[chore]: delete dirs

8 files changed, 0 insertions, 760 deletions

diff --git a/Assets/Shaders/Blur.slang b/Assets/Shaders/Blur.slang
deleted file mode 100644
index 17e4eae..0000000
--- a/Assets/Shaders/Blur.slang
+++ /dev/null
@@ -1,60 +0,0 @@
-struct VSInput
-{
-    float2 position : POSITION;
-    float2 texCoord : TEXCOORD0;
-};
-
-struct VSOutput
-{
-    float4 position : SV_Position;
-    float2 texCoord : TEXCOORD0;
-};
-
-[shader("vertex")]
-VSOutput vertexMain(VSInput input)
-{
-    VSOutput output;
-    output.position = float4(input.position, 0.0, 1.0);
-    output.texCoord = input.texCoord;
-    return output;
-}
-
-Sampler2D u_ScreenTexture;
-uniform float2 u_Resolution;
-uniform float  u_BlurStrength;
-uniform float  u_GlowIntensity;
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    float2 texelSize = 1.0 / u_Resolution;
-    float4 centerColor = u_ScreenTexture.Sample(input.texCoord);
-
-    float brightness = (centerColor.r + centerColor.g + centerColor.b) / 3.0;
-    float glowMask   = smoothstep(0.05, 0.3, brightness);
-
-    float4 blurredColor = float4(0.0, 0.0, 0.0, 0.0);
-    float  totalWeight  = 0.0;
-
-    for (int x = -8; x <= 8; x++)
-    {
-        for (int y = -8; y <= 8; y++)
-        {
-            float2 offset = float2(x, y) * texelSize * u_BlurStrength;
-            float4 sampleColor = u_ScreenTexture.Sample(input.texCoord + offset);
-
-            float weight = exp(-float(x * x + y * y) / (2.0 * 8.0 * 8.0));
-            blurredColor += sampleColor * weight;
-            totalWeight  += weight;
-        }
-    }
-
-    blurredColor /= totalWeight;
-
-    float3 emissionColor = float3(1.0, 0.8, 0.6);
-    float3 glowColor     = emissionColor * glowMask * u_GlowIntensity * 2.0;
-    float3 auraColor     = blurredColor.rgb * glowMask * u_GlowIntensity * 0.8;
-    float3 finalColor    = centerColor.rgb + glowColor + auraColor;
-
-    return float4(finalColor, centerColor.a);
-}
diff --git a/Assets/Shaders/EquirectToCubemap.slang b/Assets/Shaders/EquirectToCubemap.slang
deleted file mode 100644
index 9b2ea4b..0000000
--- a/Assets/Shaders/EquirectToCubemap.slang
+++ /dev/null
@@ -1,33 +0,0 @@
-uniform float4x4 u_Projection;
-uniform float4x4 u_View;
-
-struct VSInput  { float3 position : POSITION; };
-struct VSOutput { float4 position : SV_Position; float3 worldPos : TEXCOORD0; };
-
-[shader("vertex")]
-VSOutput vertexMain(VSInput input)
-{
-    VSOutput output;
-    output.worldPos = input.position;
-    output.position = mul(u_Projection, mul(u_View, float4(input.position, 1.0)));
-    return output;
-}
-
-Sampler2D u_EquirectangularMap;
-static const float2 invAtan = float2(0.1591, 0.3183);
-
-float2 SampleSphericalMap(float3 v)
-{
-    float2 uv = float2(atan2(v.z, v.x), asin(v.y));
-    uv *= invAtan;
-    uv += 0.5;
-    return uv;
-}
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    float2 uv    = SampleSphericalMap(normalize(input.worldPos));
-    float3 color = u_EquirectangularMap.Sample(uv).rgb;
-    return float4(color, 1.0);
-}
diff --git a/Assets/Shaders/Geodesic.slang b/Assets/Shaders/Geodesic.slang
deleted file mode 100644
index 9490f21..0000000
--- a/Assets/Shaders/Geodesic.slang
+++ /dev/null
@@ -1,490 +0,0 @@
-struct VSInput  { float2 position : POSITION; float2 texCoord : TEXCOORD0; };
-struct VSOutput { float4 position : SV_Position; float2 texCoord : TEXCOORD0; };
