XB PointStream/specs

XB PointStream must be a general purpose tool for rendering 3D images composed of
point cloud data any WebGL browser.

1. Needs to render a 3D image quickly in any WebGL browser
2. Must support camera manipulation
3. Needs to support some of the following HTML parameters:

(This still needs to be discussed)

CR = cloud renderer (general app)

• FrontImageURL
• FrameImageURL (what is this?)
• BackgroundImageURL
• DataEmbedded (?)
• BackgroundImageAsTile
• PixelSize

• ShadowOn
• EnableAntialiasing
• AnimationPathURL
• ZoomingLevel
• PlayerBkColor
• BoundingBoxRatio (?)
• ImageRenderingQuality
• StereoOn

• DataURL (CR)
• CameraMode (CR)
• CameraPosition (CR)
• MouseMode (CR)
• EnableBkTransparency (CR)
• TransparencyOn (CR)
• EnableBackfaceCull (CR)

(will be in CR)

• Light1On
• Light1CoordSys
• Light1Azimuth
• Light1Elevation
• Light1AmbientColor
• Light1AmbientIntensity
• Light1DiffuseColor
• Light1DiffuseIntensity
• Light1SpecularColor
• Light1SpecularIntensity

(will be in CR)

• MaterialLightOn
• MaterialShininess
• MaterialAmbientColor
• MaterialDiffuseColor
• MaterialSpecularColor

To discuss:

• What file formats should be supported? ASC, PSI, DAE, ZAE, ...

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"CR" specs

Rendering

• Draw multiple point clouds
• Set point cloud transparency (0-1)
• Toggle backface culling

• Get/Set frameRate
• Get frameCount

• Set background color (0-1) and transparency

• Toggle looping
• Toggle bounding box

Lighting

• Set material
• Set Light

File

• Load multiple PSI files (Data URL)
• Toggle streaming
• Get file status and progress
• Auto-center option

Transformation

• Set rotation
• Set translation
• Set scale (uniform & non-uniform)

View

• Set canvas size
• Set projection(perspective, orthographic, user-defined)
• Set camera
• Switch between cameras
• Fit object to viewport

Input

• Mouse wheel
• Mouse cursor
• Keyboard

Misc

• Take screenshot

?

• User-defined shaders
• LOD (if 1/2 million points render fine on MBP, do we need this?)