doc: add graphic effects documentation

[jdrueckert]

To preview the docs, you can either use the docsify CLI tool or just run a static server on the docs folder.

For the following, the effect is clearly visible in the screenshots:

• animate water
• film grain (might need a bit of zoom-in)
• fog
• light shafts
• outline (might need a bit of zoom-in)
• SSAO
• volumetric fog
• water reflections

For the following I think mainly the chosen location for the screenshot is not ideal:

• animate grass
• cloud shadows
• shadows

For the following I don't think the effect still works as intended:

• bloom (not sure if cloud or actual effect in the screenshot?)
• blur
• clamp lighting (is this only expected to have an effect in combination with other effects?)
• extra lighting
• parallax mapping
• vignette

[jdrueckert]

These are the current presets:

Minimal

  "rendering": {
    "chunkLods": 0.0,
    "flickeringLight": false,
    "animateGrass": true,
    "animateWater": false,
    "blurIntensity": 0,
    "reflectiveWater": false,
    "vignette": false,
    "ssao": false,
    "filmGrain": false,
    "outline": false,
    "lightShafts": false,
    "bloom": false,
    "dynamicShadows": false,
    "shadowMapResolution": 4096,
    "normalMapping": false,
    "parallaxMapping": false,
    "dynamicShadowsPcfFiltering": false,
    "cloudShadows": false,
    "inscattering": false,
    "localReflections": false,
    "clampLighting": false,
    "volumetricFog": false
  }

Low

  "rendering": {
    "chunkLods": 0.0,
    "flickeringLight": true,
    "animateGrass": true,
    "animateWater": false,
    "blurIntensity": 0,
    "reflectiveWater": false,
    "vignette": true,
    "ssao": false,
    "filmGrain": true,
    "outline": false,
    "lightShafts": false,
    "bloom": false,
    "dynamicShadows": false,
    "shadowMapResolution": 4096,
    "normalMapping": true,
    "parallaxMapping": false,
    "dynamicShadowsPcfFiltering": false,
    "cloudShadows": false,
    "inscattering": false,
    "localReflections": false,
    "clampLighting": false,
    "volumetricFog": false
  }

Medium

  "rendering": {
    "chunkLods": 0.0,
    "flickeringLight": true,
    "animateGrass": true,
    "animateWater": false,
    "blurIntensity": 0,
    "reflectiveWater": false,
    "vignette": true,
    "ssao": false,
    "filmGrain": true,
    "outline": false,
    "lightShafts": false,
    "bloom": true,
    "dynamicShadows": false,
    "shadowMapResolution": 4096,
    "normalMapping": true,
    "parallaxMapping": false,
    "dynamicShadowsPcfFiltering": false,
    "cloudShadows": false,
    "inscattering": false,
    "localReflections": false,
    "clampLighting": false,
    "volumetricFog": false
  }

High

  "rendering": {
    "chunkLods": 0.0,
    "flickeringLight": true,
    "animateGrass": true,
    "animateWater": false,
    "blurIntensity": 0,
    "reflectiveWater": false,
    "vignette": true,
    "ssao": false,
    "filmGrain": true,
    "outline": false,
    "lightShafts": true,
    "bloom": true,
    "dynamicShadows": false,
    "shadowMapResolution": 4096,
    "normalMapping": true,
    "parallaxMapping": false,
    "dynamicShadowsPcfFiltering": false,
    "cloudShadows": true,
    "inscattering": false,
    "localReflections": false,
    "clampLighting": false,
    "volumetricFog": false
  }

Ultra

  "rendering": {
    "chunkLods": 0.0,
    "flickeringLight": true,
    "animateGrass": true,
    "animateWater": false,
    "blurIntensity": 0,
    "reflectiveWater": false,
    "vignette": true,
    "ssao": true,
    "filmGrain": true,
    "outline": false,
    "lightShafts": true,
    "bloom": true,
    "dynamicShadows": false,
    "shadowMapResolution": 4096,
    "normalMapping": true,
    "parallaxMapping": false,
    "dynamicShadowsPcfFiltering": false,
    "cloudShadows": true,
    "inscattering": false,
    "localReflections": false,
    "clampLighting": false,
    "volumetricFog": false
  }

[jdrueckert]

In-Game Rendering Feature Tests