X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Fsky.h;h=09329f5aa8b1305196882faa08d72c6776412e99;hb=681a5c0d7a135ba78655d9cb6d1476a50a4e4709;hp=01bc5c2fbce9d26ae0d5ae0a5dfd490c0f5fa106;hpb=3bb0287d544a4cb75de9afe2927ac8e946f3a18e;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/sky.h b/shaders/sky.h
index 01bc5c2..09329f5 100644
--- a/shaders/sky.h
+++ b/shaders/sky.h
@@ -23,14 +23,17 @@ static struct vg_shader _shader_sky = {
 "out vec2 aUv;\n"
 "out vec3 aNorm;\n"
 "out vec3 aCo;\n"
+"out vec3 aWorldCo;\n"
 "\n"
 "void main()\n"
 "{\n"
-"   gl_Position = uPv * vec4( uMdl * vec4(a_co,1.0), 1.0 );\n"
+"   vec3 world_pos = uMdl * vec4(a_co,1.0);\n"
+"   gl_Position = uPv * vec4( world_pos, 1.0 );\n"
 "   aColour = a_colour;\n"
 "   aUv = a_uv;\n"
 "   aNorm = mat3(uMdl) * a_norm;\n"
 "   aCo = a_co;\n"
+"   aWorldCo = world_pos;\n"
 "}\n"
 ""},
    .fs = 
@@ -51,7 +54,7 @@ static struct vg_shader _shader_sky = {
 "void main()\n"
 "{\n"
 "   float fintensity = 1.0-(abs(aNorm.y)*0.7);\n"
-"   float fblend = pow(fintensity,8.0);\n"
+"   float fblend = pow(fintensity,4.0);\n"
 "   vec3 horizon = vec3( 0.8, 0.9, 0.9 );\n"
 "   vec3 skycolour = vec3( 0.5, 0.6, 0.9 );\n"
 "   vec3 diffuse = mix( skycolour, horizon, fblend );\n"
@@ -67,8 +70,8 @@ static struct vg_shader _shader_sky = {
 "   vec3 colour_ocean = vec3( 0.61, 0.84, 0.9 );\n"
 "   float fhorizon = step( aNorm.y * 0.5 + 0.5, 0.5 );\n"
 "\n"
-"   vec3 skycomp = mix(diffuse, vec3(1.0,1.0,1.0), cloud_e*(1.0-fblend*3.0));\n"
-"   FragColor = vec4(skycomp,1.0);\n"
+"   vec3 skycomp = mix(diffuse, vec3(1.0,1.0,1.0), cloud_e);\n"
+"   FragColor = vec4(pow(skycomp, vec3(1.5)),1.0);\n"
 "}\n"
 ""},
 };