Scene Format - v1
Table of Contents
This scene format is intended to be used to define scenes for rendering as a part of a
computer graphics course.
We use
protobuf to define files schema (
see it on GitHub).
Protobuf schema is a single source of truth and it is used to generate io libraries and this document.
Data is stored as json in files with
.cowscene extension (binary mode is also supported).
Structure
The top-level structure of this file is Scene. All scene objects are listed there.
Note that fields marked with "Required to implement? No" mean fields and features which are not required to be implemented as a part of the course. These fields are added for fun and experimentation purposes only.
Usage & example
Please see the example of the demo scene defined in this format (example for binary is available in our github repo). To read or write such files we provide libraries for a number of languages. These libraries support both json and binary as inputs.
It is strongly advised to use libraries we provide instead of implementing your own parser. That is because our libraries implement additional pre/postprocessing steps when reading/writing the file.
Supported languages
Other languages
Please let us know if we missed some language you use. You can also build library yourself using protoc, as described in protobuf docs.
Problems? Contributions?
If you have any suggestions or would like to submit a patch, feel free to create a pull request against the scene format repo or
create an issue.
Also, feel free to contact anyone from the scene format team if you have any questions or issues:
@nikitavbv, @Brookokoko, @metamodern, @TheBestTvarynka, @grizik.
Representation of blend material
| Field |
Type |
Default value |
Required to implement? |
Description |
| diffuse |
Color |
|
yes
|
|
| specular |
Color |
|
yes
|
|
| roughness |
double |
0.5
|
yes
|
|
Representation of camera
Camera can be transformed as any other point is space using transformation matrix
and camera viewport is located along negative z-axis
For more detailed explanation follow link
| Field |
Type |
Default value |
Required to implement? |
Description |
| id |
int32 |
|
yes
|
Object id in scene.
Should be equal or greater than 1.
Should be unique across all Camera, Light and SceneObject
|
| transform |
Transform |
|
yes
|
|
camera (one of) |
perspective |
PerspectiveCamera |
|
yes
|
|
| orthographic |
OrthographicCamera |
|
no
|
|
| realistic |
RealisticCamera |
|
no
|
|
Representation of RGB colors.
Components should be greater or equal 0. No upper bound
(0, 0, 0) - white
(1, 1, 1) - black
All values greater than 1 should be mapped to range [0, 1] by using gamma correction or just clamping values
| Field |
Type |
Default value |
Required to implement? |
Description |
| r |
double |
|
yes
|
|
| g |
double |
|
yes
|
|
| b |
double |
|
yes
|
|
Representation of cube (rectangular parallelepiped, to be precise.)
To determine the position of a cube look at Transform.position
Transform.scale should be ignored
If your renderer supports only axis aligned box Transform.rotation should be ignored
For more detailed explanation about aabb follow link
For those who dare to support oriented bounding box here link how obb is implemented in opengl
| Field |
Type |
Default value |
Required to implement? |
Description |
| size |
Vector3 |
(1, 1, 1)
|
yes
|
Size of cube in each dimension (in other words, you can view vector components as the length of parallelepiped sides)
|
Custom properties can be used to extend format in ways specific to implementation.
Please consider opening a PR/issue in format repo if you think your property would better be a regular field.
| Field |
Type |
Default value |
Required to implement? |
Description |
| key |
string |
|
yes
|
|
value (one of) |
text_value |
string |
|
yes
|
|
| int32_value |
int32 |
|
yes
|
|
Representation of disk - surface defined by point and normal with limited radius
To determine the position of a disk look at Transform.position
To determine the normal of a disk look at Transform.up
For more detailed explanation follow link
| Field |
Type |
Default value |
Required to implement? |
Description |
| radius |
double |
1
|
yes
|
Radius of disk
|
Faces are defined using lists of vertex and normal indices.
| Field |
Type |
Default value |
Required to implement? |
Description |
| elements |
FaceElement, repeated |
|
yes
|
|
| Field |
Type |
Default value |
Required to implement? |
Description |
| vertex_index |
int32 |
|
yes
|
|
| normal_index |
int32 |
|
yes
|
|
| texture_index |
int32 |
|
yes
|
|
Representation of fresnel material
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| eta |
double |
1.5
|
no
|
|
| r |
double |
1
|
yes
|
Amount of reflection
|
| t |
double |
1
|
yes
|
Amount of transmission
|
Representation of Lambert material
This material reflects light in all directions with equal probability
For more detailed explanation follow link
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| r |
double |
1
|
yes
|
Amount of reflection
|
Representation of light
| Field |
Type |
Default value |
Required to implement? |
Description |
| id |
int32 |
|
yes
|
Object id in scene.
Should be equal or greater than 1.
