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Diffstat (limited to 'drivers/gles3/shaders/sky.glsl')
-rw-r--r--drivers/gles3/shaders/sky.glsl16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gles3/shaders/sky.glsl b/drivers/gles3/shaders/sky.glsl
index eb1befe38e..4c0fe47f6b 100644
--- a/drivers/gles3/shaders/sky.glsl
+++ b/drivers/gles3/shaders/sky.glsl
@@ -92,6 +92,7 @@ uniform mat4 orientation;
uniform vec4 projection;
uniform vec3 position;
uniform float time;
+uniform float luminance_multiplier;
uniform float fog_aerial_perspective;
uniform vec3 fog_light_color;
@@ -103,6 +104,15 @@ uniform uint directional_light_count;
layout(location = 0) out vec4 frag_color;
+#ifdef USE_DEBANDING
+// https://www.iryoku.com/next-generation-post-processing-in-call-of-duty-advanced-warfare
+vec3 interleaved_gradient_noise(vec2 pos) {
+ const vec3 magic = vec3(0.06711056f, 0.00583715f, 52.9829189f);
+ float res = fract(magic.z * fract(dot(pos, magic.xy))) * 2.0 - 1.0;
+ return vec3(res, -res, res) / 255.0;
+}
+#endif
+
void main() {
vec3 cube_normal;
cube_normal.z = -1.0;
@@ -149,6 +159,8 @@ void main() {
}
+ color *= luminance_multiplier;
+
// Convert to Linear for tonemapping so color matches scene shader better
color = srgb_to_linear(color);
color *= exposure;
@@ -165,4 +177,8 @@ void main() {
frag_color.rgb = color;
frag_color.a = alpha;
+
+#ifdef USE_DEBANDING
+ frag_color.rgb += interleaved_gradient_noise(gl_FragCoord.xy);
+#endif
}