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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | 220x 220x 938x 469x 469x 469x 220x 742x 371x 371x 371x 220x 220x 220x 220x 220x 4284x 247x 247x 247x 247x 247x 247x 247x 247x 247x 247x 4284x 1x 220x 220x 220x 220x 220x 220x 220x 1x 1x | import { mat3, mat4 } from 'gl-matrix';
import * as macro from 'vtk.js/Sources/macros';
import vtkViewNode from 'vtk.js/Sources/Rendering/SceneGraph/ViewNode';
import { registerOverride } from 'vtk.js/Sources/Rendering/OpenGL/ViewNodeFactory';
// ----------------------------------------------------------------------------
// vtkOpenGLCamera methods
// ----------------------------------------------------------------------------
function vtkOpenGLCamera(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkOpenGLCamera');
publicAPI.buildPass = (prepass) => {
if (prepass) {
model._openGLRenderer =
publicAPI.getFirstAncestorOfType('vtkOpenGLRenderer');
model._openGLRenderWindow = model._openGLRenderer.getParent();
model.context = model._openGLRenderWindow.getContext();
}
};
// Renders myself
publicAPI.opaquePass = (prepass) => {
if (prepass) {
const tsize = model._openGLRenderer.getTiledSizeAndOrigin();
model.context.viewport(
tsize.lowerLeftU,
tsize.lowerLeftV,
tsize.usize,
tsize.vsize
);
model.context.scissor(
tsize.lowerLeftU,
tsize.lowerLeftV,
tsize.usize,
tsize.vsize
);
}
};
publicAPI.translucentPass = publicAPI.opaquePass;
publicAPI.zBufferPass = publicAPI.opaquePass;
publicAPI.opaqueZBufferPass = publicAPI.opaquePass;
publicAPI.volumePass = publicAPI.opaquePass;
publicAPI.getKeyMatrices = (ren) => {
// has the camera changed?
if (
ren !== model.lastRenderer ||
model._openGLRenderWindow.getMTime() > model.keyMatrixTime.getMTime() ||
publicAPI.getMTime() > model.keyMatrixTime.getMTime() ||
ren.getMTime() > model.keyMatrixTime.getMTime() ||
model.renderable.getMTime() > model.keyMatrixTime.getMTime()
) {
mat4.copy(model.keyMatrices.wcvc, model.renderable.getViewMatrix());
mat3.fromMat4(model.keyMatrices.normalMatrix, model.keyMatrices.wcvc);
mat3.invert(
model.keyMatrices.normalMatrix,
model.keyMatrices.normalMatrix
);
mat4.transpose(model.keyMatrices.wcvc, model.keyMatrices.wcvc);
const aspectRatio = model._openGLRenderer.getAspectRatio();
mat4.copy(
model.keyMatrices.vcpc,
model.renderable.getProjectionMatrix(aspectRatio, -1, 1)
);
mat4.transpose(model.keyMatrices.vcpc, model.keyMatrices.vcpc);
mat4.multiply(
model.keyMatrices.wcpc,
model.keyMatrices.vcpc,
model.keyMatrices.wcvc
);
model.keyMatrixTime.modified();
model.lastRenderer = ren;
}
return model.keyMatrices;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
context: null,
lastRenderer: null,
keyMatrixTime: null,
keyMatrices: null,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Inheritance
vtkViewNode.extend(publicAPI, model, initialValues);
model.keyMatrixTime = {};
macro.obj(model.keyMatrixTime);
// values always get set by the get method
model.keyMatrices = {
normalMatrix: new Float64Array(9),
vcpc: new Float64Array(16),
wcvc: new Float64Array(16),
wcpc: new Float64Array(16),
};
// Build VTK API
macro.setGet(publicAPI, model, ['context', 'keyMatrixTime']);
// Object methods
vtkOpenGLCamera(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
// Register ourself to OpenGL backend if imported
registerOverride('vtkCamera', newInstance);
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