-
-[shader("vertex")]
-VSOutput vertexMain(VSInput input)
-{
-    VSOutput output;
-    output.position = float4(input.position, 0.0, 1.0);
-    output.texCoord = input.texCoord;
-    return output;
-}
-
-struct Camera
-{
-    float3 camPos;     float _pad0;
-    float3 camRight;   float _pad1;
-    float3 camUp;      float _pad2;
-    float3 camForward; float _pad3;
-    float  tanHalfFov;
-    float  aspect;
-    bool   moving;
-    int    _pad4;
-};
-ConstantBuffer<Camera> cam;
-
-struct Disk
-{
-    float disk_r1;
-    float disk_r2;
-    float disk_num;
-    float thickness;
-    float disk_density;
-};
-ConstantBuffer<Disk> disk;
-
-struct Objects
-{
-    int    numObjects;
-    float4 objPosRadius[16];
-    float4 objColor[16];
-    float  mass[16];
-};
-ConstantBuffer<Objects> obj;
-
-struct Simulation
-{
-    int   maxStepsMoving;
-    int   maxStepsStatic;
-    float earlyExitDistance;
-    float time;
-};
-ConstantBuffer<Simulation> sim;
-
-SamplerCube u_HDRIEnvironment;
-
-static const float SagA_rs   = 1.269e10;
-static const float D_LAMBDA  = 1e7;
-static const float ESCAPE_R  = 1e30;
-
-static const int   DEFAULT_MAX_STEPS_MOVING    = 12000;
-static const int   DEFAULT_MAX_STEPS_STATIC    = 8000;
-static const float DEFAULT_EARLY_EXIT_DISTANCE = 2e12;
-
-static const float MIN_STEP_SIZE = 1e6;
-static const float MAX_STEP_SIZE = 5e7;
-
-struct Hit
-{
-    float4 objectColor;
-    float3 hitCenter;
-    float  hitRadius;
-};
-
-float3 SampleHDRI(float3 direction)
-{
-    return u_HDRIEnvironment.Sample(direction).rgb;
-}
-
-float hash(float p)
-{
-    p = frac(p * 0.1031);
-    p *= p + 33.33;
-    p *= p + p;
-    return frac(p);
-}
-
-float hash(float2 p)
-{
-    float3 p3 = frac(float3(p.xyx) * float3(0.1031, 0.1030, 0.0973));
-    p3 += dot(p3, p3.yzx + 33.33);
-    return frac((p3.x + p3.y) * p3.z);
-}
-
-float hash(float3 p)
-{
-    p = frac(p * float3(0.1031, 0.1030, 0.0973));
-    p += dot(p, p.yxz + 33.33);
-    return frac((p.x + p.y) * p.z);
-}
-
-float noise(float3 x)
-{
-    float3 i  = floor(x);
-    float3 fr = frac(x);
-
-    float3 u = fr * fr * (3.0 - 2.0 * fr);
-
-    float a = hash(i);
-    float b = hash(i + float3(1.0, 0.0, 0.0));
-    float c = hash(i + float3(0.0, 1.0, 0.0));
-    float d = hash(i + float3(1.0, 1.0, 0.0));
-    float e = hash(i + float3(0.0, 0.0, 1.0));
-    float f = hash(i + float3(1.0, 0.0, 1.0));
-    float g = hash(i + float3(0.0, 1.0, 1.0));
-    float h = hash(i + float3(1.0, 1.0, 1.0));
-
-    return lerp(lerp(lerp(a, b, u.x), lerp(c, d, u.x), u.y),
-                lerp(lerp(e, f, u.x), lerp(g, h, u.x), u.y), u.z);
-}
-
-float fbm(float3 x, int octaves)
-{
-    float v = 0.0;
-    float a = 0.5;
-    float f = 1.0;
-    float3 shift = float3(100, 200, 300);
-
-    for (int i = 0; i < octaves; ++i)
-    {
-        v += a * noise(x * f);
-        x = x * 2.0 + shift;
-        a *= 0.5;
-        f *= 2.0;
-    }
-    return v;
-}
-
-float GetCloudDensity(float3 pos)
-{
-    float r_cyl  = length(float2(pos.x, pos.z));
-    float r_norm = (r_cyl - disk.disk_r1) / (disk.disk_r2 - disk.disk_r1);
-
-    if (r_norm < 0.0 || r_norm > 1.0)
-        return 0.0;
-
-    float h_norm = abs(pos.y) / disk.thickness;
-    float vertical_falloff = exp(-h_norm * h_norm * 3.0);
-    float radial_density = 1.0 - r_norm * 0.5;
-
-    float keplerian_speed = 1.0 / sqrt(r_norm + 0.1);
