public float Distance(float2 v)
{
float2 delta = v - this;
float len = delta.Dot(delta);
return (float)System.Math.Sqrt((double)len);
}
// math functions
public float Dot(float2 v)
{
return (x * v.x) + (y * v.y);
}
public void MakeLatLonSphere2(int latDivs, int lonDivs)
{
List<VertexPNT> verts = new List<VertexPNT>();
List<int> faceTemp = new List<int>();
int index = 0;
for (int lat = -latDivs / 2; lat <= latDivs / 2; lat++)
{
for (int lon = 0; lon <= lonDivs; lon++)
{
float2 pos = new float2((float)lon / lonDivs, (float)lat / latDivs);
float2 radScale = new float2((float)(2 * Math.PI), (float)(Math.PI));
if ((lon != lonDivs) && (lat != latDivs /2))
{
int row = lonDivs + 1;
faceTemp.Add(index);
faceTemp.Add(index + row);
faceTemp.Add(index + 1);
faceTemp.Add(index + row);
faceTemp.Add(index + row + 1);
faceTemp.Add(index + 1);
}
float3 posXYZ = new float3();
VertexPNT v0 = new VertexPNT();
v0._pos = SphericalCoord(pos * radScale, out posXYZ);
v0.normal = posXYZ.Normalize();
v0.uv0 = new float2(1.0f-pos.x, pos.y + 0.5f);
verts.Add(v0);
index++;
}
}
int[] faceList = faceTemp.ToArray();// GenerateDefaultFaceList(verts);
indexBuffer = Buffer.Create(Global._G.device, BindFlags.IndexBuffer, faceList);
numIndexes = faceList.Length;
//public EffectPass pass;
//EffectTechnique technique = effect.GetTechniqueByIndex(0);
shaderName = "EarthRender";
technique = Global._G.effect.GetTechniqueByName(shaderName);
EffectPass pass = technique.GetPassByIndex(0);
var passSignature = pass.Description.Signature;
layout = new InputLayout(Global._G.device, passSignature, new[]
//ShaderSignature sig = ShaderSignature.GetInputSignature(Global._G.vertexShaderByteCode);
//layout = new InputLayout(Global._G.device, sig, new[]
{
new InputElement("POSITION", 0, Format.R32G32B32_Float, 0, 0),
new InputElement("NORMAL", 0, Format.R32G32B32_Float, 12, 0),
new InputElement("TEXCOORD", 0, Format.R32G32_Float, 12+12, 0)
});
vertices = Buffer.Create(Global._G.device, BindFlags.VertexBuffer, verts.ToArray());
//SharpDX.Direct3D11.Resource tex = Texture2D.FromFile<Texture2D>(Global._G.device, @"Content\world.200401.3x540x270.jpg");
////SharpDX.Direct3D11.Resource tex = Texture2D.FromFile<Texture2D>(Global._G.device, @"C:\dev\Globe\Content\Custom\world.200401.3x5400x2700.jpg");
//textureView = new ShaderResourceView(Global._G.device, tex);
//tex.Dispose();
textureView = new ShaderResourceView[] {
Global._G.texMan.texDict["world.200401.3x540x270"].textureView,
//Global._G.texMan.texDict["world.200407.3x5400x2700"].textureView,
//Global._G.texMan.texDict["world.200408.3x8192x8192"].textureView,
Global._G.texMan.texDict["noiseRGBA"].textureView,
Global._G.texMan.texDict["cloud_combined_1024"].textureView
};
// This is handled the the shader effects file. Maybe someday we can make an override if needed.
