private void Form02OrderIndependentTransparency_Load(object sender, EventArgs e)
{
{
var camera = new Camera(CameraType.Perspecitive, this.glCanvas1.Width, this.glCanvas1.Height);
camera.Position = new vec3(0, 0, 5);
camera.Target = new vec3(0, 0, 0);
camera.UpVector = new vec3(0, 1, 0);
var rotator = new SatelliteRotator(camera);
this.camera = camera;
this.rotator = rotator;
}
{
var shaderCodes = new ShaderCode[2];
shaderCodes[0] = new ShaderCode(File.ReadAllText(@"12Billboard\Cube.vert"), ShaderType.VertexShader);
shaderCodes[1] = new ShaderCode(File.ReadAllText(@"12Billboard\Cube.frag"), ShaderType.FragmentShader);
var map = new PropertyNameMap();
map.Add("in_Position", "position");
map.Add("in_Color", "color");
var cubeRenderer = new PickableRenderer(new Cube(), shaderCodes, map, "position");
cubeRenderer.Initialize();
this.cubeRenderer = cubeRenderer;
}
{
var shaderCodes = new ShaderCode[2];
shaderCodes[0] = new ShaderCode(File.ReadAllText(@"12Billboard\billboard.vert"), ShaderType.VertexShader);
shaderCodes[1] = new ShaderCode(File.ReadAllText(@"12Billboard\billboard.frag"), ShaderType.FragmentShader);
var map = new PropertyNameMap();
map.Add("squareVertices", "position");
var billboardRenderer = new Renderer(new BillboardModel(), shaderCodes, map);
billboardRenderer.Initialize();
var texture = new sampler2D();
var bitmap = new Bitmap(@"12Billboard\ExampleBillboard.png");
texture.Initialize(bitmap);
bitmap.Dispose();
billboardRenderer.SetUniform("myTextureSampler", new samplerValue(BindTextureTarget.Texture2D, texture.Id, OpenGL.GL_TEXTURE0));
this.billboardRenderer = billboardRenderer;
}
{
var UIRoot = new GLControl(this.glCanvas1.Size, -100, 100);
UIRoot.Initialize();
this.uiRoot = UIRoot;
var glAxis = new GLAxis(AnchorStyles.Right | AnchorStyles.Bottom,
new Padding(3, 3, 3, 3), new Size(70, 70), -100, 100);
glAxis.Initialize();
this.glAxis = glAxis;
UIRoot.Controls.Add(glAxis);
}
{
var frmPropertyGrid = new FormProperyGrid();
frmPropertyGrid.DisplayObject(this.glAxis);
frmPropertyGrid.Show();
this.formPropertyGrid = frmPropertyGrid;
}
}
public sampler2D GetTexture2D(Bitmap bitmap)
{
sampler2D result;
if (!this.dict.TryGetValue(bitmap, out result))
{
result = new sampler2D();
result.Initialize(bitmap);
this.dict.Add(bitmap, result);
}
return(result);
}
protected override void DoInitialize()
{
{
// This is the texture that the compute program will write into
sampler2D texture = new sampler2D();
var bitmap = new System.Drawing.Bitmap(@"Images\star.png");
texture.Initialize(bitmap);
bitmap.Dispose();
this.sprite_texture[0] = texture.Id;
}
base.DoInitialize();
this.SetUniform("sprite_texture", new samplerValue(
BindTextureTarget.Texture2D, this.sprite_texture[0], OpenGL.GL_TEXTURE0));
this.SetUniform("factor", 25000.0f);
}
internal void UpdateTexture(string filename)
{
// This is the texture that the compute program will write into
sampler2D texture = new sampler2D();
