Adi Bar-Lev
ce713fad5e
- Back light correction. This fix will block TT lobe (back lobe) from allowing light transfer - By doing this we remove the requirement to add self shadowing in most cases, hence removing heavy render pass. Exception: - Thin hair will still pass light and therefor there is still a need to read depth buffer and compare as a second step to avoid adding heavy shadowing pass / comparison. Signed-off-by: Adi Bar-Lev <82479970+Adi-Amazon@users.noreply.github.com>
162 lines
6.2 KiB
Plaintext
162 lines
6.2 KiB
Plaintext
{
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"Type": "JsonSerialization",
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"Version": 1,
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"ClassName": "PassAsset",
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"ClassData": {
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"PassTemplate": {
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"Name": "HairShortCutGeometryShadingPassTemplate",
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"PassClass": "HairShortCutGeometryShadingPass",
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"Slots": [
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{ // Temporary color buffer to store the gathered shaded hair color - MSAA
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"Name": "HairColorRenderTarget",
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"SlotType": "Output",
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"ScopeAttachmentUsage": "RenderTarget",
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"LoadStoreAction": {
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"LoadAction": "Clear",
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"ClearValue": { // reverse depth order: closer --> 1.0
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"Value": [ 0.0, 0.0, 0.0, 0.0 ]
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},
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"StoreAction": "Store"
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}
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},
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{
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// This RT is MSAA - is it cheaper to avoid doing this work and only do a copy at a separate pass?
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"Name": "RenderTargetInputOutput",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader"
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},
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{ // Used to get the transform from screen space to world space.
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"Name": "DepthLinear",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader"
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},
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{ // Used as the thickness accumulation to block TT (back) lobe lighting
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"Name": "AccumulatedInverseAlpha",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader",
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"ShaderInputName": "m_accumInvAlpha"
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},
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{ // For comparing the depth to early disqualify but not to write
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"Name": "Depth",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "DepthStencil"
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},
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{
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"Name": "SkinnedHairSharedBuffer",
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"ShaderInputName": "m_skinnedHairSharedBuffer",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader"
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},
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//------------- Shadowing Resources -------------
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{
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"Name": "DirectionalShadowmap",
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"ShaderInputName": "m_directionalLightShadowmap",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader",
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"ImageViewDesc": {
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"IsArray": 1
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}
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},
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{
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"Name": "DirectionalESM",
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"ShaderInputName": "m_directionalLightExponentialShadowmap",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader",
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"ImageViewDesc": {
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"IsArray": 1
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}
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},
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{
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"Name": "ProjectedShadowmap",
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"ShaderInputName": "m_projectedShadowmaps",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader",
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"ImageViewDesc": {
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"IsArray": 1
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}
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},
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{
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"Name": "ProjectedESM",
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"ShaderInputName": "m_projectedExponentialShadowmap",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader",
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"ImageViewDesc": {
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"IsArray": 1
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}
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},
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//------------- Lighting Resources -------------
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{
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"Name": "BRDFTextureInput",
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"ShaderInputName": "m_brdfMap",
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"SlotType": "Input",
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"ScopeAttachmentUsage": "Shader"
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},
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{
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"Name": "TileLightData",
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"SlotType": "Input",
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"ShaderInputName": "m_tileLightData",
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"ScopeAttachmentUsage": "Shader"
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},
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{
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"Name": "LightListRemapped",
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"SlotType": "Input",
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"ShaderInputName": "m_lightListRemapped",
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"ScopeAttachmentUsage": "Shader"
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}
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],
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"ImageAttachments": [
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{
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// The shader hair color render target - important to have at a non-MSAA mode
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// so that no overwork is done on sampling.
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"Name": "HairColorRenderTarget",
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"SizeSource": {
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"Source": {
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"Pass": "Parent",
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"Attachment": "RenderTargetInputOutput"
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}
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},
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"ImageDescriptor": {
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"Format": "R16G16B16A16_FLOAT",
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"SharedQueueMask": "Graphics",
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"BindFlags": [
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"Color",
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"ShaderRead"
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]
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}
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},
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{
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"Name": "BRDFTexture",
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"Lifetime": "Imported",
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"AssetRef": {
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"FilePath": "Textures/BRDFTexture.attimage"
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}
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}
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],
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"Connections": [
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{
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"LocalSlot": "BRDFTextureInput",
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"AttachmentRef": {
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"Pass": "This",
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"Attachment": "BRDFTexture"
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}
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}
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],
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"PassData": {
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"$type": "RasterPassData",
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"DrawListTag": "HairGeometryShadingDrawList",
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"PipelineViewTag": "MainCamera",
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"PassSrgShaderAsset": {
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// Looking for it in the Shaders directory relative to the Assets directory
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"FilePath": "Shaders/HairShortCutGeometryShading.shader"
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}
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}
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}
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}
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}
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