Allow gradients and 2d images.
Use shader versions for LUT in tonemap
Co-authored-by: alex-poe <3957610+CptPotato@users.noreply.github.com>
Co-authored-by: QbieShay <cislaghi.ilaria@gmail.com>
Co-authored-by: Clay John <claynjohn@gmail.com>
The underscore prefix was used to avoid the conflict between the `RID` class
name and the matching enum value in `Variant::Type`.
This can be fixed differently by prefixing uses of the `RID` class in `Variant`
with the scope resolution operator, as done already for `AABB`.
-Allows merging several 2D objects into a single draw operation
-Use current node to clip children nodes
-Further fixes to Vulkan barriers
-Changed font texture generation to white, fixes dark eges when blurred
-Other small misc fixes to backbuffer code.
This makes it clearer that it expects a node type as a string
(such as "Label") instead of a type like "TYPE_ARRAY".
This is backwards-compatible since only the name of the parameter
is changed, not its order.
-Removed normal/specular properties from nodes
-Create CanvasTexture, which can contain normal/specular channels
-Refactored, optimized and simplified 2D shaders
-Use atlas for light textures.
-Use a shadow atlas for shadow textures.
-Use both items aboves to make light rendering stateless (faster).
-Reorganized uniform sets for more efficiency.
The glTF 2.0 spec only makes `mimeType` mandatory for `bufferView` image data,
so the previous logic to handle URIs with base64-encoded images could fail if
`mimeType` is undefined.
The logic was documented and refactored to better handle the spec, notably:
- `uri` and `bufferView` are now mutually exclusive, and only the latter fails
if `mimeType` is undefined.
- `uri` with a file path will now respect the `mimeType` if defined, and thus
attempt loading the file with the specified format (even if its extension is
not the one expected for this format). So we can support bad extensions (PNG
data with `.jpg` extension) or custom ones (PNG data in `.img` file for
example).
- `uri` with base64 encoded data will infer MIME type from `data:image/png` or
`data:image/jpeg` if it was not documented in `mimeType` initially.
- `uri` with base64 encoded data, no `mimeType` and `application/octet-stream`
or `application/gltf-buffer` will fall back to trying both PNG and JPEG
loaders.
Fully fixes#33796 (and fixes up #42501).