var bitmap = new System.Drawing.Bitmap(filename);
texture.Initialize(bitmap);
bitmap.Dispose();
var old = new uint[1];
old[0] = this.sprite_texture[0];
this.sprite_texture[0] = texture.Id;
this.SetUniform("sprite_texture", new samplerValue(
BindTextureTarget.Texture2D, this.sprite_texture[0], OpenGL.GL_TEXTURE0));
OpenGL.DeleteTextures(1, old);
}
protected override void DoInitialize()
{
{
// This is the texture that the compute program will write into
OpenGL.GenTextures(1, sprite_texture);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, sprite_texture[0]);
OpenGL.TexStorage2D(TexStorage2DTarget.Texture2D, 8, OpenGL.GL_RGBA32F, 256, 256);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, 0);
sampler2D texture = new sampler2D();
var bitmap = new System.Drawing.Bitmap(@"07Billboard\star.png");
texture.Initialize(bitmap);
this.sprite_texture[0] = texture.Id;
bitmap.Dispose();
}
base.DoInitialize();
this.SetUniform("sprite_texture", new samplerValue(
BindTextureTarget.Texture2D, this.sprite_texture[0], OpenGL.GL_TEXTURE0));
this.SetUniform("factor", 100.0f);
}
protected extern vec4 textureProjGradOffset(sampler2D sampler, vec4 p, vec2 dPdx, vec2 dPdy, ivec2 offset);
/// <summary>Do a texture lookup with both explicit gradient and offset, as described in textureGrad and textureOffset. </summary>
protected static vec4 textureGradOffset(sampler2D sampler, vec2 P, vec2 dPdx, vec2 dPdy, ivec2 offset)
{
throw _invalidAccess;
}
protected float4 Texture2D(sampler2D sampler, float2 coord)
{
return(new float4(1, 1, 1, 1));
}
public static vec4 texture(sampler2D texture, vec2 uv)
{
return(null);
}
public override void Begin()
{
base.Begin();
PermSampler2D = BindTexture(_perm2D).ToSampler();
PermGradSampler = BindTexture(_permGrad3).ToSampler();
}
protected vec4 texture2DProjLod(sampler2D sampler, vec4 coord, float lod) { throw new NotImplementedException(); }
public override void Begin()
{
base.Begin();
PermSampler2D = BindTexture(_perm2D).ToSampler();
PermGradSampler = BindTexture(_permGrad3).ToSampler();
}
protected vec4 texture2DProj(sampler2D sampler, vec3 coord, float bias)
{
throw new NotImplementedException();
}
protected extern vec4 textureLod(sampler2D sampler, vec2 p, float lod);
protected extern vec4 textureProjLodOffset(sampler2D sampler, vec4 p, float lod, ivec2 offset);
protected extern vec4 textureProj(sampler2D sampler, vec4 p, float bias = 0);
protected extern ivec2 textureSize(sampler2D sampler, int lod);
protected extern vec4 texture(sampler2D sampler, vec2 p, float bias = 0);
/// <summary> Do an offset texture lookup with explicit LOD. See textureLod and textureOffset.</summary>
protected static vec4 textureLodOffset(sampler2D sampler, vec2 P, float lod, ivec2 offset)
{
throw _invalidAccess;
}
/// <summary>Do a texture lookup with projection. The texture coordinates consumed from P,
/// not including the last component of P, are divided by the last component of P.