-
-    float rotation_angle = sim.time * keplerian_speed * 0.5;
-    float3 rotated_pos = float3(
-        pos.x * cos(rotation_angle) - pos.z * sin(rotation_angle),
-        pos.y,
-        pos.x * sin(rotation_angle) + pos.z * cos(rotation_angle)
-    ) * 1e-10;
-
-    float large_turbulence = fbm(rotated_pos * 1.2, 5);
-    float medium_wisps     = fbm(rotated_pos * 2.5, 4);
-    float small_detail     = fbm(rotated_pos * 6.0, 3);
-    float fine_detail      = fbm(rotated_pos * 10.0, 2);
-
-    float noise_mask = large_turbulence * 0.4 +
-                       medium_wisps * 0.3 +
-                       small_detail * 0.2 +
-                       fine_detail * 0.1;
-
-    noise_mask = smoothstep(0.25, 0.75, noise_mask);
-
-    float angle = atan2(pos.z, pos.x);
-    float rotated_angle = angle + sim.time * 0.5;
-
-    float spiral_arms = sin(rotated_angle * 3.0 + r_norm * 15.0) * 0.15 + 0.85;
-
-    float orbital_angle = angle + sim.time * keplerian_speed * 0.8;
-    float orbital_pattern = sin(orbital_angle * 2.0 + r_norm * 8.0) * 0.2 + 0.8;
-
-    float density = vertical_falloff * radial_density * noise_mask * spiral_arms * orbital_pattern;
-    return density * disk.disk_density;
-}
-
-struct Ray
-{
-    float x, y, z;
-    float r, theta, phi;
-    float dr, dtheta, dphi;
-    float E, L;
-};
-
-Ray InitRay(float3 pos, float3 dir)
-{
-    Ray ray;
-    ray.x     = pos.x;
-    ray.y     = pos.y;
-    ray.z     = pos.z;
-    ray.r     = length(pos);
-    ray.theta = acos(pos.z / ray.r);
-    ray.phi   = atan2(pos.y, pos.x);
-
-    float dx = dir.x;
-    float dy = dir.y;
-    float dz = dir.z;
-
-    ray.dr     = sin(ray.theta)*cos(ray.phi)*dx +
-                 sin(ray.theta)*sin(ray.phi)*dy +
-                 cos(ray.theta)*dz;
-
-    ray.dtheta = (cos(ray.theta)*cos(ray.phi)*dx +
-                  cos(ray.theta)*sin(ray.phi)*dy -
-                  sin(ray.theta)*dz) / ray.r;
-
-    ray.dphi   = (-sin(ray.phi)*dx + cos(ray.phi)*dy) /
-                 (ray.r * sin(ray.theta));
-
-    ray.L = ray.r * ray.r * sin(ray.theta) * ray.dphi;
-    float f = 1.0 - SagA_rs / ray.r;
-    float dt_dL = sqrt((ray.dr*ray.dr)/f +
-                       ray.r*ray.r*(ray.dtheta*ray.dtheta +
-                       sin(ray.theta)*sin(ray.theta)*
-                       ray.dphi*ray.dphi));
-    ray.E = f * dt_dL;
-
-    return ray;
-}
-
-bool Intercept(Ray ray, float rs)
-{
-    return ray.r <= rs;
-}
-
-bool InterceptObject(Ray ray, inout Hit hit)
-{
-    float3 P = float3(ray.x, ray.y, ray.z);
-
-    for (int i = 0; i < obj.numObjects; ++i)
-    {
-        float3 center = obj.objPosRadius[i].xyz;
-        float  radius = obj.objPosRadius[i].w;
-
-        float distSq = dot(P - center, P - center);
-        if (distSq > radius * radius * 4.0)
-            continue;
-
-        if (distSq <= radius * radius)
-        {
-            hit.objectColor = obj.objColor[i];
-            hit.hitCenter   = center;
-            hit.hitRadius   = radius;
-            return true;
-        }
-    }
-
-    return false;
-}
-
-void GeodesicRHS(Ray ray, out float3 d1, out float3 d2)
-{
-    float r      = ray.r;
-    float theta  = ray.theta;
-    float dr     = ray.dr;
-    float dtheta = ray.dtheta;
-    float dphi   = ray.dphi;
-    float f      = 1.0 - SagA_rs / r;
-    float dt_dL  = ray.E / f;
-
