EyeOfProvidence

Eye of Providence

An Ultrakill mod inspired by the Quake mod Blinky that lets you use various projection methods to modify how you perceive your environment.

What does that mean?

Most modern games use what's called a Rectiliniar projection to render 3D objects to the screen. While it's simplier for computers to calculate and preserves straight lines, as the field of vision approaches 180 degrees the scene developes severe distortion.

Rectiliniar 170 FoV:

This mod provides alternative projection methods to choose from, each with their own unique benifits and trade-offs. All provided projections are capable of rendering beyond 180 degrees and most render the full 360 degrees of vision.

Panini 170 FoV:

How does it work?

Instead of rendering from the camera directly to the screen, multiple cameras are used to construct a globe of pixels that all projections can pull from to construct their scene. A visualization of this can be enabled in Misc Settings.

You can choose from a variety of unique projections such as...

Equidistant Fisheye:

Hammer Projection:

Equirectangular Projection:

and more!

Known Issues

• Blood/Gasoline/Portals/Radiant Effect will not show up in projections.
• As of update 17d4, fov is capped to 180 when looking in the direction of a portal.
• The fraud theater skybox does not render properly on all globe planes.
• At the moment, VolumetricSkyboxes conflicts with this mod.

Changelog

• 0.8.0
• The quality of individual planes can now be manually set. (the size of a globe plane's texture is 2^quality by 2^quality)
• Increased max quality from 10 to 11.
• Quality is now a slider value.
• Fixed issue with globe camera being slightly tilted.
• 0.7.0
• Added the Mercator projection.
• Added the Bonne projection (blend between Sinusoidal and Werner projection).
• Added the American Polyconic projection.
• Added the Orthographic Globe projection.
• Fisheye has options for both equaldistant and equal-area projections.
• Fixed Winkel Tripel proportions.
• The map view now uses Tissot's indicatrix to help visualize projection distortion.
• Adjusted default settings of some projections.
• 0.6.1
• Fixed Grid/Map hotkeys activating when mod is disabled.
• 0.6.0
• Added the Pierce Quincuncial projection.
• Added option for projections to effect the viewmodel.
• 0.5.1
• Increased default skybox refresh rate.
• 0.5.0
• Added an option to render limbo/fraud-space skyboxes in globe settings.
• More organized configuration options.
• Equirectangular projection now has dynamic black bars depending of FOV.
• 0.4.0
• Added an option to change the shape of the projection globe. Can help with performance by reducing the number of planes needed to render a full globe.
• Added the Winkel Tripel projection.
• 0.3.1
• Camera now zooms when dashing and zooming with terminal or railcannon. This is togglable in settings.
• Fixed Fisheye fit setting.
• Tweaked Panini projection's default settings.
• Slight optimizations.
• 0.3.0
• The fov's of projections can now be changed independently of one another.
• Panini projection now affected by fov.
• Stereographic projection now affected by fov.
• Projection globe can now be rotated.
• Sides of projection globe can be disabled, which can help with performance.
• 0.2.2
• Added keybindings for all perspectives.
• 0.2.1
• Made hammer projection mathmatically accurate.
• Hammer projection now affected by fov.
• 0.2.0
• Re-initial release.