drewcassidy/KSP-Conformal-Decals
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Move projection code into shared library

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This commit is contained in:
Andrew Cassidy 2020-05-24 18:16:23 -07:00
parent f630fb2215
commit 8ca3925e04
3 changed files with 35 additions and 65 deletions
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58
Assets/Shaders/DecalFeatureBumped.shader
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@ -34,12 +34,6 @@ Shader "ConformalDecals/Feature/Bumped"
#pragma multi_compile_fwdbase nolightmap nodirlightmap nodynlightmap
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "AutoLight.cginc"
#include "LightingKSP.cginc"
#include "DecalsCommon.cginc"
sampler2D _Decal;
sampler2D _DecalBumpMap;
@ -49,22 +43,18 @@ Shader "ConformalDecals/Feature/Bumped"
float _Cutoff;
float _Opacity;
float _RimFalloff;
float4 _RimColor;
float4 _RimColor;
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "AutoLight.cginc"
#include "LightingKSP.cginc"
#include "DecalsCommon.cginc"
void surf (DecalSurfaceInput IN, inout SurfaceOutput o)
{
fixed4 uv_projected = UNITY_PROJ_COORD(IN.uv_decal);
// since I cant easily affect the clamping mode in KSP, do it here
clip(uv_projected.xyz);
clip(1-uv_projected.xyz);
// clip backsides
clip(dot(_DecalNormal, IN.normal));
float2 uv_decal = TRANSFORM_TEX(uv_projected, _Decal);
float4 color = tex2D(_Decal, uv_decal);
float3 normal = UnpackNormal(tex2D(_DecalBumpMap, uv_decal));
float4 color = tex2D(_Decal, IN.uv_decal);
float3 normal = UnpackNormal(tex2D(_DecalBumpMap, IN.uv_decal));
// clip alpha
clip(color.a - _Cutoff);
@ -93,37 +83,27 @@ Shader "ConformalDecals/Feature/Bumped"
#pragma multi_compile_fwdadd nolightmap nodirlightmap nodynlightmap
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "AutoLight.cginc"
#include "LightingKSP.cginc"
#include "DecalsCommon.cginc"
sampler2D _Decal;
sampler2D _DecalBumpMap;
float4 _Decal_ST;
float4 _DecalBumpMap_ST;
float _Cutoff;
float _Opacity;
float _RimFalloff;
float4 _RimColor;
float4 _RimColor;
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "AutoLight.cginc"
#include "LightingKSP.cginc"
#include "DecalsCommon.cginc"
void surf (DecalSurfaceInput IN, inout SurfaceOutput o)
{
fixed4 uv_projected = UNITY_PROJ_COORD(IN.uv_decal);
// since I cant easily affect the clamping mode in KSP, do it here
clip(uv_projected.xyz);
clip(1-uv_projected.xyz);
// clip backsides
clip(dot(_DecalNormal, IN.normal));
float2 uv_decal = TRANSFORM_TEX(uv_projected, _Decal);
float4 color = tex2D(_Decal, uv_decal);
float3 normal = UnpackNormal(tex2D(_DecalBumpMap, uv_decal));
float4 color = tex2D(_Decal, IN.uv_decal);
float3 normal = UnpackNormal(tex2D(_DecalBumpMap, IN.uv_decal));
// clip alpha
clip(color.a - _Cutoff);

28
Assets/Shaders/DecalPaint.shader
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@ -61,22 +61,12 @@ Shader "ConformalDecals/Paint/Diffuse"
void surf (DecalSurfaceInput IN, inout SurfaceOutput o)
{
fixed4 uv_projected = UNITY_PROJ_COORD(IN.uv_decal);
// since I cant easily affect the clamping mode in KSP, do it here
clip(uv_projected.xyz);
clip(1-uv_projected.xyz);
// clip backsides
clip(dot(_DecalNormal, IN.normal));
float2 uv_decal = TRANSFORM_TEX(uv_projected, _Decal);
float4 color = tex2D(_Decal, uv_decal);
float4 color = tex2D(_Decal, IN.uv_decal);
float3 normal = UnpackNormal(tex2D(_BumpMap, IN.uv_base));
// clip alpha
clip(color.a - _Cutoff);
float3 normal = UnpackNormal(tex2D(_BumpMap, IN.uv_base));
half rim = 1.0 - saturate(dot (normalize(IN.viewDir), normal));
float3 emission = (_RimColor.rgb * pow(rim, _RimFalloff)) * _RimColor.a;
@ -130,22 +120,12 @@ Shader "ConformalDecals/Paint/Diffuse"
void surf (DecalSurfaceInput IN, inout SurfaceOutput o)
{
fixed4 uv_projected = UNITY_PROJ_COORD(IN.uv_decal);
// since I cant easily affect the clamping mode in KSP, do it here
clip(uv_projected.xyz);
clip(1-uv_projected.xyz);
// clip backsides
clip(dot(_DecalNormal, IN.normal));
float2 uv_decal = TRANSFORM_TEX(uv_projected, _Decal);
float4 color = tex2D(_Decal, uv_decal);
float4 color = tex2D(_Decal, IN.uv_decal);
float3 normal = UnpackNormal(tex2D(_BumpMap, IN.uv_base));
// clip alpha
clip(color.a - _Cutoff);
float3 normal = UnpackNormal(tex2D(_BumpMap, IN.uv_base));
half rim = 1.0 - saturate(dot (normalize(IN.viewDir), normal));
float3 emission = (_RimColor.rgb * pow(rim, _RimFalloff)) * _RimColor.a;

14
Assets/Shaders/DecalsCommon.cginc
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@ -3,7 +3,7 @@
struct DecalSurfaceInput
{
float4 uv_decal;
float2 uv_decal;
#ifdef DECAL_BASE_NORMAL
float2 uv_base;
#endif //DECAL_BASE_NORMAL
@ -134,9 +134,19 @@ fixed4 frag_forward(v2f IN) : SV_Target
float3 worldViewDir = normalize(UnityWorldSpaceViewDir(worldPosition));
float3 viewDir = _unity_tbn_0 * worldViewDir.x + _unity_tbn_1 * worldViewDir.y + _unity_tbn_2 * worldViewDir.z;
// perform decal projection
fixed4 uv_projected = UNITY_PROJ_COORD(IN.uv_decal);
// clip texture outside of xyz bounds
clip(uv_projected.xyz);
clip(1-uv_projected.xyz);
// clip backsides
clip(dot(_DecalNormal, IN.normal));
// initialize surface input
UNITY_INITIALIZE_OUTPUT(DecalSurfaceInput, i)
i.uv_decal = IN.uv_decal;
i.uv_decal = TRANSFORM_TEX(uv_projected, _Decal);;
#ifdef DECAL_BASE_NORMAL
i.uv_base = IN.uv_base;
#endif