Should be unique across all Camera, Light and SceneObject
|
| transform |
Transform |
|
yes
|
|
| color |
Color |
(1, 1, 1)
|
yes
|
Color of source light
|
light (one of) |
point |
LightPoint |
|
yes
|
|
| directional |
LightDirectional |
|
yes
|
|
| sphere |
LightSphere |
|
no
|
|
| environment |
LightEnvironment |
|
yes
|
|
Representation of directional light
To determine the direction of a light look at Transform.forward
For more detailed explanation follow link
Representation of environment light
No transformation should be applied
Direction is determined randomly
For more detailed explanation follow link
Representation of point light
To determine the position of a light look at Transform.position
For more detailed explanation follow link
In article above this light source is named spherical light but it is actually a point light
Representation of sphere light
| Field |
Type |
Default value |
Required to implement? |
Description |
| radius |
double |
1
|
yes
|
Radius of source light
|
Representation of material
For more detailed explanation follow link
or this link
Embedded obj file. Can be used to create scene files without external dependencies.
See OBJ format description on Wikipedia.
| Field |
Type |
Default value |
Required to implement? |
Description |
| vertices |
Vertex, repeated |
|
yes
|
List of geometric vertices
|
| vertex_normals |
VertexNormal, repeated |
|
yes
|
List of vertex normals; normals might not be unit vectors.
|
| texture_coordinates |
TextureCoordinates, repeated |
|
yes
|
List of texture coordinates.
|
| faces |
Face, repeated |
|
yes
|
Polygonal face element
|
Mesh specified in obj file
| Field |
Type |
Default value |
Required to implement? |
Description |
| reference |
string |
|
yes
|
Reference to obj file.
Absolute or relative path
|
| obj |
MeshGeometry |
|
no
|
Embedded obj file. Can be used to create scene files without external dependencies.
|
Representation of metal material
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| r |
double |
1
|
yes
|
Amount of reflection
|
| eta |
double |
1.5
|
yes
|
|
| k |
double |
1
|
yes
|
Extinction coefficient
|
| roughness |
double |
0.5
|
yes
|
|
Representation of reflection material using microfacet model
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| r |
double |
1
|
yes
|
Amount of reflection
|
| eta |
double |
1.5
|
yes
|
|
| roughness |
double |
0
|
yes
|
|
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| r |
double |
1
|
yes
|
Amount of reflection
|
Representation of diffuse material with Oren-Nayar model
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| r |
double |
1
|
yes
|
Amount of reflection
|
| roughness |
double |
0
|
yes
|
|
Representation of orthographic camera
Representation of perspective camera
| Field |
Type |
Default value |
Required to implement? |
Description |
| fov |
double |
60
|
yes
|
Horizontal field of view
Should be in range (0, 180)
|
Representation of plane - unbound surface defined by point and normal
To determine the position of a plane look at Transform.position
To determine the normal of a plane look at Transform.up
For more detailed explanation follow link
Representation of plastic material
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| r |
double |
1
|
yes
|
Amount of reflection
|
| roughness |
double |
0.5
|
yes
|
|
Representation of realistic camera
| Field |
Type |
Default value |
Required to implement? |
Description |
| fov |
double |
60
|
yes
|
Horizontal field of view
Should be in range (0, 180)
|
| focus |
double |
1
|
yes
|
Focal length
|
| radius |
double |
0.01
|
yes
|
Radius of lens
|
Default options for rendering scene.
Can be overridden in renderer
| Field |
Type |
Default value |
Required to implement? |
Description |
| camera_id |
int32 |
1
|
yes
|
Camera from which scene should be rendered
|
| width |
int32 |
640
|
yes
|
Width of final image
|
| height |
int32 |
320
|
yes
|
Height of final image
|
| rayDepth |
int32 |
3
|
yes
|
Depth of path tracing
|
| raysPerPixelDimension |
int32 |
1
|
yes
|
Number of rays per pixel dimension
|
| custom_properties |
CustomProperty, repeated |
|
no
|
Can be used as a map containing custom properties specific to renderer implementation.
If you are using this field, consider adding it to the format spec as a regular field if you think that
other implementations may benefit from your custom fields.
|
| Field |
Type |
Default value |
Required to implement? |
Description |
| version |
int32 |
|
yes
|
"1" is the only allowed value at the moment.
|
| render_options |
RenderOptions |
|
yes
|
|
| scene_objects |
SceneObject, repeated |
|
yes
|
|
| lights |
Light, repeated |
|
yes
|
|
| cameras |
Camera, repeated |
|
yes
|
|
| materials |
Material, repeated |
|
yes
|
|
Representation of object to render.
A sceneObject is one of the main things of this format. It describes all the required fields to use if you want to render something.
Using this fields you can render a transformed object of any type with applied material.
SceneObject contains:
- id: defines the id which is unique across the scene.
