fix: black/white pixel artifacts during rendering

Yeicor · Sep 13, 2024 · c083073 · c083073
1 parent b4f4639
commit c083073
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/app/scene/sdf/material.frag b/src/app/scene/sdf/material.frag
@@ -102,7 +102,8 @@ vec4[2] sdfRaycast(vec3 rayPos, vec3 rayDir, int maxSteps) {
         }
 
         // Stop condition: out of bounds
-        if (sdfOutOfBoundsDist(rayPos) > 0.0) {
+        // NOTE: small epsilon to avoid pixel artifacts
+        if (sdfOutOfBoundsDist(rayPos) > 1e-4) {
             hitPosAndSample[0] = vec4(rayPos, -2.0);
             break;
         }
@@ -169,4 +170,4 @@ void main() {
     // Compute the depth to fix rendering order of multiple objects.
     vec4 hitPosProj = BVP * vec4(hitPos, 1.0);// TODO: Figure out how to set this...
     gl_FragDepth = hitPosProj.z / hitPosProj.w;
-}
+}