/// After these values are computed,texture lookup proceeds as in texture.</summary>
protected internal static vec4 TextureProj(sampler2D sampler, vec4 P)
{
throw _invalidAccess;
}
public static vec4 texture(Location location, sampler2D sampler, vec2 P, float bias = 0)
{
return(texturef(location, sampler.i, P.x, P.y, 0, 0, GetPName.TextureBinding2D));
}
/// <summary>Do a texture lookup projectively and with explicit gradient as described in TextureProjGrad,
/// as well as with offset, as described in TextureOffset.</summary>
protected internal static vec4 TextureProjGradOffset(sampler2D sampler, vec4 P, vec2 dPdx, vec2 dPdy, ivec2 offset)
{
throw _invalidAccess;
}
protected vec4 texture2D(sampler2D sampler, vec2 coord)
{
throw new NotImplementedException();
}
/// <summary> Do an offset texture lookup with explicit LOD. See TextureLod and TextureOffset.</summary>
protected internal static vec4 TextureProjLod(sampler2D sampler, vec3 P, float lod)
{
throw _invalidAccess;
}
public override void Begin()
{
base.Begin();
WangTiles = BindTexture(Tiles).ToSampler();
WangMap = BindTexture(WangTable).ToSampler(); ;
}
/// <summary> Do an offset texture lookup with explicit LOD. See TextureLod and TextureOffset.</summary>
protected internal static vec4 TextureProjLodOffset(sampler2D sampler, vec4 P, float lod, ivec2 offset)
{
throw _invalidAccess;
}
public static vec4 texture(sampler2D tex, vec2 coord)
{
throw new NotImplementedException();
}
/// <summary> Do a projective texture lookup as described in TextureProj offset by offset as described in TextureOffset. </summary>
protected internal static vec4 TextureProjOffset(sampler2D sampler, vec4 P, ivec2 offset, float bias)
{
throw _invalidAccess;
}
protected extern vec4 textureProjLod(sampler2D sampler, vec4 p, float lod);
/// <summary>
/// Returns the mipmap array(s) that would be accessed in the x component of the return value.
/// Returns the computed level of detail relative to the base level in the y component of the return value.
/// If called on an incomplete texture, the results are undefined.
/// </summary>
protected internal static vec2 TextureQueryLod(sampler2D sampler, vec2 P)
{
throw _invalidAccess;
}
protected extern vec4 textureLodOffset(sampler2D sampler, vec2 p, int lod, ivec2 offset);
protected internal static ivec2 TextureSize(sampler2D sampler, int lod)
{
throw _invalidAccess;
}
protected static vec4 texture2D(sampler2D sampler, vec2 st, float bias)
{
throw _invalidAccess;
}
/// <summary>Use the texture coordinate P to do a texture lookup in the texture currently bound to sampler.</summary>
protected internal static vec4 Texture(sampler2D sampler, vec2 P, float bias)
{
throw _invalidAccess;
}
/// <summary>
/// Use integer texture coordinate P to lookup a single texel from sampler.
/// The level-ofdetail lod is as described in sections 2.11.8 “Shader Execution”
/// under Texel Fetches and 3.8 “Texturing” of the OpenGL GraphicsSystem Specification.
/// </summary>
protected static vec4 texelFetch(sampler2D sampler, ivec2 P, int lod)
{
throw _invalidAccess;
}
/// <summary> Do a texture lookup as in texture but with offset added to the (u,v,w) texel coordinates before looking up each texel.
/// The offset value must be a constant expression. A limited range of offset values are supported;
/// the minimum and maximum offset values are implementation-dependent and given by MIN_PROGRAM_TEXEL_OFFSET and MAX_PROGRAM_TEXEL_OFFSET, respectively.
/// Note that offset does not apply to the layer coordinate for texture arrays. This is explained in detail in section 3.8.11
/// “Texture Minification” of the OpenGL Graphics System Specification, where offset is (∂u ,∂v ,∂w).
/// </summary>
protected internal static vec4 TextureOffset(sampler2D sampler, vec2 P, ivec2 offset)
{
throw _invalidAccess;
}
/// <summary> Do a texture lookup as in texture but with offset added to the (u,v,w) texel coordinates before looking up each texel.
/// The offset value must be a constant expression. A limited range of offset values are supported;
/// the minimum and maximum offset values are implementation-dependent and given by MIN_PROGRAM_TEXEL_OFFSET and MAX_PROGRAM_TEXEL_OFFSET, respectively.
/// Note that offset does not apply to the layer coordinate for texture arrays. This is explained in detail in section 3.8.11
/// “Texture Minification” of the OpenGL Graphics System Specification, where offset is (∂u ,∂v ,∂w).
