private void AddReflectionTest()
{
var environmentMap = new TextureCubemap();
var images = new Bitmap[6] {
(Bitmap)Bitmap.FromFile("Resources\\Textures\\Cubemap\\xneg.png"),
(Bitmap)Bitmap.FromFile("Resources\\Textures\\Cubemap\\xpos.png"),
(Bitmap)Bitmap.FromFile("Resources\\Textures\\Cubemap\\yneg.png"),
(Bitmap)Bitmap.FromFile("Resources\\Textures\\Cubemap\\ypos.png"),
(Bitmap)Bitmap.FromFile("Resources\\Textures\\Cubemap\\zneg.png"),
(Bitmap)Bitmap.FromFile("Resources\\Textures\\Cubemap\\zpos.png"),
};
environmentMap.SetImages(images);
var mesh = Icosahedron.Create(0.4f, 3);
var material = new Material(MaterialType.RimReflectionDiffuseTextureColor, RenderQueue.Opaque);
material.Color = Vector4.Zero;
material.SetTexture("uniform_ReflectionTexture", environmentMap);
var so = new Node(_scene, "reflective");
var renderer = so.AddComponent <MeshRenderable>();
renderer.Material = material;
renderer.Mesh = mesh;
}
/// <summary>
/// Creates a <see cref="TextureCubemap"/> with the given files as texture image data.
/// </summary>
/// <param name="graphicsDevice">The <see cref="GraphicsDevice"/> the resource will use.</param>
/// <param name="imgNegX">An image file with the cubemap's negative X face.</param>
/// <param name="imgPosX">An image file with the cubemap's positive X face.</param>
/// <param name="imgNegY">An image file with the cubemap's negative Y face.</param>
/// <param name="imgPosY">An image file with the cubemap's positive Y face.</param>
/// <param name="imgNegZ">An image file with the cubemap's negative Z face.</param>
/// <param name="imgPosZ">An image file with the cubemap's positive Z face.</param>
/// <param name="generateMipmaps">Whether to generate mipmaps for the <see cref="TextureCubemap"/>.</param>
public static TextureCubemap FromFiles(GraphicsDevice graphicsDevice, string imgNegX, string imgPosX, string imgNegY, string imgPosY, string imgNegZ, string imgPosZ, bool generateMipmaps = false)
{
using Image <Rgba32> negx = Image.Load <Rgba32>(imgNegX);
if (negx.Width != negx.Height)
{
throw new InvalidOperationException("The width and height of all the images must be the same for a cubemap.");
}
TextureCubemap cubemap = new TextureCubemap(graphicsDevice, (uint)negx.Width);
try
{
cubemap.SetData(CubemapFace.NegativeX, negx);
cubemap.SetData(CubemapFace.PositiveX, imgPosX);
cubemap.SetData(CubemapFace.NegativeY, imgNegY);
cubemap.SetData(CubemapFace.PositiveY, imgPosY);
cubemap.SetData(CubemapFace.NegativeZ, imgNegZ);
cubemap.SetData(CubemapFace.PositiveZ, imgPosZ);
if (generateMipmaps)
{
cubemap.GenerateMipmaps();
}
return(cubemap);
}
catch
{
cubemap.Dispose();
throw;
}
}
/// <summary>
/// Sets the data of one of the <see cref="TextureCubemap"/>'s faces from an <see cref="Image{Rgba32}"/>.
