ae position keys export an shift correction

0.6.5

- feat: AE key exporter (not exposed).
    - Add a basic 2D positions-keyframes exporter (in camera view space). export 2d position of selected object origin to copy-paste on AE layer.
- feat: If 'Camera Overscan' addon is activated, append a button to fix camera shift.

CHANGELOG.md

@@ -14,6 +14,13 @@ Activate / deactivate layer opaticty according to prefix
 Activate / deactivate all masks using MA layers
 -->
 
+
+0.6.5
+
+- feat: AE key exporter (not exposed).
+    - Add a basic 2D positions-keyframes exporter (in camera view space). export 2d position of selected object origin to copy-paste on AE layer.
+- feat: If 'Camera Overscan' addon is activated, append a button to fix camera shift.
+
 0.6.4
 
 - ui: render selected scene has hints on popup panekl like gen batch

OP_export_to_ae.py

@@ -0,0 +1,206 @@
+import bpy
+# import bpy_extras
+from bpy_extras.object_utils import world_to_camera_view # as cam_space
+from mathutils import Vector
+from pathlib import Path
+import json
+from . import fn
+
+'''
+def Export_AE_2d_position_json_data():
+    scn = bpy.context.scene
+    cam = scn.objects.get('anim_cam')
+    if not cam:
+        print('Active camera not "anim_cam"')
+        cam = scn.camera
+    
+    rx = scn.render
+    rx, ry = rd.resolution_x, rd.resolution_y
+
+    targets = [o for o in bpy.context.selected_objects if o.type != 'CAMERA']
+
+    for ob in targets:
+        # get an idea of the scale relative to image res ? (too complex since it's not even the right resolution...)
+        pos = world_to_camera_view(scn, scn.objects['anim_cam'], ob.matrix_world.to_translation())[:-1]
+        pix_pos = Vector((pos[0]*rx, (1-pos[1])*ry))
+'''
+
+
+# Unused (old func that might not be usefull at all...)
+def correct_shift(vec, cam):
+    resX = bpy.context.scene.render.resolution_x
+    resY = bpy.context.scene.render.resolution_y
+    ratio = resX/resY
+    shiftX = 2*cam.data.shift_x
+    shiftY = 2*cam.data.shift_y
+
+    if ratio<1:
+        return vec - Vector((shiftX*(1/ratio), shiftY, 0))
+    elif ratio>1:
+        return vec - Vector((shiftX, shiftY*ratio, 0))
+    else:
+        return vec - Vector((shiftX, shiftY, 0))
+
+def export_AE_objects_position_keys():
+    '''Export keys as paperclip to paste in after'''
+    C= bpy.context
+    result = {}
+
+    for fr in range(C.scene.frame_start,C.scene.frame_end + 1):
+        
+        C.scene.frame_set(fr)    
+
+        for o in C.selected_objects:
+            if not result.get(o.name):
+                result[o.name] = []
+            proj2d = world_to_camera_view(C.scene,C.scene.camera,o.matrix_world.to_translation())# + Vector((.5,.5,0))
+        
+            # proj2d = correct_shift(proj2d,C.scene.camera) # needed ?
+            x = (proj2d[0]) * C.scene.render.resolution_x
+            y = -(proj2d[1]) * C.scene.render.resolution_y + C.scene.render.resolution_y
+            
+            result[o.name].append((fr,x,y))
+
+    for name,value in result.items():
+        
+        prefix = 'Adobe After Effects 8.0 Keyframe Data\n\n'
+        prefix += '\tUnits Per Second\t%s\n'%C.scene.render.fps
+        prefix += '\tSource Width\t%s\n'%C.scene.render.resolution_x
+        prefix += '\tSource Height\t%s\n'%C.scene.render.resolution_y
+        prefix += '\tSource Pixel Aspect Ratio\t1\n'
+        prefix += '\tComp Pixel Aspect Ratio\t1\n\n'
+        prefix += 'Transform\tPosition\n'
+        prefix += '\tFrame\tX pixels\tY pixels\tyZ pixels\t\n'
+        
+        for v in value:
+            prefix += '\t%s\t%s\t%s\t\n'%(v[0],v[1],v[2])
+
+        prefix += '\n\n'
+        prefix += 'End of Keyframe Data\n'
+
+        blend = Path(bpy.data.filepath)
+        keyfile = blend.parent / 'render' / f'pos_{name}.txt'
+        
+        print(f'exporting keys for {name}')
+        with open(keyfile, 'w') as fd:
+            fd.write(prefix)
+
+class GPEXP_OT_export_keys_to_ae(bpy.types.Operator):
+    bl_idname = "gp.export_keys_to_ae"
+    bl_label = "Export 2D position to AE"
+    bl_description = "Export selected objects positions as text file containing key paperclip for AfterEffects layers"
+    bl_options = {"REGISTER"}
+
+    @classmethod
+    def poll(cls, context):
+        return context.selected_objects
+
+    def execute(self, context):
+        export_AE_objects_position_keys()
+        return {"FINISHED"}
+
+
+class GPEXP_OT_fix_overscan_shift(bpy.types.Operator):
+    bl_idname = "gp.fix_overscan_shift"
+    bl_label = "Fix Cam Shift Value With Overscan"
+    bl_description = "(Gp render operator) change shift values to re-center overscan"
+    bl_options = {"REGISTER"}
+
+    # @classmethod
+    # def poll(cls, context):
+    #     return context.object
+
+    init_rx : bpy.props.IntProperty(name='pre-overscan res x')
+    init_ry : bpy.props.IntProperty(name='pre-overscan res y')
+
+    def invoke(self, context, event):
+        # if not context.object:
+        #     self.report({'ERROR'}, 'No object selected')
+        #     return {'CANCELLED'}
+
+        self.use_selection = False
+        if context.active_object and context.active_object.type == 'CAMERA' and context.active_object != context.scene.camera:
+            self.use_selection = True
+            self.cam_ob = context.active_object
+        else:
+            self.cam_ob = context.scene.camera
+
+        self.init_rx = context.scene.render.resolution_x
+        self.init_ry = context.scene.render.resolution_y
+
+        return context.window_manager.invoke_props_dialog(self)
+
+    def draw(self, context):
+        layout = self.layout
+        
+        if self.use_selection:
+            col = layout.column()
+            col.label(text=f'Camera "{self.cam_ob.name}" selected', icon='INFO')
+            col.label(text='Change in shifts will apply on this one', icon='BLANK1')
+
+        col = layout.column()
+        col.label(text='Overscan res (current)')
+        col.label(text=f'{context.scene.render.resolution_x} x {context.scene.render.resolution_y}')
+
+        col = layout.column()
+        col.label(text='Enter Initial (pre-overscan) resolution:')
+        row = col.row(align=True)
+        row.prop(self, 'init_rx', text='')
+        row.prop(self, 'init_ry', text='')
+
+    def execute(self, context):
+        cam = self.cam_ob.data
+        
+        ratio_x = self.init_rx / context.scene.render.resolution_x
+        ratio_y = self.init_ry / context.scene.render.resolution_y
+
+        if ratio_x == 1 and ratio_y == 1:
+            self.report({'ERROR'}, 'Same init and overscan resolution, nothing to change')
+            return {'CANCELLED'}
+
+        if ratio_x != 1:
+            if fn.has_keyframe(cam, 'shift_x'):
+                fcu = cam.animation_data.action.fcurves.find('shift_x')
+                for k in fcu.keyframe_points:
+                    k.y = k.y * ratio_x
+            else:
+                if cam.shift_x != 1:
+                    cam.shift_x = cam.shift_x * ratio_x
+        
+        if ratio_y != 1:
+            if fn.has_keyframe(cam, 'shift_y'):
+                fcu = cam.animation_data.action.fcurves.find('shift_y')
+                for k in fcu.keyframe_points:
+                    k.y = k.y * ratio_y
+            else:
+                if cam.shift_y != 1:
+                    cam.shift_y = cam.shift_y * ratio_y
+
+        return {"FINISHED"}
+
+
+def overcan_shift_fix_ui(self, context):
+    layout = self.layout
+    layout.operator("gp.fix_overscan_shift")
+
+
+classes=(
+GPEXP_OT_export_keys_to_ae,
+GPEXP_OT_fix_overscan_shift,
+)
+
+def register(): 
+    for cls in classes:
+        bpy.utils.register_class(cls)
+
+    if hasattr(bpy.types, 'RENDER_PT_overscan'):
+        bpy.types.RENDER_PT_overscan.append(overcan_shift_fix_ui)
+
+
+def unregister():
+    if hasattr(bpy.types, 'RENDER_PT_overscan'):
+        bpy.types.RENDER_PT_overscan.remove(overcan_shift_fix_ui)
+
+    for cls in reversed(classes):
+        bpy.utils.unregister_class(cls)
+    

