public void LoadPNGImageWithAlpha()
{
//load a ppm
var png = PNGImage.LoadPNGFromPath("../../../../../textures/testTextureWithSomeAlpha.png");
var ppm = new ppmImage(512, 512, 255);
ppm.Colors = png.Colors;
Assert.AreEqual(png.Colors.Where(x => x == Color.FromArgb(255, 216, 216, 216)).Count(), 11016);
var savePath = "../../../../../testTextureWithSomeAlpha.ppm";
System.IO.File.WriteAllBytes(savePath, ppm.toByteArray());
}
public void Prespective_Normal_Map_TinyRenderReferenceAnimation()
{
var cameraPos = new Vector3(-.6f, .6f, 3);
var target = new Vector3(0, 0, 0);
var width = 480;
var height = 480;
var view = Matrix4x4.CreateLookAt(cameraPos, target, Vector3.UnitY);
var proj = Matrix4x4.CreatePerspective(1, 1, 1, 10);
var viewport = MatrixExtensions.CreateViewPortMatrix(0, 0, 255, width, height);
var mesh = ObjFileLoader.LoadMeshFromObjAtPath(new System.IO.FileInfo(Path.Combine(root, "geometry_models/tiny_renderer_sample_models/african_head.obj")));
var diffuseTex = PNGImage.LoadPNGFromPath(Path.Combine(root, "geometry_models/tiny_renderer_sample_models/african_head_diffuse2.png"));
var normalMap = PNGImage.LoadPNGFromPath(Path.Combine(root, "geometry_models/tiny_renderer_sample_models/african_head_nm_tangent.png"));
var lightvals = Enumerable.Range(0, 11).Select(x => (x / 5.0) - 1.0).ToList();
var renderable = new Renderable <Mesh>(
new NormalMaterial()
{
Shader = new NormalShader(view, proj, viewport)
{
ambientCoef = 10, LightDirection = new Vector3(0, 0, 1)
},
DiffuseTexture = new Texture2d(diffuseTex.Width, diffuseTex.Height, diffuseTex.Colors),
NormalMap = new Texture2d(normalMap.Width, normalMap.Height, normalMap.Colors)
},
mesh);
var renderer = new Renderer3dGeneric <Mesh>(width, height, Color.White,
new List <IEnumerable <Renderable <Mesh> > > {
new List <Renderable <Mesh> > {
renderable
}
});
for (var i = 0; i < lightvals.Count; i++)
{
var mat = Matrix4x4.CreateRotationY(0.174533f * 3f);
var transformedLightDir = Vector3.Transform(renderable.material.Shader.LightDirection, Matrix4x4.Transpose(mat));
renderable.material.Shader.LightDirection = transformedLightDir;
var image = new ppmImage(width, height, 255);
image.Colors = renderer.Render();
image.Flip();
var path = $"../../../animation1/perspectiveTestNormalHead{i}.ppm";
System.IO.FileInfo file = new System.IO.FileInfo(path);
file.Directory.Create();
System.IO.File.WriteAllBytes(path, image.toByteArray());
}
}
public void Prespective_Normal_Map_ZbrushMando1()
{
var cameraPos = new Vector3(-2f, 1, 4f);
var target = new Vector3(0, 0, 0);
var width = 2048;
var height = 2048;
var view = Matrix4x4.CreateLookAt(cameraPos, target, Vector3.UnitY);
var proj = Matrix4x4.CreatePerspective(1, 1, 1, 10);
var viewport = MatrixExtensions.CreateViewPortMatrix(0, 0, 255, width, height);
var mesh = ObjFileLoader.LoadMeshFromObjAtPath(new System.IO.FileInfo(Path.Combine(root, "geometry_models/mandohead/mandoclean.OBJ")));
var diffuseTex = PNGImage.LoadPNGFromPath(Path.Combine(root, "geometry_models/mandohead/mandocleandiffuse6.png"));
var normalMap = PNGImage.LoadPNGFromPath(Path.Combine(root, "geometry_models/mandohead/mandocleannormal1.png"));
var renderable = new Renderable <Mesh>(
new NormalMaterial()
{
Shader = new NormalShader(view, proj, viewport)
{
ambientCoef = 30, LightDirection = new Vector3(0, 0, 1f)
},
DiffuseTexture = new Texture2d(diffuseTex.Width, diffuseTex.Height, diffuseTex.Colors),
NormalMap = new Texture2d(normalMap.Width, normalMap.Height, normalMap.Colors)
},
mesh);
var renderer = new Renderer3dGeneric <Mesh>(width, height, Color.White,
new List <IEnumerable <Renderable <Mesh> > > {
new List <Renderable <Mesh> > {
renderable
}
});
var image = new ppmImage(width, height, 255);
image.Colors = renderer.Render();
image.Flip();
System.IO.File.WriteAllBytes("../../../perspectiveTestNormalMandoonecolorfront.ppm", image.toByteArray());
Assert.AreEqual(3248415, image.Colors.Where(x => x == Color.White).Count());
}
public void Prespective_Normal_Map()
{
var cameraPos = new Vector3(0, 2, 2);
var target = new Vector3(0, 0, 0);
var width = 1024;
var height = 1024;
