151 lines
3.9 KiB
HLSL
151 lines
3.9 KiB
HLSL
#ifndef HBAO_COMPOSITE_INCLUDED
|
|
#define HBAO_COMPOSITE_INCLUDED
|
|
|
|
#include "UnityCG.cginc"
|
|
#include "HBAO_Common.cginc"
|
|
|
|
inline half4 FetchOcclusion(float2 uv) {
|
|
return UNITY_SAMPLE_SCREENSPACE_TEXTURE(_HBAOTex, uv * _TargetScale.zw);
|
|
}
|
|
|
|
inline half4 FetchSceneColor(float2 uv) {
|
|
return UNITY_SAMPLE_SCREENSPACE_TEXTURE(_MainTex, uv);
|
|
}
|
|
|
|
inline half4 FetchGBuffer0(float2 uv) {
|
|
return UNITY_SAMPLE_SCREENSPACE_TEXTURE(_TempTex, uv);
|
|
}
|
|
|
|
inline half4 FetchGBuffer3(float2 uv) {
|
|
return UNITY_SAMPLE_SCREENSPACE_TEXTURE(_MainTex, uv);
|
|
}
|
|
|
|
inline half3 MultiBounceAO(float visibility, half3 albedo) {
|
|
half3 a = 2.0404 * albedo - 0.3324;
|
|
half3 b = -4.7951 * albedo + 0.6417;
|
|
half3 c = 2.7552 * albedo + 0.6903;
|
|
|
|
float x = visibility;
|
|
return max(x, ((x * a + b) * x + c) * x);
|
|
}
|
|
|
|
half4 Composite_Frag(Varyings input) : SV_Target
|
|
{
|
|
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
|
|
|
|
//uint2 positionSS = input.uv * _ScreenSize.xy;
|
|
|
|
half4 ao = FetchOcclusion(input.uv);
|
|
|
|
ao.a = saturate(pow(abs(ao.a), _Intensity));
|
|
half3 aoColor = lerp(_BaseColor.rgb, half3(1.0, 1.0, 1.0), ao.a);
|
|
|
|
half4 col = FetchSceneColor(input.uv);
|
|
|
|
#if LIGHTING_LOG_ENCODED
|
|
col.rgb = -log2(col.rgb);
|
|
#endif
|
|
|
|
#if MULTIBOUNCE
|
|
aoColor = lerp(aoColor, MultiBounceAO(ao.a, lerp(col.rgb, _BaseColor.rgb, _BaseColor.rgb)), _MultiBounceInfluence);
|
|
#endif
|
|
|
|
col.rgb *= aoColor;
|
|
|
|
#if COLOR_BLEEDING
|
|
//col.rgb += 1 - ao.rgb;
|
|
col.rgb += ao.rgb;
|
|
#endif
|
|
|
|
#if LIGHTING_LOG_ENCODED
|
|
col.rgb = exp2(-col.rgb);
|
|
#endif
|
|
|
|
#if DEBUG_AO
|
|
col.rgb = aoColor;
|
|
#elif DEBUG_COLORBLEEDING && COLOR_BLEEDING
|
|
//col.rgb = 1 - ao.rgb;
|
|
col.rgb = ao.rgb;
|
|
#elif DEBUG_NOAO_AO || DEBUG_AO_AOONLY || DEBUG_NOAO_AOONLY
|
|
if (input.uv.x <= 0.4985) {
|
|
#if DEBUG_NOAO_AO || DEBUG_NOAO_AOONLY
|
|
col = FetchSceneColor(input.uv);
|
|
#endif // DEBUG_NOAO_AO || DEBUG_NOAO_AOONLY
|
|
return col;
|
|
}
|
|
if (input.uv.x > 0.4985 && input.uv.x < 0.5015) {
|
|
return half4(0, 0, 0, 1);
|
|
}
|
|
#if DEBUG_AO_AOONLY || DEBUG_NOAO_AOONLY
|
|
col.rgb = aoColor;
|
|
#endif // DEBUG_AO_AOONLY) || DEBUG_NOAO_AOONLY
|
|
#endif // DEBUG_AO
|
|
return col;
|
|
}
|
|
|
|
half4 Composite_Frag_BlendAO(Varyings input) : SV_Target
|
|
{
|
|
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
|
|
|
|
half4 ao = FetchOcclusion(input.uv);
|
|
|
|
ao.a = saturate(pow(abs(ao.a), _Intensity));
|
|
half3 aoColor = lerp(_BaseColor.rgb, half3(1.0, 1.0, 1.0), ao.a);
|
|
|
|
#if MULTIBOUNCE
|
|
half4 col = FetchSceneColor(input.uv);
|
|
aoColor = lerp(aoColor, MultiBounceAO(ao.a, lerp(col.rgb, _BaseColor.rgb, _BaseColor.rgb)), _MultiBounceInfluence);
|
|
#endif
|
|
|
|
return float4(aoColor, 1);
|
|
}
|
|
|
|
half4 Composite_Frag_BlendCB(Varyings input) : SV_Target
|
|
{
|
|
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
|
|
|
|
half4 ao = FetchOcclusion(input.uv);
|
|
|
|
return float4(ao.rgb, 1);
|
|
}
|
|
|
|
|
|
struct CombinedOutput {
|
|
half4 gbuffer0 : SV_Target0; // albedo (RGB), occlusion (A)
|
|
half4 gbuffer3 : SV_Target1; // emission (RGB), unused(A)
|
|
};
|
|
|
|
CombinedOutput Composite_Lit_Frag(Varyings input)
|
|
{
|
|
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
|
|
|
|
half4 ao = FetchOcclusion(input.uv);
|
|
|
|
ao.a = saturate(pow(abs(ao.a), _Intensity));
|
|
half3 aoColor = lerp(_BaseColor.rgb, half3(1.0, 1.0, 1.0), ao.a);
|
|
|
|
half4 albedoOcc = FetchGBuffer0(input.uv);
|
|
half4 emission = FetchGBuffer3(input.uv);
|
|
|
|
#if LIGHTING_LOG_ENCODED
|
|
emission.rgb = -log2(emission.rgb);
|
|
#endif
|
|
|
|
CombinedOutput o;
|
|
o.gbuffer0 = half4(albedoOcc.rgb, albedoOcc.a * ao.a);
|
|
o.gbuffer3 = half4(emission.rgb * lerp(aoColor, half3(1.0, 1.0, 1.0), saturate((emission.r + emission.g + emission.b) / 3)), emission.a);
|
|
|
|
#if COLOR_BLEEDING
|
|
//o.gbuffer3.rgb += 1 - ao.rgb;
|
|
o.gbuffer3.rgb += ao.rgb;
|
|
#endif
|
|
|
|
#if LIGHTING_LOG_ENCODED
|
|
o.gbuffer3.rgb = exp2(-o.gbuffer3.rgb);
|
|
#endif
|
|
|
|
return o;
|
|
}
|
|
|
|
#endif // HBAO_COMPOSITE_INCLUDED
|