//sampler = new SamplerState(Global._G.device, new SamplerStateDescription()
//{
// Filter = Filter.Anisotropic,
// AddressU = TextureAddressMode.Wrap,
// AddressV = TextureAddressMode.Wrap,
// AddressW = TextureAddressMode.Wrap,
// BorderColor = Color.Black,
// ComparisonFunction = Comparison.Never,
// MaximumAnisotropy = 16,
// MipLodBias = 0,
// MinimumLod = 0,
// MaximumLod = 16,
//});
// CreateVertexBuffer(faces);
// m_shader = "simpleGlobeShade";
}
public static float2 Lerp(float2 a, float2 b, float alpha)
{
return (a * (1.0f - alpha)) + (b * alpha);
}
public float2 Rotate(float rot)
{
float2 result = new float2();
result.x = (float)(System.Math.Cos(rot) * x - System.Math.Sin(rot) * y);
result.y = (float)(System.Math.Sin(rot) * x + System.Math.Cos(rot) * y);
return result;
}
public float3(float2 v)
{
x = v.x;
y = v.y;
z = 0.0f;
}
public void MergePoint(float2 point1)
{
m_min = m_min.Min(point1);
m_max = m_max.Max(point1);
}
public float2 PowSign(float v)
{
float2 ret = new float2();
ret.x = System.Math.Sign(x) * (float)System.Math.Pow(System.Math.Abs(x), v);
ret.y = System.Math.Sign(y) * (float)System.Math.Pow(System.Math.Abs(y), v);
return ret;
}
public bool Contains(float2 point)
{
if (!IsDefined()) return false;
if (m_min.x > point.x) return false;
if (m_min.y > point.y) return false;
if (m_max.x < point.x) return false;
if (m_max.y < point.y) return false;
return true;
}
public void Intersection(Box2 box)
{
if (!Intersects(box))
{
SetUndefined();
return;
}
m_min = m_min.Max(box.m_min);
m_max = m_max.Min(box.m_max);
}
public Box2(float2 min, float2 max)
{
m_min = min.Min(max);
m_max = min.Max(max);
}
public int2(float2 f)
{
x = (int)f.x;
y = (int)f.y;
}
public float4(float2 xy, float2 zw)
{
x = xy.x;
y = xy.y;
z = zw.x;
w = zw.y;
}
public float2 Max(float2 v)
{
float2 ret = new float2();
ret.x = x > v.x ? x : v.x;
ret.y = y > v.y ? y : v.y;
return ret;
}
public void SetUndefined()
{
m_min = new float2(float.MaxValue, float.MaxValue);
m_max = new float2(float.MinValue, float.MinValue);
}
public float2 Min(float2 v)
{
float2 ret = new float2();
ret.x = x < v.x ? x : v.x;
ret.y = y < v.y ? y : v.y;
return ret;
}
public float2(float2 f)
{
x = f.x;
y = f.y;
}
public float2 Reflect(float2 normal)
{
return this - normal * this.Dot(normal) * 2.0f;
//v = i - 2 * dot(i, n) * n.
}
// Special functions
public static bool IntersectCircleWithLine(float2 circlePos, float radius, float2 posA, float2 posB, out float distance)
{
// Use dot product along line to find closest point on line
float dot = (posB - posA).Normalize().Dot(circlePos - posA);
float2 pointOnLine = (posB - posA).Normalize() * dot + posA;
// Clamp that point to line end points if outside
//if ((dot - radius) < 0) pointOnLine = posA;
if (dot < 0) pointOnLine = posA;
//if ((dot + radius) > (posB - posA).Length()) pointOnLine = posB;
if ((dot) > (posB - posA).Length()) pointOnLine = posB;
// Distance formula from that point to sphere center, compare with radius.
distance = pointOnLine.Distance(circlePos);
if (distance > radius) return false;
return true;
}
public float2 Saturate(float2 v)
{
return v.Min(new float2(1, 1)).Max(new float2(0, 0));
}
public static bool IntersectSweptCircleWithLine(float2 circlePos, float circleRadius, float2 circleVel, float2 posA, float2 posB, out float t)
{
for (t = 0.0f; t <= 1.0f; t += 0.1f)
{
float dist;
if (IntersectCircleWithLine(circlePos + circleVel * t, circleRadius, posA, posB, out dist)) return true;
}
return false;
}
public void UpdateMouseControls()
{
if (leftButton || rightButton)
{
float2 delta = new float2((mousePos - dragStart) * 2);
delta.x *= aspectRatio;
delta /= viewWidth;
if (leftButton && rightButton)
{
Dolly(delta.x * 1000);
}
else
{
if (leftButton)
{
// rotation camera
float sensitivity = 1.5f;
float3x3 roty = float3x3.RotateY(delta.x * sensitivity);
float3 lookAtDelta = m_cameraPos - m_cameraLookat;
lookAtDelta = roty.Mul(lookAtDelta);
float3 rightVector = lookAtDelta.Cross(m_cameraUp).Normalize();
float3x3 upRot = float3x3.AxisAngle(rightVector, delta.y * sensitivity);
lookAtDelta = upRot.Mul(lookAtDelta);
m_cameraPos = lookAtDelta + m_cameraLookat;
float3 newLookAtDelta = m_cameraPos - m_cameraLookat;
float3 newRightVector = newLookAtDelta.Cross(m_cameraUp).Normalize();
if (newRightVector.Dot(rightVector) < 0) m_cameraUp.y = -m_cameraUp.y;
}
else
{
// move camera
float3 lookAtDelta = m_cameraPos - m_cameraLookat;
float3 rightVector = lookAtDelta.Cross(m_cameraUp).Normalize();
