private void SetupScene1()
{
TextureMaterial woodMaterial = new TextureMaterial(woodTexture, 0.2, 0.0, 2, .5);
TextureMaterial marbleMaterial = new TextureMaterial(marbleTexture, 0.0, 0.0, 2, .5);
TextureMaterial wallMaterial = new TextureMaterial(wallTexture, 0.0, 0.0, 2, .4);
scene = new Scene();
scene.Background = new Background(new RGBA_Doubles(.8, .8, .8), 0.8);
Vector campos = new Vector(5, 1.8, -15);
scene.Camera = new Camera(campos, campos / -3, new Vector(0, 1, 0).Normalize());
// marble
scene.Shapes.Add(new SphereShape(new Vector(1, 1, -5), 1,
marbleMaterial));
//floor
scene.Shapes.Add(new PlaneShape(new Vector(0, 1, 0).Normalize(), 0, woodMaterial));
//wall
scene.Shapes.Add(new PlaneShape(new Vector(0, 0, 1).Normalize(), 0, wallMaterial));
scene.Lights.Add(new Light(new Vector(25, 20, -20), new RGBA_Doubles(0.5, 0.5, 0.5)));
scene.Lights.Add(new Light(new Vector(-3, 5, -15), new RGBA_Doubles(0.5, 0.5, 0.5)));
}
// marble balls scene
private void SetupScene0()
{
TextureMaterial texture = new TextureMaterial(marbleTexture, 0.0, 0.0, 2, .5);
scene = new Scene();
scene.Camera = new Camera(new Vector3(0, 0, -15), new Vector3(-.2, 0, 5), new Vector3(0, 1, 0));
// setup a solid reflecting sphere
scene.Shapes.Add(new SphereShape(new Vector(-1.5, 0.5, 0), .5,
new SolidMaterial(new RGBA_Doubles(0, .5, .5), 0.2, 0.0, 2.0)));
// setup sphere with a marble texture from an image
scene.Shapes.Add(new SphereShape(new Vector(0, 0, 0), 1, texture));
scene.Shapes.Add(new BoxShape(new Vector(0, 0, -15), new Vector(.5, .5, .5), new SolidMaterial(new RGBA_Doubles(0, 0, 1), .1, 0, .2)));
// setup the chessboard floor
scene.Shapes.Add(new PlaneShape(new Vector(0.1, 0.9, -0.5).Normalize(), 1.2,
new ChessboardMaterial(new RGBA_Doubles(1, 1, 1), new RGBA_Doubles(0, 0, 0), 0.2, 0, 1, 0.7)));
//add two lights for better lighting effects
scene.Lights.Add(new Light(new Vector(5, 10, -1), new RGBA_Doubles(0.8, 0.8, 0.8)));
scene.Lights.Add(new Light(new Vector(-3, 5, -15), new RGBA_Doubles(0.8, 0.8, 0.8)));
}
private void CreateScene()
{
scene = new Scene();
scene.camera = new TrackBallCamera(trackballTumbleWidget);
//scene.background = new Background(new RGBA_Floats(0.5, .5, .5), 0.4);
scene.background = new Background(new RGBA_Floats(1, 1, 1, 0), 0.6);
AddTestMesh(loadedMeshGroups);
allObjects = BoundingVolumeHierarchy.CreateNewHierachy(renderCollection);
allObjectsHolder = new Transform(allObjects);
//allObjects = root;
scene.shapes.Add(allObjectsHolder);
//AddAFloor();
//add two lights for better lighting effects
//scene.lights.Add(new Light(new Vector3(5000, 5000, 5000), new RGBA_Floats(0.8, 0.8, 0.8)));
scene.lights.Add(new PointLight(new Vector3(-5000, -5000, 3000), new RGBA_Floats(0.5, 0.5, 0.5)));
}
private void CreateScene()
{
scene = new Scene();
scene.camera = new TrackBallCamera(trackballTumbleWidget);
scene.background = new Background(new RGBA_Floats(0.5, .5, .5), 0.4);
AddBoxAndSheresBooleanTest();
//AddBoxAndBoxBooleanTest();
#if false
renderCollection.Add(new BoxShape(new Vector3(), new Vector3(1, 1, 1),
new SolidMaterial(new RGBA_Floats(.9, .2, .1), .01, 0.0, 2.0)));
renderCollection.Add(new BoxShape(new Vector3(.5,.5,.5), new Vector3(1.5, 1.5, 1.5),
new SolidMaterial(new RGBA_Floats(.9, .2, .1), .01, 0.0, 2.0)));
#endif
//renderCollection.Add(new CylinderShape(.25, 1, new SolidMaterial(RGBA_Floats.Cyan, 0, 0, 0)));
//AddTestStl();
//AddPolygonTest();
//AddSphereAndBox();
//AddAxisMarker();
