[Bf-committers] Camera view navigation rant

Campbell Barton ideasman42 at gmail.com
Sat May 14 04:41:36 CEST 2011 

Can't see why linking would fail, did you apply the patch against
blender r36676?

On Fri, May 13, 2011 at 9:46 PM, Damir Prebeg <blend.factory at gmail.com> wrote:
> Tried but I get linker error:
> LINK : fatal error LNK1181: cannot open input file
> '..\..\lib\Release\bf_editor_space_view3d.lib'
>
> On 13 May 2011 20:23, Campbell Barton <ideasman42 at gmail.com> wrote:
>> Patch for camera view locking.
>> Access from View panel under the "Lock to Cursor" button,
>>
>> http://codereview.appspot.com/4528068/
>>
>> On Wed, Apr 27, 2011 at 6:22 AM, Damir Prebeg <blend.factory at gmail.com> wrote:
>>> Actually, IMHO Blender has the best 3D view navigation on the market
>>> and I simply love it. I realize that and I cry every time when I have
>>> to manipulate some other 3D App views.
>>> I don't mind to have a set of widgets that would help, but current
>>> shortcut key based navigation is priceless.
>>> Only thing that I would like to have is ability to manipulate with cam
>>> (or object) view in the same way as I manipulate with every other
>>> view.
>>>
>>> On 27 April 2011 08:01, Daniel Salazar - 3Developer.com
>>> <zanqdo at gmail.com> wrote:
>>>> Yes Ive been thinking in something like that, I think the navigation
>>>> is overall too hard and hotkey oriented, lots of local rotations and
>>>> grabs without the widgets there to help. I wonder if we could design a
>>>> set of in camera view widgets?
>>>>
>>>> Daniel Salazar
>>>> 3Developer.com
>>>>
>>>>
>>>>
>>>> On Tue, Apr 26, 2011 at 11:59 PM, Damir Prebeg <blend.factory at gmail.com> wrote:
>>>>> How bout a pin icon in one corner of camera view so when activated,
>>>>> cam view (or any object view) would act as regular view?
>>>>> And ALT could be a shortcut key that would temporary glue cam to the
>>>>> view (Alt+MMB would rotate cam, CTRL+ALT+MMB would move camera forward
>>>>> or backward and SHIFT+ALT+MMB would pan camera?)
>>>>>
>>>>> On 27 April 2011 07:36, Mats Holmberg <mats.holmberg at 2me.fi> wrote:
>>>>>> And if this would work for the camera, then it should also work for anything else (lamps mainly). The script didn't work for me on osx - the view is not locked to the camera view and trackballing around loses the camera lock alltogether =)
>>>>>>
>>>>>> Cheers,
>>>>>> -mats
>>>>>>
>>>>>> On 27.4.2011, at 1.39, Daniel Salazar - 3Developer.com wrote:
>>>>>>
>>>>>>> @dfelinto(pto): nope, it would need to *stay* in camera view when panning
>>>>>>> and dollying around :)
>>>>>>>
>>>>>>> Daniel Salazar
>>>>>>> 3Developer.com
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Apr 26, 2011 at 12:58 PM, Dalai Felinto <dfelinto at gmail.com> wrote:
>>>>>>>>> Below you can find some code for (...) Lock camera to view.
>>>>>>>> Isn't this what Ctrl+Alt+Numpad0 do? (align camera to view -- which
>>>>>>>> even takes care of non-perspective views)
>>>>>>>>
>>>>>>>> On my understanding what people are ranting is for the lack of options
>>>>>>>> to move while "inside" the camera mode.
>>>>>>>>
>>>>>>>> --
>>>>>>>> Dalai
>>>>>>>>
>>>>>>>> 2011/4/26 bartius crouch <bartius.crouch at gmail.com>:
>>>>>>>>>> Also a lock camera to view option would be great so we can just move
>>>>>>>>>> the camera like we move any other viewport
>>>>>>>>>
>>>>>>>>> Like Campbell said, that isn't very hard to do in python. Below you can find
>>>>>>>>> some code for it.
>>>>>>>>> Copy the text below into the text-editor, Run Script (alt+P), go to 3d-view,
>>>>>>>>> search (spacebar) for Lock camera to view.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> import bpy
>>>>>>>>> import mathutils
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> class ModalOperator(bpy.types.Operator):
>>>>>>>>>    '''Move camera along with the viewport'''
>>>>>>>>>    bl_idname = "view3d.lock_camera"
>>>>>>>>>    bl_label = "Lock camera to view"
>>>>>>>>>
>>>>>>>>>    @classmethod
>>>>>>>>>    def poll(cls, context):
>>>>>>>>>        camera = context.scene.camera
>>>>>>>>>        if not camera:
>>>>>>>>>            return(False)
>>>>>>>>>        return(camera.name in context.scene.objects)
>>>>>>>>>
>>>>>>>>>    def modal(self, context, event):
>>>>>>>>>        camera = context.scene.camera
>>>>>>>>>        rv3d = context.space_data.region_3d
>>>>>>>>>
>>>>>>>>>        # rotation + location
>>>>>>>>>        camera.matrix_world = rv3d.view_matrix.copy().inverted()
>>>>>>>>>
>>>>>>>>>        # override location to take view_distance into account
>>>>>>>>>        rotation = rv3d.view_matrix.copy().to_3x3().inverted()
>>>>>>>>>        z_normal = mathutils.Vector([0.0, 0.0, 1.0]) * rotation
>>>>>>>>>        camera.location = rv3d.view_location + (rv3d.view_distance *
>>>>>>>>> z_normal)
>>>>>>>>>
>>>>>>>>>        # handle events
>>>>>>>>>        if event.type in ['LEFTMOUSE', 'NUMPAD_ENTER', 'RET']:
>>>>>>>>>            context.area.header_text_set()
>>>>>>>>>            return {'FINISHED'}
>>>>>>>>>        elif event.type == 'ESC':
>>>>>>>>>            camera.matrix_world = self.camera_matrix
>>>>>>>>>            context.area.header_text_set()
>>>>>>>>>            return {'CANCELLED'}
>>>>>>>>>
>>>>>>>>>        return {'PASS_THROUGH'}
>>>>>>>>>
>>>>>>>>>    def invoke(self, context, event):
>>>>>>>>>        context.window_manager.modal_handler_add(self)
>>>>>>>>>        self.camera_matrix = context.scene.camera.matrix_world.copy()
>>>>>>>>>        context.space_data.region_3d.view_perspective = 'PERSP'
>>>>>>>>>        context.area.header_text_set("ESC to cancel, ENTER or LMB to
>>>>>>>>> confirm")
>>>>>>>>>        return {'RUNNING_MODAL'}
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> def register():
>>>>>>>>>    bpy.utils.register_class(ModalOperator)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> def unregister():
>>>>>>>>>    bpy.utils.unregister_class(ModalOperator)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> if __name__ == "__main__":
>>>>>>>>>    register()
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>>
>>
>> --
>> - Campbell
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-- 
- Campbell

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