@deck.gl/mesh-layers/dist/simple-mesh-layer/simple-mesh-layer-vertex.glsl.js

deck.gl layers that loads 3D meshes or scene graphs

// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
export default `#version 300 es
#define SHADER_NAME simple-mesh-layer-vs
in vec3 positions;
in vec3 normals;
in vec3 colors;
in vec2 texCoords;
in vec3 instancePositions;
in vec3 instancePositions64Low;
in vec4 instanceColors;
in vec3 instancePickingColors;
in vec3 instanceModelMatrixCol0;
in vec3 instanceModelMatrixCol1;
in vec3 instanceModelMatrixCol2;
in vec3 instanceTranslation;
out vec2 vTexCoord;
out vec3 cameraPosition;
out vec3 normals_commonspace;
out vec4 position_commonspace;
out vec4 vColor;
void main(void) {
geometry.worldPosition = instancePositions;
geometry.uv = texCoords;
geometry.pickingColor = instancePickingColors;
vTexCoord = texCoords;
cameraPosition = project.cameraPosition;
vColor = vec4(colors * instanceColors.rgb, instanceColors.a);
mat3 instanceModelMatrix = mat3(instanceModelMatrixCol0, instanceModelMatrixCol1, instanceModelMatrixCol2);
vec3 pos = (instanceModelMatrix * positions) * simpleMesh.sizeScale + instanceTranslation;
if (simpleMesh.composeModelMatrix) {
DECKGL_FILTER_SIZE(pos, geometry);
normals_commonspace = project_normal(instanceModelMatrix * normals);
geometry.worldPosition += pos;
gl_Position = project_position_to_clipspace(pos + instancePositions, instancePositions64Low, vec3(0.0), position_commonspace);
geometry.position = position_commonspace;
}
else {
pos = project_size(pos);
DECKGL_FILTER_SIZE(pos, geometry);
gl_Position = project_position_to_clipspace(instancePositions, instancePositions64Low, pos, position_commonspace);
geometry.position = position_commonspace;
normals_commonspace = project_normal(instanceModelMatrix * normals);
}
geometry.normal = normals_commonspace;
DECKGL_FILTER_GL_POSITION(gl_Position, geometry);
DECKGL_FILTER_COLOR(vColor, geometry);
}
`;
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