//AddCubeOfShperes();
//renderCollection.Add(MakerGearXCariage());
allObjects = BoundingVolumeHierarchy.CreateNewHierachy(renderCollection);
allObjectsHolder = new Transform(allObjects);
//allObjects = root;
scene.shapes.Add(allObjectsHolder);
//AddAFloor();
//add two lights for better lighting effects
scene.lights.Add(new PointLight(new Vector3(5000, 5000, 5000), new RGBA_Floats(0.8, 0.8, 0.8)));
scene.lights.Add(new PointLight(new Vector3(-5000, -5000, 3000), new RGBA_Floats(0.5, 0.5, 0.5)));
}
public RGBA_Floats CreateAndTraceSecondaryRays(IntersectInfo info, Ray ray, Scene scene, int depth)
{
// calculate ambient light
RGBA_Floats infoColorAtHit = info.closestHitObject.GetColor(info);
RGBA_Floats color = infoColorAtHit * scene.background.Ambience;
double shininess = Math.Pow(10, info.closestHitObject.Material.Gloss + 1);
foreach (Light light in scene.lights)
{
// calculate diffuse lighting
Vector3 directiorFromHitToLight = light.Transform.Position - info.hitPosition;
double distanceToLight = directiorFromHitToLight.Length;
Vector3 directiorFromHitToLightNormalized = directiorFromHitToLight.GetNormal();
if (RenderDiffuse)
{
double L = Vector3.Dot(directiorFromHitToLightNormalized, info.normalAtHit);
if (L > 0.0f)
{
color += infoColorAtHit * light.Color * L;
}
}
// this is the max depth of raytracing.
// increasing depth will calculate more accurate color, however it will
// also take longer (exponentially)
if (depth < 3)
{
// calculate reflection ray
if (RenderReflection && info.closestHitObject.Material.Reflection > 0)
{
Ray reflectionRay = GetReflectionRay(info.hitPosition, info.normalAtHit, ray.direction);
IntersectInfo reflectionInfo = TracePrimaryRay(reflectionRay, scene);
RGBA_Floats reflectionColorAtHit;// = reflectionInfo.closestHitObject.GetColor(reflectionInfo);
if (reflectionInfo.hitType != IntersectionType.None && reflectionInfo.distanceToHit > 0)
{
// recursive call, this makes reflections expensive
reflectionColorAtHit = CreateAndTraceSecondaryRays(reflectionInfo, reflectionRay, scene, depth + 1);
}
else // does not reflect an object, then reflect background color
{
reflectionColorAtHit = scene.background.Color;
}
color = color.Blend(reflectionColorAtHit, info.closestHitObject.Material.Reflection);
}
//calculate refraction ray
if (RenderRefraction && info.closestHitObject.Material.Transparency > 0)
{
Ray refractionRay = new Ray(info.hitPosition, ray.direction, Ray.sameSurfaceOffset, double.MaxValue); // GetRefractionRay(info.hitPosition, info.normalAtHit, ray.direction, info.closestHit.Material.Refraction);
IntersectInfo refractionInfo = TracePrimaryRay(refractionRay, scene);
RGBA_Floats refractionColorAtHit = refractionInfo.closestHitObject.GetColor(refractionInfo);
if (refractionInfo.hitType != IntersectionType.None && refractionInfo.distanceToHit > 0)
{
// recursive call, this makes refractions expensive
refractionColorAtHit = CreateAndTraceSecondaryRays(refractionInfo, refractionRay, scene, depth + 1);
}
else
{
refractionColorAtHit = scene.background.Color;
}
color = refractionColorAtHit.Blend(color, info.closestHitObject.Material.Transparency);
}
}
IntersectInfo shadow = new IntersectInfo();
if (RenderShadow)
{
// calculate shadow, create ray from intersection point to light
Ray shadowRay = new Ray(info.hitPosition, directiorFromHitToLightNormalized, Ray.sameSurfaceOffset, double.MaxValue); // it may be usefull to limit the legth to te dist to the camera (but I doubt it LBB).
