This struct holds configuration values to be passed as uniforms to the PBR shader. These values are beyond what the material data can provide, are user provided, and can control, for example, light balance between direct and IBL lighting, or the intensity of the direct light.
gfx:: PbrDrawable:: PBRShaderConfig:: directLightingIntensity
Control the direct lighting intensity.
gfx:: PbrDrawable:: PBRShaderConfig:: tonemapExposure
Controls the exposure level for the tonemapping function. Only used if tonemapping is enabled.