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WebGPU: Add support for post processes written in WGSL #13937

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Jun 5, 2023
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WebGPU: Add support for post processes written in WGSL #13937

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2 changes: 2 additions & 0 deletions packages/dev/core/src/Engines/webgpuEngine.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,8 @@ import { WebGPUSnapshotRendering } from "./WebGPU/webgpuSnapshotRendering";
import type { WebGPUDataBuffer } from "../Meshes/WebGPU/webgpuDataBuffer";
import type { WebGPURenderTargetWrapper } from "./WebGPU/webgpuRenderTargetWrapper";

import "../ShadersWGSL/postprocess.vertex";

declare function importScripts(...urls: string[]): void;

declare type VideoTexture = import("../Materials/Textures/videoTexture").VideoTexture;
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22 changes: 22 additions & 0 deletions packages/dev/core/src/ShadersWGSL/postprocess.vertex.fx
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@@ -0,0 +1,22 @@
// Attributes
attribute position: vec2<f32>;

uniform scale: vec2<f32>;

// Output
varying vUV: vec2<f32>;

const madd = vec2(0.5, 0.5);

#define CUSTOM_VERTEX_DEFINITIONS

@vertex
fn main(input : VertexInputs) -> FragmentInputs {

#define CUSTOM_VERTEX_MAIN_BEGIN

vertexOutputs.vUV = (vertexInputs.position * madd + madd) * uniforms.scale;
vertexOutputs.position = vec4(vertexInputs.position, 0.0, 1.0);

#define CUSTOM_VERTEX_MAIN_END
}