/// <summary>
///
/// </summary>
/// <param name="renderer"></param>
/// <param name="viewProj"></param>
private void SetupDirectionalLight(VolumetricLightRenderer renderer, Matrix4x4 viewProj)
{
int pass = 4;
_material.SetPass(pass);
Mesh mesh = VolumetricLightRenderer.GetDirLightMesh();
_commandBuffer.Clear();
float zScale = Mathf.Min(Camera.current.farClipPlane, MaxRayLength);
float yScale = Camera.current.farClipPlane * Mathf.Tan(Mathf.Deg2Rad * Camera.current.fieldOfView * 0.5f);
float xScale = yScale * Camera.current.aspect;
Matrix4x4 world = Matrix4x4.TRS(Camera.current.transform.position, Camera.current.transform.rotation, new Vector3(xScale, yScale, zScale));
_material.SetMatrix("_WorldViewProj", viewProj * world);
_material.SetMatrix("_WorldView", Camera.current.worldToCameraMatrix * world);
if (Noise)
{
_material.EnableKeyword("NOISE");
}
else
{
_material.DisableKeyword("NOISE");
}
_material.SetVector("_LightDir", new Vector4(_light.transform.forward.x, _light.transform.forward.y, _light.transform.forward.z, 1.0f / (_light.range * _light.range)));
_material.SetVector("_LightColor", _light.color * _light.intensity);
if (_light.cookie == null)
{
_material.EnableKeyword("DIRECTIONAL");
_material.DisableKeyword("DIRECTIONAL_COOKIE");
}
else
{
_material.EnableKeyword("DIRECTIONAL_COOKIE");
_material.DisableKeyword("DIRECTIONAL");
_material.SetTexture("_LightTexture0", _light.cookie);
}
Texture texture = null;
if (_light.shadows != LightShadows.None)
{
_material.EnableKeyword("SHADOWS_DEPTH");
//_commandBuffer.SetGlobalTexture("_ShadowMapTexture", BuiltinRenderTextureType.CurrentActive);
if (renderer.Resolution == VolumetricLightRenderer.VolumtericResolution.Full)
{
_commandBuffer.SetRenderTarget(renderer.GetVolumeLightBuffer(), BuiltinRenderTextureType.CameraTarget);
}
else
{
_commandBuffer.SetRenderTarget(renderer.GetVolumeLightBuffer());
}
//_commandBuffer.Blit(texture, VolumetricLightRenderer.GetVolumeLightBuffer(), _material, pass);
_commandBuffer.DrawMesh(mesh, world, _material, 0, pass);
if (CustomRenderEvent != null)
{
CustomRenderEvent(renderer, this, _commandBuffer, viewProj);
}
}
else
{
_material.DisableKeyword("SHADOWS_DEPTH");
//globalBuffer.Blit(texture, VolumetricLightRenderer.GetVolumeLightBuffer(), _material, pass);
renderer.GlobalCommandBuffer.DrawMesh(mesh, world, _material, 0, pass);
if (CustomRenderEvent != null)
{
CustomRenderEvent(renderer, this, renderer.GlobalCommandBuffer, viewProj);
}
}
}
