Defining Cameras

Overview

Camera data are defined as <Camera> tags below the <Cameras> tag. Where there are multiple sets of camera data, there are multiple <Camera> tags below the <Cameras> tag. Each <Camera> tag has data for the camera's SRT information, orientation control type and projection type.

Camera SRT Information

This stores information about the camera's position, rotation and scaling.

<NintendoWareIntermediateFile>

  <GraphicsContentCtr>

    <Cameras>

      <Camera>

        <Transform>

Camera Position Control Type

NW4C provides the following three types of control of camera orientation:

Rotate Camera <RotateViewUpdater>

In this type of camera, orientation is controlled using the camera's SRT parameter.

<NintendoWareIntermediateFile>

  <GraphicsContentCtr>

    <Cameras>

      <Camera>

        <RotateViewUpdater>

Aim Camera <RotateViewUpdater>

In this type of camera, orientation is controlled using the camera's position, viewpoint and Twist parameter. With the viewpoint from the position of the camera, the orientation of the camera is determined by rotating it by the amount specified in the Twist parameter along the view vector.

<NintendoWareIntermediateFile>

  <GraphicsContentCtr>

    <Cameras>

      <Camera>

        <AimTargetViewUpdater>

LookAt Camera <LookAtTargetViewUpdater>

In this type of camera, orientation is controlled using the camera's position, viewpoint and Up vector. With the viewpoint from the position of the camera, the orientation of the camera is determined by calculating the remaining one axis from the cross product of the normal vector and the specified Up vector.

<NintendoWareIntermediateFile>

  <GraphicsContentCtr>

    <Cameras>

      <Camera>

        <LookAtTargetViewUpdater>

Projection Type

There are two projection types:

Perspective Projection <PerspectiveProjectionUpdater>

<NintendoWareIntermediateFile>

  <GraphicsContentCtr>

    <Cameras>

      <Camera>

        <PerspectiveProjectionUpdater>

Parallel Projection <OrthoProjectionUpdater>

<NintendoWareIntermediateFile>

  <GraphicsContentCtr>

    <Cameras>

      <Camera>

        <OrthoProjectionUpdater>

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