- transform: this part has all data for transformation of the object.
- material: this part contains information about the material, which should be applied to object.
- mesh: this is the object itself.
| Field |
Type |
Default value |
Required to implement? |
Description |
| id |
int32 |
|
yes
|
Object id in scene.
Should be equal or greater than 1.
Should be unique across all Camera, Light and SceneObject
|
| transform |
Transform |
|
yes
|
|
material (one of) |
material_id |
string |
|
yes
|
Reference to a material in the array of materials
|
| material |
Material |
|
yes
|
|
mesh (one of) |
sphere |
Sphere |
|
yes
|
|
| cube |
Cube |
|
yes
|
|
| plane |
Plane |
|
yes
|
|
| disk |
Disk |
|
yes
|
|
| meshed_object |
MeshedObject |
|
yes
|
|
Representation of specular reflection material
This material reflects light strictly in one direction which can be found by reflecting ray direction around normal
For more detailed explanation follow link
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| eta |
double |
1.5
|
no
|
Index of refraction
The index of refraction describes how much more slowly light travels in a particular medium than in a vacuum
Index of refraction for different medium
|
| r |
double |
1
|
yes
|
Amount of reflection
|
Representation of specular transmition material
| Field |
Type |
Default value |
Required to implement? |
Description |
| color |
Color |
|
yes
|
|
| eta |
double |
1.5
|
no
|
Index of refraction
The index of refraction describes how much more slowly light travels in a particular medium than in a vacuum
Index of refraction for different medium
|
| t |
double |
1
|
yes
|
Amount of transmission
|
Representation of sphere
Transform.scale should be ignored
To determine the position of a sphere look at Transform.position
For more detailed explanation follow link
| Field |
Type |
Default value |
Required to implement? |
Description |
| radius |
double |
1
|
yes
|
Radius of sphere
|
| Field |
Type |
Default value |
Required to implement? |
Description |
| u |
double |
|
yes
|
vary between 0 and 1.
|
| v |
double |
0 vary between 0 and 1.
|
yes
|
|
| w |
double |
0 vary between 0 and 1.
|
yes
|
|
Position, rotation and scale of an object
To calculate transformation matrix:
- create translation matrix using position
- create rotation matrix using rotation
- create scale matrix using scale
- multiple 3 matrices to get final matrix
Process using parent is specified below
Right vector can be extracted
from 1st column of the matrix if your renderer uses column-major conversion
from 1st row of the matrix if your renderer uses row-major conversion
Up vector can be extracted
from 2nd column of the matrix if your renderer uses column-major conversion
from 2nd row of the matrix if your renderer uses row-major conversion
Forward vector can be extracted
from 3rd column of the matrix if your renderer uses column-major conversion
from 3rd row of the matrix if your renderer uses row-major conversion
Detailed explanation about matrices
Explanation about different conversions
| Field |
Type |
Default value |
Required to implement? |
Description |
| position |
Vector3 |
(0, 0, 0)
|
yes
|
|
| rotation |
Vector3 |
(0, 0, 0)
|
yes
|
Rotation in euler angles.
Can be negative or positive.
Angles are measured counterclockwise.
|
| scale |
Vector3 |
(1, 1, 1)
|
yes
|
|
| parent_id |
int32 |
0
|
no
|
Id of parent relative to which transformation should be applied.
If parent_id is 0 transformation is specified in world space.
To correctly apply transformation you should build a tree structure representing relationships between objects.
Then from top to bottom create transformation matrix.
If object has parent: multiply parent's matrix by object's matrix to get final matrix
|
Representation of 3D vectors and points
| Field |
Type |
Default value |
Required to implement? |
Description |
| x |
double |
|
yes
|
|
| y |
double |
|
yes
|
|
| z |
double |
|
yes
|
|
Right-hand coordinate system is used to specify coordinate locations.
| Field |
Type |
Default value |
Required to implement? |
Description |
| x |
double |
|
yes
|
|
| y |
double |
|
yes
|
|
| z |
double |
|
yes
|
|
| Scalar Type | C# | JavaScript | Java | C++ |
| double |
double |
any |
double |
double |
| float |
float |
any |
float |
float |
| int32 |
int |
any |
int |
int32 |
| int64 |
long |
any |
long |
int64 |
| uint32 |
uint |
any |
int |
uint32 |
| uint64 |
ulong |
any |
long |
uint64 |
| sint32 |
int |
any |
int |
int32 |
| sint64 |
long |
any |
long |
int64 |
| fixed32 |
uint |
any |
int |
uint32 |
| fixed64 |
ulong |
any |
long |
uint64 |
| sfixed32 |
int |
any |
int |
int32 |
| sfixed64 |
long |
any |
long |
int64 |
| bool |
bool |
any |
boolean |
bool |
| string |
string |
any |
String |
string |
| bytes |
ByteString |
any |
ByteString |
string |
Scene examples to check if your program works with format correctly.
