private void BuildHeightmap()
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(heightmap);
#endif
ClearHeightmap();
if (heightmap != null)
{
var pixels = heightmap.GetPixels();
var total = pixels.Length;
heightmapData = new NativeArray <float>(total, Allocator.Persistent);
heightmapSize = new int2(heightmap.width, heightmap.height);
for (var i = 0; i < total; i++)
{
heightmapData[i] = pixels[i].a;
}
var t = (heightmapSize.y - 1) * heightmapSize.x;
for (var x = 1; x < heightmapSize.x; x++)
{
heightmapData[x] = heightmapData[0];
heightmapData[x + t] = heightmapData[t];
}
}
}
public void RebuildMesh()
{
generatedMesh = SgtHelper.Destroy(generatedMesh);
if (OriginalMesh != null && Heightmap != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(Heightmap);
#endif
// Duplicate original
generatedMesh = Instantiate(OriginalMesh);
#if UNITY_EDITOR
generatedMesh.hideFlags = HideFlags.DontSave;
#endif
generatedMesh.name = OriginalMesh.name + " (Displaced)";
// Displace vertices
var positions = OriginalMesh.vertices;
for (var i = 0; i < positions.Length; i++)
{
var direction = positions[i].normalized;
positions[i] = direction * GetSurfaceHeightLocal(direction);
}
generatedMesh.vertices = positions;
generatedMesh.RecalculateBounds();
generatedMesh.RecalculateNormals();
generatedMesh.RecalculateTangents();
}
ApplyMesh();
}
private void HandleCameraDraw(Camera camera)
{
if (SgtHelper.CanDraw(gameObject, camera) == false)
{
return;
}
if (depthTex != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(depthTex);
#endif
material.SetFloat(SgtShader._Sky, GetSky(camera.transform.position));
}
var scale = SgtHelper.Divide(radius, meshRadius);
var matrix = transform.localToWorldMatrix * Matrix4x4.Scale(Vector3.one * scale);
if (cameraOffset != 0.0f)
{
var direction = Vector3.Normalize(camera.transform.position - transform.position);
matrix = Matrix4x4.Translate(direction * cameraOffset) * matrix;
}
Graphics.DrawMesh(mesh, matrix, material, gameObject.layer, camera);
}
private void PrepareTexture()
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(heightmap);
#endif
MarkAsDirty();
}
public void Rebuild()
{
dirtyMesh = false;
generatedMesh = SgtHelper.Destroy(generatedMesh);
if (mesh != null)
{
generatedMesh = Instantiate(mesh);
generatedMesh.GetVertices(generatedPositions);
generatedMesh.GetUVs(0, generatedCoords);
var count = generatedMesh.vertexCount;
lastHeightmap = MaterialHeightmap;
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(lastHeightmap);
#endif
for (var i = 0; i < count; i++)
{
var height = radius;
var vector = generatedPositions[i].normalized;
var coord = generatedCoords[i];
if (vector.y > 0.0f)
{
coord.z = -vector.x * 0.5f;
coord.w = vector.z * 0.5f;
}
else
{
coord.z = vector.x * 0.5f;
coord.w = vector.z * 0.5f;
}
generatedCoords[i] = coord;
generatedPositions[i] = vector * Sample(vector);
}
generatedMesh.bounds = new Bounds(Vector3.zero, Vector3.one * (radius + displacement) * 2.0f);
generatedMesh.SetVertices(generatedPositions);
generatedMesh.SetUVs(0, generatedCoords);
generatedMesh.RecalculateNormals();
generatedMesh.RecalculateTangents();
if (meshCollider != null)
{
meshCollider.sharedMesh = null;
meshCollider.sharedMesh = generatedMesh;
}
}
}
private void CameraPreRender(Camera camera)
{
if (model != null)
{
model.Restore(camera);
}
// Write camera-dependant shader values
if (innerMaterial != null && outerMaterial != null)
{
var localPosition = cachedTransform.InverseTransformPoint(camera.transform.position);
var localDistance = localPosition.magnitude;
var height01 = Mathf.InverseLerp(OuterRadius, InnerMeshRadius, localDistance);
var innerThickness = default(float);
