From 8baae4c77ff85e6fb1cacd428162804080998069 Mon Sep 17 00:00:00 2001
From: aap <aap@papnet.eu>
Date: Tue, 19 Jan 2021 11:38:51 +0100
Subject: PSP rendering and shader cleanup

---
 .../shaders/obj/leedsVehicle_mobile_frag.inc       | 78 ++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 src/extras/shaders/obj/leedsVehicle_mobile_frag.inc

(limited to 'src/extras/shaders/obj/leedsVehicle_mobile_frag.inc')

diff --git a/src/extras/shaders/obj/leedsVehicle_mobile_frag.inc b/src/extras/shaders/obj/leedsVehicle_mobile_frag.inc
new file mode 100644
index 00000000..8098599c
--- /dev/null
+++ b/src/extras/shaders/obj/leedsVehicle_mobile_frag.inc
@@ -0,0 +1,78 @@
+const char *leedsVehicle_mobile_frag_src =
+"uniform sampler2D tex0;\n"
+"uniform sampler2D tex1;\n"
+
+"uniform float u_fxparams;\n"
+"uniform vec3 u_skyTop;\n"
+"uniform vec3 u_skyBot;\n"
+
+"#define shininess (u_fxparams)\n"
+
+"// matfx:\n"
+"// case 1	normal envmap\n"
+"// 	custom1 (4.0,  1.0, 1.0, coef)\n"
+"// 	custom2 (0.25, 3.0, 1.0, 1.0)\n"
+"// case 2	too strong\n"
+"// 	custom1 (4.0, 1.0, 2.0, coef)\n"
+"// 	custom2 (0.5, 3.0, 1.0, 1.0)\n"
+"// ???:		practically no fresnel\n"
+"// 	custom1 (4.0, 1.25, 0.01, coef)\n"
+"// 	custom2 (1.0, 2.0,  1.1,  2.0)\n"
+
+"#define power (4.0)\n"
+
+"#define preMult (1.0)\n"
+"#define postMult (1.0)\n"
+"#define minRefl (0.25)\n"
+"#define maxRefl (3.0)\n"
+"#define minOpacity (1.0)\n"
+"#define maxOpacity (1.0)\n"
+
+"//#define preMult (1.0)\n"
+"//#define postMult (2.0)\n"
+"//#define minRefl (0.5)\n"
+"//#define maxRefl (3.0)\n"
+"//#define minOpacity (1.0)\n"
+"//#define maxOpacity (1.0)\n"
+
+"//#define preMult (1.25)\n"
+"//#define postMult (0.01)\n"
+"//#define minRefl (1.0)\n"
+"//#define maxRefl (2.0)\n"
+"//#define minOpacity (1.1)\n"
+"//#define maxOpacity (2.0)\n"
+
+"FSIN vec4 v_color;\n"
+"FSIN vec2 v_tex0;\n"
+"FSIN vec2 v_tex1;\n"
+"FSIN float v_fog;\n"
+"FSIN vec2 v_reflData;\n"
+
+"#define v_NdotV (v_reflData.x)\n"
+"#define v_lightingCont (v_reflData.y)\n"
+
+"void\n"
+"main(void)\n"
+"{\n"
+"	vec4 pass1 = v_color*texture(tex0, vec2(v_tex0.x, 1.0-v_tex0.y));\n"
+
+"	vec3 envtex = texture(tex1, v_tex1).rgb;	// V flipped\n"
+"	vec3 skyColour = mix(u_skyBot, u_skyTop, envtex.g);\n"
+"	vec3 envOut = mix(envtex.rrr, skyColour, envtex.b);\n"
+
+"	float fresnel = mix(shininess, shininess * 2.0, v_NdotV);\n"
+"	fresnel = pow(v_NdotV * preMult, power);\n"
+"	fresnel = clamp(fresnel * postMult, 0.0, 1.0);\n"
+"	float reflectivity = v_lightingCont * mix(minRefl, maxRefl, fresnel)*shininess;\n"
+
+"	float opacity = mix(minOpacity, maxOpacity, fresnel)*pass1.a;\n"
+"	vec4 color = pass1 + vec4(reflectivity * envOut, 0.0);\n"
+"	color.a = opacity;\n"
+
+"	color.rgb = mix(u_fogColor.rgb, color.rgb, v_fog);\n"
+
+"	DoAlphaTest(color.a);\n"
+
+"	FRAGCOLOR(color);\n"
+"}\n"
+;
-- 
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