-    d1 = float3(dr, dtheta, dphi);
-    d2.x = - (SagA_rs / (2.0 * r*r)) * f * dt_dL * dt_dL
-           + (SagA_rs / (2.0 * r*r * f)) * dr * dr
-           + r * (dtheta*dtheta + sin(theta)*sin(theta)*dphi*dphi);
-    d2.y = -2.0*dr*dtheta/r + sin(theta)*cos(theta)*dphi*dphi;
-    d2.z = -2.0*dr*dphi/r - 2.0*cos(theta)/(sin(theta)) * dtheta * dphi;
-}
-
-void RK4Step(inout Ray ray, float dL)
-{
-    float3 k1a, k1b;
-    GeodesicRHS(ray, k1a, k1b);
-
-    ray.r      += dL * k1a.x;
-    ray.theta  += dL * k1a.y;
-    ray.phi    += dL * k1a.z;
-    ray.dr     += dL * k1b.x;
-    ray.dtheta += dL * k1b.y;
-    ray.dphi   += dL * k1b.z;
-
-    ray.x = ray.r * sin(ray.theta) * cos(ray.phi);
-    ray.y = ray.r * sin(ray.theta) * sin(ray.phi);
-    ray.z = ray.r * cos(ray.theta);
-}
-
-bool IsInDiskVolume(float3 pos)
-{
-    float r_cyl = length(float2(pos.x, pos.z));
-    return (r_cyl >= disk.disk_r1 && r_cyl <= disk.disk_r2 && abs(pos.y) <= disk.thickness);
-}
-
-float4 SampleDiskColor(float3 pos)
-{
-    float r_cyl  = length(float2(pos.x, pos.z));
-    float r_norm = (r_cyl - disk.disk_r1) / (disk.disk_r2 - disk.disk_r1);
-
-    float3 innerColor = float3(1.0, 0.9, 0.5);
-    float3 midColor   = float3(1.0, 0.6, 0.2);
-    float3 outerColor = float3(0.9, 0.3, 0.1);
-
-    float3 baseColor;
-    if (r_norm < 0.5)
-        baseColor = lerp(innerColor, midColor, r_norm * 2.0);
-    else
-        baseColor = lerp(midColor, outerColor, (r_norm - 0.5) * 2.0);
-
-    float r_norm_rot = (r_cyl - disk.disk_r1) / (disk.disk_r2 - disk.disk_r1);
-    float keplerian_speed = 1.0 / sqrt(r_norm_rot + 0.1);
-
-    float color_rotation_angle = sim.time * keplerian_speed * 0.3;
-    float3 rotated_color_pos = float3(
-        pos.x * cos(color_rotation_angle) - pos.z * sin(color_rotation_angle),
-        pos.y,
-        pos.x * sin(color_rotation_angle) + pos.z * cos(color_rotation_angle)
-    ) * 1e-10;
-
-    float large_color  = fbm(rotated_color_pos * 1.8, 4);
-    float medium_color = fbm(rotated_color_pos * 4.0, 3);
-    float small_color  = fbm(rotated_color_pos * 8.0, 2);
-    float colorVariation = (large_color * 0.5 + medium_color * 0.3 + small_color * 0.2) * 0.6;
-    baseColor = baseColor * (1.0 + colorVariation);
-
-    float density = GetCloudDensity(pos);
-
-    float brightness_rotation_angle = sim.time * keplerian_speed * 0.7;
-    float3 rotated_brightness_pos = float3(
-        pos.x * cos(brightness_rotation_angle) - pos.z * sin(brightness_rotation_angle),
-        pos.y,
-        pos.x * sin(brightness_rotation_angle) + pos.z * cos(brightness_rotation_angle)
-    ) * 1e-10;
-
-    float brightness_large  = fbm(rotated_brightness_pos * 3.0, 3);
-    float brightness_medium = fbm(rotated_brightness_pos * 5.0, 2);
-    float brightness_small  = fbm(rotated_brightness_pos * 7.0, 2);
-    float brightness_noise  = (brightness_large * 0.6 + brightness_medium * 0.3 + brightness_small * 0.1);
-
-    float baseBrightness = 1.0 + density * 1.5;
-    float glowBrightness = brightness_noise * 0.8;
-    float brightness = baseBrightness + glowBrightness;
-
-    return float4(baseColor * brightness, density);
-}
-
-float CalculateAdaptiveStepSize(Ray ray, float baseStepSize)
-{
-    float r_factor         = clamp(ray.r / (SagA_rs * 10.0), 0.1, 1.0);
-    float curvature        = length(float3(ray.dr, ray.dtheta * ray.r, ray.dphi * ray.r * sin(ray.theta)));
