Add an exporter for Blender cameras

[libs/gl.git] / blender / io_mspgl / export_camera.py

diff --git a/blender/io_mspgl/export_camera.py b/blender/io_mspgl/export_camera.py
new file mode 100644 (file)
index 0000000..1594423
--- /dev/null
+++ b/blender/io_mspgl/export_camera.py
@@ -0,0 +1,29 @@
+import math
+import mathutils
+
+class CameraExporter:
+       def export_to_file(self, context, out_fn):
+               obj = context.active_object
+
+               resource = self.export_camera(obj)
+
+               with open(out_fn, "w") as out_file:
+                       for s in resource.statements:
+                               s.write_to_file(out_file)
+
+       def export_camera(self, obj):
+               if obj.type!='CAMERA':
+                       raise Exception("Object is not a camera")
+
+               from .datafile import Resource, Statement
+               resource = Resource(obj.name+".camera")
+
+               position = obj.matrix_world*mathutils.Vector((0, 0, 0))
+               resource.statements.append(Statement("position", position[0], position[1], position[2]))
+               look_dir = obj.matrix_world*mathutils.Vector((0, 0, -1, 0))
+               resource.statements.append(Statement("look_direction", look_dir[0], look_dir[1], look_dir[2]))
+               resource.statements.append(Statement("up_direction", 0.0, 0.0, 1.0))
+               resource.statements.append(Statement("field_of_view", obj.data.angle_y*180/math.pi))
+               resource.statements.append(Statement("depth_clip", obj.data.clip_start, obj.data.clip_end))
+
+               return resource