/// </summary>
protected static vec4 textureOffset(sampler2D sampler, vec2 P, ivec2 offset, float bias)
{
throw _invalidAccess;
}
/// <summary>Do a texture lookup with projection. The texture coordinates consumed from P,
/// not including the last component of P, are divided by the last component of P.
/// After these values are computed,texture lookup proceeds as in texture.</summary>
protected static vec4 textureProj(sampler2D sampler, vec3 P)
{
throw _invalidAccess;
}
public static vec4 texelFetch(Location location, sampler2D sampler, ivec2 P, int lod)
{
return(Shader.TraceFunction(location, new vec4(texelFetch <float>(location, sampler.i, P.x, P.y, 0, lod, GetPName.TextureBinding2D)), "texelFetch"));
}
/// <summary>Do a texture lookup with projection. The texture coordinates consumed from P,
/// not including the last component of P, are divided by the last component of P.
/// After these values are computed,texture lookup proceeds as in texture.</summary>
protected static vec4 textureProj(sampler2D sampler, vec4 P, float bias)
{
throw _invalidAccess;
}
protected vec4 texture2DProjLod(sampler2D sampler, vec4 coord, float lod)
{
throw new NotImplementedException();
}
/// <summary>Do a texture lookup both projectively, as described in textureProj, and with explicit gradient as
/// described in textureGrad. The partial derivatives dPdx and dPdy are assumed to be already projected.</summary>
protected static vec4 textureProjGrad(sampler2D sampler, vec4 P, vec2 dPdx, vec2 dPdy)
{
throw _invalidAccess;
}
void FormMain_Load(object sender, EventArgs e)
{
{
var camera = new Camera(
new vec3(0, 0, (float)(Earth.revolutionRadius * 1.1)),
new vec3(0, 0, 0),
new vec3(0, 1, 0),
CameraType.Perspecitive, this.glCanvas1.Width, this.glCanvas1.Height);
IPerspectiveViewCamera perspecitve = camera;
perspecitve.Near = 1;
perspecitve.Far = Earth.revolutionRadius * 5;
var rotator = new SatelliteRotator(camera);
this.camera = camera;
this.rotator = rotator;
}
{
const int latitude = 180; //从南到北，纬度共有180°
const int hour = 24; //24小时，24个时区
const int longitudePerHour = 15; // 每个时区占有的经度为15°
const int longitude = hour * longitudePerHour; // 从东到西，经度共有360°
IBufferable bufferable = new CelestialBody(1, latitude, longitude);
var shaderCodes = new ShaderCode[2];
shaderCodes[0] = new ShaderCode(File.ReadAllText(@"shaders\CelestialBody.vert"), ShaderType.VertexShader);
shaderCodes[1] = new ShaderCode(File.ReadAllText(@"shaders\CelestialBody.frag"), ShaderType.FragmentShader);
var map = new PropertyNameMap();
map.Add("inPosition", CelestialBody.strPosition);
map.Add("inUV", CelestialBody.strUV);
var earthRenderer = new PickableRenderer(bufferable, shaderCodes, map, CelestialBody.strPosition);
earthRenderer.Initialize();
earthRenderer.Name = "Earth 地球";
this.earthRenderer = earthRenderer;
}
{
// Ecliptic: 黄道
IBufferable bufferable = new Circle((float)Earth.revolutionRadius);
var shaderCodes = new ShaderCode[2];
shaderCodes[0] = new ShaderCode(File.ReadAllText(@"shaders\Circle.vert"), ShaderType.VertexShader);
shaderCodes[1] = new ShaderCode(File.ReadAllText(@"shaders\Circle.frag"), ShaderType.FragmentShader);
