Everything works as intended

src/main/java/com/simibubi/create/foundation/render/backend/effects/EffectsHandler.java

@@ -97,9 +97,7 @@ public class EffectsHandler {
 		program.bindDepthTexture(mainBuffer.getDepthAttachment());
 
 		GameRenderer gameRenderer = Minecraft.getInstance().gameRenderer;
-		//Matrix4f projection = gameRenderer.getBasicProjectionMatrix(gameRenderer.getActiveRenderInfo(), AnimationTickHolder.getPartialTicks(), true);
-		Matrix4f projection = Backend.projectionMatrix.copy();
-		//projection.a23 = projection.a32 = 0;
+		Matrix4f projection = gameRenderer.getBasicProjectionMatrix(gameRenderer.getActiveRenderInfo(), AnimationTickHolder.getPartialTicks(), true);
 		projection.a33 = 1;
 		projection.invert();
 		program.bindInverseProjection(projection);
@@ -111,7 +109,6 @@ public class EffectsHandler {
 		Vector3d pos1 = new Vector3d(330, 0, 110);
 		Vector3d cameraPos = gameRenderer.getActiveRenderInfo().getProjectedView();
 
-		program.setTestParam((float) (Math.E - 0.99));
 		program.setCameraPos(cameraPos.inverse());
 
 		for (int i = 0; i < 16; i++) {

src/main/java/com/simibubi/create/foundation/render/backend/effects/SphereFilterProgram.java

@@ -17,15 +17,17 @@ import net.minecraft.util.math.vector.Vector3d;
 
 public class SphereFilterProgram extends GlProgram {
 
-	protected static final int BLOCK_BINDING = 4;
+	protected static final int UBO_BINDING = 4;
 
-	protected static final int SPHERE_FILTER_SIZE = 4 * 16 + 16 + 4 * 16 * 16;
+	protected static final int SPHERE_FILTER_SIZE = 24 * 4; // <vec4, float + padding, mat4>
+	protected static final int MAX_FILTERS = 16; // arbitrary
 
-	protected static final int MAX_FILTERS = 16;
+	protected static final int EXTRA_INFO = 16; // array length: int + padding
+	protected static final int ALL_FILTERS_SIZE = MAX_FILTERS * SPHERE_FILTER_SIZE;
 
-	protected static final int BUFFER_SIZE = 4 + MAX_FILTERS * SPHERE_FILTER_SIZE;
+	protected static final int BUFFER_SIZE = EXTRA_INFO + ALL_FILTERS_SIZE;
 
-	GlBuffer effectsUBO;
+	public final GlBuffer effectsUBO;
 
 	protected final ArrayList<FilterSphere> filters = new ArrayList<>(16);
 
@@ -41,11 +43,6 @@ public class SphereFilterProgram extends GlProgram {
 	protected final int uFarPlane;
 
 	protected final int uCameraPos;
-	protected final int testParam;
-//	protected final int uSphereCenter;
-//	protected final int uSphereRadius;
-//	protected final int uSphereFeather;
-//	protected final int uColorFilter;
 
 	public SphereFilterProgram(ResourceLocation name, int handle) {
 		super(name, handle);
@@ -54,11 +51,11 @@ public class SphereFilterProgram extends GlProgram {
 
 		uniformBlock = GL31.glGetUniformBlockIndex(handle, "Filters");
 
-		GL31.glUniformBlockBinding(handle, uniformBlock, BLOCK_BINDING);
+		GL31.glUniformBlockBinding(handle, uniformBlock, UBO_BINDING);
 
 		effectsUBO.bind();
 		effectsUBO.alloc(BUFFER_SIZE, GL20.GL_STATIC_DRAW);
-		GL31.glBindBufferBase(effectsUBO.getBufferType(), BLOCK_BINDING, effectsUBO.handle());
+		GL31.glBindBufferBase(effectsUBO.getBufferType(), UBO_BINDING, effectsUBO.handle());
 		effectsUBO.unbind();
 
 		uInverseProjection = getUniformLocation("uInverseProjection");
@@ -66,12 +63,6 @@ public class SphereFilterProgram extends GlProgram {
 		uNearPlane = getUniformLocation("uNearPlane");
 		uFarPlane = getUniformLocation("uFarPlane");
 		uCameraPos = getUniformLocation("uCameraPos");
-		testParam = getUniformLocation("testParam");
-//
-//		uSphereCenter = getUniformLocation("uSphereCenter");
-//		uSphereRadius = getUniformLocation("uSphereRadius");
-//		uSphereFeather = getUniformLocation("uSphereFeather");
-//		uColorFilter = getUniformLocation("uColorFilter");
 
 		bind();
 		uDepth = setSamplerBinding("uDepth", 8);
@@ -87,10 +78,6 @@ public class SphereFilterProgram extends GlProgram {
 		GL20.glUniform1f(uFarPlane, farPlane);
 	}
 