shadowRay.isShadowRay = true;
// if the normal at the closest hit is away from the shadow it is already it it's own shadow.
if (Vector3.Dot(info.normalAtHit, directiorFromHitToLightNormalized) < 0)
{
shadow.hitType = IntersectionType.FrontFace;
color *= 0.5;// +0.5 * Math.Pow(shadow.closestHit.Material.Transparency, 0.5); // Math.Pow(.5, shadow.HitCount);
}
else
{
// find any element in between intersection point and light
shadow = TracePrimaryRay(shadowRay, scene);
if (shadow.hitType != IntersectionType.None && shadow.closestHitObject != info.closestHitObject && shadow.distanceToHit < distanceToLight)
{
// only cast shadow if the found interesection is another
// element than the current element
color *= 0.5;// +0.5 * Math.Pow(shadow.closestHit.Material.Transparency, 0.5); // Math.Pow(.5, shadow.HitCount);
}
}
}
// only show highlights if it is not in the shadow of another object
if (RenderHighlights && shadow.hitType == IntersectionType.None && info.closestHitObject.Material.Gloss > 0)
{
// only show Gloss light if it is not in a shadow of another element.
// calculate Gloss lighting (Phong)
Vector3 Lv = (info.hitPosition - light.Transform.Position).GetNormal();
Vector3 E = (scene.camera.Origin - info.hitPosition).GetNormal();
Vector3 H = (E - Lv).GetNormal();
double Glossweight = 0.0;
Glossweight = Math.Pow(Math.Max(Vector3.Dot(info.normalAtHit, H), 0), shininess);
color += light.Color * (Glossweight);
}
}
color.Clamp0To1();
return color;
}
public void TracePrimaryRayBundle(RayBundle rayBundle, IntersectInfo[] intersectionsForBundle, Scene scene)
{
if (scene.shapes.Count != 1)
{
throw new Exception("You can only trace a ray bundle into a sigle shape, usually a BoundingVolumeHierachy.");
}
scene.shapes[0].GetClosestIntersections(rayBundle, 0, intersectionsForBundle);
}
public IntersectInfo TracePrimaryRay(Ray ray, Scene scene)
{
IntersectInfo primaryRayIntersection = new IntersectInfo();
foreach (IRayTraceable shapeToTest in scene.shapes)
{
IntersectInfo info = shapeToTest.GetClosestIntersection(ray);
if (info != null && info.hitType != IntersectionType.None && info.distanceToHit < primaryRayIntersection.distanceToHit && info.distanceToHit >= 0)
{
primaryRayIntersection = info;
}
}
return primaryRayIntersection;
}
public void FullyTraceRayBundle(RayBundle rayBundle, IntersectInfo[] intersectionsForBundle, Scene scene)
{
TracePrimaryRayBundle(rayBundle, intersectionsForBundle, scene);
for (int i = 0; i < rayBundle.rayArray.Length; i++)
{
IntersectInfo primaryInfo = TracePrimaryRay(rayBundle.rayArray[i], scene);
if (intersectionsForBundle[i].hitType != IntersectionType.None)
{
intersectionsForBundle[i].totalColor = CreateAndTraceSecondaryRays(primaryInfo, rayBundle.rayArray[i], scene, 0);
}
intersectionsForBundle[i].totalColor = scene.background.Color;
}
}
public RGBA_Floats FullyTraceRay(Ray ray, Scene scene)
{
IntersectInfo primaryInfo = TracePrimaryRay(ray, scene);
if (primaryInfo.hitType != IntersectionType.None)
{
RGBA_Floats totalColor = CreateAndTraceSecondaryRays(primaryInfo, ray, scene, 0);
return totalColor;