var outerThickness = default(float);
var innerRatio = SgtHelper.Divide(InnerMeshRadius, OuterRadius);
var middleRatio = Mathf.Lerp(innerRatio, 1.0f, Middle);
var distance = SgtHelper.Divide(localDistance, OuterRadius);
var innerDensity = 1.0f - InnerFog;
var outerDensity = 1.0f - OuterFog;
SgtHelper.CalculateHorizonThickness(innerRatio, middleRatio, distance, out innerThickness, out outerThickness);
innerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(innerThickness * innerDensity));
outerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(outerThickness * outerDensity));
if (OuterDepthTex != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(OuterDepthTex);
#endif
outerMaterial.SetFloat(SgtShader._Sky, GetSky(camera) * OuterDepthTex.GetPixelBilinear(height01 / outerDensity, 0.0f).a);
}
var scale = SgtHelper.Divide(OuterMeshRadius, OuterRadius);
var worldToLocal = Matrix4x4.Scale(new Vector3(scale, scale, scale)) * cachedTransform.worldToLocalMatrix; // cachedTransform might not be set here, so use the property
innerMaterial.SetMatrix(SgtShader._WorldToLocal, worldToLocal);
outerMaterial.SetMatrix(SgtShader._WorldToLocal, worldToLocal);
// Write lights and shadows
SgtHelper.SetTempMaterial(innerMaterial, outerMaterial);
var mask = 1 << gameObject.layer;
var lights = SgtLight.Find(Lit, mask);
SgtShadow.Find(Lit, mask, lights);
SgtShadow.FilterOutSphere(transform.position);
SgtShadow.Write(Lit, 2);
SgtLight.FilterOut(transform.position);
SgtLight.Write(Lit, transform.position, cachedTransform, null, ScatteringStrength, 2);
}
}
private void CameraPreRender(Camera camera)
{
if (model != null)
{
model.Restore(camera);
}
// Write camera-dependant shader values
if (innerMaterial != null && outerMaterial != null)
{
var cameraPosition = camera.transform.position;
var localCameraPosition = transform.InverseTransformPoint(cameraPosition);
var localDistance = localCameraPosition.magnitude;
var clampedSky = Mathf.InverseLerp(OuterRadius, InnerMeshRadius, localDistance);
var innerAtmosphereDepth = default(float);
var outerAtmosphereDepth = default(float);
var radiusRatio = SgtHelper.Divide(InnerMeshRadius, OuterRadius);
var scaleDistance = SgtHelper.Divide(localDistance, OuterRadius);
var innerDensity = 1.0f - InnerFog;
var outerDensity = 1.0f - OuterFog;
SgtHelper.CalculateAtmosphereThicknessAtHorizon(radiusRatio, 1.0f, scaleDistance, out innerAtmosphereDepth, out outerAtmosphereDepth);
SgtHelper.SetTempMaterial(innerMaterial, outerMaterial);
if (scaleDistance > 1.0f)
{
SgtHelper.EnableKeyword("SGT_A"); // Outside
}
else
{
SgtHelper.DisableKeyword("SGT_A"); // Outside
}
innerMaterial.SetFloat("_HorizonLengthRecip", SgtHelper.Reciprocal(innerAtmosphereDepth * innerDensity));
outerMaterial.SetFloat("_HorizonLengthRecip", SgtHelper.Reciprocal(outerAtmosphereDepth * outerDensity));
if (OuterDepthTex != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(OuterDepthTex);
#endif
outerMaterial.SetFloat("_Sky", GetSky(camera) * OuterDepthTex.GetPixelBilinear(clampedSky / outerDensity, 0.0f).a);
}
UpdateMaterialNonSerialized();
}
}
private void HandleCameraDraw(Camera camera)
{
if (SgtHelper.CanDraw(gameObject, camera) == false)
{
return;
}
// Write camera-dependent shader values
if (innerMaterial != null && outerMaterial != null)
{
var localPosition = CachedTransform.InverseTransformPoint(camera.transform.position);
var localDistance = localPosition.magnitude;
var innerThickness = default(float);
var outerThickness = default(float);
var innerRatio = SgtHelper.Divide(innerMeshRadius, OuterRadius);
var middleRatio = Mathf.Lerp(innerRatio, 1.0f, middle);
var distance = SgtHelper.Divide(localDistance, OuterRadius);
