uniform sampler2D uTexMain;
-uniform sampler2D uTexSceneDepth;
uniform vec3 uCamera;
-uniform vec3 uInverseRatioDepth;
-uniform vec3 uInverseRatioMain;
-uniform bool uDepthCompare;
in vec4 aColour;
in vec2 aUv;
#include "common_world.glsl"
#include "motion_vectors_fs.glsl"
+#include "depth_compare.glsl"
-float linear_depth( float depth, float near, float far )
-{
- float z = depth * 2.0 - 1.0;
- return (2.0 * near * far) / (far + near - z * (far - near));
-}
-
-void main()
-{
+void main(){
+ depth_compare_dither();
compute_motion_vectors();
vec3 qnorm = aNorm;
float dist = distance( aWorldCo, uCamera ) - 0.08;
float opacity = clamp( dist*dist, 0.0, 1.0 );
- if( uDepthCompare ){
- vec2 back_coord = gl_FragCoord.xy * uInverseRatioMain.xy
- * uInverseRatioDepth.xy;
- float back_depth = texture( uTexSceneDepth, back_coord ).r;
- float front_depth = gl_FragCoord.z/gl_FragCoord.w;
-
- back_depth = linear_depth( back_depth, 0.1, 2100.0 );
- float diff = back_depth - front_depth;
-
- vec2 ssuv = gl_FragCoord.xy;
- vec3 vDither = vec3( dot( vec2( 171.0, 231.0 ), ssuv) );
- float dither = fract( vDither.g / 71.0 ) - 0.5;
-
- if( step(0.0,diff)+dither<0.3 )
- discard;
- }
-
oColour = vec4( composite, opacity );
}