var view = Matrix4x4.CreateLookAt(cameraPos, target, Vector3.UnitY);
var proj = Matrix4x4.CreatePerspective(4, 4, 1, 10);
var viewport = MatrixExtensions.CreateViewPortMatrix(0, 0, 255, width, height);
var mesh = ObjFileLoader.LoadMeshFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/knot3/knot3.obj"));
var diffuseTex = new ppmImage("../../../../../textures/testTexture2.ppm");
var normalMap = PNGImage.LoadPNGFromPath("../../../../../textures/testMaps/gridnormalmap.png");
var renderable = new Renderable <Mesh>(
new NormalMaterial()
{
Shader = new NormalShader(view, proj, viewport)
{
ambientCoef = 10, LightDirection = new Vector3(0, 0, 1)
},
DiffuseTexture = new Texture2d(diffuseTex.Width, diffuseTex.Height, diffuseTex.Colors),
NormalMap = new Texture2d(normalMap.Width, normalMap.Height, normalMap.Colors)
},
mesh);
var renderer = new Renderer3dGeneric <Mesh>(width, height, Color.White,
new List <IEnumerable <Renderable <Mesh> > > {
new List <Renderable <Mesh> > {
renderable
}
});
var image = new ppmImage(width, height, 255);
image.Colors = renderer.Render();
System.IO.File.WriteAllBytes("../../../perspectiveTestNormal.ppm", image.toByteArray());
Assert.AreEqual(1002520, image.Colors.Where(x => x == Color.White).Count());
}
public void Prespective_Normal_Map_TinyRenderReference()
{
var cameraPos = new Vector3(-.6f, .6f, 3);
var target = new Vector3(0, 0, 0);
var width = 2048;
var height = 2048;
var view = Matrix4x4.CreateLookAt(cameraPos, target, Vector3.UnitY);
var proj = Matrix4x4.CreatePerspective(1, 1, 1, 10);
var viewport = MatrixExtensions.CreateViewPortMatrix(0, 0, 255, width, height);
var mesh = ObjFileLoader.LoadMeshFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/tiny_renderer_sample_models/african_head.obj"));
var diffuseTex = PNGImage.LoadPNGFromPath("../../../../../geometry_models/tiny_renderer_sample_models/african_head_diffuse2.png");
var normalMap = PNGImage.LoadPNGFromPath("../../../../../geometry_models/tiny_renderer_sample_models/african_head_nm_tangent.png");
var renderable = new Renderable <Mesh>(
new NormalMaterial()
{
Shader = new NormalShader(view, proj, viewport)
{
ambientCoef = 10, LightDirection = new Vector3(0, 0, 1)
},
DiffuseTexture = new Texture2d(diffuseTex.Width, diffuseTex.Height, diffuseTex.Colors),
NormalMap = new Texture2d(normalMap.Width, normalMap.Height, normalMap.Colors)
},
mesh);
var renderer = new Renderer3dGeneric <Mesh>(width, height, Color.White,
new List <IEnumerable <Renderable <Mesh> > > {
new List <Renderable <Mesh> > {
renderable
}
});
var image = new ppmImage(width, height, 255);
image.Colors = renderer.Render();
System.IO.File.WriteAllBytes("../../../perspectiveTestNormalHead.ppm", image.toByteArray());
Assert.AreEqual(3362439, image.Colors.Where(x => x == Color.White).Count());
}
public void RenderIsFlippedCorrectly()
{
var cameraPos = new Vector3(-.6f, .6f, 5);
var target = new Vector3(0, 0, 0);
var width = 2048;
var height = 2048;
var view = Matrix4x4.CreateLookAt(cameraPos, target, Vector3.UnitY);
var proj = Matrix4x4.CreatePerspective(1, 1, 1, 10);
var viewport = MatrixExtensions.CreateViewPortMatrix(0, 0, 255, width, height);
var mesh = ObjFileLoader.LoadMeshFromObjAtPath(new System.IO.FileInfo(System.IO.Path.Combine(root, "geometry_models/head_asymmetric/head.OBJ")));
var diffuseTex = PNGImage.LoadPNGFromPath(System.IO.Path.Combine(root, "geometry_models/head_asymmetric/head.png"));
var renderable = new Renderable <Mesh>(
new DiffuseMaterial()
{
Shader = new TextureShader(view, proj, viewport)
{
LightDirection = new Vector3(0, 0, 1)
},
DiffuseTexture = new Texture2d(diffuseTex.Width, diffuseTex.Height, diffuseTex.Colors),
},
mesh);
var renderer = new Renderer3dGeneric <Mesh>(width, height, Color.White,
new List <IEnumerable <Renderable <Mesh> > > {
new List <Renderable <Mesh> > {
renderable
}
});
var image = new ppmImage(width, height, 255);
image.Colors = renderer.Render();
image.Flip();
System.IO.File.WriteAllBytes("../../../asymmetricHead.ppm", image.toByteArray());
Assert.AreEqual(3528584, image.Colors.Where(x => x == Color.White).Count());
}