1a96d820fd
<img width="1392" alt="image" src="https://user-images.githubusercontent.com/418473/203873533-44c029af-13b7-4740-8ea3-af96bd5867c9.png"> <img width="1392" alt="image" src="https://user-images.githubusercontent.com/418473/203873549-36be7a23-b341-42a2-8a9f-ceea8ac7a2b8.png"> # Objective - Add support for the “classic” distance fog effect, as well as a more advanced atmospheric fog effect. ## Solution This PR: - Introduces a new `FogSettings` component that controls distance fog per-camera. - Adds support for three widely used “traditional” fog falloff modes: `Linear`, `Exponential` and `ExponentialSquared`, as well as a more advanced `Atmospheric` fog; - Adds support for directional light influence over fog color; - Extracts fog via `ExtractComponent`, then uses a prepare system that sets up a new dynamic uniform struct (`Fog`), similar to other mesh view types; - Renders fog in PBR material shader, as a final adjustment to the `output_color`, after PBR is computed (but before tone mapping); - Adds a new `StandardMaterial` flag to enable fog; (`fog_enabled`) - Adds convenience methods for easier artistic control when creating non-linear fog types; - Adds documentation around fog. --- ## Changelog ### Added - Added support for distance-based fog effects for PBR materials, controllable per-camera via the new `FogSettings` component; - Added `FogFalloff` enum for selecting between three widely used “traditional” fog falloff modes: `Linear`, `Exponential` and `ExponentialSquared`, as well as a more advanced `Atmospheric` fog;
144 lines
3.3 KiB
JSON
144 lines
3.3 KiB
JSON
{
|
|
"asset" : {
|
|
"generator" : "Khronos glTF Blender I/O v3.3.17",
|
|
"version" : "2.0"
|
|
},
|
|
"extensionsUsed" : [
|
|
"KHR_materials_specular",
|
|
"KHR_materials_ior"
|
|
],
|
|
"scene" : 0,
|
|
"scenes" : [
|
|
{
|
|
"name" : "Scene",
|
|
"nodes" : [
|
|
0,
|
|
1
|
|
]
|
|
}
|
|
],
|
|
"nodes" : [
|
|
{
|
|
"mesh" : 0,
|
|
"name" : "Grid"
|
|
},
|
|
{
|
|
"mesh" : 0,
|
|
"name" : "Grid.001",
|
|
"translation" : [
|
|
0.0018983177142217755,
|
|
-2.7217100068810396e-05,
|
|
0.0012765892315655947
|
|
]
|
|
}
|
|
],
|
|
"materials" : [
|
|
{
|
|
"doubleSided" : true,
|
|
"extensions" : {
|
|
"KHR_materials_specular" : {
|
|
"specularColorFactor" : [
|
|
0,
|
|
0,
|
|
0
|
|
]
|
|
},
|
|
"KHR_materials_ior" : {
|
|
"ior" : 1.4500000476837158
|
|
}
|
|
},
|
|
"name" : "Material.001",
|
|
"pbrMetallicRoughness" : {
|
|
"baseColorFactor" : [
|
|
0.12338346652686596,
|
|
0.35653680562973022,
|
|
0.065849664583802223,
|
|
1
|
|
],
|
|
"metallicFactor" : 0,
|
|
"roughnessFactor" : 0.9980237483978271
|
|
}
|
|
}
|
|
],
|
|
"meshes" : [
|
|
{
|
|
"name" : "Grid",
|
|
"primitives" : [
|
|
{
|
|
"attributes" : {
|
|
"POSITION" : 0,
|
|
"NORMAL" : 1,
|
|
"TEXCOORD_0" : 2
|
|
},
|
|
"indices" : 3,
|
|
"material" : 0
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"accessors" : [
|
|
{
|
|
"bufferView" : 0,
|
|
"componentType" : 5126,
|
|
"count" : 6561,
|
|
"max" : [
|
|
1.0000003576278687,
|
|
0.2493455857038498,
|
|
1.0051095485687256
|
|
],
|
|
"min" : [
|
|
-1.0000003576278687,
|
|
-0.08555418252944946,
|
|
-1.0000003576278687
|
|
],
|
|
"type" : "VEC3"
|
|
},
|
|
{
|
|
"bufferView" : 1,
|
|
"componentType" : 5126,
|
|
"count" : 6561,
|
|
"type" : "VEC3"
|
|
},
|
|
{
|
|
"bufferView" : 2,
|
|
"componentType" : 5126,
|
|
"count" : 6561,
|
|
"type" : "VEC2"
|
|
},
|
|
{
|
|
"bufferView" : 3,
|
|
"componentType" : 5123,
|
|
"count" : 38400,
|
|
"type" : "SCALAR"
|
|
}
|
|
],
|
|
"bufferViews" : [
|
|
{
|
|
"buffer" : 0,
|
|
"byteLength" : 78732,
|
|
"byteOffset" : 0
|
|
},
|
|
{
|
|
"buffer" : 0,
|
|
"byteLength" : 78732,
|
|
"byteOffset" : 78732
|
|
},
|
|
{
|
|
"buffer" : 0,
|
|
"byteLength" : 52488,
|
|
"byteOffset" : 157464
|
|
},
|
|
{
|
|
"buffer" : 0,
|
|
"byteLength" : 76800,
|
|
"byteOffset" : 209952
|
|
}
|
|
],
|
|
"buffers" : [
|
|
{
|
|
"byteLength" : 286752,
|
|
"uri" : "Mountains.bin"
|
|
}
|
|
]
|
|
}
|