Default environment properties for the entire scene (post-processing effects, lighting and background settings). The [WorldEnvironment3D] node is used to configure the default [Environment3D] for the scene. The parameters defined in the [WorldEnvironment3D] can be overridden by an [Environment3D] node set on the current [Camera]. Additionally, only one [WorldEnvironment3D] may be instanced in a given scene at a time. The [WorldEnvironment3D] allows the user to specify default lighting parameters (e.g. ambient lighting), various post-processing effects (e.g. SSAO, DOF, Tonemapping), and how to draw the background (e.g. solid color, skybox). Usually, these are added in order to improve the realism/color balance of the scene. $DOCS_URL/03_usage/03_3d/09_environment_and_post_processing.md $DOCS_URL/07_demo_projects/3d/material_testers $DOCS_URL/07_demo_projects/2d/hdr The [Environment3D] resource used by this [WorldEnvironment3D], defining the default properties.