-    float curvature_factor = clamp(1e12 / (curvature + 1e6), 0.1, 2.0);
-
-    return clamp(baseStepSize * r_factor * curvature_factor, MIN_STEP_SIZE, MAX_STEP_SIZE);
-}
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    float u = (2.0 * input.texCoord.x - 1.0) * cam.aspect * cam.tanHalfFov;
-    float v = (1.0 - 2.0 * input.texCoord.y) * cam.tanHalfFov;
-    float3 dir = normalize(u * cam.camRight - v * cam.camUp + cam.camForward);
-    Ray ray = InitRay(cam.camPos, dir);
-
-    float4 color = float4(0.0, 0.0, 0.0, 0.0);
-
-    bool hitBlackHole = false;
-    bool hitObject    = false;
-
-    Hit hit;
-    hit.objectColor = float4(0.0, 0.0, 0.0, 0.0);
-    hit.hitCenter   = float3(0.0, 0.0, 0.0);
-    hit.hitRadius   = 0.0;
-
-    float4 accumulatedColor = float4(0.0, 0.0, 0.0, 0.0);
-    float  transmittance = 1.0;
-
-    int maxSteps = cam.moving ? sim.maxStepsMoving : sim.maxStepsStatic;
-
-    if (maxSteps <= 0)
-        maxSteps = cam.moving ? DEFAULT_MAX_STEPS_MOVING : DEFAULT_MAX_STEPS_STATIC;
-
-    float cameraDistance = length(cam.camPos);
-    if (cameraDistance > 2e12)
-        maxSteps = maxSteps / 2;
-    else if (cameraDistance > 1e12)
-        maxSteps = int(maxSteps * 0.75);
-
-    float initialEscapeVelocity = sqrt(2.0 * SagA_rs / ray.r);
-    if (ray.dr > initialEscapeVelocity * 0.95 &&
-        ray.r  > SagA_rs * 200.0)
-        maxSteps = maxSteps / 2;
-
-    float lambda = 0.0;
-    int objectCheckInterval = 5;
-
-    for (int i = 0; i < maxSteps; ++i)
-    {
-        float exitDistance = sim.earlyExitDistance > 0.0 ? sim.earlyExitDistance : DEFAULT_EARLY_EXIT_DISTANCE;
-        if (ray.r > exitDistance)
-            break;
-        if (ray.r > ESCAPE_R)
-            break;
-
-        if (Intercept(ray, SagA_rs))
-        {
-            hitBlackHole = true;
-            break;
-        }
-
-        float currentStepSize = CalculateAdaptiveStepSize(ray, D_LAMBDA);
-
-        RK4Step(ray, currentStepSize);
-        lambda += currentStepSize;
-
-        float3 newPos = float3(ray.x, ray.y, ray.z);
-
-        if (IsInDiskVolume(newPos))
-        {
-            float4 diskSample = SampleDiskColor(newPos);
-            float  density    = diskSample.a;
-            float3 diskColor  = diskSample.rgb;
-
-            float stepLength = currentStepSize * 1e-8;
-
-            float absorption = density * stepLength * 0.8;
-            float scattering = density * stepLength * 1.5;
-            float extinction = absorption + scattering;
-
-            float stepTransmittance = exp(-extinction);
-
-            float3 emission = diskColor * density * stepLength * 4.0 * sqrt(disk.disk_density);
-
-            float3 glowColor       = lerp(diskColor, float3(1.0, 0.8, 0.6), 0.3);
-            float  glowIntensity   = density * stepLength * 2.0;
-            float3 atmosphericGlow = glowColor * glowIntensity * 0.8;
-
-            float3 totalEmission = emission + atmosphericGlow;
-            accumulatedColor.rgb += totalEmission * transmittance;
-
-            transmittance *= stepTransmittance;
-
-            if (transmittance < 0.01)
-            {
-                accumulatedColor.a = 1.0 - transmittance;
-                break;
-            }
-        }
-
-        if (i % objectCheckInterval == 0 && InterceptObject(ray, hit))
-        {
-            hitObject = true;
-            break;
