private void PerformBlur(RenderTexture src, RenderTexture dest)
{
float off = BlurSpread;
BlurMaterial.SetTexture("_MainTex", src);
BlurMaterial.SetFloat("_Shift", off);
Graphics.Blit(src, dest, BlurMaterial);
}
private void PerformBlur(RenderTexture src, RenderTexture dest, int iteration)
{
float offset = iteration * BlurSpread;
offset *= gaussFilter[iteration];
BlurMaterial.SetTexture("_MainTex", src);
BlurMaterial.SetFloat("_Shift", offset);
Graphics.Blit(src, dest, BlurMaterial);
}
void OnRenderImage(RenderTexture source, RenderTexture destination)
{
ConvolveFogVolume();
GetRT(ref _source, new int2(Screen.width, Screen.height), "_source");
Graphics.Blit(source, _source);
fastBloomMaterial.SetTexture("_source", _source);
BlurMaterial.SetTexture("_source", _source);
//Graphics.Blit(_source, destination, BlurMaterial);
// RT_Format = source.format;
#region Density convolution
UniformFogCamera.cullingMask = 1 << instance.FogVolumeLayer;
//UniformFogCamera.cullingMask |= 1 << LayerMask.NameToLayer("FogVolumeUniform");//add Fog volume uniforms
FOV_compensation = initFOV / SceneCamera.fieldOfView;
Shader.SetGlobalFloat("FOV_compensation", FOV_compensation);
fastBloomMaterial.SetFloat("_Falloff", _Falloff);
// BlurMaterial.SetFloat("_Dither", _Dither);
// BlurMaterial.SetFloat("_Distortion", ImageDistortion * -.08f);
RenderTexture RT_DensityBlur = RenderTexture.GetTemporary(screenX / Downsample, screenY / Downsample, 0, RT_Format);
DownSample4x(source, RT_DensityBlur);
for (int i = 0; i < iterations; i++)
{
RenderTexture RT_DensityBlur2 = RenderTexture.GetTemporary(screenX / Downsample, screenY / Downsample, 0, RT_Format);
FourTapCone(RT_DensityBlur, RT_DensityBlur2, i);
RenderTexture.ReleaseTemporary(RT_DensityBlur);
RT_DensityBlur = RT_DensityBlur2;
}
// Graphics.Blit(RT_DensityBlur, destination);
#endregion
#region Bloom
if (intensity > 0)
{
Rendering.EnsureKeyword(fastBloomMaterial, "BLOOM", true);
float widthMod = 2.0f / (float)_BloomDowsample;
fastBloomMaterial.SetFloat("_Saturation", _Saturation);
fastBloomMaterial.SetVector("_Parameter", new Vector4(blurSize * widthMod, 0.0f, threshold, intensity));
var rtW = source.width / _BloomDowsample;
var rtH = source.height / _BloomDowsample;
// downsample
RenderTexture rt = RenderTexture.GetTemporary(rtW, rtH, 0, RT_Format);
rt.filterMode = FilterMode.Bilinear;
if (SceneBloom)
{
Graphics.Blit(source, rt, fastBloomMaterial, 1);
}
else
{
Graphics.Blit(RT_DensityBlur, rt, fastBloomMaterial, 1);
}
var passOffs = blurType == BlurType.Standard ? 0 : 2;
for (int i = 1; i < blurIterations; i++)
{
fastBloomMaterial.SetVector("_Parameter", new Vector4(blurSize * widthMod + (i * 1.0f), 0.0f, threshold, intensity));
// vertical blur
RenderTexture rt2 = RenderTexture.GetTemporary(rtW, rtH, 0, RT_Format);
rt2.filterMode = FilterMode.Bilinear;
Graphics.Blit(rt, rt2, fastBloomMaterial, 2 + passOffs);
RenderTexture.ReleaseTemporary(rt);
rt = rt2;
// horizontal blur
rt2 = RenderTexture.GetTemporary(rtW, rtH, 0, RT_Format);
rt2.filterMode = FilterMode.Bilinear;
Graphics.Blit(rt, rt2, fastBloomMaterial, 3 + passOffs);
RenderTexture.ReleaseTemporary(rt);
rt = rt2;
}
fastBloomMaterial.SetTexture("_Bloom", rt);
RenderTexture.ReleaseTemporary(rt);
}
else
{
Rendering.EnsureKeyword(fastBloomMaterial, "BLOOM", false);
}
#endregion
Graphics.Blit(RT_DensityBlur, destination, fastBloomMaterial, 0);
RenderTexture.ReleaseTemporary(RT_DensityBlur);
}