public void RebuildTextures(int resolution)
{
bool updateNeeded = m_SkyboxCubemapRT == null || (m_SkyboxCubemapRT.rt.width != resolution);
// Cleanup first if needed
if (updateNeeded)
{
RTHandles.Release(m_SkyboxCubemapRT);
m_SkyboxCubemapRT = null;
RTHandles.Release(m_SkyboxBSDFCubemapIntermediate);
m_SkyboxBSDFCubemapIntermediate = null;
CoreUtils.Destroy(m_SkyboxBSDFCubemapArray);
m_SkyboxBSDFCubemapArray = null;
}
// Reallocate everything
if (m_SkyboxCubemapRT == null)
{
m_SkyboxCubemapRT = RTHandles.Alloc(resolution, resolution, colorFormat: HDRenderPipeline.OverrideRTGraphicsFormat(GraphicsFormat.R16G16B16A16_SFloat), dimension: TextureDimension.Cube, useMipMap: true, autoGenerateMips: false, filterMode: FilterMode.Trilinear, name: "SkyboxCubemap");
if (m_SupportsConvolution)
{
m_SkyboxBSDFCubemapIntermediate = RTHandles.Alloc(resolution, resolution, colorFormat: UnityEngine.Experimental.Rendering.HDPipeline.HDRenderPipeline.OverrideRTGraphicsFormat(GraphicsFormat.R16G16B16A16_SFloat), dimension: TextureDimension.Cube, useMipMap: true, autoGenerateMips: false, filterMode: FilterMode.Trilinear, name: "SkyboxBSDFIntermediate");
m_SkyboxBSDFCubemapArray = new CubemapArray(resolution, m_IBLFilterArray.Length, TextureFormat.RGBAHalf, true)
{
hideFlags = HideFlags.HideAndDontSave,
wrapMode = TextureWrapMode.Repeat,
wrapModeV = TextureWrapMode.Clamp,
filterMode = FilterMode.Trilinear,
anisoLevel = 0,
name = "SkyboxCubemapConvolution"
};
}
}
m_CubemapScreenSize = new Vector4((float)resolution, (float)resolution, 1.0f / (float)resolution, 1.0f / (float)resolution);
if (updateNeeded)
{
m_NeedUpdate = true; // Special case. Even if update mode is set to OnDemand, we need to regenerate the environment after destroying the texture.
RebuildSkyMatrices(resolution);
}
}
// BufferedRTHandleSystem API expects an allocator function. We define it here.
static RTHandleSystem.RTHandle HistoryBufferAllocatorFunction(string viewName, int frameIndex, RTHandleSystem rtHandleSystem)
{
frameIndex &= 1;
var hdPipeline = (HDRenderPipeline)RenderPipelineManager.currentPipeline;
return(rtHandleSystem.Alloc(Vector2.one, filterMode: FilterMode.Point, colorFormat: HDRenderPipeline.OverrideRTGraphicsFormat((GraphicsFormat)hdPipeline.currentPlatformRenderPipelineSettings.colorBufferFormat),
enableRandomWrite: true, useMipMap: true, autoGenerateMips: false, xrInstancing: true,
name: string.Format("CameraColorBufferMipChain{0}", frameIndex)));
}