// First ShadowContext.hlsl must declare the specific ShadowContext struct and the loader that goes along with it.
// First ShadowContext.hlsl provides a macro SHADOWCONTEXT_DECLARE that must be used in order to define the specific ShadowContext struct and accompanying loader.
// Second there are two headers for shadow algorithms, whose signatures must match any of the Get...Attenuation function prototypes.
// The first header contains engine defaults, whereas the second header is empty by default. All project specific custom shadow algorithms should go in there or leave empty.
//
// Last there's a dispatcher include. By default the Get...Attenuation functions are rerouted to their default implementations. This can be overridden for each
// shadow type in the dispatcher source. For each overridden shadow type a specific define must be defined to prevent falling back to the default functions.
//
/* Required defines: (define these to the desired numbers - must be in sync with loading and resource setup from C#)
#define SHADOWCONTEXT_MAX_TEX2DARRAY 0
#define SHADOWCONTEXT_MAX_TEXCUBEARRAY 0
#define SHADOWCONTEXT_MAX_SAMPLER 0
#define SHADOWCONTEXT_MAX_COMPSAMPLER 0
*/
/* Default values for optional defines:
#define SHADOW_SUPPORTS_DYNAMIC_INDEXING 0 // Dynamic indexing only works on >= sm 5.1
#define SHADOW_OPTIMIZE_REGISTER_USAGE 0 // Redefine this as 1 in your ShadowContext.hlsl to optimize for register usage over instruction count
// #define SHADOW_DISPATCH_USE_CUSTOM_PUNCTUAL // Enable custom implementations of GetPunctualShadowAttenuation. If not defined, a default implementation will be used.
// #define SHADOW_DISPATCH_USE_CUSTOM_DIRECTIONAL // Enable custom implementations of GetDirectionalShadowAttenuation. If not defined, a default implementation will be used.
*/
#define SHADOW_SUPPORTS_DYNAMIC_INDEXING 0 // only on >= sm 5.1
#define SHADOW_OPTIMIZE_REGISTER_USAGE 0 // redefine this as 1 in your ShadowContext.hlsl to optimize for register usage over instruction count
#ifndef SHADOW_SUPPORTS_DYNAMIC_INDEXING
#define SHADOW_SUPPORTS_DYNAMIC_INDEXING 0
#endif
#ifndef SHADOW_OPTIMIZE_REGISTER_USAGE
#define SHADOW_OPTIMIZE_REGISTER_USAGE 0
#endif
#include "../../../Core/Shadow/ShadowBase.cs.hlsl" // ShadowData definition, auto generated (don't modify)
#include "Shadow/ShadowBase.cs.hlsl" // ShadowData definition, auto generated (don't modify)
// Declares a shadow context struct with members and sampling code based on whether _...Slots > 0
// CAUTION: In case deferred lighting need to support various lighting model statically, we will require to do multicompile with different define like UNITY_MATERIAL_LIT
#define UNITY_MATERIAL_LIT // Need to be define before including Material.hlsl
// Project specific file to override the default shadow sampling routines.
// We need to define which dispatchers we're overriding, otherwise the compiler will pick default implementations which will lead to compilation errors.
// Check Shadow.hlsl right below where this header is included for the individual defines.
#ifndef TILEPASS_SHADOW_HLSL
#define TILEPASS_SHADOW_HLSL
#define SHADOW_DISPATCH_USE_CUSTOM_DIRECTIONAL
#define SHADOW_DISPATCH_USE_CUSTOM_PUNCTUAL
#include "ShadowContext.hlsl"
// This is an example of how to override the default dynamic resource dispatcher
// by hardcoding the resources used and calling the shadow sampling routines that take an explicit texture and sampler.
#define SHADOW_DISPATCH_USE_CUSTOM_DIRECTIONAL // enables hardcoded resources and algorithm for directional lights
#define SHADOW_DISPATCH_USE_CUSTOM_PUNCTUAL // enables hardcoded resources and algorithm for punctual lights
//#define SHADOW_DISPATCH_USE_SEPARATE_CASCADE_ALGOS // enables separate cascade sampling variants for each cascade
//#define SHADOW_DISPATCH_USE_SEPARATE_PUNC_ALGOS // enables separate resources and algorithms for spot and point lights
Peter Bay Bastian
7 年前