Transformation Pipeline

[fesoliveira014]

Manipulating 2D and 3D objects require us to do several transformations. A transformation pipeline should help to calculate and manipulate the object model matrix in a sane and intuitive way. Quaternions should be used for rotations in order to avoid Gimbal lock and to speed up the operations.

Since in the future the engine will support keyframe animation and other techniques, dual quaternions should also be supported in these pipelines.

Resources:

• A Begginer's Guide to Dual-Quaternions
• Math World - Quaternions
• Wikipedia - Quaternion Rotations

[fesoliveira014]

Scene management in place using quaternions. Scene nodes are not yet specialized for rendering, only specialization present so far is for camera.

New scene node specialization that are needed, in order of importance:

• mesh node
• model node
• light node
• particle emitter node
• compute node (for compute stuff)
• joint node (when animation becomes a thing)

[fesoliveira014]

Scene Management and scene graph were added as of commit ccb0df4. Scene management still needs work, but transformation pipeline is functional. Closing task