float3 upVector = rightVector.Cross(lookAtDelta).Normalize();
float moveScale = 0.5f * lookAtDelta.Length();
m_cameraPos -= rightVector * delta.x * moveScale;
m_cameraLookat -= rightVector * delta.x * moveScale;
m_cameraPos += upVector * delta.y * moveScale;
m_cameraLookat += upVector * delta.y * moveScale;
}
}
}
SetupCamera();
}
/* public void GenCube()
{
//int indexBufSizeInBytes = 4*3;
int[] indexes = new int[] { 0, 1, 2 };
// SharpDX.Direct3D11.BufferDescription indexBufDesc = new BufferDescription(indexBufSizeInBytes, ResourceUsage.Default,
// BindFlags.IndexBuffer, CpuAccessFlags.Write, ResourceOptionFlags.None, 0);
indexBuffer = Buffer.Create(Global._G.device, BindFlags.IndexBuffer, indexes);
// Layout from VertexShader input signature
//ShaderBytecode passSignature = pass.Description.Signature;
ShaderSignature sig = ShaderSignature.GetInputSignature(Global._G.vertexShaderByteCode);
layout = new InputLayout(Global._G.device, sig, new[]
{
new InputElement("POSITION", 0, Format.R32G32B32A32_Float, 0, 0),
new InputElement("NORMAL", 0, Format.R32G32B32_Float, 16, 0),
new InputElement("TEXCOORD", 0, Format.R32G32_Float, 16+12, 0)
//new InputElement("COLOR", 0, Format.R32G32B32A32_Float, 16, 0),
//new InputElement("TEXCOORD", 0, Format.R32G32B32A32_Float, 32, 0)
});
// Instantiate Vertex buiffer from vertex data
//Buffer vertices = Buffer.Create(device, BindFlags.VertexBuffer, new[]
// {
// new Vector4(0.0f, 0.5f, 0.5f, 1.0f), new Vector4(1.0f, 0.0f, 0.0f, 1.0f), new Vector4(1.0f, 0.0f, 0.0f, 0.0f),
// new Vector4(0.5f, -0.5f, 0.5f, 1.0f), new Vector4(0.0f, 1.0f, 0.0f, 1.0f), new Vector4(0.0f, 1.0f, 0.0f, 0.0f),
// new Vector4(-0.5f, -0.5f, 0.5f, 1.0f), new Vector4(0.0f, 0.0f, 1.0f, 1.0f), new Vector4(1.0f, 1.0f, 0.0f, 0.0f),
// });
// Instantiate Vertex buiffer from vertex data
vertices = Buffer.Create(Global._G.device, BindFlags.VertexBuffer, new[]
{
// 3D coordinates UV Texture coordinates
-1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, // Front
-1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
-1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,
-1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, // BACK
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,
-1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
-1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, // Top
-1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
-1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,
-1.0f,-1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, // Bottom
1.0f,-1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
-1.0f,-1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,
-1.0f,-1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
1.0f,-1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
1.0f,-1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
-1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, // Left
-1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
-1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
-1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
-1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,
1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, // Right
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,
1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
});
SharpDX.Direct3D11.Resource tex = Texture2D.FromFile<Texture2D>(Global._G.device, "noiseRGBA.bmp");
textureView = new ShaderResourceView(Global._G.device, tex);
sampler = new SamplerState(Global._G.device, new SamplerStateDescription()
{
Filter = Filter.MinMagMipLinear,
AddressU = TextureAddressMode.Wrap,
AddressV = TextureAddressMode.Wrap,
AddressW = TextureAddressMode.Wrap,
BorderColor = Color.Black,
ComparisonFunction = Comparison.Never,
MaximumAnisotropy = 16,
MipLodBias = 0,
MinimumLod = 0,
MaximumLod = 16,
});
numIndexes = 3;
}*/
public float3 SphericalCoord(float2 latLon, out float3 pos)
{
pos = new float3(
-(float)(Math.Cos(latLon.x) * Math.Cos(latLon.y)),
-(float)Math.Sin(latLon.y),
(float)(Math.Sin(latLon.x) * Math.Cos(latLon.y))
);
float3 normal = pos.Normalize();
float angleXY = (float)Math.Atan2(normal.x, normal.y) * 0.0f;
float angleYZ = (float)Math.Atan2(normal.y, normal.z) * 1.0f;
//float angleZX = Math.Atan2(normal.z, normal.x)*8;
float finalR = ((float)Math.Cos(angleXY)) * (1.0f - Math.Abs(normal.z));
finalR *= ((float)Math.Cos(angleYZ)) * (1.0f - Math.Abs(normal.x));
//finalR += (sin(angleZX)) * (1.0-abs(normal.y));
return pos;// *finalR;
}
