Your own chams

We’ll write a chams material from scratch: scanlines climbing the body, a bright rim, halftone dots behind walls, and a speed slider in the menu. It replaces the cheat’s own chams on enemies. Everything here is @native/scene. No pipelines, no buffers.

Step 1: The surface

A material is one HLSL function. It gets the pixel (position, normal, how much it faces you, time…) and returns a color. Create src/index.ts:

import scene from "@native/scene";
import entities from "@native/entities";

const hologram = scene.material({
    color: "#4fd8ff",
    params: { speed: 0.6, lineSpacing: 6, rimColor: "#bff4ff" },
    hlsl: `
float4 Surface(SurfaceInput s, MaterialParams p)
{
    // horizontal bands moving up the body
    const float band = frac(s.position.z / max(p.lineSpacing, 0.5f) - s.time * p.speed);
    const float scan = smoothstep(0.0f, 0.08f, band) * (1.0f - smoothstep(0.35f, 0.5f, band));
    // bright where the surface turns away from you
    const float rim = pow(1.0f - s.facing, 2.5f);
    const float3 col = s.color.rgb * (0.3f + scan) + p.rimColor.rgb * rim * 1.5f;
    return float4(col, s.color.a * saturate(0.12f + scan * 0.55f + rim));
}`,
});

params become fields of p. Each keeps its type: speed is a float, rimColor a float4 in 0..1.

Step 2: Draw it on enemies

on("render", () => {
    const me = entities.getLocalPlayer();
    if (!me) return;

    for (const pawn of entities.getPlayers({ skipLocal: true })) {
        if (pawn.m_iHealth > 0 && pawn.isEnemy(me))
            scene.player(pawn, hologram, { replace: true });
    }
});

replace: true switches the cheat’s own chams off for those players while you draw them. Drop it and you get both, one on top of the other. The model comes from the same skinned pose the cheat’s chams use, in the same frame, so it doesn’t trail behind the player.

Step 3: X-ray with its own look

Turn on xray and the material runs a second time for the parts behind walls, with s.occluded = true and s.color set to occludedColor. Branch on it:

const hologram = scene.material({
    color: "#4fd8ff",
    xray: true,
    occludedColor: "#ff4a7a90",
    params: { speed: 0.6, lineSpacing: 6, rimColor: "#bff4ff", dotSize: 6 },
    hlsl: `
float4 Surface(SurfaceInput s, MaterialParams p)
{
    if (s.occluded)
    {
        // halftone dots in screen space, bigger towards the silhouette
        const float2 cell = frac(s.screenUv * camera.screen.xy / p.dotSize) - 0.5f;
        const float r = lerp(0.18f, 0.48f, pow(1.0f - s.facing, 1.5f));
        return float4(s.color.rgb, s.color.a * (1.0f - smoothstep(r - 0.06f, r + 0.06f, length(cell))));
    }

    const float band = frac(s.position.z / max(p.lineSpacing, 0.5f) - s.time * p.speed);
    const float scan = smoothstep(0.0f, 0.08f, band) * (1.0f - smoothstep(0.35f, 0.5f, band));
    const float rim = pow(1.0f - s.facing, 2.5f);
    const float3 col = s.color.rgb * (0.3f + scan) + p.rimColor.rgb * rim * 1.5f;
    return float4(col, s.color.a * saturate(0.12f + scan * 0.55f + rim));
}`,
});

camera is the frame camera from gpu.hlsli, already declared for you.

Material properties and parameters can change any time; the upload happens once a frame.

import ui from "@native/ui";

const group = ui.page("Hologram", { icon: "eye" }).group("Look");
const speed = group.slider("Scan speed", { min: 0, max: 4, default: 0.6, precision: 2 });
const color = group.color("Color", { default: "#4fd8ff" });

ui.effect(() => {
    hologram.set("speed", speed.value);
    hologram.color = color.value;
});

ui.effect re-runs whenever a value it reads changes, so the material follows the menu with no polling.

When it doesn’t show up

A compile error goes to the log once, with your line numbers. Until the material compiles, its draws are skipped.
Return straight alpha: the scene premultiplies for you.
scene.player only works inside on("render"), like every draw call.

Learn

Step 1: The surface

Step 2: Draw it on enemies

Step 3: X-ray with its own look

Step 4: A menu

When it doesn’t show up

​Step 1: The surface

​Step 2: Draw it on enemies

​Step 3: X-ray with its own look

​Step 4: A menu

​When it doesn’t show up

Step 1: The surface

Step 2: Draw it on enemies

Step 3: X-ray with its own look

Step 4: A menu

When it doesn’t show up