April 2007 - Pro-apps-dev - lists.apple.com

Re: Pro-apps-dev Digest, Vol 4, Issue 26
by Michael B. Johnson 30 Apr '07

30 Apr '07

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Re: camera access in Motion
by Christoph Vonrhein 30 Apr '07

30 Apr '07

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Re: camera access in Motion
by Dave Howell 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com The FxPlug analog to a callback suite is a host API protocol. Dave _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… We haven't yet written an interface for getting 3D info, but we'd like to do it as soon as possible for a bunch of different reasons. I'm hoping we can get it into the first point release of Motion 3. However, our time is limited, so I want to make sure that we implement only things that people actually need. Would that be encapsulated in versioned "suites" of callbacks as in AE or OFX? This email sent to site_archiver(a)lists.apple.com

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Re: camera access in Motion
by Christoph Vonrhein 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Hi, Yes. In my opinion this would be a great addition. Christoph _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… Clearly you need the 4x4 matrix of the camera. Do you also need the 4x4 matrix of the layer the effect is applied to? Do you need to get the matrices of all the layers in a scene? Do you need to get the matrices for the lights in the scene? With the matrices of all of the layers and the info where the light are, a plugin can create effects around those layers which go along with the camera movement within the 3D-space of Motion. But then it is also very important to get the focal length of Motion's camera. This email sent to site_archiver(a)lists.apple.com

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Re: camera access in Motion
by Christoph Vonrhein 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Hi Darrin, On Apr 30, 2007, at 9:10 AM, Darrin Cardani wrote: On Apr 28, 2007, at 1:50 PM, Christoph Vonrhein wrote: Hi Apple, hi Peter, - X, Y, Z position of the camera. - The (rotation-)vectors where the camera is looking at (matrice). Yes, that would be perfect. Christoph _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… same thing here. For the FxPlug interface I would also like to get my hands on the following 3D-data: In other apps, like AE, I believe they just give the 4x4 transform of the camera, and you can figure out where it's looking by taking the normal <0,0,1> and passing it through the 4x4 camera matrix. Would that be sufficient? This email sent to site_archiver(a)lists.apple.com

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Re: camera access in Motion
by Pierre Jasmin 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Organization: RE:Vision Effects User-agent: Thunderbird 1.5.0.10 (Windows/20070221) _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Re: Can an FXPlug report to me path to source media?
by Pierre Jasmin 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Organization: RE:Vision Effects User-agent: Thunderbird 1.5.0.10 (Windows/20070221) Hi, Wes, Pierre - Paul On Apr 30, 2007, at 12:44 PM, Wes Plate wrote: --Wes Plate Automatic Duck, Inc. http://www.automaticduck.com This email sent to jasmin(a)revisionfx.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… Paul Schneider wrote: no, unfortunately we don't have a mechanism to give you that information. I can definitely see how that would be useful; please file an enhancement request through ADC! I see there is a new open timeline thing in FC6, where it looks like you support different formats on the same timeline, and it says in the marketing literature that you match to the first clip dropped in the project,... what does it mean now when you reference another clip in an effect (will these attribute transforms get baked in the image we get?). For example if I have an SD 29.97 FPS "fielded" video source and I bring in a piece of HDV footage (the 24P in a 29.97 fps thing), and I want to use them as inputs to an effect. Do I know get inputs of different sizes? I assume the answer is "No" and that an FXPlug will only return image data, but is it possible I know this is dangerous/complicated because between the clip and the footage file could be a nested sequence, composited clips, other messiness, but aside from that, if an effect was applied to a simple single clip in a timeline, could that effect return the path to the source media as well as the footage offset? _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/pschneider%40apple.com This email sent to pschneider(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/jasmin%40revisionfx.com This email sent to site_archiver(a)lists.apple.com

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Re: Determining if a well image is used without actually getting the image
by Dave Howell 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Determining if a well image is used without actually getting the image
by Emile Tobenfeld (a. k. a Dr. T) 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Hi F. Scott Fitzgerald Emile Tobenfeld, Ph. D. Video Producer Image Processing Specialist Video for your HEAD! Boris FX http://www.foryourhead.com http://www.borisfx.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… It would be useful for us to be able to determine whether a well image is used without actually getting the bitmap. Is this possible. If not, consider it a feature request. -- "The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function." Visit "Before the Fall -- Images of the World Trade Center" at http://www.foryourhead.com This email sent to site_archiver(a)lists.apple.com

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Re: camera access in Motion
by Matt Rhodes 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com It comes down to being able to recreate the scene in our own code, of course. Since we can't guarantee that our host has 3D capabilities, many of our 3D plug-ins offer a camera and a few directional lights. Therefore, if we don't get all of the above (say, just cameras), we'd still be ok - just not as functional as our AE counterparts (how's that for incentive). We like getting access to a 3D Layer's transform because we offer the ability to place our 3D objects at the same location/orientation as another object in the system. This lets the user animate a plane using the host's animation system and then "replace" that plane with one of our 3D objects. With Motion and FCP's realtime interaction, we'd love to have access to a layer's 3D info. Thanks a lot. Matt Rhodes Zaxwerks, Inc. _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… So, here's an open question to plug-in developers, to put this forum vehicle to the test... Of all of these concepts (camera matrix, focal length, lighting positions and properties, layer matrices, etc.), what would be the bare minimum feature set you would need in an API in order to do something interesting with 3D? What would you need in order to do more advanced 3D effects? For us (Zaxwerks), a minimum would be: - Camera - Transform matrix - Focal length/aperture/field of view (enough for lens definition) - Lights - Type (spot, point, etc.) - Color/intensity - Any other light-specific parameters (cone angle, falloff, shadow- values, etc.) - 3D Layers - Transform matrix - Size (width/height) - Layer Name or other way for a user to identify a particular 3D layer to us This email sent to site_archiver(a)lists.apple.com

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