diff options
| -rw-r--r-- | shaders/lightmap.frag | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/shaders/lightmap.frag b/shaders/lightmap.frag index 8690ffcb..cba5a269 100644 --- a/shaders/lightmap.frag +++ b/shaders/lightmap.frag @@ -5,9 +5,13 @@ layout (location = 1) uniform vec2 center; layout (location = 2) uniform uint falloff; layout (location = 3) uniform vec2 size; -out vec4 color; +out vec3 color; void main() { - vec3 color = color_intensity.xyz; - float dist = color_intensity.w; + vec2 pos = gl_FragCoord.xy; + float I = color_intensity.w; + vec2 tmp = pos - center; + float dist = sqrt(tmp.x*tmp.x + tmp.y*tmp.y); + float alpha = 1 - min(1, dist / I); + color = alpha * color_intensity.xyz; } |