more hlsl fixes for unity. got through the lighting examples

generative/random.hlsl

@@ -17,6 +17,9 @@ examples:
 #define RANDOM_SCALE float4(443.897, 441.423, 0.0973, 0.1099)
 #endif
 #endif
+#ifndef RANDOM_SCALE_4
+#define RANDOM_SCALE_4 float4(443.897, 441.423, .0973, 1.6334)
+#endif
 
 #ifndef FNC_RANDOM
 #define FNC_RANDOM

lighting/envMap.hlsl

@@ -48,4 +48,4 @@ float3 envMap(float3 _normal, float _roughness, float _metallic) {
 float3 envMap(float3 _normal, float _roughness) {
     return envMap(_normal, _roughness, 1.0);
 }
-#endif
+#endif

lighting/fresnelReflection.hlsl

@@ -1,6 +1,7 @@
 #include "fresnel.hlsl"
 #include "fakeCube.hlsl"
 #include "sphericalHarmonics.hlsl"
+#include "envMap.hlsl"
 
 /*
 original_author: Patricio Gonzalez Vivo
@@ -37,4 +38,4 @@ float3 fresnelReflection(float3 R, float3 f0, float NoV) {
     return reflectColor * frsnl;
 }
 
-#endif
+#endif

lighting/pbr.hlsl

@@ -7,6 +7,7 @@
 #include "reflection.hlsl"
 #include "common/specularAO.hlsl"
 #include "common/envBRDFApprox.hlsl"
+#include "envMap.hlsl"
 
 /*
 original_author: Patricio Gonzalez Vivo
@@ -122,4 +123,4 @@ float4 pbr(const Material _mat) {
 
     return color;
 }
-#endif
+#endif

lighting/pbrClearCoat.hlsl

@@ -2,6 +2,7 @@
 #include "fresnelReflection.hlsl"
 #include "light/point.hlsl"
 #include "light/directional.hlsl"
+#include "envMap.hlsl"
 
 #include "ior/2f0.hlsl"
 
@@ -10,7 +11,6 @@
 #include "common/kelemen.hlsl"
 #include "common/specularAO.hlsl"
 #include "common/envBRDFApprox.hlsl"
-
 /*
 original_author: Patricio Gonzalez Vivo
 description: simple PBR shading model
@@ -196,4 +196,4 @@ float4 pbrClearCoat(const Material _mat) {
 
     return color;
 }
-#endif
+#endif

sdf/circleSDF.hlsl

@@ -6,8 +6,8 @@ options:
     CIRCLESDF_LENGHT_FNC(POS_UV) : function used to calculate the SDF, defaults to GLSL length function, use lengthSq for a different slope
 */
 
-#ifndef CIRCLESDF_LENGHT_FNC
-#define CIRCLESDF_LENGHT_FNC(POS_UV) length(POS_UV)
+#ifndef CIRCLESDF_FNC
+#define CIRCLESDF_FNC(POS_UV) length(POS_UV)
 #endif
 
 #ifndef FNC_CIRCLESDF

sdf/starSDF.hlsl

@@ -1,5 +1,5 @@
 #include "../math/const.hlsl"
-
+#include "../space/scale.hlsl"
 /*
 original_author: Patricio Gonzalez Vivo
 description: Returns a star-shaped sdf with V branches
@@ -18,7 +18,7 @@ float starSDF(in float2 st, in int V, in float s) {
     float a = atan2(st.y, st.x) / TAU;
     float seg = a * float(V);
     a = ((floor(seg) + 0.5) / float(V) +
-        mix(s, -s, step(0.5, frac(seg))))
+        lerp(s, -s, step(0.5, frac(seg))))
         * TAU;
     return abs(dot(float2(cos(a), sin(a)),
                    st));

sdf/superShapeSDF.hlsl

@@ -1,4 +1,4 @@
-#include ../space/cart2polar.hlsl
+#include "../space/cart2polar.hlsl"
 
 /*
 original_author: Kathy McGuiness
@@ -40,4 +40,4 @@ float superShapeSDF( in float2 st, in float s, in float a, in float b, in float
     return superShapeSDF( st, float2(0.5, 0.5), s, a, b, n1, n2, n3, m );
     #endif
 }
-#endif
+#endif

sdf/triSDF.hlsl

@@ -6,7 +6,7 @@ use: triSDF(<float2> st)
 
 #ifndef FNC_TRISDF
 #define FNC_TRISDF
-float triSDF(in vec2 st) {
+float triSDF(in float2 st) {
 #ifdef CENTER_2D
     st -= CENTER_2D;
     st *= 5.0;

space/brickTile.hlsl

@@ -1,5 +1,5 @@
-#include "sqTile.glsl"
-
+#include "sqTile.hlsl"
+#include "../math/mod.hlsl"
 /*
 original_author: Patricio Gonzalez Vivo
 description: brick a pattern
@@ -25,4 +25,4 @@ float4 brickTile(float4 tile) {
     tile.x = frac(tile.x);
     return tile;
 }
-#endif
+#endif

space/cart2polar.hlsl

@@ -13,8 +13,8 @@ float2 cart2polar(in float2 st) {
 
 float3 cart2polar( in float3 st) {
    float r = length(st);
-   float theta = atan( length(st.xy), st.z);
-   float phi = atan(st.y, st.x);
+   float theta = atan2( length(st.xy), st.z);
+   float phi = atan2(st.y, st.x);
    return float3(r, theta, phi);
 }
-#endif
+#endif