public bool LoadFromKtx(string path)
{
string iblPath = path + "_ibl.ktx";
if (!File.Exists(iblPath))
{
return(false);
}
string skyPath = path + "_skybox.ktx";
if (!File.Exists(skyPath))
{
return(false);
}
var iblKtx = CreateKtx(iblPath);
var skyKtx = CreateKtx(skyPath);
_skyboxTexture = KtxUtility.CreateTexture(_engine, skyKtx, false);
_texture = KtxUtility.CreateTexture(_engine, iblKtx, false);
if (!iblKtx.GetSphericalHarmonics(out _bands))
{
return(false);
}
IndirectLight = IndirectLightBuilder.Create()
.WithReflections(_texture)
.WithIntensity(Intensity)
.Build(_engine);
Skybox = SkyboxBuilder.Create()
.WithEnvironment(_skyboxTexture)
.WithSun(true)
.Build(_engine);
return(true);
}
static void Main(string[] args)
{
Material material = null;
MaterialInstance materialInstance = null;
Texture normal = null;
Texture albedo = null;
Texture ao = null;
Texture metallic = null;
Texture roughness = null;
Mesh mesh = null;
Matrix4x4 transform;
var app = new Application(
new WindowConfig()
{
Title = "suzanne",
},
new ApplicationConfig()
{
IblDirectory = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), IBL_FOLDER)
}
);
app.Setup = (engine, view, scene) => {
var tcm = engine.TransformManager;
var rcm = engine.RenderableManager;
var monkeyData = new MonkeyDataLoader();
// Create textures. The KTX bundles are freed by KtxUtility.
var albedoBundle = new KtxBundle(monkeyData.LoadAlbedoS3tc());
var aoBundle = new KtxBundle(monkeyData.LoadAo());
var metallicBundle = new KtxBundle(monkeyData.LoadMetallic());
var roughnessBundle = new KtxBundle(monkeyData.LoadRougness());
albedo = KtxUtility.CreateTexture(engine, albedoBundle, true);
ao = KtxUtility.CreateTexture(engine, aoBundle, false);
metallic = KtxUtility.CreateTexture(engine, metallicBundle, false);
roughness = KtxUtility.CreateTexture(engine, roughnessBundle, false);
normal = LoadNormalMap(engine, monkeyData.LoadNormal());
var resourceData = new SampleDataLoader();
var sampler = new TextureSampler(SamplerMinFilter.LinearMipmapLinear, SamplerMagFilter.Linear);
// Instantiate material.
material = MaterialBuilder.Create()
.WithPackage(resourceData.LoadTexturedLit())
.Build(engine);
materialInstance = material.CreateInstance();
materialInstance.SetParameter("albedo", albedo, sampler);
materialInstance.SetParameter("ao", ao, sampler);
materialInstance.SetParameter("metallic", metallic, sampler);
materialInstance.SetParameter("normal", normal, sampler);
materialInstance.SetParameter("roughness", roughness, sampler);
var indirectLight = app.Ibl.IndirectLight;
indirectLight.Intensity = 100000;
indirectLight.Rotation = Matrix4x4.CreateFromAxisAngle(Vector3.UnitY, 0.5f);
// Add geometry into the scene.
mesh = MeshReader.LoadFromBuffer(engine, monkeyData.LoadSuzanne(), materialInstance);
var ti = tcm.GetInstance(mesh.Renderable);
transform = tcm.GetWorldTransform(ti) * Matrix4x4.CreateTranslation(0, 0, -4);
rcm.SetCastShadows(rcm.GetInstance(mesh.Renderable), false);
scene.AddEntity(mesh.Renderable);
tcm.SetTransform(ti, transform);
};
app.Cleanup = (engine, view, scene) => {
engine.Destroy(materialInstance);
engine.Destroy(mesh.Renderable);
engine.Destroy(material);
engine.Destroy(albedo);
engine.Destroy(normal);
engine.Destroy(roughness);
engine.Destroy(metallic);
engine.Destroy(ao);
};
app.Run();
}
