Setting: maxDistance configurable.

Author: gonnavis

examples/jsm/postprocessing/SSRrPass.js

@@ -40,6 +40,7 @@ var SSRrPass = function ( { renderer, scene, camera, width, height, selects, enc
 	// this.output = 1;
 
 	this.ior = SSRrShader.uniforms.ior.value;
+	this.maxDistance = SSRrShader.uniforms.maxDistance.value;
 	this.surfDist = SSRrShader.uniforms.surfDist.value;
 
 	this.encoding = encoding;
@@ -290,6 +291,7 @@ SSRrPass.prototype = Object.assign( Object.create( Pass.prototype ), {
 		// render SSRr
 
 		this.ssrrMaterial.uniforms[ 'ior' ].value = this.ior;
+		this.ssrrMaterial.uniforms[ 'maxDistance' ].value = this.maxDistance;
 		this.ssrrMaterial.uniforms[ 'surfDist' ].value = this.surfDist;
 		this.ssrrMaterial.uniforms[ 'tSpecular' ].value = this.specularRenderTarget.texture;
 		this.renderPass( renderer, this.ssrrMaterial, this.ssrrRenderTarget );

examples/jsm/shaders/SSRrShader.js

@@ -26,6 +26,7 @@ var SSRrShader = {
     "cameraInverseProjectionMatrix": { value: new Matrix4() },
     "ior": { value: 1.03 },
     "cameraRange": { value: 0 },
+    "maxDistance": { value: 180 },
     "surfDist": { value: .007 },
 
   },
@@ -61,6 +62,7 @@ var SSRrShader = {
 		uniform float ior;
 		uniform mat4 cameraProjectionMatrix;
 		uniform mat4 cameraInverseProjectionMatrix;
+		uniform float maxDistance;
 		uniform float surfDist;
 		#include <packing>
 		float pointToLineDistance(vec3 x0, vec3 x1, vec3 x2) {
@@ -141,7 +143,6 @@ var SSRrShader = {
 			vec3 viewRefractDir=refract(viewIncidentDir,viewNormalSelects,1./ior);
 			// https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/refract.xhtml
 
-			float maxDistance=100.;
 			vec3 d1viewPosition=viewPosition+viewRefractDir*maxDistance;
 			#ifdef PERSPECTIVE_CAMERA
 				if(d1viewPosition.z>-cameraNear){

examples/screenshots/webgl_postprocessing_ssrr.jpg

@@ -215,7 +215,9 @@
 			});
 			ssrrPass.surfDist = 0.1;
 			folder.add( ssrrPass, 'surfDist' ).min( 0 ).max( .3 ).step( .001 );
-			folder.open()
+			ssrrPass.maxDistance = 15;
+			folder.add( ssrrPass, 'maxDistance' ).min( 0 ).max( 20 ).step( .001 )
+			// folder.open()
 			// gui.close()
 
 		}