X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Fscene_override.fs;h=ec2a89a3a49c19cdeba45eb0c8a7fcb69818f0f5;hb=4eccfd7252f8ff165670842df537441afae5458b;hp=60bf90d9c962cf25ac5f2e38f48bad2e7f398f27;hpb=00653e446d6b1310fa89d3aace70800f9fef4122;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/scene_override.fs b/shaders/scene_override.fs
index 60bf90d..ec2a89a 100644
--- a/shaders/scene_override.fs
+++ b/shaders/scene_override.fs
@@ -6,7 +6,9 @@ uniform vec4 uPlane;
 uniform vec4 uPlayerPos; /* w: distance to uSpawnPos */
 uniform vec4 uSpawnPos;  /* w: inverse distance to uPlayerPos */
 uniform bool uAlphatest;
+uniform vec4 uMapInfo; /* x: min, y: max, z: iso line amount */
 
+#include "light_clearskies_stddef.glsl"
 #include "common_scene.glsl"
 #include "motion_vectors_fs.glsl"
 
@@ -27,7 +29,11 @@ void main(){
    float dither = fract( vDither.g / 71.0 ) - 0.5;
 
    float dcam = (-8.0+distance( aCo, uCamera ))/4.0;
-   if( min(aCo.y*0.5 + dither, dcam + dither) < 0.51 ) discard;
+   float dy0 = aCo.y - uMapInfo.x;
+   float dy1 = uMapInfo.y - aCo.y;
+
+   if( min(min(dy0,dy1)*0.5, dcam) + dither < 0.51 ) 
+      discard;
 
    compute_motion_vectors();
 
@@ -64,6 +70,14 @@ void main(){
    float d3 = distance(p0,aCo);
    emit += vec3(fract(t*0.2-g_realtime+d3*0.2)*max(0.0,1.0-d3*0.2));
 
-   oColour = vec4( vfrag+emit, 1.0 );
+   vfrag += emit;
+
+   if( uMapInfo.z > 0.0 ){
+      float height = fract( aCo.y * 0.1 );
+      float lg = 2.0*length(vec2(dFdx(height), dFdy(height)));
+      vfrag *= 1.0f+(lg*0.2*uMapInfo.z);
+   }
+
+   oColour = vec4( vfrag, 1.0 );
    //oColour = vec4( vfrag, 1.0 );
 }