ZEROES07 at 13:36, 25 April 2026

2026-04-25T13:36:56Z

← Older revision		Revision as of 13:36, 25 April 2026
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	File:Grass_nonpbr.webp\|Grass from Sonic The Hedgehog (2006) rendered in Blender		File:Grass_nonpbr.webp\|Grass from Sonic The Hedgehog (2006) rendered in Blender
	File:Grass_pbr.webp\|Grass from Shadow Generations rendered in Blender		File:Grass_pbr.webp\|Grass from Shadow Generations rendered in Blender
	</gallery>In the Hedgehog Engine 2 games, PBR properties can be altered either by [[Rendering/PBR/Parameter Maps\|Parameter Maps]] (_prm) when the shader supports it (has the letter "p" in its name) or through the "PBRFactor" parameter in the surface's material if the shader being used doesn't support Parameter maps. '''The layout of these Parameter maps varies depending on the game and the shader.'''		</gallery>In the Hedgehog Engine 2 games, PBR properties can be altered either by [[Rendering/HE2/PBR/Parameter Maps\|Parameter Maps]] (_prm) when the shader supports it (has the letter "p" in its name) or through the "PBRFactor" parameter in the surface's material if the shader being used doesn't support Parameter maps. '''The layout of these Parameter maps varies depending on the game and the shader.'''

ZEROES07: Moved PBR page

2026-04-25T13:32:57Z

Moved PBR page

New page

=== These principles only apply to Hedgehog Engine 2 games (''Mario & Sonic at the Rio 2016 Olympic Games'' and onward) ===

PBR (Physically Based Rendering) refers to the current approach to 3D graphics material rendering used in most modern games. Its goal is to enhance the realism of surfaces by reflecting and refracting light more accurately than previous techniques. This is most noticeable in any kind of metallic surface:
[[File:Metal_pbr_example.webp|center|thumb|200x200px|Example of a metallic sphere in PBR rendering]]

PBR rendering tends to not make use of Diffuse maps and Specular Color Maps that were very common in non-PBR rendering. Instead, the primary texture maps it uses in their place are: Albedo Maps, Metallic Maps, Roughness Maps and Ambient Occlusion Maps.

Albedo Maps differ from Diffuse Maps by generally not containing any kind of depth or lighting information.<gallery widths="300" heights="300">
File:Kdv_earth03_dfxx_k.webp|Diffuse texture example
File:W03_kdv_earth03_dfxx_k_ih1_abd.webp|Albedo texture example
</gallery>Metallic Maps contain values ranging from 0-1(black-white). 0 determines a non-metallic surface while 1 determines a metallic surface. Values in between can and are used for stylistic and/or artistic purposes.
[[File:Metallic.webp|center|thumb|150x150px|Metallic texture example]]

Roughness Maps change how the surface reflects light by making the reflection sharper using a value of 0 (smoother surface) or blurrier/more diffuse using a value of 1 (rough surface). This more or less equals the inverse of typical Gloss Maps used in non-PBR rendering.
[[File:Roughness.webp|center|thumb|150x150px|Roughness texture example]]

Ambient Occlusion Maps determine what areas of the surface should occlude more light when not directly illuminated. 0 represents the most light occlusion and 1 represents no light occlusion.
[[File:Ambient_occlusion.webp|center|thumb|150x150px|Ambient occlusion texture example]]

non-PBR vs PBR rendering (same lighting conditions):<gallery widths="300" heights="300">
File:Grass_nonpbr.webp|Grass from Sonic The Hedgehog (2006) rendered in Blender
File:Grass_pbr.webp|Grass from Shadow Generations rendered in Blender
</gallery>In the Hedgehog Engine 2 games, PBR properties can be altered either by [[Rendering/PBR/Parameter Maps|Parameter Maps]] (_prm) when the shader supports it (has the letter "p" in its name) or through the "PBRFactor" parameter in the surface's material if the shader being used doesn't support Parameter maps. '''The layout of these Parameter maps varies depending on the game and the shader.'''

All textures/maps used to create the final rendered image:<gallery widths="140" heights="140">
File:Ark_platform_albedo.webp|Albedo maps
File:Ark_platform_normal_b.webp|Normal maps
File:Ark_platform_parameter.webp|Parameter maps
File:Ark_platform_emission.webp|Emission maps
</gallery>Final rendered image with added lighting:
[[File:Ark_platform.webp|center|thumb|250x250px]]

Rendering/HE2/PBR - Revision history

ZEROES07 at 13:36, 25 April 2026

ZEROES07: Moved PBR page