-	public void setTestParam(float farPlane) {
-		GL20.glUniform1f(testParam, farPlane);
-	}
-
 	public void setCameraPos(Vector3d pos) {
 		GL20.glUniform3f(uCameraPos, (float) pos.x, (float) pos.y, (float) pos.z);
 	}
@@ -109,15 +96,6 @@ public class SphereFilterProgram extends GlProgram {
 		effectsUBO.unbind(GL20.GL_ARRAY_BUFFER);
 	}
 
-//	public void setSphere(FilterSphere sphere) {
-//		GL20.glUniform3f(uSphereCenter, (float) sphere.center.x, (float) sphere.center.y, (float) sphere.center.z);
-//
-//		GL20.glUniform1f(uSphereRadius, sphere.radius);
-//		GL20.glUniform1f(uSphereFeather, sphere.feather);
-//
-//		uploadMatrixUniform(uColorFilter, sphere.filter);
-//	}
-
 	public void bindInverseProjection(Matrix4f mat) {
 		uploadMatrixUniform(uInverseProjection, mat);
 	}
@@ -141,7 +119,6 @@ public class SphereFilterProgram extends GlProgram {
 		buf.position(16);
 		FloatBuffer floatBuffer = buf.asFloatBuffer();
 
-		//floatBuffer.position(4);
 		filters.forEach(it -> it.write(floatBuffer));
 	}
 
@@ -179,7 +156,7 @@ public class SphereFilterProgram extends GlProgram {
 					(float) center.z,
 					radius,
 					feather,
-					0,
+					0, // padding, we could add more parameters here
 					0,
 					0
 			});

src/main/resources/assets/create/flywheel/shaders/area_effect.frag

@@ -1,7 +1,5 @@
 #version 140
 
-#define LC 1.7282818// e - 0.99
-
 #flwinclude <"create:core/color.glsl">
 
 in vec2 ScreenCoord;
@@ -16,11 +14,6 @@ uniform float uNearPlane = 0.15;
 uniform float uFarPlane = 1.;
 uniform vec3 uCameraPos;
 
-uniform float testParam = 2.0;
-
-uniform mat4 uInverseProjection;
-uniform mat4 uInverseView;
-
 struct SphereFilter {
     vec4 sphere;// <vec3 position, float radius>
     float feather;
@@ -35,8 +28,7 @@ layout (std140) uniform Filters {
 
 float linearizeDepth(float d, float zNear, float zFar) {
     float clipZ = 2.0 * d - 1.0;
-    float linearized = zNear * zFar / (zFar + zNear - clipZ * (zFar - zNear));
-    return LC * linearized;
+    return zNear * zFar / (zFar + zNear - clipZ * (zFar - zNear));
 }
 
 vec4 filterColor(mat4 colorOp, vec4 frag) {
@@ -49,11 +41,7 @@ vec4 filterColor(mat4 colorOp, vec4 frag) {
 float getDepth() {
     float depth = texture2D(uDepth, ScreenCoord).r;
 
-    depth = linearizeDepth(depth, uNearPlane, uFarPlane);
-    //depth = (depth - uNearPlane) / (uFarPlane - uNearPlane);
-    //depth = depth / uFarPlane;
-
-    return depth;
+    return linearizeDepth(depth, uNearPlane, uFarPlane);
 }
 
 vec4 applyFilters(vec3 worldPos, vec4 diffuse) {
@@ -85,6 +73,6 @@ void main() {
 
     vec4 diffuse = texture2D(uColor, ScreenCoord);
 
-    //Color = applyFilters(worldPos, diffuse);
-    Color = debugGrid(worldPos, diffuse);
+    Color = applyFilters(worldPos, diffuse);
+    //Color = debugGrid(worldPos, diffuse);
 }

src/main/resources/assets/create/flywheel/shaders/area_effect.vert

@@ -1,5 +1,9 @@
 #version 140
 
+// scaling constants
+#define SXY 1.7282818// e - 0.99, this works too well
+#define SZ 1.905// who knows, but it works
+
 in vec4 aVertex;// <vec2 position, vec2 texCoords>
 
 out vec2 ScreenCoord;
@@ -17,6 +21,6 @@ void main() {
     clip *= uInverseProjection;
 
     vec3 cameraDir = clip.xyz / clip.w;
+    cameraDir = cameraDir * vec3(SXY, SXY, SZ);
     WorldDir = (uInverseView * vec4(cameraDir, 1.)).xyz;
-    //worldDirection = (uInverseProjection * vec4(aVertex.xy, 0, 1.)).xyz;
 }