Initial commit

client/common/shaders/bgfx_source/smoothplastic.sc

@@ -0,0 +1,86 @@
+$input a_position, a_normal, a_texcoord0, a_texcoord1, a_color0, a_color1, a_texcoord2, a_texcoord3
+$output v_pos, v_worldPos, v_texcoord0, v_texcoord1, v_color0, v_normal, v_tangent, v_lightpos_fog, v_view_depth, v_poslightspace, v_edgedist, v_reflection
+
+#include "common.sh"
+
+#ifdef CLASSIC
+#define PIN_SURFACE
+#define ALREADY_HAS_PS
+
+#define SPEC_EXPON 81.0
+#define KS 0.75
+
+#define FADE_DIST 500.0
+#define FADE_DIST_START 0.0
+
+#define BEVEL_WIDTH 0.06
+
+SAMPLER2D(s_lightMap, 1);
+SAMPLER2D(s_lightMapLookup, 2);
+SAMPLERCUBE(s_environmentMap, 4);
+
+vec3 CalcBevel(vec4 edgeDistances, vec3 normal, float viewDepth);
+void Shade(vec3 albedo, vec3 nn, vec3 vn, float ks, float specExpon, vec4 light, out vec3 diffuse, out vec3 specular);
+
+vec3 CalcBevelDir(vec4 edgeDistances)
+{
+    vec3 dir = vec3(0.0);
+    vec4 bevelMultiplier = step(edgeDistances, vec4(BEVEL_WIDTH));
+
+    dir += bevelMultiplier.x * vec3(1.0, 0.0, 0.0);
+    dir += bevelMultiplier.y * vec3(-1.0, 0.0, 0.0);
+    dir += bevelMultiplier.z * vec3(0.0, 1.0, 0.0);
+    dir += bevelMultiplier.w * vec3(0.0, -1.0, 0.0);
+
+    return dir;
+}
+
+void DefaultPS()
+{
+    float normalStrength = 0.4;
+    float fade = clamp(normalStrength - (v_view_depth.w - FADE_DIST_START) / FADE_DIST, 0.0, 1.0);
+    vec3 nn = normalize(v_normal);
+    vec4 edgeDistances = v_edgedist;
+
+    vec4 albedo = v_color0;
+
+    // lets generate this matrix in the vertex shader and pass it in later
+    mat3 normalMatrix = mat3(
+        v_tangent.xyz,
+        cross(nn, v_tangent.xyz),
+        nn
+    );
+
+    vec2 uv = v_texcoord0;
+    vec3 tn = vec3(0.0, 0.0, 0.5);
+    tn = mix(vec3(0.0, 0.0, 0.5), tn, fade);
+    tn = CalcBevel(edgeDistances, tn, v_view_depth.w);
+    nn = mul(tn, normalMatrix);
+
+    vec3 vn = normalize(v_view_depth.xyz);
+    vec4 light = lgridSample(s_lightMap, s_lightMapLookup, v_lightpos_fog.xyz);
+
+    vec3 diffuse;
+    vec3 specular;
+    Shade(albedo.rgb, nn, vn, KS, SPEC_EXPON, light, diffuse, specular);
+    
+    vec3 result = diffuse + specular;
+
+#ifdef PIN_REFLECTION
+    vec3 reflection = textureCube(s_environmentMap, reflect(-vn, nn)).rgb;
+    result = mix(result, reflection, v_reflection);
+#endif
+
+    float fogAlpha = clamp((u_fogParams.z - length(v_view_depth.xyz)) * u_fogParams.w, 0.0, 1.0);
+    result = mix(u_fogColor, result, fogAlpha);
+    gl_FragColor = vec4(result, albedo.a);
+
+#ifdef PIN_GBUFFER
+    // gl_FragData[1] = gbufferPack(v_view_depth.w, diffuse.rgb, specular.rgb, fogAlpha);
+#endif
+}
+
+#else
+#define PIN_PLASTIC
+#include "default.sc"
+#endif