-        }
-
-        if (ray.dr > 0.0 && ray.r > SagA_rs * 100.0 && lambda > 2e8)
-            break;
-    }
-
-    accumulatedColor.a = 1.0 - transmittance;
-
-    if (hitBlackHole)
-    {
-        color = float4(0.0, 0.0, 0.0, 1.0);
-    }
-    else if (hitObject)
-    {
-        float3 P = float3(ray.x, ray.y, ray.z);
-        float3 N = normalize(P - hit.hitCenter);
-        float3 V = normalize(cam.camPos - P);
-
-        float ambient   = 0.1;
-        float diff      = max(dot(N, V), 0.0);
-        float intensity = ambient + (1.0 - ambient) * diff;
-        float3 shaded   = hit.objectColor.rgb * intensity;
-
-        color = float4(shaded, hit.objectColor.a);
-        color = lerp(accumulatedColor, color, color.a);
-    }
-    else
-    {
-        float3 rayDirection = normalize(float3(ray.x, ray.y, ray.z) - cam.camPos);
-        float3 hdriColor = SampleHDRI(rayDirection);
-        color = float4(lerp(accumulatedColor.rgb, hdriColor, 1.0 - accumulatedColor.a), 1.0);
-    }
-
-    return color;
-}
diff --git a/Assets/Shaders/Grid.slang b/Assets/Shaders/Grid.slang
deleted file mode 100644
index ea7d263..0000000
--- a/Assets/Shaders/Grid.slang
+++ /dev/null
@@ -1,34 +0,0 @@
-uniform float4x4 u_ViewProjection;
-uniform float4x4 u_Transform;
-uniform float    u_GridSize;
-
-struct VSInput  { float3 position : POSITION; };
-struct VSOutput { float4 position : SV_Position; };
-
-[shader("vertex")]
-VSOutput vertexMain(VSInput input)
-{
-    VSOutput output;
-    float3 scaledPosition = input.position * (u_GridSize / 50.0);
-    output.position = mul(u_ViewProjection, mul(u_Transform, float4(scaledPosition, 1.0)));
-    return output;
-}
-
-uniform float3 u_GridColor;
-uniform float  u_GridAlpha;
-uniform float3 u_CameraPos;
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    float dist       = length(u_CameraPos);
-    float fadeFactor = 1.0 - clamp(dist / 100.0, 0.0, 0.8);
-
-    float3 color = u_GridColor;
-    float  alpha = u_GridAlpha * fadeFactor;
-
-    float gridFade = 1.0 - clamp(dist / 50.0, 0.0, 0.9);
-    alpha *= gridFade;
-
-    return float4(color, alpha);
-}
diff --git a/Assets/Shaders/Skybox.slang b/Assets/Shaders/Skybox.slang
deleted file mode 100644
index 6ba81bc..0000000
--- a/Assets/Shaders/Skybox.slang
+++ /dev/null
@@ -1,23 +0,0 @@
-uniform float4x4 u_Projection;
-uniform float4x4 u_View;
-
-struct VSInput  { float3 position : POSITION; };
-struct VSOutput { float4 position : SV_Position; float3 texCoords : TEXCOORD0; };
-
-[shader("vertex")]
-VSOutput vertexMain(VSInput input)
-{
-    VSOutput output;
-    output.texCoords = input.position;
-    float4 pos = mul(u_Projection, mul(u_View, float4(input.position, 1.0)));
-    output.position = pos.xyww;   // force depth = 1 so the skybox stays behind everything
-    return output;
-}
-
-SamplerCube u_Skybox;
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    return u_Skybox.Sample(input.texCoords);
-}
diff --git a/Assets/Shaders/Sphere.slang b/Assets/Shaders/Sphere.slang
deleted file mode 100644
index 0871438..0000000
--- a/Assets/Shaders/Sphere.slang
+++ /dev/null
@@ -1,67 +0,0 @@
-uniform float4x4 u_ViewProjection;
-uniform float4x4 u_Transform;
-
-struct VSInput
-{
-    float3 position : POSITION;
-    float3 normal   : NORMAL;
-};
-
-struct VSOutput
-{
-    float4 position : SV_Position;
-    float3 normal   : TEXCOORD0;
