public void PathTracePrimitivesTest()
{
var geometryList = new GeometryCollection();
//geometryList.Add(new Plane(new Vector(0, -0.5, 0), new Vector(0, 1, 0)) { Color = Color.White });
geometryList.Add(new Sphere(new Vector(0, -10000, 0), 9999.5)
{
Color = Color.White
});
geometryList.Add(new Sphere(new Vector(-0.5, 0, -0.5), 0.5)
{
Color = Color.Red
});
geometryList.Add(new Sphere(new Vector(+0.5, 0, +0.5), 0.5)
{
Color = Color.Green
});
geometryList.Add(new Sphere(new Vector(+0.5, 0, -0.5), 0.5)
{
Color = Color.Blue
});
geometryList.Add(new Sphere(new Vector(-0.5, 0, +0.5), 0.5)
{
Color = Color.Yellow
});
objectDepth = 3.0;
double depthOfFocus = objectDepth - 0.5;
RaytraceScenario(pathTracing: true, shading: false, extraGeometry: geometryList);
// TODO: in this render, the triangle geometry ends up added twice!
RaytraceScenario(pathTracing: true, shading: false, extraGeometry: geometryList, focalBlur: true, focalDepth: depthOfFocus, subPixelRes: 4);
// TODO: in this render, the triangle geometry ends up added 3x!
RaytraceScenario(pathTracing: true, shading: false, extraGeometry: geometryList, focalBlur: true, focalDepth: depthOfFocus, subPixelRes: 8);
}
// skip all tests up until a specific test, then run it and all the rest
/*
* private const string startFromTest = "raytrace/100x100/noShading_staticShadows_lightField";
* private bool skipTest = true;
*/
// TODO: add flag for quad-filtering on color lightfield
private void RaytraceScenario(bool shading = true, bool focalBlur = false, bool shadows = false, bool staticShadows = false,
bool lightField = false, bool lightFieldWithTris = false, bool pathTracing = false, bool voxels = false,
int subPixelRes = 1, int resolution = defaultResolution, double pitchDegrees = defaultPitchDegrees,
double yawDegrees = defaultYawDegrees, double rollDegrees = defaultRollDegrees, double focalDepth = -1, GeometryCollection extraGeometry = null)
{
using (var renderer = new Renderer())
{
RendererSetup(renderer, modelFileName, pitchDegrees, yawDegrees, rollDegrees, objectDepth, resolution);
// TODO: raytracer has slight difference on cube edges between Release and Debug mode. Rounding error?
renderer.rayTrace = true;
renderer.rayTraceSubdivision = true;
renderer.rayTraceShading = shading;
renderer.rayTraceFocalBlur = focalBlur;
renderer.rayTraceFocalDepth = (Math.Abs(focalDepth + 1) < 0.001 ? objectDepth + 0.5 : focalDepth);
renderer.rayTraceSubPixelRes = subPixelRes;
renderer.rayTracePathTracing = pathTracing;
renderer.rayTraceVoxels = voxels;
renderer.rayTraceShadows = shadows; // TODO: adding this flag seems to increase test runtime massively! (during focal blur?)
renderer.rayTraceShadowsStatic = staticShadows;
// TODO: ambient occlusion has some instability, sometimes causes banding, and fails regression testing
//renderer.rayTraceAmbientOcclusion = true; // = flags[2];
// TODO: non-cached AO has many differences to cached AO
//renderer.ambientOcclusionEnableCache = false;
// avoid caching static shadows to disk, as this can produce a slightly different image on each test execution
renderer.CacheStaticShadowsToFile = false;
// lightfields must be used in x64 mode to avoid 'cannot create MM view' errors
// TODO: unit testing lightfields with memory-mapped files seems to cause an error for later tests
renderer.rayTraceLightField = lightField;
renderer.LightFieldStoresTriangles = lightFieldWithTris;
// raytrace any extra geometry beyond the triangle model?
if (extraGeometry != null)
{
renderer.ExtraGeometryToRaytrace = extraGeometry;
}
// when shadows are disabled, static shadows flag has no effect
if (renderer.rayTraceShadowsStatic && !renderer.rayTraceShadows)
{
return;
}
var dirPath = "raytrace/" + resolution + 'x' + resolution;
var testName = dirPath + '/' +
(renderer.rayTraceVoxels ? "voxels_" : "") +
(renderer.rayTracePathTracing ? "pathTracing_" : "") +
(renderer.rayTraceShading ? "shading" : "noShading") +
(renderer.rayTraceShadows ? (renderer.rayTraceShadowsStatic ? "_staticShadows" : "_shadows") : "") +
(renderer.rayTraceAmbientOcclusion ? "_AO" : "") +
(lightField && lightFieldWithTris ? "_lightFieldTri" : "") + (lightField && !lightFieldWithTris ? "_lightFieldColor" : "") +
(renderer.rayTraceFocalBlur ? "_focalBlur" : "") +
(focalBlur ? "x" + subPixelRes : (subPixelRes > 1 ? "_" + subPixelRes + "xAA" : "")) +
(extraGeometry != null ? ("_" + (extraGeometry.Count + 1) + "_geometry") : "") +
raytraceTestSuffix;
/*
* // skip all tests up until a specific test, then run it and all the rest
* if (testName == startFromTest)
* skipTest = false;
* if (skipTest)
* return;
*/
Directory.CreateDirectory(candidatePath + dirPath);
Directory.CreateDirectory(baselinePath + dirPath);
try
{
RenderAndTest(testName, renderer, resolution, resolution);
}
catch (Exception ex)
{
// TODO: reports test name, but breaks stack trace links.
//Assert.Fail("{0}: threw exception", testName);
Console.WriteLine(ex);
throw;
}
}
}