/// </summary>
/// <param name="texture">The <see cref="TextureCubemap"/> to set data for.</param>
/// <param name="face">The face of the cubemap to set data for.</param>
/// <param name="image">The image with the pixel data to set.</param>
public static void SetData(this TextureCubemap texture, CubemapFace face, Image <Rgba32> image)
{
if (texture == null)
{
throw new ArgumentNullException(nameof(texture));
}
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
if (texture.ImageFormat != TextureImageFormat.Color4b)
{
throw new InvalidOperationException(nameof(TextureCubemap.ImageFormat) + " must be " + nameof(TextureImageFormat.Color4b) + " in order to do this");
}
if (image.Width != texture.Size || image.Height != texture.Size)
{
throw new InvalidOperationException("The width and height of the image must match " + nameof(TextureCubemap.Size));
}
if (!image.TryGetSinglePixelSpan(out Span <Rgba32> pixels))
{
throw new InvalidDataException(ImageUtils.ImageNotContiguousError);
}
texture.SetData <Rgba32>(face, pixels, PixelFormat.Rgba);
}
protected override void OnLoad()
{
inputManager = new InputManager3D(InputContext);
cubemap = TextureCubemapExtensions.FromFiles(
graphicsDevice,
"cubemap/back.png", "cubemap/front.png",
"cubemap/bottom.png", "cubemap/top.png",
"cubemap/left.png", "cubemap/right.png"
);
cubemap.SetTextureFilters(TextureMinFilter.Linear, TextureMagFilter.Linear);
shaderProgram = ShaderProgram.FromFiles <VertexPosition>(graphicsDevice, "vs.glsl", "fs.glsl", "vPosition");
shaderProgram.Uniforms["cubemap"].SetValueTexture(cubemap);
shaderProgram.Uniforms["World"].SetValueMat4(Matrix4x4.Identity);
viewUniform = shaderProgram.Uniforms["View"];
viewUniform.SetValueMat4(Matrix4x4.Identity);
Span <VertexPosition> vertexData = stackalloc VertexPosition[]
{
new Vector3(-0.5f, -0.5f, -0.5f), //4
new Vector3(-0.5f, -0.5f, 0.5f), //3
new Vector3(-0.5f, 0.5f, -0.5f), //7
new Vector3(-0.5f, 0.5f, 0.5f), //8
new Vector3(0.5f, 0.5f, 0.5f), //5
new Vector3(-0.5f, -0.5f, 0.5f), //3
new Vector3(0.5f, -0.5f, 0.5f), //1
new Vector3(-0.5f, -0.5f, -0.5f), //4
new Vector3(0.5f, -0.5f, -0.5f), //2
new Vector3(-0.5f, 0.5f, -0.5f), //7
new Vector3(0.5f, 0.5f, -0.5f), //6
new Vector3(0.5f, 0.5f, 0.5f), //5
new Vector3(0.5f, -0.5f, -0.5f), //2
new Vector3(0.5f, -0.5f, 0.5f), //1
};
vertexBuffer = new VertexBuffer <VertexPosition>(graphicsDevice, vertexData, BufferUsage.StaticDraw);
graphicsDevice.DepthTestingEnabled = false;
graphicsDevice.BlendingEnabled = false;
}
/// <summary>
/// Attaches a single face of the given cube map texture level to the an attachment point.
/// </summary>
/// <param name="target">The framebuffer target to bind to.</param>
/// <param name="attachment">The attachment point to attach to.</param>
/// <param name="texture">The texture to attach.</param>
/// <param name="face">The cube map face of the texture to attach.</param>
/// <param name="level">The level of the texture to attach.</param>
public void Attach(FramebufferTarget target, FramebufferAttachment attachment, TextureCubemap texture, int face, int level = 0)
{
Attach(target, attachment, (LayeredTexture)texture, face, level);
}
/// <summary>
/// Binds a single face of the given texture level to an image unit.
/// </summary>
/// <param name="imageUnit">The image unit to use.</param>
/// <param name="texture">The texture to bind.</param>
/// <param name="level">The mipmap level to bind.</param>
/// <param name="face">The cube map face to bind.</param>
/// <param name="access">Specifies the type of access allowed on the image.</param>
public void Bind(int imageUnit, TextureCubemap texture, int level, int face, TextureAccess access)
{
Bind(imageUnit, texture, level, false, face, access);
}
/// <summary>
/// Sets the data of one of the <see cref="TextureCubemap"/>'s faces from a file.
/// </summary>
/// <param name="texture">The <see cref="TextureCubemap"/> to set data for.</param>
/// <param name="face">The face of the cubemap to set data for.</param>
/// <param name="file">The file containing the image with the pixel data to set.</param>
public static void SetData(this TextureCubemap texture, CubemapFace face, string file)
{
using Image <Rgba32> image = Image.Load <Rgba32>(file);
SetData(texture, face, image);
}
/// <summary>
/// Sets the data of one of the <see cref="TextureCubemap"/>'s faces from a stream.
/// </summary>
/// <param name="texture">The <see cref="TextureCubemap"/> to set data for.</param>
/// <param name="face">The face of the cubemap to set data for.</param>
/// <param name="stream">The stream from which to load an image.</param>
public static void SetData(this TextureCubemap texture, CubemapFace face, Stream stream)
{
using Image <Rgba32> image = Image.Load <Rgba32>(stream);
SetData(texture, face, stream);
}