Cruor

Realistic blood and gore, built for performance.

Features

• Blood spray: Hits produce flying droplets, fine mist, and heavier bursts.
• Dynamic wounds: Cuts, bullet holes, bruises, and other wounds appear directly on creatures and follow their animations.
• Bloodied equipment: Blood sticks to armour, clothing, and melee weapons, including when weapons are dropped and picked up again.
• Persistent stains: Blood splatters across floors, walls, ceilings, and other surfaces.
• Pools and drips: Blood collects, spreads, runs down walls, and drips from ledges.
• Bleeding: Injured creatures leave trails of blood or form pools beneath themselves.
• Footprints: Walking through wet blood leaves fading shoe prints, paw prints, hoofprints, and more.
• Realistic surfaces: Blood behaves differently on wool, dirt, wood, glass, ice, and other materials.
• Soaking through: Blood seeps through certain blocks and can stain the surface on the other side.
• Water and lava: Blood disperses into water and hisses when it hits lava.
• Drying: Fresh, glossy blood gradually darkens and forms a dried crust.
• World persistence: Stains remain when you leave and return to a world or server.
• Custom blood: Change blood colours and define different blood types through resource packs.

Blood Styles

Choose a palette for ordinary blood:

NATURAL · GREEN · BLUE · PURPLE · BLACK · CUSTOM

Bleeding and Wounds

• Slash wounds follow the direction of the swing.
• Bullet wounds leave dark entry marks and dripping blood.
• Blunt impacts leave bruised, patchy smears.
• Explosions scatter smaller wounds across the body.
• Wounds drip, dry, and fade as creatures recover.
• Blood can splash back onto attackers and nearby creatures.
• Bloodied armour and clothing retain their own stains.

Ragdoll Support

Cruor integrates with Ragdollified and Ragdollified Amputation.

• Wounds stay on the body parts where they originally appeared.
• Blood continues dripping from ragdolls as they tumble or lie on the ground.
• Clothing, armour, and other outer layers retain their blood.
• Detached limbs keep their wounds and continue bleeding.
• Amputations can produce bleeding stumps and continuing blood loss.
• Impacts against the ground or walls can produce additional splashes.

Both integrations are optional.

Compatibility

Performance

Cruor is designed to handle large amounts of blood without relying on a physics engine or vanilla particles.

• Efficient droplets: Lightweight calculations handle flight, gravity, and collisions.
• Batched rendering: Blood across nearby blocks is grouped together to reduce draw calls.
• Cached stains: Settled blood is not rebuilt every frame.
• Shader-driven effects: Pools spread smoothly and develop dried edges without constant CPU updates.
• Controlled effects: Adjust droplet counts, stain limits, render distance, and blood intensity.
• Performance monitoring: View droplet counts, tracked stains, rebuild times, and rendering costs on the F3 screen.

Configuration

Client configuration: cruor-client.toml

Choose between MILD, REALISTIC, and EXTREME presets, then fine-tune individual effects.

Supported Versions

Dependencies

• Required: None
• Optional: Ragdollified, Ragdollified Amputation, Entity Model Features, Oculus

Cruor can run on the client, the server, or both. Installing it on both sides provides more accurate hit detection and synchronized blood effects.