icon. This should bring up the setting dialog I mentioned. On the Output tab, you may want to change Render from Current Viewport to Current Beauty Pass. this will remove a lot of the on-screen guides with out having to fuss with D-KEY flags.

You may have better luck by dropping down an OpenGL rop in the /out context and configuring your render using that node, which does not stretch the viewport.

If I'm going to flipbook my screen, I leave my camera at 1280x720 and stretch my viewport to that approximate size.

Thank you very much for you reply.

Sorry if I didn't make myself clear in my original post. I did set the resolution in Flipbook Setting/Size to match my camera resolution. The viewport look correct but result in MPlay/JPG output is still squeezed.

Did you check "Crop out view mask overlay"?

Setting the size is just setting the size to stretch to after the screen grab. I know it sounds weird, but the camera width height settings are irrelevant to MPlay.

And overall, MPlay always generates a slightly blurry result. It's not a render engine.

Here is camera set to 128x72 with the viewport stretched large.




Here is the camera set to 1280x720 with the viewport stretched small.