Initial commit

data/shaders/entity.vertex

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+// __multiversion__
+// This signals the loading code to prepend either #version 100 or #version 300 es as apropriate.
+
+// To use centroid sampling we need to have version 300 es shaders, which requires changing:
+// attribute to in
+// varying to out when in vertex shaders or in when in fragment shaders
+// defining an out vec4 FragColor and replacing uses of gl_FragColor with FragColor
+// texture2D to texture
+#if __VERSION__ >= 300
+
+#define attribute in
+#define varying out
+#ifdef MSAA_FRAMEBUFFER_ENABLED
+#define _centroid centroid
+#else
+#define _centroid
+#endif
+_centroid out vec2 uv;
+
+#else
+varying vec2 uv;
+#endif
+
+uniform MAT4 WORLDVIEWPROJ;
+uniform MAT4 WORLD;
+uniform vec4 TILE_LIGHT_COLOR;
+uniform vec4 OVERLAY_COLOR;
+uniform vec4 CHANGE_COLOR;
+uniform vec4 GLINT_COLOR;
+uniform vec4 FOG_COLOR;
+uniform vec2 FOG_CONTROL;
+uniform float RENDER_DISTANCE;
+uniform vec2 UV_ANIM;
+uniform vec2 UV_OFFSET;
+uniform vec2 UV_ROTATION;
+uniform vec2 GLINT_UV_SCALE;
+
+attribute mediump vec4 POSITION;
+attribute vec2 TEXCOORD_0;
+attribute vec4 NORMAL;
+
+#ifdef COLOR_BASED
+	attribute vec4 COLOR;
+#endif
+
+varying vec4 light;
+varying vec4 fogColor;
+
+#ifdef USE_OVERLAY
+varying vec4 overlayColor;
+#endif
+
+#if defined(USE_COLOR_MASK) || defined(ITEM_IN_HAND) || defined(COLOR_SECOND_TEXTURE)
+varying vec4 changeColor;
+#endif
+
+#ifdef GLINT
+	varying vec2 layer1UV;
+	varying vec2 layer2UV;
+    varying vec4 tileLightColor;
+	varying vec4 glintColor;
+#endif
+
+const float AMBIENT = 0.45;
+
+const float XFAC = -0.1;
+const float ZFAC = 0.1;
+
+float lightIntensity() {
+#ifdef FANCY
+    vec3 N = normalize( WORLD * NORMAL ).xyz;
+
+    N.y *= TILE_LIGHT_COLOR.w; //TILE_LIGHT_COLOR.w contains the direction of the light
+
+    //take care of double sided polygons on materials without culling
+#ifdef FLIP_BACKFACES
+    vec3 viewDir = normalize((WORLD * POSITION).xyz);
+    if( dot(N, viewDir) > 0.0 )
+        N *= -1.0;
+#endif
+
+    float yLight = (1.0+N.y) * 0.5;
+    return yLight * (1.0-AMBIENT) + N.x*N.x * XFAC + N.z*N.z * ZFAC + AMBIENT;
+#else
+    return 1.0;
+#endif
+}
+
+#ifdef GLINT
+vec2 calculateLayerUV(float offset, float rotation) {
+	vec2 uv = TEXCOORD_0;
+	uv -= 0.5;
+	float rsin = sin(rotation);
+	float rcos = cos(rotation);
+	uv = mat2(rcos, -rsin, rsin, rcos) * uv;
+	uv.x += offset;
+	uv += 0.5;
+
+	return uv * GLINT_UV_SCALE;
+}
+#endif
+
+void main()
+{
+    POS4 pos = WORLDVIEWPROJ * POSITION;
+    gl_Position = pos;
+
+    float L = lightIntensity();
+
+#ifdef USE_OVERLAY
+	L += OVERLAY_COLOR.a * 0.35;
+    overlayColor = OVERLAY_COLOR;
+#endif
+
+#if defined(USE_COLOR_MASK) || defined(ITEM_IN_HAND) || defined(COLOR_SECOND_TEXTURE)
+    changeColor = CHANGE_COLOR;
+#endif
+
+    light = vec4(vec3(L) * TILE_LIGHT_COLOR.xyz, 1.0);
+
+#ifdef COLOR_BASED
+	light *= COLOR;
+#endif
+    
+#ifndef NO_TEXTURE
+    uv = TEXCOORD_0;
+#endif
+
+#ifdef USE_UV_ANIM
+	uv.xy += UV_ANIM.xy;
+#endif
+
+#ifdef GLINT
+	glintColor = GLINT_COLOR;
+	layer1UV = calculateLayerUV(UV_OFFSET.x, UV_ROTATION.x);
+	layer2UV = calculateLayerUV(UV_OFFSET.y, UV_ROTATION.y);
+    tileLightColor = TILE_LIGHT_COLOR;
+#endif
+
+
+//fog
+    fogColor.rgb = FOG_COLOR.rgb;
+//    fogColor.a = clamp(((pos.z / RENDER_DISTANCE) - FOG_CONTROL.x) / (FOG_CONTROL.y - FOG_CONTROL.x), 0.0, 1.0);
+    fogColor.a = clamp(((length((WORLD * POSITION).xyz) / RENDER_DISTANCE) - FOG_CONTROL.x) / (FOG_CONTROL.y - FOG_CONTROL.x), 0.0, 1.0);
+}