emitGlslStages()

구문

function emitGlslStages(
  m: ModuleDecl,
  opts?: GlslEmitOptions & { vertexEntry?: string; fragmentEntry?: string },
): { vertex: string; fragment: string }

매개변수

m ModuleDecl

the module to emit.

opts선택 사항 GlslEmitOptions & { vertexEntry?: string; fragmentEntry?: string }

the GlslEmitOptions, plus vertexEntry and fragmentEntry.

반환값

{ vertex: string; fragment: string }

the vertex and fragment sources, each #version 300 es first.

예외

Error

the same errors as emitGlslModule.

UnsupportedFeatureError

GLSL allows one main() per stage, so a module with two fragment entries needs fragmentEntry to say which one becomes main(); the other entries are left out of that stage’s source, and with none named such a stage throws UnsupportedFeatureError (SD0030).

SD0030

GLSL allows one main() per stage, so a module with two fragment entries needs fragmentEntry to say which one becomes main(); the other entries are left out of that stage’s source, and with none named such a stage throws UnsupportedFeatureError (SD0030).

설명

The result is identical to calling emitGlslModule(m, 'vertex') and emitGlslModule(m, 'fragment'), at about half the cost, since the optimizer runs once for both stages. Use it from a host that creates a pipeline, which always needs both.

opts.vertexEntry and opts.fragmentEntry name the entry to emit for each stage, for a module that declares several entries of one stage. GLSL allows one main() per stage, so a module with two fragment entries needs fragmentEntry to say which one becomes main(); the other entries are left out of that stage’s source, and with none named such a stage throws UnsupportedFeatureError (SD0030). The output does not depend on which other entries the module carries, because every optimizer pass works on one function at a time.

예제

import { emitGlslStages } from 'typeshade'

const { vertex, fragment } = emitGlslStages(MODULE, { fragmentEntry: 'fs_pattern' })

대상별 지원

관련 가이드

• 작성 가이드
• 첫 셰이더
• 출력과 리플렉션
• GLSL 부동소수점 정밀도

함께 보기

• UnsupportedFeatureError
• GlslEmitOptions
• emitGlslModule

소스

src/core/backends/glsl.ts, 2558행, 커밋 26de7be8 기준