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();
}
}