120 lines
3 KiB
C++
120 lines
3 KiB
C++
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// #include "NewPlacement.hpp"
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#include "RayTracer.hpp"
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#include "UnitTest++/UnitTest++.h"
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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using namespace tp;
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void writeImage(const RayTracer::RenderBuffer& output) {
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// Save the data to a PNG file
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struct urgb {
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uint1 r, g, b, a;
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};
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Buffer2D<urgb> converted;
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converted.reserve(output.size());
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for (Index i = 0; i < output.size().x; i++) {
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for (Index j = 0; j < output.size().y; j++) {
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converted.get({ i, j }).r = uint1(output.get({ i, j }).r * 255);
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converted.get({ i, j }).g = uint1(output.get({ i, j }).g * 255);
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converted.get({ i, j }).b = uint1(output.get({ i, j }).b * 255);
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converted.get({ i, j }).a = uint1(output.get({ i, j }).a * 255);
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}
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}
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stbi_write_png("output.png", converted.size().x, converted.size().y, 4, converted.getBuff(), converted.size().x * 4);
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}
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bool compareCols(const RGBA& l, const RGBA& r) {
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auto small = 0.0001f;
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if ((l.r - r.r) > small) {
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return false;
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}
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if ((l.g - r.g) > small) {
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return false;
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}
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if ((l.b - r.b) > small) {
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return false;
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}
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if ((l.a - r.a) > small) {
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return false;
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}
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return true;
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}
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SUITE(RayTracer) {
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TEST(Basic) {
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using namespace tp;
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Scene scene;
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scene.mCamera.lookAtPoint({ 0, 0, 0 }, { 2, 2, 2 }, { 0, 0, 1 });
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scene.mCamera.setFOV(3.14 / 4);
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scene.mLights.append({ { 0, 0, 1.1f }, 1.f, 0.3f });
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scene.mObjects.append(Object());
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auto& object = scene.mObjects.last();
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object.mTopology.Points = {
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{ 1.000000, 0.000000, 0.000000 },
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{ 0.000000, 1.000000, 0.000000 },
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{ 0.000000, 0.000000, 1.000000 },
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};
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object.mTopology.Normals = {
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{ 1.000000, 1.000000, 1.000000 },
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{ 1.000000, 1.000000, 1.000000 },
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{ 1.000000, 1.000000, 1.000000 },
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};
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object.mTopology.Indexes = {
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{ 0, 1, 2 },
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};
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object.mCache.Source = &object.mTopology;
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object.mCache.updateCache();
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RenderSettings settings = {
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0,
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0,
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1,
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{ 10, 10 },
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};
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RayTracer::OutputBuffers output;
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// output.reserve(RayTracer::RenderBuffer::Index2D(settings.size.x, settings.size.y));
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RayTracer rt;
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rt.render(scene, output, settings);
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output.color.flipY();
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CHECK(compareCols(output.color.get({ 6, 4 }), RGBA{ 0.560100f, 0.560100f, 0.560100f, 1.000000f }));
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CHECK(compareCols(output.color.get({ 6, 5 }), RGBA{ 0.353739f, 0.353739f, 0.353739f, 1.000000f }));
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CHECK(compareCols(output.color.get({ 6, 6 }), RGBA{ 0.242577f, 0.242577f, 0.242577f, 1.000000f }));
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CHECK(compareCols(output.color.get({ 6, 7 }), RGBA{ 0.176313f, 0.176313f, 0.176313f, 1.000000f }));
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CHECK(compareCols(output.color.get({ 6, 8 }), RGBA{ 0.000000f, 0.000000f, 0.000000f, 0.000000f }));
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if (0) {
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writeImage(output.color);
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for (Index i = 0; i < output.color.size().x; i++) {
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for (Index j = 0; j < output.color.size().y; j++) {
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auto tmp = output.color.get({ i, j });
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printf(
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"TEST(compareCols(output.get({%i, %i}), RGBA{ %ff, %ff, %ff, %ff }));\n", i, j, tmp.r, tmp.g, tmp.b, tmp.a
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);
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}
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}
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}
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}
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}
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int main(int argc, char* argv[]) {
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return UnitTest::RunAllTests();
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}
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