fuckin hell

[carveJwlIkooP6JGAAIwe30JlM.git] / shaders / model_sky.fs

diff --git a/shaders/model_sky.fs b/shaders/model_sky.fs
new file mode 100644 (file)
index 0000000..036f244
--- /dev/null
+++ b/shaders/model_sky.fs
@@ -0,0 +1,37 @@
+layout (location = 0) out vec4 oColour;
+
+uniform vec4 uColour;
+uniform sampler2D uTexGarbage;
+uniform float uTime;
+
+in vec4 aColour;
+in vec2 aUv;
+in vec3 aNorm;
+in vec3 aCo;
+
+#include "motion_vectors_fs.glsl"
+
+void main()
+{
+   compute_motion_vectors();
+
+   float fintensity = 1.0-(abs(aNorm.y)*0.7);
+   float fblend = pow(fintensity,4.0);
+   vec3 horizon = vec3( 0.8, 0.9, 0.9 );
+   vec3 skycolour = vec3( 0.5, 0.6, 0.9 );
+   vec3 diffuse = mix( skycolour, horizon, fblend );
+
+   float fmove = uTime * 0.004;
+   vec2 cloudplane = (aNorm.xz / (aNorm.y*sign(aNorm.y))) * 0.05;
+   vec4 clouds1 = texture( uTexGarbage, cloudplane + vec2(0.1,0.4)*fmove*2.0 );
+   vec4 clouds2 = texture( uTexGarbage, cloudplane + vec2(0.3,0.1)*fmove );
+
+   float cloud_d = max(clouds1.b*clouds2.r -0.2 - clouds2.g*0.4,0.0);
+   float cloud_e = pow(cloud_d,1.5)*pow(abs(aNorm.y),0.3)*2.0;
+
+   vec3 colour_ocean = vec3( 0.61, 0.84, 0.9 );
+   float fhorizon = step( aNorm.y * 0.5 + 0.5, 0.5 );
+
+   vec3 skycomp = mix(diffuse, vec3(1.0,1.0,1.0), cloud_e);
+   oColour = vec4(pow(skycomp, vec3(1.5)),1.0);
+}