var innerDensity = 1.0f - innerFog;
var outerDensity = 1.0f - outerFog;
SgtHelper.CalculateHorizonThickness(innerRatio, middleRatio, distance, out innerThickness, out outerThickness);
innerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(innerThickness * innerDensity));
outerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(outerThickness * outerDensity));
if (outerDepthTex != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(outerDepthTex);
#endif
outerMaterial.SetFloat(SgtShader._Sky, GetSky(localDistance));
}
UpdateMaterialNonSerialized();
}
var scale = SgtHelper.Divide(OuterRadius, outerMeshRadius);
var matrix = CachedTransform.localToWorldMatrix * Matrix4x4.Scale(Vector3.one * scale);
if (cameraOffset != 0.0f)
{
var direction = Vector3.Normalize(camera.transform.position - cachedTransform.position);
matrix = Matrix4x4.Translate(direction * cameraOffset) * matrix;
}
Graphics.DrawMesh(outerMesh, matrix, outerMaterial, gameObject.layer, camera);
}
private bool GenerateAreas()
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(texture);
SgtHelper.MakeTextureTruecolor(texture);
#endif
if (texture != null && splats != null)
{
splatCount = splats.Count;
size = new int2(texture.width, texture.height);
SgtHelper.UpdateNativeArray(ref weights, size.x * size.y * splatCount);
tempColors.Clear();
foreach (var splat in splats)
{
tempColors.Add(splat.Color);
}
var data = texture.GetRawTextureData <byte>();
var offS = SgtHelper.GetStride(texture.format);
var offR = SgtHelper.GetOffset(texture.format, 0);
var offG = SgtHelper.GetOffset(texture.format, 1);
var offB = SgtHelper.GetOffset(texture.format, 2);
for (var y = 0; y < size.y; y++)
{
for (var x = 0; x < size.x; x++)
{
var index = x + y * size.x;
var r = data[index * offS + offR];
var g = data[index * offS + offG];
var b = data[index * offS + offB];
for (var s = 0; s < splatCount; s++)
{
weights[index * splatCount + s] = GetDistance(tempColors[s], r, g, b);
}
}
}
return(true);
}
return(false);
}
private void CameraPreRender(Camera camera)
{
if (material != null)
{
var cameraPosition = camera.transform.position;
var localCameraPosition = transform.InverseTransformPoint(cameraPosition);
var localDistance = localCameraPosition.magnitude;
var scaleDistance = SgtHelper.Divide(localDistance, Radius);
if (scaleDistance > 1.0f)
{
SgtHelper.EnableKeyword("SGT_A", material); // Outside
}
else
{
SgtHelper.DisableKeyword("SGT_A", material); // Outside
if (DepthTex != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(DepthTex);
#endif
material.SetFloat("_Sky", Sky * DepthTex.GetPixelBilinear(1.0f - scaleDistance, 0.0f).a);
}
}
// Write these once to save CPU
if (renderedThisFrame == false)
{
renderedThisFrame = true;
// Write lights and shadows
SgtHelper.SetTempMaterial(material);
SgtLight.Write(Lit, transform.position, transform, null, ScatteringStrength, 2);
SgtShadow.Write(Lit, gameObject, 2);
// Write matrices
var localToWorld = transform.localToWorldMatrix * SgtHelper.Scaling(Radius * 2.0f); // Double mesh radius so the max thickness caps at 1.0
material.SetMatrix("_WorldToLocal", localToWorld.inverse);
material.SetMatrix("_LocalToWorld", localToWorld);
}
}
}
private void CameraPreRender(Camera camera)
{
if (material != null)
{
var cameraPosition = camera.transform.position;
var localCameraPosition = transform.InverseTransformPoint(cameraPosition);
var localDistance = localCameraPosition.magnitude;
var scaleDistance = SgtHelper.Divide(localDistance, Radius);
if (DepthTex != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(DepthTex);
#endif
material.SetFloat(SgtShader._Sky, Sky * DepthTex.GetPixelBilinear(1.0f - scaleDistance, 0.0f).a);