}
return scene.background.Color;
}
public void AntiAliasScene(Graphics2D graphics2D, RectangleInt viewport, Scene scene, RGBA_Floats[][] buffer, int maxSamples)
{
IImageByte destImage = (IImageByte)graphics2D.DestImage;
if (destImage.BitDepth != 32)
{
throw new Exception("We can only render to 32 bit dest at the moment.");
}
Byte[] destBuffer = destImage.GetBuffer();
#if MULTI_THREAD
System.Threading.Tasks.Parallel.For(1, viewport.Height - 1, y => //
#else
for (int y = 1; y < viewport.Height - 1; y++)
#endif
{
int fillY = viewport.Top - (viewport.Bottom + y);
int bufferOffset = 0;
if (y > 0 && y < destImage.Height)
{
bufferOffset = destImage.GetBufferOffsetY(y);
}
for (int x = 1; x < viewport.Width - 1; x++)
{
RGBA_Floats avg = (buffer[x - 1][y - 1] + buffer[x][y - 1] + buffer[x + 1][y - 1] +
buffer[x - 1][y] + buffer[x][y] + buffer[x + 1][y] +
buffer[x - 1][y + 1] + buffer[x][y + 1] + buffer[x + 1][y + 1]) / 9;
// use a more accurate antialasing method (MonteCarlo implementation)
// this will fire multiple rays per pixel
double sumOfDifferencesThreshold = .05; // TODO: figure out a good way to determin this.
if (avg.SumOfDistances(buffer[x][y]) > sumOfDifferencesThreshold)
{
RGBA_Floats accumulatedColor = buffer[x][y];
for (int i = 0; i < maxSamples; i++)
{
// get some 'random' samples
double rx = Math.Sign(i % 4 - 1.5) * (IntNoise(x + y * viewport.Width * maxSamples * 2 + i) + 1) / 4;
double ry = Math.Sign(i % 2 - 0.5) * (IntNoise(x + y * viewport.Width * maxSamples * 2 + 1 + i) + 1) / 4;
double xp = x + rx;
double yp = y + ry;
Ray ray = scene.camera.GetRay(xp, yp);
accumulatedColor += FullyTraceRay(ray, scene);
}
buffer[x][y] = accumulatedColor / (maxSamples + 1);
// this is the slow part of the painting algorithm, it can be greatly speed up
// by directly accessing the bitmap data
int fillX = viewport.Left + x;
int totalOffset = bufferOffset + fillX * 4;
destBuffer[totalOffset++] = (byte)buffer[x][y].Blue0To255;
destBuffer[totalOffset++] = (byte)buffer[x][y].Green0To255;
destBuffer[totalOffset++] = (byte)buffer[x][y].Red0To255;
destBuffer[totalOffset] = 255;
}
}
}
#if MULTI_THREAD
);
#endif
}
public void RayTraceScene(Graphics2D graphics2D, RectangleInt viewport, Scene scene)
{
int maxsamples = (int)AntiAliasing;
//graphics2D.FillRectangle(viewport, RGBA_Floats.Black);
if (imageBufferAsDoubles == null || imageBufferAsDoubles.Length < viewport.Width || imageBufferAsDoubles[0].Length < viewport.Height)
{
imageBufferAsDoubles = new RGBA_Floats[viewport.Width][];
for (int i = 0; i < viewport.Width; i++)
{
imageBufferAsDoubles[i] = new RGBA_Floats[viewport.Height];
}
}
IImageByte destImage = (IImageByte)graphics2D.DestImage;
if (destImage.BitDepth != 32)
{
throw new Exception("We can only render to 32 bit dest at the moment.");
}
Byte[] destBuffer = destImage.GetBuffer();
viewport.Bottom = Math.Max(0, Math.Min(destImage.Height, viewport.Bottom));
viewport.Top = Math.Max(0, Math.Min(destImage.Height, viewport.Top));
#if MULTI_THREAD
System.Threading.Tasks.Parallel.For(viewport.Bottom, viewport.Height, y => //
#else
