@itwin/core-frontend
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iTwin.js frontend components
40 lines • 2.1 kB
JavaScript
;
/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
/** @packageDocumentation
* @module WebGL
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.createCopyPickBuffersProgram = createCopyPickBuffersProgram;
const RenderFlags_1 = require("../RenderFlags");
const Texture_1 = require("../Texture");
const ViewportQuad_1 = require("./ViewportQuad");
const computeBaseColor = "return vec4(1.0);";
const assignFragData = `
FragColor0 = TEXTURE(u_pickFeatureId, v_texCoord);
FragColor1 = TEXTURE(u_pickDepthAndOrder, v_texCoord);
`;
/** @internal */
function createCopyPickBuffersProgram(context) {
const builder = (0, ViewportQuad_1.createViewportQuadBuilder)(true);
const frag = builder.frag;
frag.set(1 /* FragmentShaderComponent.ComputeBaseColor */, computeBaseColor);
frag.addUniform("u_pickFeatureId", 8 /* VariableType.Sampler2D */, (prog) => {
prog.addGraphicUniform("u_pickFeatureId", (uniform, params) => {
Texture_1.Texture2DHandle.bindSampler(uniform, params.geometry.featureId, RenderFlags_1.TextureUnit.Zero);
});
}, 3 /* VariablePrecision.High */);
frag.addUniform("u_pickDepthAndOrder", 8 /* VariableType.Sampler2D */, (prog) => {
prog.addGraphicUniform("u_pickDepthAndOrder", (uniform, params) => {
Texture_1.Texture2DHandle.bindSampler(uniform, params.geometry.depthAndOrder, RenderFlags_1.TextureUnit.One);
});
}, 3 /* VariablePrecision.High */);
frag.addDrawBuffersExtension(2);
frag.set(18 /* FragmentShaderComponent.AssignFragData */, assignFragData);
builder.vert.headerComment = "//!V! CopyPickBuffers";
builder.frag.headerComment = "//!F! CopyPickBuffers";
return builder.buildProgram(context);
}
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