@webviz/subsurface-viewer/dist/layers/well_markers/marker.vs.glsl.js

3D visualization component for subsurface reservoir data

export default `#version 300 es
#define SHADER_NAME well-markers-vertex-shader

in vec3 positions;
in vec3 instancePositions;
in float instanceSizes;
in float instanceAzimuths;
in float instanceInclinations;
in vec4 instanceColors;
in vec4 instanceOutlineColors;
in vec3 instancePickingColors;

out vec4 vColor;

void main(void) {
   vec3 position = instancePositions;
   position.z *= (wellMarkers.ZIncreasingDownwards? -1.0 : 1.0);

   geometry.worldPosition = position;
   geometry.pickingColor  = instancePickingColors;

   vColor = wellMarkers.useOutlineColor ? instanceOutlineColors : instanceColors;

   float sizeInPixels = project_size_to_pixel(instanceSizes, wellMarkers.sizeUnits);
   float projectedSize = project_pixel_size(sizeInPixels);

   float sinA = sin (PI / 180.0 * instanceAzimuths);
   float cosA = cos (PI / 180.0 * instanceAzimuths);

   float sinI = sin (PI / 180.0 * instanceInclinations);
   float cosI = cos (PI / 180.0 * instanceInclinations);

   mat3 azimuthMatrix = mat3(vec3(cosA, sinA, 0.0), vec3(-sinA, cosA, 0.0), vec3(0.0, 0.0, 1.0));
   mat3 inclMatrix    = mat3(vec3(1.0, 0.0, 0.0), vec3(0.0, cosI, sinI), vec3(0.0, -sinI, cosI));
   mat3 sizeMatrix    = mat3(vec3(projectedSize, 0.0, 0.0), vec3(0.0, projectedSize, 0.0), vec3(0.0, 0.0, 1.0));
   vec3 rotatedPos    = azimuthMatrix * inclMatrix * sizeMatrix *positions;

   vec4 position_commonspace = vec4(project_position(rotatedPos + position), 0.0);
   gl_Position = project_common_position_to_clipspace(position_commonspace);

   DECKGL_FILTER_GL_POSITION(gl_Position, geometry);
   DECKGL_FILTER_COLOR(vColor, geometry);
}
`;
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