public LocalCloudData GetData()
{
var shapeData = new LocalCloudData();
shapeData.Position = transform.position;
shapeData.Bounds = transform.lossyScale * .5f;
shapeData.TextureScale = m_textureScale;
shapeData.DensityThreshold = m_densityThreshold;
shapeData.DensityMultiplier = m_densityMultiplier;
shapeData.EdgeFadeDistance = m_edgeFadeDistance;
return(shapeData);
}
private void OnDrawGizmos()
{
Vector3 center = transform.position;
Vector3 extents = transform.lossyScale * .5f;
Color color = Color.white;
Debug.DrawLine(center + new Vector3(extents.x, extents.y, extents.z), center + new Vector3(-extents.x, extents.y, extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(extents.x, -extents.y, extents.z), center + new Vector3(-extents.x, -extents.y, extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(extents.x, extents.y, -extents.z), center + new Vector3(-extents.x, extents.y, -extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(extents.x, -extents.y, -extents.z), center + new Vector3(-extents.x, -extents.y, -extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(extents.x, extents.y, extents.z), center + new Vector3(extents.x, extents.y, -extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(-extents.x, extents.y, extents.z), center + new Vector3(-extents.x, extents.y, -extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(extents.x, -extents.y, extents.z), center + new Vector3(extents.x, -extents.y, -extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(-extents.x, -extents.y, extents.z), center + new Vector3(-extents.x, -extents.y, -extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(extents.x, extents.y, extents.z), center + new Vector3(extents.x, -extents.y, extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(-extents.x, extents.y, extents.z), center + new Vector3(-extents.x, -extents.y, extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(extents.x, extents.y, -extents.z), center + new Vector3(extents.x, -extents.y, -extents.z), color, 0, true);
Debug.DrawLine(center + new Vector3(-extents.x, extents.y, -extents.z), center + new Vector3(-extents.x, -extents.y, -extents.z), color, 0, true);
if (m_tester == null)
{
return;
}
LocalCloudData data = GetData();
Vector2 result = SlabTest(data.Position - data.Bounds, data.Position + data.Bounds, m_tester.position, m_tester.forward);
Debug.DrawLine(m_tester.position, m_tester.position + m_tester.forward * result.y, Color.red);
Debug.DrawLine(m_tester.position, m_tester.position + m_tester.forward * result.x, Color.green);
//falloff test
Vector3 boundsMin = data.Position - data.Bounds;
Vector3 boundsMax = data.Position + data.Bounds;
Vector3 testPos = m_tester.position + m_tester.forward * Mathf.Lerp(result.x, result.y, .05f);
const float containerEdgeFadeDst = 1f;
float dstFromEdgeX = Mathf.Min(containerEdgeFadeDst, Mathf.Min(testPos.x - boundsMin.x, boundsMax.x - testPos.x));
float dstFromEdgeY = Mathf.Min(containerEdgeFadeDst, Mathf.Min(testPos.y - boundsMin.y, boundsMax.y - testPos.y));
float dstFromEdgeZ = Mathf.Min(containerEdgeFadeDst, Mathf.Min(testPos.z - boundsMin.z, boundsMax.z - testPos.z));
float falloff = Mathf.Min(dstFromEdgeY, Mathf.Min(dstFromEdgeZ, dstFromEdgeX)) / containerEdgeFadeDst;
Debug.DrawLine(m_tester.position + m_tester.forward * result.x, testPos, Color.yellow);
}
private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (m_target == null || m_target.width != Screen.width || m_target.height != Screen.height)
{
if (m_target != null)
{
m_target.Release();
}
m_target = new RenderTexture(Screen.width, Screen.height, 1);
m_target.enableRandomWrite = true;
m_target.Create();
}
//apply settings
m_computeShader.SetInt("MaxRaySteps", m_maxRaySteps);
m_computeShader.SetFloat("DensityThreshold", m_densityThreshold);
m_computeShader.SetFloat("DensityMultiplier", m_densityMultiplier);
m_computeShader.SetFloat("GlobalCloudSize", m_globalCloudSize);
m_computeShader.SetFloat("GlobalCloudHeight", m_globalCloudHeight);
m_computeShader.SetVector("CloudScale", m_cloudScale);
//Generate scene
if (m_localCloudsdata == null || m_localClouds.Length > m_localCloudsdata.Length)
{
m_localCloudsdata = new LocalCloudData[m_localClouds.Length];
}
int numLocalClouds = 0;
for (int i = 0; i < m_localClouds.Length; ++i)
{
if (m_localClouds[i].isActiveAndEnabled)
{
m_localCloudsdata[numLocalClouds] = m_localClouds[i].GetData();
numLocalClouds++;
}
}
ComputeBuffer localCloudsBuffer = new ComputeBuffer(m_localCloudsdata.Length, LocalCloudData.GetSize());
localCloudsBuffer.SetData(m_localCloudsdata, 0, 0, Mathf.Max(numLocalClouds, 1));
m_computeShader.SetBuffer(0, "LocalClouds", localCloudsBuffer);
m_computeShader.SetInt("NumLocalClouds", numLocalClouds);
uint threadGroupX, threadGroupY, threadGroupZ;
m_computeShader.GetKernelThreadGroupSizes(0, out threadGroupX, out threadGroupY, out threadGroupZ);
m_computeShader.SetMatrix("CameraToWorldMatrix", m_camera.cameraToWorldMatrix);
m_computeShader.SetMatrix("CameraInvProjectionMatrix", m_camera.projectionMatrix.inverse);
m_computeShader.SetTexture(0, "CloudTexture", m_cloudTexture);
m_computeShader.SetTexture(0, "CloudDetailTexture", m_cloudDetailTexture);
m_computeShader.SetTexture(0, "RandomNoiseTexture", m_randomNoiseTexture);
m_computeShader.SetTexture(0, "BlueNoiseTexture", m_blueNoiseTexture);
m_computeShader.SetTexture(0, "CloudFormationMapTexture", m_cloudFormationTexture);
m_computeShader.SetTextureFromGlobal(0, "_CameraDepthTexture", "_CameraDepthTexture");
m_computeShader.SetTexture(0, "Source", source);
m_computeShader.SetTexture(0, "Target", m_target);
m_computeShader.Dispatch(0, Mathf.CeilToInt(m_target.width / threadGroupX), Mathf.CeilToInt(m_target.width / threadGroupY), (int)threadGroupZ);
localCloudsBuffer.Dispose();
Graphics.Blit(m_target, destination);
}
