thin lens aproximation mode MVP

src/main/java/com/replaymod/render/capturer/RealLensCameraContext.java

@@ -1,21 +0,0 @@
-package com.replaymod.render.capturer;
-
-public final class RealLensCameraContext {
-
-    private static final ThreadLocal<RealLensOpenGlFrameCapturer.Data> CURRENT =
-            new ThreadLocal<>();
-
-    private RealLensCameraContext() {}
-
-    public static void set(RealLensOpenGlFrameCapturer.Data data) {
-        CURRENT.set(data);
-    }
-
-    public static RealLensOpenGlFrameCapturer.Data get() {
-        return CURRENT.get();
-    }
-
-    public static void clear() {
-        CURRENT.remove();
-    }
-}

src/main/java/com/replaymod/render/capturer/RealLensOpenGlFrameCapturer.java

@@ -12,8 +12,8 @@ public class RealLensOpenGlFrameCapturer
 
     public static class Data implements CaptureData {
 
-        public final float dx, dy, dz;
-        public final float yaw, pitch;
+        public float dx, dy, dz;
+        public float yaw, pitch;
 
         public Data(float dx, float dy, float dz,
                     float yaw, float pitch) {
@@ -25,12 +25,47 @@ public class RealLensOpenGlFrameCapturer
         }
     }
 
-    private static final Data[] CAMERAS = {
-            new Data( 0.25f,  0.00f, 0f, 0f, 0f),
-            new Data( 0.00f,  0.25f, 0f, 0f, 0f),
-            new Data(-0.25f,  0.00f, 0f, 0f, 0f),
-            new Data( 0.00f, -0.25f, 0f, 0f, 0f)
-    };
+    private static Data[] golden_disk(int n, float r) {
+
+        Data[] points = new Data[n];
+
+        final float GOLDEN_ANGLE = (float) (Math.PI * (3.0 - Math.sqrt(5.0)));
+
+        for (int i = 0; i < n; i++) {
+            float rr = r * (float) Math.sqrt((float) i / n);
+            float t = i * GOLDEN_ANGLE;
+            points[i] = new Data(
+                    rr * (float) Math.cos(t),
+                    rr * (float) Math.sin(t),
+                    0f, 0f, 0f
+            );
+        }
+
+        return points;
+    }
+
+    private static final float FOCAL_DISTANCE = 5.0f;
+    private static final float APERTURE_RADIUS = 0.05f;
+    private static final int SAMPLES = 64;
+
+
+
+    private static Data[] calculateCameras() {
+        Data[] cameras = golden_disk(SAMPLES, APERTURE_RADIUS);
+
+        for (Data cam : cameras) {
+            // Направление от смещённой камеры к фокальной точке (0, 0, FOCAL_DISTANCE)
+            float dirX = 0 - cam.dx;
+            float dirY = 0 - cam.dy;
+            float dirZ = FOCAL_DISTANCE - cam.dz;
+
+            // Вычисляем yaw и pitch из направления
+            cam.yaw = (float) -Math.toDegrees(Math.atan2(dirX, dirZ));
+            cam.pitch = (float) Math.toDegrees(Math.atan2(dirY, Math.sqrt(dirX*dirX + dirZ*dirZ)));
+        }
+
+        return cameras;
+    }
 
     public RealLensOpenGlFrameCapturer(
             WorldRenderer worldRenderer,
@@ -41,30 +76,19 @@ public class RealLensOpenGlFrameCapturer
 
     @Override
     public Map<Channel, RealLensOpenGlFrame> process() {
-
         float partialTicks = renderInfo.updateForNextFrame();
         int frameId = framesDone++;
 
-        OpenGlFrame[] frames = new OpenGlFrame[CAMERAS.length];
+        Data[] cameras = calculateCameras();
 
-        try {
-            for (int i = 0; i < CAMERAS.length; i++) {
+        OpenGlFrame[] frames = new OpenGlFrame[cameras.length];
 