}
// Write these once to save CPU
if (renderedThisFrame == false)
{
renderedThisFrame = true;
// Write lights and shadows
SgtHelper.SetTempMaterial(material);
var mask = 1 << gameObject.layer;
var lights = SgtLight.Find(Lit, mask, transform.position);
SgtLight.FilterOut(transform.position);
SgtShadow.Find(Lit, mask, lights);
SgtShadow.FilterOutSphere(transform.position);
SgtShadow.Write(Lit, 2);
SgtLight.Write(Lit, transform.position, transform, null, ScatteringStrength, 2);
// Write matrices
var scale = Radius;
var localToWorld = transform.localToWorldMatrix * Matrix4x4.Scale(new Vector3(scale, scale, scale)); // Double mesh radius so the max thickness caps at 1.0
material.SetMatrix(SgtShader._WorldToLocal, localToWorld.inverse);
material.SetMatrix(SgtShader._LocalToWorld, localToWorld);
}
}
}
private static bool PrepareTexture(Texture texture, bool repX, bool repY, ref sampler sam)
{
sam.set = false;
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(texture);
#endif
if (texture != null && texture is Texture2D)
{
sam.set = true;
sam.tex = (Texture2D)texture;
sam.repX = repX;
sam.repY = repY;
sam.w = 0.5f / texture.width;
sam.h = 0.5f / texture.height;
}
return(sam.set);
}
protected override int BeginQuads()
{
SgtHelper.BeginRandomSeed(Seed);
sourceTex2D = SourceTex as Texture2D;
if (sourceTex2D != null && Samples > 0)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(sourceTex2D);
SgtHelper.MakeTextureTruecolor(sourceTex2D);
#endif
halfSize = Size * 0.5f;
return(StarCount);
}
return(0);
}
public void Rebuild()
{
dirty = false;
generatedMesh = SgtHelper.Destroy(generatedMesh);
if (mesh != null)
{
generatedMesh = Instantiate(mesh);
generatedMesh.GetVertices(generatedPositions);
generatedMesh.GetUVs(0, generatedCoords);
var count = generatedMesh.vertexCount;
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(heightmap);
#endif
for (var i = 0; i < count; i++)
{
generatedCoords[i] = generatedCoords[i];
var height = radius;
var vector = generatedPositions[i].normalized;
generatedPositions[i] = vector * Sample(vector);
}
generatedMesh.SetVertices(generatedPositions);
generatedMesh.SetUVs(0, generatedCoords);
generatedMesh.RecalculateBounds();
generatedMesh.RecalculateNormals();
generatedMesh.RecalculateTangents();
if (meshCollider != null)
{
meshCollider.sharedMesh = null;
meshCollider.sharedMesh = generatedMesh;
}
}
}
public void RebuildMesh()
{
displacedMesh = SgtHelper.Destroy(displacedMesh);
if (OriginalMesh != null && Heightmap != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(Heightmap);
#endif
// Duplicate original
displacedMesh = Instantiate(OriginalMesh);
#if UNITY_EDITOR
displacedMesh.hideFlags = HideFlags.DontSave;
#endif
displacedMesh.name = OriginalMesh.name + " (Displaced)";
// Displace vertices
var positions = OriginalMesh.vertices;
for (var i = 0; i < positions.Length; i++)
{
var direction = positions[i].normalized;
positions[i] = direction * GetSurfaceHeightLocal(direction);
}
displacedMesh.vertices = positions;
displacedMesh.RecalculateBounds();
}
// Apply displaced mesh
if (meshFilter == null)
{
meshFilter = GetComponent <MeshFilter>();
}
meshFilter.sharedMesh = displacedMesh;
}
private void CameraPreRender(Camera camera)
{
if (model != null)
{
model.Restore(camera);
}
// Write camera-dependant shader values
if (innerMaterial != null && outerMaterial != null)
{
var localPosition = cachedTransform.InverseTransformPoint(camera.transform.position);
var localDistance = localPosition.magnitude;
var height01 = Mathf.InverseLerp(OuterRadius, InnerMeshRadius, localDistance);
var innerThickness = default(float);
