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added levoy transfer function

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This commit is contained in:
Robin
2025-01-20 15:20:59 +01:00
parent bae68db6b8
commit 9f7700ae80
6 changed files with 66 additions and 39 deletions
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13
src/gui/input/Widget.cpp
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@@ -45,9 +45,12 @@ Widget::Widget(GLFWwindow* window) {
this->sigmoidExp = -250.0f;
this->alphaAcumLimit = 0.4f;
this->tfComboSelected = 2;
this->tfComboSelectedColor = 0;
this->opacityConst = 100;
this->showSilhouettes = false;
this->silhouettesThreshold = 0.02f;
this->levoyFocus = 0.5;
this->levoyWidth = 1;
};
// REFACTOR: should probably not have all the logic in one function; something like a list of ImplementedWidgets with each a Render() function (a la interface) would be better.
@@ -73,13 +76,18 @@ void Widget::tick(double fps) {
ImGui::InputFloat("Sig. sxp", &this->sigmoidExp, 10.0f, 100.0f, "%.0f");
ImGui::DragFloat("Alpha accum. limit", &this->alphaAcumLimit, 0.01f, 0.0f, 1.0f, "%.2f");
ImGui::DragInt("Opacity const. (log [1e-5, 1])", &this->opacityConst, 1, 0, 100, "%d%%", ImGuiSliderFlags_AlwaysClamp);
ImGui::DragFloat("Levoy Width", &this->levoyWidth, 0.01f, 0.0f, 100.0f, "%.2f");
// ImGui::DragFloat("Levoy Focus", &this->levoyFocus, 0.01f, 250.0f, 350.0f, "%.2f");
ImGui::DragFloat("Levoy Focus", &this->levoyFocus, 0.01f, 0.0f, 1.0f, "%.2f");
// the items[] contains the entries for the combobox. The selected index is stored as an int on this->tfComboSelected
// the default entry is set in the constructor, so if you want that to be a specific entry just change it
// whatever value is selected here is available on the gpu as d_tfComboSelected.
const char* items[] = {"Opacity - gradient", "Opacity - sigmoid", "Opacity - constant", "..."};
const char* items[] = {"Opacity - gradient", "Opacity - sigmoid", "Opacity - constant", "Opacity - levoy"};
if (ImGui::BeginCombo("Transfer function", items[this->tfComboSelected])) {
// std::cout << "hello???\n";
for (int n = 0; n < IM_ARRAYSIZE(items); n++) {
// std::cout << "letsssssa a asdfa???\n";
const bool is_selected = (this->tfComboSelected == n);
if (ImGui::Selectable(items[n], is_selected))
this->tfComboSelected = n;
@@ -171,11 +179,14 @@ void Widget::copyToDevice() {
cudaMemcpyToSymbol(&d_tfComboSelected, &this->tfComboSelected, sizeof(int));
cudaMemcpyToSymbol(&d_showSilhouettes, &this->showSilhouettes, sizeof(bool));
cudaMemcpyToSymbol(&d_silhouettesThreshold, &this->silhouettesThreshold, sizeof(float));
cudaMemcpyToSymbol(&d_levoyFocus, &this->levoyFocus, sizeof(float));
cudaMemcpyToSymbol(&d_levoyWidth, &this->levoyWidth, sizeof(float));
this->opacityConstReal = std::pow(10.0f, (-5 + 0.05 * this->opacityConst));
cudaMemcpyToSymbol(&d_opacityConst, &this->opacityConstReal, sizeof(float));
cudaMemcpyToSymbol(&d_tfComboSelectedColor, &this->tfComboSelectedColor, sizeof(int));
}
Widget::~Widget() {