for (int y = viewport.Bottom; y < viewport.Height; y++)
#endif
{
for (int x = viewport.Left; x < viewport.Right; x++)
{
if (traceWithRayBundles)
{
int width = Math.Min(8, viewport.Right - x);
int height = Math.Min(8, viewport.Top - y);
FrustumRayBundle rayBundle = new FrustumRayBundle(width * height);
IntersectInfo[] intersectionsForBundle = new IntersectInfo[width * height];
for (int rayY = 0; rayY < height; rayY++)
{
for (int rayX = 0; rayX < width; rayX++)
{
rayBundle.rayArray[rayX + rayY * width] = scene.camera.GetRay(x + rayX, y + rayY);
intersectionsForBundle[rayX + rayY * width] = new IntersectInfo();
}
}
rayBundle.CalculateFrustum(width, height, scene.camera.Origin);
FullyTraceRayBundle(rayBundle, intersectionsForBundle, scene);
for (int rayY = 0; rayY < height; rayY++)
{
int bufferOffset = destImage.GetBufferOffsetY(y + rayY);
for (int rayX = 0; rayX < width; rayX++)
{
imageBufferAsDoubles[x + rayX][y + rayY] = intersectionsForBundle[rayX + rayY * width].totalColor;
// we don't need to set this if we are anti-aliased
int totalOffset = bufferOffset + (x + rayX) * 4;
destBuffer[totalOffset++] = (byte)imageBufferAsDoubles[x + rayX][y + rayY].Blue0To255;
destBuffer[totalOffset++] = (byte)imageBufferAsDoubles[x + rayX][y + rayY].Green0To255;
destBuffer[totalOffset++] = (byte)imageBufferAsDoubles[x + rayX][y + rayY].Red0To255;
destBuffer[totalOffset] = 255;
}
}
x += width - 1; // skip all the pixels we bundled
y += height - 1; // skip all the pixels we bundled
}
else
{
int bufferOffset = destImage.GetBufferOffsetY(y);
Ray ray = scene.camera.GetRay(x, y);
imageBufferAsDoubles[x][y] = FullyTraceRay(ray, scene);
// we don't need to set this if we are anti-aliased
int totalOffset = bufferOffset + x * 4;
destBuffer[totalOffset++] = (byte)imageBufferAsDoubles[x][y].Blue0To255;
destBuffer[totalOffset++] = (byte)imageBufferAsDoubles[x][y].Green0To255;
destBuffer[totalOffset++] = (byte)imageBufferAsDoubles[x][y].Red0To255;
destBuffer[totalOffset] = 255;
}
}
}
#if MULTI_THREAD
);
#endif
if (AntiAliasing != AntiAliasing.None)
{
AntiAliasScene(graphics2D, viewport, scene, imageBufferAsDoubles, (int)AntiAliasing);
}
destImage.MarkImageChanged();
}
public void AntiAliasScene(RectangleInt viewport, Scene scene, RGBA_Floats[][] imageBufferAsDoubles, int maxSamples)
{
#if MULTI_THREAD
System.Threading.Tasks.Parallel.For(1, viewport.Height - 1, y => //
#else
for (int y = 1; y < viewport.Height - 1; y++)
#endif
{
int fillY = viewport.Top - (viewport.Bottom + y);
for (int x = 1; x < viewport.Width - 1; x++)
{
RGBA_Floats avg = (imageBufferAsDoubles[x - 1][y - 1] + imageBufferAsDoubles[x][y - 1] + imageBufferAsDoubles[x + 1][y - 1] +
imageBufferAsDoubles[x - 1][y] + imageBufferAsDoubles[x][y] + imageBufferAsDoubles[x + 1][y] +
imageBufferAsDoubles[x - 1][y + 1] + imageBufferAsDoubles[x][y + 1] + imageBufferAsDoubles[x + 1][y + 1]) / 9;
// use a more accurate antialasing method (MonteCarlo implementation)
// this will fire multiple rays per pixel
double sumOfDifferencesThreshold = .05; // TODO: figure out a good way to determin this.
