133 lines
5.8 KiB
C++
133 lines
5.8 KiB
C++
#include <cmath>
|
|
#include <faset/render/render_graph.hpp>
|
|
#include <faset/render/renderer.hpp>
|
|
#include <iostream>
|
|
#include <stdexcept>
|
|
using namespace faset::render;
|
|
void require(bool test, const char* message) {
|
|
if (!test)
|
|
throw std::runtime_error(message);
|
|
}
|
|
int main(int argc, char** argv) {
|
|
try {
|
|
if (argc > 1 && std::string(argv[1]) == "--unit") {
|
|
int count{};
|
|
RenderGraph invalid;
|
|
invalid.add("consumer", {"missing"}, {}, [&] { ++count; });
|
|
bool caught{};
|
|
try {
|
|
invalid.execute();
|
|
} catch (const std::runtime_error&) {
|
|
caught = true;
|
|
}
|
|
require(caught && count == 0, "Graph must validate before side effects");
|
|
RenderGraph graph;
|
|
graph.import("external");
|
|
graph.add("first", {"external"}, {"color"}, [&] {
|
|
require(count == 0, "Pass order");
|
|
++count;
|
|
});
|
|
graph.add("second", {"color"}, {}, [&] { ++count; });
|
|
graph.execute();
|
|
require(count == 2, "Pass execution count");
|
|
auto t = transform({2, 3, 4}, {}, {2, 3, 4});
|
|
require(t[12] == 2 && t[13] == 3 && t[14] == 4, "Transform translation");
|
|
auto m = multiply(identity, t);
|
|
require(m == t, "Matrix multiplication identity");
|
|
require(cube_mesh()->indices.size() == 36, "Cube triangle topology");
|
|
std::cout << "Render graph and math contracts passed\n";
|
|
return 0;
|
|
}
|
|
bool visible = argc > 1 && std::string(argv[1]) == "--visible";
|
|
Renderer renderer({320, 240, "Faset render validation", !visible, true});
|
|
Snapshot scene;
|
|
scene.eye = {4, 3, 5};
|
|
scene.view_projection =
|
|
multiply(perspective(.85f, 320.f / 240.f, .1f, 100), look_at(scene.eye, {0, 0, 0}));
|
|
scene.draws.push_back(
|
|
{cube_mesh(), transform({0, 0, 0}), {.2f, .65f, .95f, 1}, .4f, .15f, true});
|
|
scene.draws.push_back({cube_mesh(),
|
|
transform({0, -1, 0}, {}, {10, 1, 10}),
|
|
{.45f, .48f, .5f, 1},
|
|
.8f,
|
|
0,
|
|
true});
|
|
scene.ui_quads.push_back({8, 8, 70, 16, {.8f, .1f, .15f, 1}});
|
|
auto texture = std::make_shared<Texture>();
|
|
texture->width = texture->height = 1;
|
|
texture->rgba = {20, 220, 40, 255};
|
|
scene.ui_quads.push_back({260, 8, 40, 20, {1, 1, 1, 1}, texture});
|
|
renderer.render(scene);
|
|
require(renderer.stats().validation_errors == 0, "Vulkan validation reported an error");
|
|
auto pixels = renderer.pixels();
|
|
require(pixels.size() == 320 * 240 * 4, "Readback dimensions");
|
|
auto index = (10 * 320 + 10) * 4;
|
|
require(pixels[index] > 190 && pixels[index + 1] < 50, "Colored UI pixel");
|
|
index = (10 * 320 + 270) * 4;
|
|
require(pixels[index] < 30 && pixels[index + 1] > 200, "Textured UI pixel");
|
|
texture->srgb = true;
|
|
++texture->revision;
|
|
renderer.render(scene);
|
|
auto srgb_pixels = renderer.pixels();
|
|
require(std::abs(int(srgb_pixels[index + 1]) - 220) <= 1,
|
|
"Unlit sRGB texture retains its display-space color");
|
|
texture->srgb = false;
|
|
++texture->revision;
|
|
auto baked_scene = scene;
|
|
auto baked_mesh = std::make_shared<Mesh>(*cube_mesh());
|
|
for (auto& vertex : baked_mesh->vertices) {
|
|
vertex.position[0] *= 10;
|
|
vertex.position[2] *= 10;
|
|
}
|
|
baked_scene.draws[1].mesh = baked_mesh;
|
|
baked_scene.draws[1].model = transform({0, -1, 0});
|
|
renderer.render(baked_scene);
|
|
auto baked_pixels = renderer.pixels();
|
|
std::size_t normal_difference{};
|
|
for (std::size_t i = 0; i < pixels.size(); ++i)
|
|
if (std::abs(int(pixels[i]) - int(baked_pixels[i])) > 2)
|
|
++normal_difference;
|
|
require(normal_difference < 10,
|
|
"Nonuniformly scaled normals must match baked geometry lighting");
|
|
auto shadowed = pixels;
|
|
if (argc > 2)
|
|
renderer.capture(std::string(argv[2]) + ".shadowed.ppm");
|
|
for (auto& draw : scene.draws)
|
|
draw.cast_shadow = false;
|
|
renderer.render(scene);
|
|
pixels = renderer.pixels();
|
|
std::size_t shadow_difference{};
|
|
for (std::size_t i = 0; i < pixels.size(); i += 4)
|
|
if (pixels[i] > shadowed[i] + 8)
|
|
++shadow_difference;
|
|
if (shadow_difference <= 20) {
|
|
std::cerr << "Shadow difference pixels: " << shadow_difference << "\n";
|
|
if (argc > 2)
|
|
renderer.capture(std::string(argv[2]) + ".unshadowed.ppm");
|
|
}
|
|
require(shadow_difference > 20, "Directional shadow must darken rendered surface pixels");
|
|
for (auto& draw : scene.draws)
|
|
draw.cast_shadow = true;
|
|
std::string reload_error;
|
|
require(renderer.reload_shaders(reload_error), "Compatible shader pipeline reload");
|
|
texture->rgba = {40, 30, 230, 255};
|
|
++texture->revision;
|
|
renderer.render(scene);
|
|
pixels = renderer.pixels();
|
|
require(pixels[index + 2] > 220, "Texture revision upload");
|
|
if (argc > 2)
|
|
renderer.capture(argv[2]);
|
|
renderer.resize(400, 300);
|
|
renderer.poll_events();
|
|
renderer.render(scene);
|
|
require(renderer.width() == 400 && renderer.height() == 300, "Render target resize");
|
|
require(renderer.stats().validation_errors == 0, "Resize validation error");
|
|
std::cout << "Vulkan frame, shadow/PBR, atlas upload, readback and resize passed on "
|
|
<< renderer.stats().device << '\n';
|
|
} catch (const std::exception& e) {
|
|
std::cerr << e.what() << '\n';
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|