__init__.py

@@ -2,7 +2,7 @@ bl_info = {
     "name": "GP Render",
     "description": "Organise export of gp layers through compositor output",
     "author": "Samuel Bernou",
-    "version": (0, 6, 4),
+    "version": (0, 6, 5),
     "blender": (2, 93, 0),
     "location": "View3D",
     "warning": "",
@@ -21,6 +21,7 @@ from . import OP_crop_to_object
 from . import OP_render_scenes
 # from . import OP_check_layer_status
 from . import OP_render_pdf
+from . import OP_export_to_ae
 from . import prefs
 from . import OP_setup_layers
 from . import ui
@@ -48,6 +49,7 @@ def register():
     OP_render_scenes.register()
     # OP_check_layer_status.register()
     OP_render_pdf.register()
+    OP_export_to_ae.register()
     OP_setup_layers.register()
     ui.register()
     # bpy.types.Scene.pgroup_name = bpy.props.PointerProperty(type = PROJ_PGT_settings)
@@ -67,6 +69,7 @@ def unregister():
     ui.unregister()
     OP_setup_layers.unregister()
     # OP_check_layer_status.unregister()
+    OP_export_to_ae.unregister()
     OP_render_pdf.unregister()
     OP_render_scenes.unregister()
     OP_crop_to_object.unregister()

fn.py

@@ -920,6 +920,14 @@ def has_anim(ob):
     # TODO make a better check (check if there is only one key in each channel, count as not animated)
     return ob.animation_data and ob.animation_data.action
 
+def has_keyframe(ob, attr):
+    anim = ob.animation_data
+    if anim is not None and anim.action is not None:
+        for fcu in anim.action.fcurves:
+            if fcu.data_path == attr:
+                return len(fcu.keyframe_points) > 0
+    return False
+
 def get_gp_box_all_frame_selection(oblist=None, scn=None, cam=None, timeout=40):
     '''
     get points of all selection