if (avg.SumOfDistances(imageBufferAsDoubles[x][y]) > sumOfDifferencesThreshold)
{
RGBA_Floats accumulatedColor = imageBufferAsDoubles[x][y];
for (int i = 0; i < maxSamples; i++)
{
// get some 'random' samples
double rx = Math.Sign(i % 4 - 1.5) * (IntNoise(x + y * viewport.Width * maxSamples * 2 + i) + 1) / 4;
double ry = Math.Sign(i % 2 - 0.5) * (IntNoise(x + y * viewport.Width * maxSamples * 2 + 1 + i) + 1) / 4;
double xp = x + rx;
double yp = y + ry;
Ray ray = scene.camera.GetRay(xp, yp);
IntersectInfo primaryInfo;
accumulatedColor += FullyTraceRay(ray, scene, out primaryInfo);
}
imageBufferAsDoubles[x][y] = accumulatedColor / (maxSamples + 1);
}
}
}
#if MULTI_THREAD
);
#endif
}
public void RayTraceScene(RectangleInt viewport, Scene scene)
{
int maxsamples = (int)AntiAliasing;
//graphics2D.FillRectangle(viewport, RGBA_Floats.Black);
if (colorBuffer == null || colorBuffer.Length < viewport.Width || colorBuffer[0].Length < viewport.Height)
{
colorBuffer = new RGBA_Floats[viewport.Width][];
for (int i = 0; i < viewport.Width; i++)
{
colorBuffer[i] = new RGBA_Floats[viewport.Height];
}
normalBuffer = new Vector3[viewport.Width][];
for (int i = 0; i < viewport.Width; i++)
{
normalBuffer[i] = new Vector3[viewport.Height];
}
depthBuffer = new double[viewport.Width][];
for (int i = 0; i < viewport.Width; i++)
{
depthBuffer[i] = new double[viewport.Height];
}
}
#if MULTI_THREAD
System.Threading.Tasks.Parallel.For(viewport.Bottom, viewport.Height, y => //
#else
for (int y = viewport.Bottom; y < viewport.Height; y++)
#endif
{
for (int x = viewport.Left; x < viewport.Right; x++)
{
if (traceWithRayBundles)
{
int width = Math.Min(8, viewport.Right - x);
int height = Math.Min(8, viewport.Top - y);
FrustumRayBundle rayBundle = new FrustumRayBundle(width * height);
IntersectInfo[] intersectionsForBundle = new IntersectInfo[width * height];
for (int rayY = 0; rayY < height; rayY++)
{
for (int rayX = 0; rayX < width; rayX++)
{
rayBundle.rayArray[rayX + rayY * width] = scene.camera.GetRay(x + rayX, y + rayY);
intersectionsForBundle[rayX + rayY * width] = new IntersectInfo();
}
}
// get a ray to find the origin (every ray comes from the camera and should have the same origin)
Ray screenRay = scene.camera.GetRay(0, 0);
rayBundle.CalculateFrustum(width, height, screenRay.origin);
FullyTraceRayBundle(rayBundle, intersectionsForBundle, scene);
for (int rayY = 0; rayY < height; rayY++)
{
for (int rayX = 0; rayX < width; rayX++)
{
colorBuffer[x + rayX][y + rayY] = intersectionsForBundle[rayX + rayY * width].totalColor;
}
}
x += width - 1; // skip all the pixels we bundled
y += height - 1; // skip all the pixels we bundled
}
else
{
Ray ray = scene.camera.GetRay(x, y);
IntersectInfo primaryInfo;
colorBuffer[x][y] = FullyTraceRay(ray, scene, out primaryInfo);
if (false)
{
if (primaryInfo != null)
{
normalBuffer[x][y] = primaryInfo.normalAtHit;
depthBuffer[x][y] = primaryInfo.distanceToHit;
