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add the -a option to skinning and morphing samples (#7815)

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* add the `-a` option to skinning and morphing samples

* Update samples/skinningtest.cpp

Co-authored-by: Ben Doherty <bendoherty@google.com>

* Update samples/helloskinningbuffer_morebones.cpp

Co-authored-by: Ben Doherty <bendoherty@google.com>

* Update samples/hellomorphing.cpp

Co-authored-by: Ben Doherty <bendoherty@google.com>

* Update samples/helloskinningbuffer.cpp

Co-authored-by: Ben Doherty <bendoherty@google.com>

---------

Co-authored-by: Ben Doherty <bendoherty@google.com>
This commit is contained in:
Mathias Agopian
2024-05-01 15:24:01 -07:00
committed by GitHub
parent 600c122761
commit 95134883d6
5 changed files with 303 additions and 0 deletions
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60
samples/helloskinningbuffer.cpp
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@@ -27,17 +27,22 @@
#include <filament/View.h>
#include <utils/EntityManager.h>
#include <utils/Path.h>
#include <getopt/getopt.h>
#include <filamentapp/Config.h>
#include <filamentapp/FilamentApp.h>
#include <cmath>
#include <iostream>
#include "generated/resources/resources.h"
using namespace filament;
using utils::Entity;
using utils::EntityManager;
using utils::Path;
using namespace filament::math;
struct App {
@@ -85,10 +90,65 @@ mat4f transforms[] = {math::mat4f(1.f),
mat4f::translation(float3(0, -1, 0)),
mat4f::translation(float3(1, -1, 0))};
static void printUsage(char* name) {
std::string exec_name(Path(name).getName());
std::string usage(
"SAMPLE is a command-line tool for testing Filament skinning buffers.\n"
"Usage:\n"
" SAMPLE [options]\n"
"Options:\n"
" --help, -h\n"
" Prints this message\n\n"
" --api, -a\n"
" Specify the backend API: opengl (default), vulkan, or metal\n\n"
);
const std::string from("SAMPLE");
for (size_t pos = usage.find(from); pos != std::string::npos; pos = usage.find(from, pos)) {
usage.replace(pos, from.length(), exec_name);
}
std::cout << usage;
}
static int handleCommandLineArgments(int argc, char* argv[], Config* config) {
static constexpr const char* OPTSTR = "ha:";
static const struct option OPTIONS[] = {
{ "help", no_argument, nullptr, 'h' },
{ "api", required_argument, nullptr, 'a' },
{ nullptr, 0, nullptr, 0 } // termination of the option list
};
int opt;
int option_index = 0;
while ((opt = getopt_long(argc, argv, OPTSTR, OPTIONS, &option_index)) >= 0) {
std::string arg(optarg != nullptr ? optarg : "");
switch (opt) {
default:
case 'h':
printUsage(argv[0]);
exit(0);
case 'a':
if (arg == "opengl") {
config->backend = Engine::Backend::OPENGL;
} else if (arg == "vulkan") {
config->backend = Engine::Backend::VULKAN;
} else if (arg == "metal") {
config->backend = Engine::Backend::METAL;
} else {
std::cerr << "Unrecognized backend. Must be 'opengl'|'vulkan'|'metal'."
<< std::endl;
}
break;
}
}
return optind;
}
int main(int argc, char** argv) {
Config config;
config.title = "skinning buffer common for two renderables";
handleCommandLineArgments(argc, argv, &config);
App app;
auto setup = [&app](Engine* engine, View* view, Scene* scene) {
app.skybox = Skybox::Builder().color({0.1, 0.125, 0.25, 1.0}).build(*engine);