TypeShade
glslEs300Backend
Constant in Emit
The GLSL ES 3.00 (WebGL2) Backend.
import { glslEs300Backend } from 'typeshade'
The signature, the description and the examples come from the compiler's own source at commit 26de7be8.
Syntax
const glslEs300Backend: BackendDescription
The GLSL ES 3.00 (WebGL2) Backend. It supplies the GLSL spelling of types,
literals, intrinsics and declarations to the shared emitter, which walks a module’s
control flow the same way for every target. emitGlslModule,
emitGlslStages and emitGlslFragment drive it; pass it to a function
that takes a Backend when you need GLSL spelling for a single construct.
Everything GLSL ES 3.00 cannot express throws UnsupportedFeatureError
(SD0030) before any source is produced: a @compute entry that is not declared
portable, a multisampled (2d-ms) texture load, f16, subgroups, a standalone
sampler binding (GLSL has only the combined sampler2D), and a vertex entry that
returns a bare non-struct output (GLSL links inter-stage varyings by field name, so
the output must be a struct whose field the fragment input shares). A storage
binding does not throw: emitGlslModule rewrites it to a data-texture read
first, and only the shapes that rewrite cannot cover throw, such as a read_write
storage binding or an unsupported element type.
See also
Source
src/core/backends/glsl.ts, line 557, at commit 26de7be8