Logarithmic camera

[dominik-zeglen]

This PR introduces logarithmic depth buffer, allowing usage of astronomic distances and background meshes without frustum tricks and cheats in vertex shaders.

[Copilot]

Pull Request Overview

This PR introduces a logarithmic depth buffer to support astronomic distances and more robust background mesh rendering without relying on vertex shader hacks. Key changes include updates to the shader code (adding vFragDepth and recalculating gl_FragDepth), migration of legacy shader imports to a new PBR-based shader, and adjustments to camera parameters and scene scaling in several engine and builder modules.

Reviewed Changes

Copilot reviewed 20 out of 61 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
ogl-engine/materials/asteroidDust/shader.vert.glsl	Added vFragDepth output and a modified depth computation in the vertex shader for logarithmic depth support.
ogl-engine/materials/asteroidDust/shader.frag.glsl	Updated fragment shader to compute gl_FragDepth using logarithmic depth.
ogl-engine/materials/AsteroidRock/*	Removal of legacy asteroid rock shaders and update of shader import to use new PBR shader.
ogl-engine/materials/AsteroidNew/*	Removal of legacy new asteroid shaders and update of shader import to use new PBR shader.
ogl-engine/engine/engine3d.ts	Introduced a new uniform for camera scale to support logarithmic depth functionality.
ogl-engine/builders/Star.ts & Asteroids.ts	Adjusted distance and scale parameters to extend the usable range consistent with logarithmic depth.
ogl-engine/MapControl.ts	Increased min/max distance settings and removed near plane update logic to support larger viewing distances.
devtools/* & core/settings.ts	Updated UI layout/styling and camera near/far settings to align with the new depth buffer configuration.

Comments suppressed due to low confidence (3)

ogl-engine/materials/asteroidDust/shader.vert.glsl:28

• Consider adding a comment explaining why 1.f is added to gl_Position.w for the logarithmic depth computation to clarify the intent for future maintainers.

    vFragDepth = 1.f + gl_Position.w;

ogl-engine/engine/engine3d.ts:52

• Ensure that the camera.scale uniform is updated dynamically during runtime if the camera's zoom or scaling factors change, so that the logarithmic depth computations remain valid.

        scale: { value: number };

core/settings.ts:7

• Verify that lowering the near plane from 1e-1 to 1e-2 works as expected with the logarithmic depth buffer, ensuring that potential z-fighting issues are mitigated.

    near: 1e-2,