搅拌机2.7如何找到聚光灯看/使用脚本目标

Question

我很难搞清楚如何找到聚光灯看/目标点。我需要它将一些光信息导出到一个文件中，以便我可以将它们用于OpenGL并渲染场景。

到目前为止，有这样的代码

with open(bpy.path.abspath("//Taest.txt"), "w", encoding="utf8", newline="\n") as f: 
     fw = f.write 
     #fw("testing file write") 
     #for ob in bpy.context.scene.objects: 
     for ob in bpy.data.objects: 
      if ob.type == "LAMP" : 
       la = ob.data 

       fw(la.type + " " + la.name + "\n") 
       fw(vec3ToStr(ob.location) + "\n") 
       fw(colorToStr(la.color) + "\n") 
       fw(str(la.energy) + "\n") 

       #if la.type == "AREA" : 
       # print("\tAREA " + la.name) 

       if la.type == "POINT" : 
        fw(str(la.distance) + "\n") 
        fw(str(la.quadratic_attenuation) + "\n") 
        fw(str(la.linear_attenuation) + "\n") 


       if la.type == "SPOT" : 
        fw(str(la.distance) + "\n") 
        fw(str(la.quadratic_attenuation) + "\n") 
        fw(str(la.linear_attenuation) + "\n") 
        fw(str(la.spot_size) + "\n") 
        #empty = bpy.data.meshes.ne(type='PLAIN_AXES') 
        me = bpy.data.meshes.new("test Mesh") 
        obn = bpy.data.objects.new("test Obj" , me) 
        scn = bpy.context.scene 
        scn.objects.link(obn) 
        obn.location = ob.location #ob.shadow_buffer_clip_end <<< this is where i have trouble figuring out what to do ?? 
        fw(vec3ToStr(me .location) + "\n") 
        obn.delete() 

解决

mat = ob.matrix_world 
      end = mat * Vector((0, 0, -la.shadow_buffer_clip_end)) 
      fw(vec3ToStr(end) + "\n") 

Answer 1

解决

mat = ob.matrix_world 
      end = mat * Vector((0, 0, -la.shadow_buffer_clip_end)) 
      fw(vec3ToStr(end) + "\n") 

它也同样为相机的lookAt如果万一你需要

mat = ob.matrix_world 
     end = mat * Vector((0, 0, -la.shadow_buffer_clip_end)) 
     fw(vec3ToStr(end) + "\n")