X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Fmodel_sky.h;h=f8f88d3d1a19ef6e9c205c6006b3d943b56807bc;hb=aae2ef3e087d980130ea12cb90df15bb3d85ec65;hp=0bf67512e38ff29c4fc51bbdaacc882a803e4eca;hpb=1a7f4a35e88698bdb45c90f646f1645589d5511c;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/model_sky.h b/shaders/model_sky.h
index 0bf6751..f8f88d3 100644
--- a/shaders/model_sky.h
+++ b/shaders/model_sky.h
@@ -78,6 +78,11 @@ static struct vg_shader _shader_model_sky = {
 "const vec3 uCamera = vec3(0.0);\n"
 "\n"
 "#line       1        1 \n"
+"// :D\n"
+"const float CLEARSKIES_LIGHT_DOT_MIN = 0.0;\n"
+"\n"
+"#line     13        0 \n"
+"#line       1        2 \n"
 "layout (location = 0) out vec4 oColour;\n"
 "\n"
 "// OpenGL wiki: Recommends do not use vec3 because of drivers. hence the v4s...\n"
@@ -230,8 +235,9 @@ static struct vg_shader _shader_model_sky = {
 "                               g_sunset_phase );\n"
 "\n"
 "   vec3  sky_reflection = 0.5 * fresnel * reflect_colour;\n"
-"   vec3  light_sun      = max(0.0,dot(normal,g_sun_dir.xyz)*0.75+0.25) \n"
-"                           * g_sun_colour.rgb * g_day_phase;\n"
+"   vec3  light_sun      = max( CLEARSKIES_LIGHT_DOT_MIN, \n"
+"                               dot(normal,g_sun_dir.xyz)*0.75+0.25\n"
+"                           ) * g_sun_colour.rgb * g_day_phase;\n"
 "\n"
 "   float scaled_shadow = max( shadow, 1.0 - max(g_sun_dir.y,0.0) );\n"
 "   vec3 ambient = mix( g_ambient_colour.rgb, g_sunset_ambient.rgb, \n"
@@ -409,8 +415,8 @@ static struct vg_shader _shader_model_sky = {
 "   return scene_apply_fog( diffuse * total_light, fog_colour, fdist );\n"
 "}\n"
 "\n"
-"#line     13        0 \n"
-"#line       1        2 \n"
+"#line     14        0 \n"
+"#line       1        3 \n"
 "const float k_motion_lerp_amount = 0.01;\n"
 "\n"
 "#line      2        0 \n"
@@ -429,7 +435,7 @@ static struct vg_shader _shader_model_sky = {
 "   oMotionVec = (vmotion1-vmotion0) * (1.0/k_motion_lerp_amount);\n"
 "}\n"
 "\n"
-"#line     14        0 \n"
+"#line     15        0 \n"
 "\n"
 "void main()\n"
 "{\n"