var map = new PropertyNameMap();
map.Add("inPosition", Circle.strPosition);
var eclipticRenderer = new Renderer(bufferable, shaderCodes, map);
eclipticRenderer.Initialize();
eclipticRenderer.Name = "Ecliptic 黄道";
this.eclipticRenderer = eclipticRenderer;
}
{
const int latitude = 180; //从南到北，纬度共有180°
const int hour = 24; //24小时，24个时区
const int longitudePerHour = 15; // 每个时区占有的经度为15°
const int longitude = hour * longitudePerHour; // 从东到西，经度共有360°
IBufferable bufferable = new CelestialBody((float)Sun.radius, latitude, longitude);
var shaderCodes = new ShaderCode[2];
shaderCodes[0] = new ShaderCode(File.ReadAllText(@"shaders\Sun.vert"), ShaderType.VertexShader);
shaderCodes[1] = new ShaderCode(File.ReadAllText(@"shaders\Sun.frag"), ShaderType.FragmentShader);
var map = new PropertyNameMap();
map.Add("inPosition", CelestialBody.strPosition);
var sunRenderer = new PickableRenderer(bufferable, shaderCodes, map, CelestialBody.strPosition);
sunRenderer.Initialize();
sunRenderer.Name = "Sun 太阳";
this.sunRenderer = sunRenderer;
}
{
var sunshineRenderer = new SunshineRenderer();
this.sunshineRenderer = sunshineRenderer;
}
{
var backgroundStars = new BackgroundStarsRenderer(2000, Earth.revolutionRadius);
backgroundStars.Initialize();
backgroundStars.Name = "stars 星星";
this.backgroundStars = backgroundStars;
}
{
var glAxis = new GLAxis(AnchorStyles.Left | AnchorStyles.Bottom,
new Padding(5, 5, 5, 5), new Size(100, 100), -100, 100);
glAxis.Initialize();
this.glAxis = glAxis;
}
{
var uiRoot = new GLControl(this.glCanvas1.Size, -100, 100);
uiRoot.Initialize();
this.uiRoot = uiRoot;
}
{
this.uiRoot.Controls.Add(this.glAxis);
}
{
var earthColorTexture = new sampler2D();
var bitmap = new Bitmap(@"Images\earth-color-map-10800-5400.jpg");
earthColorTexture.Initialize(bitmap);
bitmap.Dispose();
this.earthColorTexture = earthColorTexture;
}
{
this.eclipticRenderer.SetUniform("color", new vec4(1.0f, 1.0f, 0.0f, 0.1f));
this.eclipticRenderer.SwitchList.Add(new PolygonModeSwitch(PolygonModes.Points));
}
{
this.earthRenderer.SetUniform("colorTexture", new samplerValue(BindTextureTarget.Texture2D, this.earthColorTexture.Id, OpenGL.GL_TEXTURE0));
//this.earthRenderer.SwitchList.Add(new CullFaceSwitch());
//this.sunRenderer.SwitchList.Add(new CullFaceSwitch());
}
{
var earth = new Earth();
this.earth = earth;
this.thingList.Add(earth);
}
{
var sun = new Sun();
this.sun = sun;
this.thingList.Add(sun);
}
{
var tracer = new CameraTracer(this.camera, this.earth, this.sun);
this.tracer = tracer;
this.thingList.Add(tracer);
}
{
var frmPropertyGrid = new FormProperyGrid();
frmPropertyGrid.DisplayObject(this);
frmPropertyGrid.Show();
}
{
var frmPropertyGrid = new FormProperyGrid();
frmPropertyGrid.DisplayObject(this.earthRenderer);
frmPropertyGrid.Show();
}
{
var frmPropertyGrid = new FormProperyGrid();
frmPropertyGrid.DisplayObject(this.sunRenderer);
frmPropertyGrid.Show();
}
{
var frmPropertyGrid = new FormProperyGrid();
frmPropertyGrid.DisplayObject(this.eclipticRenderer);
frmPropertyGrid.Show();
}
{
var frmPropertyGrid = new FormProperyGrid();
frmPropertyGrid.DisplayObject(this.tracer);
frmPropertyGrid.Show();
}
{
this.TimeSpeed = 14400;