}
else
{
normalBuffer[x][y] = Vector3.UnitZ;
depthBuffer[x][y] = double.PositiveInfinity;
}
}
}
}
}
#if MULTI_THREAD
);
#endif
if (AntiAliasing != AntiAliasing.None)
{
AntiAliasScene(viewport, scene, colorBuffer, (int)AntiAliasing);
}
}
private void SetupScene2()
{
scene = new Scene();
scene.Background = new Background(new RGBA_Doubles(.2, .3, .4), 0.5);
Vector campos = new Vector(0, 0, -5);
scene.Camera = new Camera(campos, campos / -2, new Vector(0, 1, 0).Normalize());
Random rnd = new Random();
for (int i = 0; i < 40; i++)
{
// setup a solid reflecting sphere
scene.Shapes.Add(new SphereShape(new Vector(rnd.Next(-100, 100) / 50.0, rnd.Next(-100, 100) / 50.0, rnd.Next(0, 200) / 50.0), .2,
new SolidMaterial(new RGBA_Doubles(rnd.Next(0, 100) / 100.0, rnd.Next(0, 100) / 100.0, rnd.Next(0, 100) / 100.0), 0.4, 0.0, 2.0)));
}
scene.Lights.Add(new Light(new Vector(5, 10, -1), new RGBA_Doubles(0.8, 0.8, 0.8)));
scene.Lights.Add(new Light(new Vector(-3, 5, -15), new RGBA_Doubles(0.8, 0.8, 0.8)));
}
// metallic box with marble on stone floor
private void SetupScene4()
{
TextureMaterial woodMaterial = new TextureMaterial(woodTexture, 0.0, 0.0, 2, .5);
TextureMaterial marbleMaterial = new TextureMaterial(marbleTexture, 0.3, 0.0, 2, .5);
TextureMaterial wallMaterial = new TextureMaterial(wallTexture, 0.0, 0.0, 2, .4);
scene = new Scene();
scene.Background = new Background(new RGBA_Doubles(.3, .8, .8), 0.8);
Vector campos = new Vector(14, 2, -6);
scene.Camera = new Camera(campos, campos / -2.5, new Vector(-0, 1, 0.1).Normalize());
// marble
scene.Shapes.Add(new SphereShape(new Vector(-3, 1, 5), 2,
marbleMaterial));
// box
scene.Shapes.Add(new BoxShape(new Vector(0, 1, -1), new Vector(1, 0, 0),
woodMaterial));
//floor
scene.Shapes.Add(new PlaneShape(new Vector(0, 1, 0).Normalize(), 0, wallMaterial));
//wall
//scene.Shapes.Add(new PlaneShape(new Vector(0, 0, 1).Normalize(), 0, wallMaterial));
scene.Lights.Add(new Light(new Vector(25, 20, -20), new RGBA_Doubles(0.5, 0.5, 0.5)));
scene.Lights.Add(new Light(new Vector(-23, 25, -15), new RGBA_Doubles(0.5, 0.5, 0.5)));
}
private void SetupScene3()
{
scene = new Scene();
scene.Camera = new Camera(new Vector(0, 0, -15), new Vector(-.2, 0, 5), new Vector(0, 1, 0));
scene.Background = new Background(new RGBA_Doubles(0.5, .5, .5), 0.4);
// setup a solid reflecting sphere
scene.Shapes.Add(new SphereShape(new Vector(-0.5, 0.5, -2), 1.5,
new SolidMaterial(new RGBA_Doubles(0, .5, .5), 0.3, 0.0, 2.0)));
// setup the chessboard floor
scene.Shapes.Add(new PlaneShape(new Vector(0.1, 0.9, -0.5).Normalize(), 1.2,
new ChessboardMaterial(new RGBA_Doubles(1, 1, 1), new RGBA_Doubles(0, 0, 0), 0.2, 0, 1, 0.7)));
//add two lights for better lighting effects
scene.Lights.Add(new Light(new Vector(5, 10, -1), new RGBA_Doubles(0.8, 0.8, 0.8)));
scene.Lights.Add(new Light(new Vector(-3, 5, -15), new RGBA_Doubles(0.8, 0.8, 0.8)));
}