@webviz/subsurface-viewer/dist/extensions/side-projection-extension.js

3D visualization component for subsurface reservoir data

import { LayerExtension } from "@deck.gl/core";
import { project32, project } from "@deck.gl/core";
const defaultProps = {
    sideViewIds: [],
};
const injectionVs = {
    "vs:#decl": /*glsl*/ `
  vec3 new_position;
`,
    "vs:DECKGL_FILTER_GL_POSITION": /*glsl*/ `
  new_position = transform(position.xyz);
  position.xyz = new_position;
`,
};
export class SideProjectionExtension extends LayerExtension {
    getShaders() {
        return {
            modules: [project, project32, gridUniforms],
            inject: injectionVs,
        };
    }
    draw() {
        const { sideViewIds } = this.props;
        const isSideView = sideViewIds.includes(this.context.viewport.id);
        this.setShaderModuleProps({
            side: {
                side_view: isSideView,
            },
        });
    }
}
SideProjectionExtension.defaultProps = defaultProps;
SideProjectionExtension.extensionName = "SideProjectionExtension";
// local shader module for the uniforms
const uniformsBlock = /*glsl*/ `\
uniform sideUniforms {
    float side_view;
} side;

vec3 transform(vec3 clip_position) {
    if (side.side_view < 1.0) {
        return clip_position;
    }
    vec3 world_position = geometry.worldPosition.xyz;
    vec4 transformed = vec4(world_position.x, world_position.z, 0.0, 1.0);
    vec4 commonspace = project_position(transformed);
    vec4 clipspace = project_common_position_to_clipspace(commonspace);
    return clipspace.xyz;
}
`;
const gridUniforms = {
    name: "side",
    vs: uniformsBlock,
    uniformTypes: {
        side_view: "f32",
    },
};
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