}
}
/// <summary>Use the texture coordinate P to do a texture lookup in the texture currently bound to sampler.</summary>
protected internal static vec4 texture(sampler2D sampler, vec2 P)
{
throw _invalidAccess;
}
public static vec4 texture(sampler2D sampler, vec2 coord)
{
return(((SoftwareSampler2D)sampler).GetTexel(coord));
// return Program.GetTexturePixel(coord);
}
/// <summary> Fetch a single texel as in texelFetch offset by offset as described in textureOffset. </summary>
protected static vec4 texelFetchOffset(sampler2D sampler, ivec2 P, int lod, ivec2 offset)
{
throw _invalidAccess;
}
protected vec4 texture2DProj(sampler2D sampler, vec3 coord, float bias) { throw new NotImplementedException(); }
/// <summary> Do an offset texture lookup with explicit LOD. See textureLod and textureOffset.</summary>
protected static vec4 textureProjLod(sampler2D sampler, vec4 P, float lod)
{
throw _invalidAccess;
}
protected vec4 texture2D(sampler2D sampler, vec2 coord) { throw new NotImplementedException(); }
/// <summary> Do a projective texture lookup as described in textureProj offset by offset as described in textureOffset. </summary>
protected static vec4 textureProjOffset(sampler2D sampler, vec4 P, ivec2 offset)
{
throw _invalidAccess;
}
protected float4 Texture2DProjLod(sampler2D sampler, float4 coord, float lod)
{
return(new float4(1, 1, 1, 1));
}
/// <summary>
/// Returns the mipmap array(s) that would be accessed in the x component of the return value.
/// Returns the computed level of detail relative to the base level in the y component of the return value.
/// If called on an incomplete texture, the results are undefined.
/// </summary>
protected static vec2 textureQueryLod(sampler2D sampler, vec2 P)
{
throw _invalidAccess;
}
protected float4 Texture2DProj(sampler2D sampler, float4 coord, float bias)
{
return(new float4(1, 1, 1, 1));
}
protected extern vec4 textureProjOffset(sampler2D sampler, vec4 p, ivec2 offset, float bias = 0);
public static vec4 texture(sampler2D texture, vec2 uv)
{
throw new NotNeedToImplementException();
}
/// <summary> Do a texture lookup as in texture but with explicit gradients.
/// The partial derivatives of P are with respect to window x and window y.
/// ∂s/∂x = ∂P.s/∂x; ∂s/∂y = ∂P.s/∂y; ∂t/∂x = ∂P.t/∂x; ∂t/∂y = ∂P.t/∂y; ∂r/∂x = 0; ∂r/∂y = 0;</summary>
protected internal static vec4 textureGrad(sampler2D sampler, vec2 P, vec2 dPdx, vec2 dPdy)
{
throw _invalidAccess;
}
public static vec4 texture2D(sampler2D simplexTexture, vec2 sindex)
{
return(null);
}
/// <summary>
/// Do a texture lookup as in texture but with explicit LOD; lod specifies λbase and sets the partial derivatives as follows.
/// (See section 3.8.11 “Texture Minification” and equation 3.17 in the OpenGL Graphics SystemSpecification.)
/// ∂u/∂x = 0; ∂v/∂x = 0; ∂w/∂x = 0; ∂u/∂y = 0; ∂v/∂y = 0; ∂w/∂y = 0;
/// </summary>
protected internal static vec4 textureLod(sampler2D sampler, vec2 P, float lod)
{
throw _invalidAccess;
}
protected static ivec2 textureSize(sampler2D sampler, int lod)
{
throw _invalidAccess;
}
protected extern vec4 textureProGrad(sampler2D sampler, vec4 p, vec2 dPdx, vec2 dPdy);