-    float3 worldPos : TEXCOORD1;
-};
-
-[shader("vertex")]
-VSOutput vertexMain(VSInput input)
-{
-    VSOutput output;
-    output.worldPos = mul(u_Transform, float4(input.position, 1.0)).xyz;
-    float3x3 normalMatrix = (float3x3)u_Transform;
-    output.normal   = mul(normalMatrix, input.normal);
-    output.position = mul(u_ViewProjection, float4(output.worldPos, 1.0));
-    return output;
-}
-
-uniform float3 u_Color;
-uniform float  u_Specular;
-uniform float  u_Emission;
-uniform float3 u_LightPos;
-uniform float3 u_CameraPos;
-uniform int    u_IsSelected;
-uniform float3 u_OutlineColor;
-uniform float  u_OutlineWidth;
-SamplerCube    u_HDRIEnvironment;
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    float3 normal     = normalize(input.normal);
-    float3 lightDir   = normalize(u_LightPos - input.worldPos);
-    float3 viewDir    = normalize(u_CameraPos - input.worldPos);
-    float3 reflectDir = reflect(-lightDir, normal);
-
-    float3 hdriLight     = u_HDRIEnvironment.Sample(normal).rgb;
-    float  hdriIntensity = 0.3;
-
-    float diff = max(dot(normal, lightDir), 0.0);
-    float spec = pow(max(dot(viewDir, reflectDir), 0.0), 32.0);
-
-    float3 diffuse  = u_Color * (diff + hdriIntensity * hdriLight);
-    float3 specular = float3(u_Specular, u_Specular, u_Specular) * spec;
-    float3 emission = u_Color * u_Emission;
-
-    float3 result = diffuse + specular + emission;
-
-    if (u_IsSelected > 0)
-    {
-        float ndotv       = max(dot(normal, viewDir), 0.0);
-        float rim         = 1.0 - ndotv;
-        float outlineMask = step(1.0 - u_OutlineWidth, rim);
-        result = lerp(result, u_OutlineColor, outlineMask);
-    }
-
-    return float4(result, 1.0);
-}
diff --git a/Assets/Shaders/TexturedQuad.slang b/Assets/Shaders/TexturedQuad.slang
deleted file mode 100644
index 52d46ed..0000000
--- a/Assets/Shaders/TexturedQuad.slang
+++ /dev/null
@@ -1,28 +0,0 @@
-struct VSInput
-{
-    float2 position : POSITION;
-    float2 texCoord : TEXCOORD0;
-};
-
-struct VSOutput
-{
-    float4 position : SV_Position;
-    float2 texCoord : TEXCOORD0;
-};
-
-[shader("vertex")]
-VSOutput vertexMain(VSInput input)
-{
-    VSOutput output;
-    output.position = float4(input.position, 0.0, 1.0);
-    output.texCoord = input.texCoord;
-    return output;
-}
-
-Sampler2D u_ScreenTexture;
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    return u_ScreenTexture.Sample(input.texCoord);
-}
diff --git a/Assets/Shaders/VkPipelineTest.slang b/Assets/Shaders/VkPipelineTest.slang
deleted file mode 100644
index f4d1897..0000000
--- a/Assets/Shaders/VkPipelineTest.slang
+++ /dev/null
@@ -1,25 +0,0 @@
-// Minimal shader used only to verify the Vulkan graphics-pipeline path (SPIR-V
-// module -> pipeline -> draw -> read-back). Draws a full-screen gradient
-// triangle from the vertex id, so it needs no vertex buffer, UBO, or sampler.
-
-struct VSOutput
-{
-    float4 position : SV_Position;
-    float3 color    : COLOR0;
-};
-
-[shader("vertex")]
-VSOutput vertexMain(uint vid : SV_VertexID)
-{
-    float2 p = float2(float((vid << 1) & 2), float(vid & 2));
-    VSOutput output;
-    output.position = float4(p * 2.0 - 1.0, 0.0, 1.0);
-    output.color    = float3(p, 0.5);
-    return output;
-}
-
-[shader("fragment")]
-float4 fragmentMain(VSOutput input) : SV_Target
-{
-    return float4(input.color, 1.0);
-}