-                RealLensCameraContext.set(CAMERAS[i]);
-
-                frames[i] = renderFrame(
-                        frameId,
-                        partialTicks,
-                        CAMERAS[i]
-                );
-            }
-        } finally {
-            RealLensCameraContext.clear();
+        for (int i = 0; i < cameras.length; i++) {
+            // CAMERAS[i] передаётся в renderFrame → worldRenderer.renderWorld(partialTicks, CAMERAS[i])
+            // → EntityRendererHandler.data = CAMERAS[i]  (автоматически)
+            frames[i] = renderFrame(frameId, partialTicks, cameras[i]);
         }
 
-        return Collections.singletonMap(
-                Channel.BRGA,
-                new RealLensOpenGlFrame(frames)
-        );
+        return Collections.singletonMap(Channel.BRGA, new RealLensOpenGlFrame(frames));
     }
 }

src/main/java/com/replaymod/render/mixin/Mixin_RealLens_Camera.java

@@ -1,10 +1,10 @@
 package com.replaymod.render.mixin;
 
 import com.replaymod.render.capturer.RealLensOpenGlFrameCapturer;
-import com.replaymod.render.capturer.RealLensCameraContext;
 import com.replaymod.render.hooks.EntityRendererHandler;
 import net.minecraft.client.render.GameRenderer;
 import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.client.util.math.Vector3f;
 import net.minecraft.util.math.Matrix4f;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
@@ -18,7 +18,7 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 //#endif
 
 @Mixin(GameRenderer.class)
-public abstract class Mixin_RealLens_Camera {
+public abstract class Mixin_RealLens_Camera implements EntityRendererHandler.IEntityRenderer {
 
     //#if MC>=12005
     //#if MC>=12100
@@ -31,10 +31,8 @@ public abstract class Mixin_RealLens_Camera {
     @Inject(method = "renderWorld", at = @At("HEAD"))
     private void realLens_applyCameraTransform(float partialTicks, long frameStartNano, MatrixStack matrixStack, CallbackInfo ci) {
         //#endif
-
-        RealLensOpenGlFrameCapturer.Data cam = RealLensCameraContext.get();
-        if (cam == null) {
-            System.out.println("renderWorld WITHOUT camera context!");
+        EntityRendererHandler handler = replayModRender_getHandler();
+        if (!(handler != null && handler.data instanceof RealLensOpenGlFrameCapturer.Data)) {
             //#if MC>=12005
             //$$ return matrix;
             //#else
@@ -42,14 +40,22 @@ public abstract class Mixin_RealLens_Camera {
             //#endif
         }
 
+        RealLensOpenGlFrameCapturer.Data cam = (RealLensOpenGlFrameCapturer.Data) handler.data;
+
         //#if MC>=12005
         //$$ matrix.translateLocal(cam.dx, cam.dy, cam.dz);
+        //$$ return matrix;
         //#else
         matrixStack.translate(cam.dx, cam.dy, cam.dz);
         //#endif
 
+        // In Mixin_RealLens_Camera, add rotation after translation
         //#if MC>=12005
-        //$$ return matrix;
+        //$$ matrix.rotateLocal((float) Math.toRadians(cam.pitch), 1, 0, 0);
+        //$$ matrix.rotateLocal((float) Math.toRadians(cam.yaw), 0, 1, 0);
+        //#else
+        matrixStack.multiply(Vector3f.POSITIVE_X.getDegreesQuaternion(cam.pitch));
+        matrixStack.multiply(Vector3f.POSITIVE_Y.getDegreesQuaternion(cam.yaw));
         //#endif
     }
 }

src/main/java/com/replaymod/render/processor/RealLensToBitmapProcessor.java

@@ -55,9 +55,9 @@ public class RealLensToBitmapProcessor
                     int a = (bpp == 4) ? (converted.get(i + 3) & 0xFF) : 255;
 
                     // swap R and B here
-                    accumulator[i]     += r;
+                    accumulator[i]     += b;
                     accumulator[i + 1] += g;
-                    accumulator[i + 2] += b;
+                    accumulator[i + 2] += r;
 
                     if (bpp == 4) {
                         accumulator[i + 3] += a;