KaijuEngine/kaiju

Scrolling the mouse wheel in the viewport should zoom to cursor position

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#726 opened on Apr 28, 2026

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Description

Currently the zoom is along the view forward axis. This change will make it so that when zooming, it uses the projected mouse cursor position's vector.

Contributor guide

Research direction
Examine the current zoom implementation in the camera/viewport code, then modify it to project the mouse cursor position onto a 3D point and zoom towards that point.
Tech stack
go
Domain
game dev
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go3D Math
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60