Errors log into console when moving diagonally and with CPU/GPU performance on minimum

[jChicote]

Expected Behaviour

• Moving character throughout a terrain map will scroll the chunks and update positions without error.
• Perform with performance of expected 40 - 60 fps

Current Behaviour

• Performance around 50fps
• Moving diagonally produces mesh error (mesh has no valid data)
• Performance is acceptable
• Chunks will not render then pop in after player hovers close to those chunks.

Possible Solutions

• Modify chunk iteration to instead iterate through a second smaller draw distance (thus ingnoring a majority of chunks that don't need to be iterated).
• (possible) Instead of minimum level of detail add a constant m_ConstantMiniLevelOfDetail to generate mesh at the lowest non divisible detail allowable.
• On iteration update ... await all chunks to complete rendering before performing the next update.
• Cull rendering and processing of chunks not in view (for future sprints)
• Introduce a maximum render distance.