private void BlurFog(RenderTexture fogTarget1, RenderTexture fogTarget2)
{
if (!m_BlurEnabled)
{
return;
}
ApplyBlurMaterial.SetFloat(ShaderIDs.BlurDepthFalloff, m_BlurDepthFallOff);
Vector4 blurOffsets = new Vector4(0, m_BlurOffsets.x, m_BlurOffsets.y, m_BlurOffsets.z);
ApplyBlurMaterial.SetVector(ShaderIDs.BlurOffsets, blurOffsets);
Vector4 blurWeights = new Vector4(m_BlurWeights.x + m_BlurWeights.y + m_BlurWeights.z, m_BlurWeights.x, m_BlurWeights.y, m_BlurWeights.z);
ApplyBlurMaterial.SetVector(ShaderIDs.BlurWeights, blurWeights);
for (int i = 0; i < m_BlurIterations; ++i)
{
ApplyBlurMaterial.SetVector(ShaderIDs.BlurDir, new Vector2(0, 1));
Graphics.Blit(fogTarget1, fogTarget2, ApplyBlurMaterial);
ApplyBlurMaterial.SetVector(ShaderIDs.BlurDir, new Vector2(1, 0));
Graphics.Blit(fogTarget1, fogTarget2, ApplyBlurMaterial);
}
}
private void BlurFog(RenderTexture fogTarget1, RenderTexture fogTarget2)
{
if (!_BlurEnabled)
{
return;
}
ApplyBlurMaterial.SetFloat("_BlurDepthFalloff", _BlurDepthFalloff);
var BlurOffsets = new Vector4(0, // initial sample is always at the center
_BlurOffsets.x,
_BlurOffsets.y,
_BlurOffsets.z);
ApplyBlurMaterial.SetVector("_BlurOffsets", BlurOffsets);
// x is sum of all weights
var BlurWeightsWithTotal = new Vector4(_BlurWeights.x + _BlurWeights.y + _BlurWeights.z,
_BlurWeights.x,
_BlurWeights.y,
_BlurWeights.z);
ApplyBlurMaterial.SetVector("_BlurWeights", BlurWeightsWithTotal);
for (var i = 0; i < _BlurIterations; i++)
{
// vertical blur
ApplyBlurMaterial.SetVector("BlurDir", new Vector2(0, 1));
Graphics.Blit(fogTarget1, fogTarget2, ApplyBlurMaterial);
// horizontal blur
ApplyBlurMaterial.SetVector("BlurDir", new Vector2(1, 0));
Graphics.Blit(fogTarget2, fogTarget1, ApplyBlurMaterial);
}
}