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Added attribute handling

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This commit is contained in:
Olivier Guyot
2018-11-14 14:31:35 +01:00
parent fc20dc986c
commit 97b16be572
2 changed files with 53 additions and 10 deletions
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13
src/ol/renderer/webgl-new/PointsLayer.js
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@@ -3,10 +3,11 @@
*/
import LayerRenderer from '../Layer';
import WebGLBuffer from '../../webgl/Buffer';
import {DYNAMIC_DRAW, ARRAY_BUFFER, ELEMENT_ARRAY_BUFFER} from '../../webgl';
import WebGLContext, {DefaultUniform} from '../../webgl/Context';
import {DYNAMIC_DRAW, ARRAY_BUFFER, ELEMENT_ARRAY_BUFFER, FLOAT} from '../../webgl';
import WebGLContext, {DefaultAttrib, DefaultUniform} from '../../webgl/Context';
import WebGLVertex from "../../webgl/Vertex";
import WebGLFragment from "../../webgl/Fragment";
import GeometryType from "../../geom/GeometryType";
const VERTEX_SHADER = `
attribute vec2 a_position;
@@ -111,10 +112,13 @@ class WebGLPointsLayerRenderer extends LayerRenderer {
// loop on features to fill the buffer
// vectorSource.loadFeatures(extent, resolution, projection);
vectorSource.forEachFeature((feature) => {
let x = 0, y = 0, size = 0;
if (!feature.getGeometry() || feature.getGeometry().getType() !== GeometryType.POINT) {
return;
}
const geom = /** @type {import("../../geom/Point").default} */ (feature.getGeometry());
const x = geom.getCoordinates()[0], y = geom.getCoordinates()[1], size = 1;
let baseIndex = this.verticesBuffer_.getArray().length / 3;
// todo: put data in buffer
this.verticesBuffer_.getArray().push(
x - size / 2, y - size / 2,
x + size / 2, y - size / 2,
@@ -131,6 +135,7 @@ class WebGLPointsLayerRenderer extends LayerRenderer {
// write new data
this.context_.bindBuffer(ARRAY_BUFFER, this.verticesBuffer_);
this.context_.bindBuffer(ELEMENT_ARRAY_BUFFER, this.indicesBuffer_);
this.context_.enableAttributeArray(DefaultAttrib.POSITION, 2, FLOAT, 0, 0);
return true;
}