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add getCameraFrustum() and getCameraProjectionMatrix()

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This commit is contained in:
Nick Fisher
2023-11-08 20:30:14 +08:00
parent 962d53442f
commit 2db353cc3b
12 changed files with 521 additions and 78 deletions
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12
ios/src/FilamentViewer.cpp
View File

@@ -1121,6 +1121,18 @@ namespace polyvox
return cam.getViewMatrix();
}
const math::mat4 FilamentViewer::getCameraProjectionMatrix()
{
const auto &cam = _view->getCamera();
return cam.getProjectionMatrix();
}
const filament::Frustum FilamentViewer::getCameraFrustum()
{
const auto &cam = _view->getCamera();
return cam.getFrustum();
}
void FilamentViewer::_createManipulator()
{
Camera &cam = _view->getCamera();

29
ios/src/FlutterFilamentApi.cpp
View File

@@ -126,8 +126,33 @@ extern "C"
const double *const get_camera_view_matrix(const void *const viewer)
{
const auto &modelMatrix = ((FilamentViewer *)viewer)->getCameraViewMatrix();
return modelMatrix.asArray();
const auto &matrix = ((FilamentViewer *)viewer)->getCameraViewMatrix();
double *array = (double *)calloc(16, sizeof(double));
memcpy(array, matrix.asArray(), 16 * sizeof(double));
return array;
}
const double *const get_camera_projection_matrix(const void *const viewer)
{
const auto &matrix = ((FilamentViewer *)viewer)->getCameraProjectionMatrix();
double *array = (double *)calloc(16, sizeof(double));
memcpy(array, matrix.asArray(), 16 * sizeof(double));
return array;
}
const double *const get_camera_frustum(const void *const viewer)
{
const auto frustum = ((FilamentViewer *)viewer)->getCameraFrustum();
const math::float4* planes = frustum.getNormalizedPlanes();
double *array = (double *)calloc(24, sizeof(double));
for(int i =0; i < 6; i++) {
array[i*4] = planes[i].x;
array[i*4+1] = planes[i].y;
array[i*4+2] = planes[i].z;
array[i*4+3] = planes[i].w;
}
return array;
}
FLUTTER_PLUGIN_EXPORT void set_camera_manipulator_options(const void *const viewer, _ManipulatorMode mode, double orbitSpeedX, double orbitSpeedY, double zoomSpeed)