var outerThickness = default(float);
var innerRatio = SgtHelper.Divide(InnerMeshRadius, OuterRadius);
var middleRatio = Mathf.Lerp(innerRatio, 1.0f, Middle);
var distance = SgtHelper.Divide(localDistance, OuterRadius);
var innerDensity = 1.0f - InnerFog;
var outerDensity = 1.0f - OuterFog;
SgtHelper.CalculateHorizonThickness(innerRatio, middleRatio, distance, out innerThickness, out outerThickness);
innerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(innerThickness * innerDensity));
outerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(outerThickness * outerDensity));
if (OuterDepthTex != null)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(OuterDepthTex);
#endif
outerMaterial.SetFloat(SgtShader._Sky, Sky * OuterDepthTex.GetPixelBilinear(height01 / outerDensity, 0.0f).a);
}
UpdateMaterialNonSerialized();
}
}
protected override int BeginQuads()
{
SgtHelper.BeginRandomSeed(seed);
if (starColors == null)
{
starColors = SgtHelper.CreateGradient(Color.white);
}
sourceTex2D = sourceTex as Texture2D;
if (sourceTex2D != null && samples > 0)
{
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(sourceTex2D);
SgtHelper.MakeTextureTruecolor(sourceTex2D);
#endif
halfSize = size * 0.5f;
return(starCount);
}
return(0);
}
private void Rebuild()
{
Clear();
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(splat);
#endif
if (splat != null)
{
var pixels = splat.GetPixels();
var total = pixels.Length;
splatData = new NativeArray <float>(total, Allocator.Persistent);
splatSize = new int2(splat.width, splat.height);
switch (channel)
{
case ChannelType.Red:
{
for (var i = 0; i < total; i++)
{
splatData[i] = pixels[i].r;
}
}
break;
case ChannelType.Green:
{
for (var i = 0; i < total; i++)
{
splatData[i] = pixels[i].g;
}
}
break;
case ChannelType.Blue:
{
for (var i = 0; i < total; i++)
{
splatData[i] = pixels[i].b;
}
}
break;
case ChannelType.Alpha:
{
for (var i = 0; i < total; i++)
{
splatData[i] = pixels[i].a;
}
}
break;
}
var t = (splatSize.y - 1) * splatSize.x;
for (var x = 1; x < splatSize.x; x++)
{
splatData[x] = splatData[0];
splatData[x + t] = splatData[t];
}
}
else
{
splatData = new NativeArray <float>(0, Allocator.Persistent);
splatSize = int2.zero;
}
}
public void UpdateTexture()
{
if (Source == null)
{
Source = CachedShadowRing.Texture as Texture2D;
}
if (Source != null)
{
var width = Source.width;
#if UNITY_EDITOR
SgtHelper.MakeTextureReadable(Source);
#endif
// Destroy if invalid
if (generatedTexture != null)
{
if (generatedTexture.width != width || generatedTexture.height != 1 || generatedTexture.format != Format)
{
generatedTexture = SgtHelper.Destroy(generatedTexture);
}
}
// Create?
if (generatedTexture == null)
{
generatedTexture = SgtHelper.CreateTempTexture2D("Ring Shadow (Generated)", width, 1, Format);
generatedTexture.wrapMode = TextureWrapMode.Clamp;
ApplyTexture();
}
if (bufferA == null || bufferA.Length != width)
{
bufferA = new Color[width];
bufferB = new Color[width];
}
for (var x = 0; x < width; x++)
{
bufferA[x] = bufferB[x] = Source.GetPixel(x, 0);
}
if (Invert == true)
{
for (var x = 0; x < width; x++)
{
var a = bufferA[x];
bufferA[x] = bufferB[x] = new Color(1.0f - a.r, 1.0f - a.g, 1.0f - a.b, 1.0f - a.a);
}
}
if (ShareRGB == true)
{
for (var x = 0; x < width; x++)
{
var a = bufferA[x].a;
bufferA[x] = bufferB[x] = new Color(a, a, a, a);
}
}
for (var i = 0; i < Iterations; i++)
{
SwapBuffers();
for (var x = width - 2; x >= 1; x--)
{
WritePixel(x);
}
}
for (var x = 0; x < width; x++)
{
generatedTexture.SetPixel(x, 0, bufferB[x]);
}
generatedTexture.SetPixel(0, 0, Color.white);
generatedTexture.SetPixel(width - 1, 0, Color.white);
generatedTexture.Apply();
}
}