stuff

modules/wallpaper-engine/shaders/base/model_fragment_v1.h

@@ -0,0 +1,48 @@
+
+#include "common_fragment.h"
+
+uniform mat4 g_ViewProjectionMatrix;
+uniform vec3 g_Screen;
+
+#if REFLECTION
+vec3 ApplyReflection(DECLARE_SAMPLER2D_PARAMETER(reflectionTexture), float reflectionTextureMipMapInfo, float reflectivity, float roughness, float metallic, vec3 screenPos, vec3 normal, vec3 normalizedViewVector)
+{
+#if REFLECTION_MAP
+	reflectivity *= componentMaps.z;
+#endif
+	vec2 screenUV = (screenPos.xy / screenPos.z) * 0.5 + 0.5;
+
+	float fresnelTerm = abs(dot(normal, normalizedViewVector));
+	normal = normalize(mul(normal, CAST3X3(g_ViewProjectionMatrix)));
+
+#ifdef HLSL
+	normal.y = -normal.y;
+#endif
+
+#if PLATFORM_ANDROID
+	normal.xy = normal.xy * vec2(0.20 / g_Screen.z, 0.20);
+#else
+	// Make consistent on X since the width is usually more variable (multi monitors) - bad for phones tho
+	normal.xy = normal.xy * vec2(0.15, 0.15 * g_Screen.z);
+#endif
+	screenUV += normal.xy * pow(fresnelTerm, 4.0) * 10;
+	float clipReflection = smoothstep(1.3, 1.0, screenUV.x) * smoothstep(-0.3, 0.0, screenUV.x) *
+		smoothstep(1.3, 1.0, screenUV.y) * smoothstep(-0.3, 0.0, screenUV.y);
+
+	vec3 reflectionColor = texSample2DLod(reflectionTexture, screenUV, roughness * reflectionTextureMipMapInfo).rgb * clipReflection;
+	reflectionColor = reflectionColor * (1.0 - fresnelTerm) * reflectivity;
+	reflectionColor = pow(max(CAST3(0.001), reflectionColor), CAST3(2.0 - metallic));
+
+	return saturate(reflectionColor);
+}
+#endif
+
+void ApplyAlphaToCoverage(inout float alpha)
+{
+#if ALPHATOCOVERAGE
+	alpha = (alpha - 0.5) / max(fwidth(alpha), 0.0001) + 0.5;
+#if GLSL
+	if (alpha < 0.5) discard;
+#endif
+#endif
+}