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Refactoring the pass and pipeline, so that inputs and size are handed to and returned from the build function (formerly setSize). This is now the earliest place to build bind groups, which makes sense, because it's also the earliest place to create textures that are proportional to the size of the canvas.

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Rezmason
2021-11-15 00:30:09 -08:00
parent b0a4acdfdb
commit 1b61e304a5
10 changed files with 142 additions and 144 deletions
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26
js/webgpu/rainPass.js
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@@ -31,7 +31,7 @@ const makeConfigBuffer = (device, configUniforms, config, density, gridSize) =>
return makeUniformBuffer(device, configUniforms, configData);
};
export default (context, getInputs) => {
export default (context) => {
const { config, device, timeBuffer, canvasFormat } = context;
const assets = [loadTexture(device, config.glyphTexURL), loadShader(device, "shaders/wgsl/rainPass.wgsl")];
@@ -92,12 +92,7 @@ export default (context, getInputs) => {
let output;
let highPassOutput;
const getOutputs = () => ({
primary: output,
highPass: highPassOutput,
});
const ready = (async () => {
const loaded = (async () => {
const [msdfTexture, rainShader] = await Promise.all(assets);
const rainShaderUniforms = structs.from(rainShader.code);
@@ -150,9 +145,9 @@ export default (context, getInputs) => {
renderBindGroup = makeBindGroup(device, renderPipeline, 0, [configBuffer, timeBuffer, sceneBuffer, linearSampler, msdfTexture.createView(), cellsBuffer]);
})();
const setSize = (width, height) => {
const build = (size) => {
// Update scene buffer: camera and transform math for the volumetric mode
const aspectRatio = width / height;
const aspectRatio = size[0] / size[1];
if (config.effect === "none") {
if (aspectRatio > 1) {
mat4.orthoZO(camera, -1.5 * aspectRatio, 1.5 * aspectRatio, -1.5, 1.5, -1000, 1000);
@@ -167,13 +162,18 @@ export default (context, getInputs) => {
// Update
output?.destroy();
output = makeRenderTarget(device, width, height, canvasFormat);
output = makeRenderTarget(device, size, canvasFormat);
highPassOutput?.destroy();
highPassOutput = makeRenderTarget(device, width, height, canvasFormat);
highPassOutput = makeRenderTarget(device, size, canvasFormat);
return {
primary: output,
highPass: highPassOutput,
};
};
const execute = (encoder) => {
const run = (encoder) => {
// We render the code into an Target using MSDFs: https://github.com/Chlumsky/msdfgen
const computePass = encoder.beginComputePass();
@@ -191,5 +191,5 @@ export default (context, getInputs) => {
renderPass.endPass();
};
return makePass(getOutputs, ready, setSize, execute);
return makePass(loaded, build, run);
};