diff options
Diffstat (limited to 'src/main/java/me/xmrvizzy/skyblocker/utils/culling')
3 files changed, 81 insertions, 0 deletions
diff --git a/src/main/java/me/xmrvizzy/skyblocker/utils/culling/OcclusionCulling.java b/src/main/java/me/xmrvizzy/skyblocker/utils/culling/OcclusionCulling.java new file mode 100644 index 00000000..e9a25fc3 --- /dev/null +++ b/src/main/java/me/xmrvizzy/skyblocker/utils/culling/OcclusionCulling.java @@ -0,0 +1,48 @@ +package me.xmrvizzy.skyblocker.utils.culling; + +import com.logisticscraft.occlusionculling.OcclusionCullingInstance; +import com.logisticscraft.occlusionculling.cache.ArrayOcclusionCache; +import com.logisticscraft.occlusionculling.util.Vec3d; + +import me.xmrvizzy.skyblocker.utils.FrustumUtils; +import net.minecraft.client.MinecraftClient; + +public class OcclusionCulling { + private static final int TRACING_DISTANCE = 128; + private static final MinecraftClient CLIENT = MinecraftClient.getInstance(); + private static OcclusionCullingInstance instance = null; + + // Reused objects to reduce allocation overhead + private static Vec3d cameraPos = new Vec3d(0, 0, 0); + private static Vec3d min = new Vec3d(0, 0, 0); + private static Vec3d max = new Vec3d(0, 0, 0); + + /** + * Initializes the occlusion culling instance + */ + public static void init() { + instance = new OcclusionCullingInstance(TRACING_DISTANCE, new WorldProvider(), new ArrayOcclusionCache(TRACING_DISTANCE), 2); + } + + private static void updateCameraPos() { + var camera = CLIENT.gameRenderer.getCamera().getPos(); + cameraPos.set(camera.x, camera.y, camera.z); + } + + /** + * This first checks checks if the bounding box is within the camera's FOV, if + * it is then it checks for whether it's occluded or not. + * + * @return A boolean representing whether the bounding box is fully visible or + * not. + */ + public static boolean isVisible(double x1, double y1, double z1, double x2, double y2, double z2) { + if (!FrustumUtils.isVisible(x1, y1, z1, x2, y2, z2)) return false; + + updateCameraPos(); + min.set(x1, y1, z1); + max.set(x2, y2, z2); + + return instance.isAABBVisible(min, max, cameraPos); + } +} diff --git a/src/main/java/me/xmrvizzy/skyblocker/utils/culling/WorldProvider.java b/src/main/java/me/xmrvizzy/skyblocker/utils/culling/WorldProvider.java new file mode 100644 index 00000000..47d92c1f --- /dev/null +++ b/src/main/java/me/xmrvizzy/skyblocker/utils/culling/WorldProvider.java @@ -0,0 +1,29 @@ +package me.xmrvizzy.skyblocker.utils.culling; + +import com.logisticscraft.occlusionculling.DataProvider; + +import net.minecraft.client.MinecraftClient; +import net.minecraft.client.world.ClientWorld; +import net.minecraft.util.math.BlockPos; + +public class WorldProvider implements DataProvider { + private final static MinecraftClient CLIENT = MinecraftClient.getInstance(); + private ClientWorld world = null; + + @Override + public boolean prepareChunk(int chunkX, int chunkZ) { + this.world = CLIENT.world; + return this.world != null; + } + + @Override + public boolean isOpaqueFullCube(int x, int y, int z) { + BlockPos pos = new BlockPos(x, y, z); + return this.world.getBlockState(pos).isOpaqueFullCube(this.world, pos); + } + + @Override + public void cleanup() { + this.world = null; + } +} diff --git a/src/main/java/me/xmrvizzy/skyblocker/utils/culling/package-info.java b/src/main/java/me/xmrvizzy/skyblocker/utils/culling/package-info.java new file mode 100644 index 00000000..c25e7f7a --- /dev/null +++ b/src/main/java/me/xmrvizzy/skyblocker/utils/culling/package-info.java @@ -0,0 +1,4 @@ +/** + * Package dedicated to occlusion culling utilities + */ +package me.xmrvizzy.skyblocker.utils.culling;
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