diff options
Diffstat (limited to 'cwd/shaders/sky.fs')
-rw-r--r-- | cwd/shaders/sky.fs | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/cwd/shaders/sky.fs b/cwd/shaders/sky.fs index 23f6ada..36d65a5 100644 --- a/cwd/shaders/sky.fs +++ b/cwd/shaders/sky.fs @@ -3,10 +3,12 @@ in vec2 uvPos; in vec3 pos; -uniform sampler2D textureAtlas; +uniform sampler2DArray textureAtlas; uniform float DayTime; uniform vec4 sunTexture; +uniform float sunTextureLayer; uniform vec4 moonTexture; +uniform float moonTextureLayer; const vec4 DaySkyColor = vec4(0.49,0.66,1, 1); @@ -14,20 +16,21 @@ const vec3 SunPos = vec3(0,0.1,0.5); const vec3 MoonPos = vec3(0,0.1,-0.5); -vec2 TransformTextureCoord(vec4 TextureAtlasCoords, vec2 UvCoords) { +vec3 TransformTextureCoord(vec4 TextureAtlasCoords, vec2 UvCoords, float Layer) { float x = TextureAtlasCoords.x; float y = TextureAtlasCoords.y; float w = TextureAtlasCoords.z; float h = TextureAtlasCoords.w; vec2 A = vec2(x, 1 - y - h); vec2 B = vec2(x + w, 1 - y); - return A + UvCoords * (B - A); + vec2 transformed = A + UvCoords * (B - A); + return vec3(transformed.x, transformed.y, Layer); } vec4 Sun() { vec3 sunDelta = (pos - SunPos)*3.0f; float distanceToSun = length(sunDelta); - vec4 sunColor = texture(textureAtlas,TransformTextureCoord(sunTexture,(vec2(sunDelta.xy)+0.5f))); + vec4 sunColor = texture(textureAtlas,TransformTextureCoord(sunTexture,(vec2(sunDelta.xy)+0.5f),sunTextureLayer)); vec4 sun = mix(vec4(0,0,0,1),sunColor,clamp(1-distanceToSun*2.0f,0,1)); return sun; } @@ -35,7 +38,7 @@ vec4 Sun() { vec4 Moon() { vec3 moonDelta = (pos - MoonPos)*4.5f; float distanceToMoon = length(moonDelta); - vec4 moonColor = texture(textureAtlas,TransformTextureCoord(moonTexture,(vec2(moonDelta.xy)+0.5f))); + vec4 moonColor = texture(textureAtlas,TransformTextureCoord(moonTexture,(vec2(moonDelta.xy)+0.5f),moonTextureLayer)); vec4 moon = mix(vec4(0,0,0,1),moonColor,clamp(1-distanceToMoon*2.0f,0,1)); return moon; } |