Only focus on the general look of a scene, outputs may not be identical. Colors may wary from renderer to renderer and light sources might be too bright.
Scenes without light sources are rendered only with normals to show how objects should look. Scenes with light sources and materials are rendered using Whitted raytracing.
Parameters for Whitted raycaster:
- 256 rays per pixel
- 2 ray per light source
- depth 2
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 6
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"sphere": {
"radius": 1.5
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 6
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"cube": {
"size": {
"x": 2,
"y": 1,
"z": 1
}
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 6
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": -1,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"plane": {}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 6
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": -1,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"disk": {
"radius": 5
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 0.3,
"z": 1.2
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"meshed_object": {
"reference": "cow2.obj"
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 3,
"y": 3,
"z": 6
},
"rotation": {
"x": -25,
"y": 25,
"z": 0
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"cube": {
"size": {
"x": 2,
"y": 1,
"z": 1
}
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 1.25,
"y": 0.1,
"z": 0
},
"rotation": {
"x": 10,
"y": 90,
"z": 0
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
},
"scale": {
"x": 0.4,
"y": 1,
"z": 4
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"meshed_object": {
"reference": "cow2.obj"
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 2,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 1.25,
"y": 0.1,
"z": 0
},
"rotation": {
"x": 10,
"y": 90,
"z": 0
}
},
"perspective": {
"fov": 60
}
},
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 0.3,
"z": 1.2
}
},
"perspective": {
"fov": 100
}
}
],
"sceneObjects": [
{
"id": 3,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
},
"scale": {
"x": 0.4,
"y": 1,
"z": 4
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"meshed_object": {
"reference": "cow2.obj"
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 3
},
"rotation": {
"x": -10,
"y": 0,
"z": 0
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 1
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"meshed_object": {
"reference": "cow2.obj"
}
},
{
"id": 3,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": -1
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"meshed_object": {
"reference": "dragon.obj"
}
},
{
"id": 4,
"transform": {
"position": {
"x": 1.1,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"sphere": {
"radius": 0.3
}
},
{
"id": 5,
"transform": {
"position": {
"x": -1.1,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"cube": {
"size": {
"x": 0.3,
"y": 0.3,
"z": 0.3
}
}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 5
},
"rotation": {
"x": 0,
"y": 0,
"z": 0
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"sphere": {
"radius": 1
}
},
{
"id": 3,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 0,
"b": 0
}
}
},
"disk": {
"radius": 10
}
}
],
"lights": [
{
"id": 4,
"color": {
"r": 3,
"g": 3,
"b": 3
},
"environment": {}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 5
},
"rotation": {
"x": 0,
"y": 0,
"z": 0
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 0,
"g": 0,
"b": 1
}
}
},
"sphere": {
"radius": 1
}
},
{
"id": 3,
"transform": {
"position": {
"x": 2,
"y": 1,
"z": 1
}
},
"material": {
"specular_reflection": {
"eta": 2
}
},
"sphere": {
"radius": 1
}
},
{
"id": 4,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 0,
"b": 0
}
}
},
"disk": {
"radius": 10
}
}
],
"lights": [
{
"id": 5,
"color": {
"r": 3,
"g": 3,
"b": 3
},
"environment": {}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 5
},
"rotation": {
"x": 0,
"y": 0,
"z": 0
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"sphere": {
"radius": 1
}
},
{
"id": 3,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 0,
"b": 0
}
}
},
"disk": {
"radius": 10
}
}
],
"lights": [
{
"id": 4,
"transform": {
"position": {
"x": 0,
"y": 2,
"z": 2
}
},
"color": {
"r": 100,
"g": 100,
"b": 100
},
"point": {}
}
]
}
{
"version": 1,
"renderOptions": {
"cameraId": 1,
"width": 640,
"height": 360
},
"cameras": [
{
"id": 1,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 5
},
"rotation": {
"x": 0,
"y": 0,
"z": 0
}
},
"perspective": {
"fov": 60
}
}
],
"sceneObjects": [
{
"id": 2,
"transform": {
"position": {
"x": 0,
"y": 1,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 1,
"b": 1
}
}
},
"sphere": {
"radius": 1
}
},
{
"id": 3,
"transform": {
"position": {
"x": 0,
"y": 0,
"z": 0
}
},
"material": {
"lambert_reflection": {
"color": {
"r": 1,
"g": 0,
"b": 0
}
}
},
"disk": {
"radius": 10
}
}
],
"lights": [
{
"id": 4,
"transform": {
"rotation": {
"x": -30,
"y": -100,
"z": 0
}
},
"color": {
"r": 3,
"g": 3,
"b": 3
},
"directional": {}
}
]
}
