General purpose model viewer

Related tags

Graphics demoscene graphics 3d
Overview

Foxotron

GitHub Workflow Status

ASSIMP based general purpose model viewer ("turntable") created for the Revision 2021 3D Graphics Competition

image

Usage

Check the wiki for information on how to use it.

Keyboard shortcuts

  • F11: Toggle menu
  • F: Refocus camera on mesh
  • W: Toggle wireframe / edged faces
  • C: Toggle auto camera
  • PgUp / PgDn: Cycle through shaders
  • Alt-F4: Enter hyberwormtunnel

Mouse operations

  • Left click & drag: Rotate camera
  • Right click & drag: Rotate light / skybox
  • Middle click & drag: Pan camera

Requirements

OpenGL 4.1 is required.

Building

You're gonna need CMAKE

Credits

Libraries and other included software

These software are available under their respective licenses.

The remainder of this project code was (mostly) written by Gargaj / Conspiracy and is public domain; PBR lighting shaders by cce / Peisik. Large portions of the code were cannibalized from Bonzomatic.

Textures and cube maps

All HDR textures are courtesy of the HDRLabs sIBL archive.

Comments
  • Translucency support

    Translucency support

    You want to ignore resource.rc changes, and possibly you don't want the changes from 6ff7230. Most risky change is the emissive & alpha reading code, only tested with Maya fbx exports at this point.

    opened by trevorvanhoof 2
  • PBR quality fixes

    PBR quality fixes

    • Fix sometimes black speculars by clamping BRDF LUT lookup (turns out its first column is all zeros...)
    • clean up skybox sampling (had Y-axis flips that weren't necessary)
    • tweak diffuse ambient's magic constants for a less shiny look
    opened by seece 1
  • Read sun position from an IBL file

    Read sun position from an IBL file

    Skysphere's rotation is now relative to light direction so that the sun (lights[0]) always shines from (lightYaw, lightPitch) direction. Changing the pitch won't change the skyboxes orientation, just like it was before.

    opened by seece 0
  • Blurry skyboxes

    Blurry skyboxes

    • blurry skyboxes
    • dither with noise (both sky and model)
    • read the blurry irradiance texture also in specgloss shader

    image

    image

    Left: no diffuse ambient, right: with diffuse ambient read from irradiance map

    opened by seece 0
  • Create a better system for color maps

    Create a better system for color maps

    Allow importing of color-or-texture values and sending them to the shader, something like struct map { bool isColor; texture2D texture; vec4 color; } and get(map,uv) { return map.isColor ? texture(map.texture,uv) : map.color; }

    opened by Gargaj 0
  • Quality fixes

    Quality fixes

    • Compute view vector in vertex shader
    • Increase roughness if normal map was minified (its LOD was > 0) and had variation (normalmap vector length < 1.0)

    Here's how the variation hack works: normal_variation_to_roughness

    There's a "proper" way to do it via VMF lobes https://graphicrants.blogspot.com/2018/05/normal-map-filtering-using-vmf-part-3.html but it's still not 100% correct for GGX normal distribution function so it may not look better anyway.

    opened by seece 0
  • Diffuse IBL

    Diffuse IBL

    spheres

    Load irradiance maps (called "Env" in the HDR Labs nomenclature) and samples them in pbr.fs. If no map is present a blurred skybox is used which looks pretty much the same.

    opened by seece 0
  • Add two more lights

    Add two more lights

    image

    Directions and colors are hard coded right now in a rough "key & fill & back" formation.

    Only the first light is used in the specgloss shader since it would be too bright otherwise.

    opened by seece 0
  • more keyboard shortcuts

    more keyboard shortcuts

    • [ ] alt-enter to switch fullscreen/windowed
    • [x] switching from physical based to non physical based
    • [x] wireframe on and off
    • [x] idle animation on and off.
    • [ ] hide cursor when you use F11 to hide menu
    opened by Gargaj 1
Releases(2022-11-02)
Owner
Polyurethane audio breeder / semi-organic code regurgitation trooper.
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