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-rw-r--r--src/extras/shaders/leedsVehicle_mobile.frag74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/extras/shaders/leedsVehicle_mobile.frag b/src/extras/shaders/leedsVehicle_mobile.frag
new file mode 100644
index 00000000..5c7a60b9
--- /dev/null
+++ b/src/extras/shaders/leedsVehicle_mobile.frag
@@ -0,0 +1,74 @@
+uniform sampler2D tex0;
+uniform sampler2D tex1;
+
+uniform float u_shininess;
+uniform vec3 u_skyTop;
+uniform vec3 u_skyBot;
+
+// matfx:
+// case 1 normal envmap
+// custom1 (4.0, 1.0, 1.0, coef)
+// custom2 (0.25, 3.0, 1.0, 1.0)
+// case 2 too strong
+// custom1 (4.0, 1.0, 2.0, coef)
+// custom2 (0.5, 3.0, 1.0, 1.0)
+// ???: practically no fresnel
+// custom1 (4.0, 1.25, 0.01, coef)
+// custom2 (1.0, 2.0, 1.1, 2.0)
+
+#define power (4.0)
+
+#define preMult (1.0)
+#define postMult (1.0)
+#define minRefl (0.25)
+#define maxRefl (3.0)
+#define minOpacity (1.0)
+#define maxOpacity (1.0)
+
+//#define preMult (1.0)
+//#define postMult (2.0)
+//#define minRefl (0.5)
+//#define maxRefl (3.0)
+//#define minOpacity (1.0)
+//#define maxOpacity (1.0)
+
+//#define preMult (1.25)
+//#define postMult (0.01)
+//#define minRefl (1.0)
+//#define maxRefl (2.0)
+//#define minOpacity (1.1)
+//#define maxOpacity (2.0)
+
+FSIN vec4 v_color;
+FSIN vec2 v_tex0;
+FSIN vec2 v_tex1;
+FSIN float v_fog;
+FSIN vec2 v_reflData;
+
+#define v_NdotV (v_reflData.x)
+#define v_lightingCont (v_reflData.y)
+
+void
+main(void)
+{
+ vec4 pass1 = v_color*texture(tex0, vec2(v_tex0.x, 1.0-v_tex0.y));
+
+ vec3 envtex = texture(tex1, v_tex1).rgb; // V flipped
+ vec3 skyColour = mix(u_skyBot, u_skyTop, envtex.g);
+ vec3 envOut = mix(envtex.rrr, skyColour, envtex.b);
+
+ float fresnel = mix(u_shininess, u_shininess * 2.0, v_NdotV);
+ fresnel = pow(v_NdotV * preMult, power);
+ fresnel = clamp(fresnel * postMult, 0.0, 1.0);
+ float reflectivity = v_lightingCont * mix(minRefl, maxRefl, fresnel)*u_shininess;
+
+ float opacity = mix(minOpacity, maxOpacity, fresnel)*pass1.a;
+ vec4 color = pass1 + vec4(reflectivity * envOut, 0.0);
+ color.a = opacity;
+
+ color.rgb = mix(u_fogColor.rgb, color.rgb, v_fog);
+
+ DoAlphaTest(color.a);
+
+ FRAGCOLOR(color);
+}