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DX12 Renderer

Demos

Deferred

  • DeferredLightingDemo
    • Deferred rendering pipeline:
      • Directional, Point, Spot, and Capsule lights;
      • Light passes are implemented using the stencil buffer;
    • PBR:
      • Cook-Torrance BRDF model;
      • Image-Based Lighting:
        • Diffuse (Irradiance Map) and Specular (Pre-Filtered Environment Map);
        • Both maps are computed on application start based on an HDR skybox cubemap;
    • HDR pipeline:
      • Render targets supporting HDR (R16G16B16A16_FLOAT);
      • Auto exposure via a Luminance Histogram implemented in Compute shaders;
      • Tone mapping;
    • TAA;
    • SSAO;
    • SSLR.

Deferred Lighting Demo Screenshot

SSAO Off SSAO On
SSAO Off SSAO On
SSLR Off SSLR On
SSLR Off SSLR On

Controls

  • Use WASD/Arrow Keys to move the camera;
  • Hold LMB and move the mouse to orient the camera;
  • Press L to toggle light animation;
  • Press T to toggle TAA;
  • Press O to toggle SSAO;
  • Press P to toggle SSLR.
  • Press B to toggle Bloom.

Forward

  • LightingDemo
    • Models loaded from OBJ files;
    • .DDS textures loading:
      • Textures for this demo are stored in BC7_UNORM.
    • Mipmapping;
    • Phong lighting with a directional light and several point and spot lights;
      • Using diffuse, normal, gloss, and specular maps;
    • Particle system with CPU simulation (10000+ particles on screen) and instanced rendering;
    • Shadow mapping for the directional, point, and spot lights;
    • MSAA:
      • Built-in resolve for color;
      • Custom compute pass for the depth attachment (min among all samples);
    • Soft shadows using 16x Poisson Sampling and Early Bail;
    • Dynamic environment reflections - see the sphere;
    • Post-processing:
      • Screen-space fog;
      • Bloom.

Lighting Demo Screenshot

Lighting Demo Screenshot 2

Controls

  • Use WASD/Arrow Keys to move the camera;
  • Hold LMB and move the mouse to orient the camera;
  • Press L to toggle light animation.

ToonDemo

  • ToonDemo
    • Toon/Cel-Shading:
      • Diffuse ramp texture;
      • Configurable specular;
      • Cross-hatching pattern;
    • Variance Shadow Mapping (Directional Light);
    • Post-processing:
      • Outline (Sobel-filter);
      • FXAA;
      • Bloom.

Toon Demo Screenshot

Controls

  • Use WASD/Arrow Keys to move the camera;
  • Hold LMB and move the mouse to orient the camera;
  • Press L to toggle light animation.

MeshletsDemo

  • MeshletsDemo
    • Meshlets are built via meshoptimizer.
    • GPU Meshlet Culling:
      • Cone backface culling;
      • Frustum culling (bounding spheres);
      • HDB (Hi-Z) occlusion culling (bounding spheres or AABBs):
        • Additional low poly geometry is treated as occluders (red transparent in the screenshot);
    • Culled meshlets are rendered via ExecuteIndirect;
    • Uses Render Graph.

Meshlets Demo Screenshot

Controls

  • Use WASD/Arrow Keys to move the camera;
  • Hold LMB and move the mouse to orient the camera;
  • Press C to "freeze" the camera for cone and frustum culling;
  • Press M and N to scroll the debugged meshlets forwards and backwards respectively.

RenderGraph

  • RenderGraph
    • A simple implementation of a render graph:
      • Passes are defined via lambdas;
      • Resources are marked as either inputs or outputs;
      • GPU memory is aliased between different buffers and render targets when their lifetimes do not overlap;
      • Special "Token" resources are used for more controlled render pass ordering.

GrassDemo

  • GrassDemo
    • ~45k individual grass blades sent to rendering after culling, 4kk total.
    • Grass animation in the vertex shader;
    • Per-chunk frustum culling (CPU);
      • Chunks consist of 500x500 instances;
    • Per-instance frustum culling (GPU, compute);
    • Grass instances rendered via ExecuteIndirect;
    • TAA.

Grass Demo Screenshot

Controls

  • Use WASD/Arrow Keys to move the camera;
  • Hold LMB and move the mouse to orient the camera;
  • Press T to toggle TAA.
  • Press C to toggle GPU culling.

Animations

  • AnimationsDemo
    • Model and animations loaded from FBX files;
    • Skinning in the vertex shader;
    • Animation state blending;
    • Animation state merging (i.e., avatar masks).

Animations Demo GIF

Controls

  • Use WASD/Arrow Keys to move the camera;
  • Hold LMB and move the mouse to orient the camera.

Requirements

Packages (installed via vcpkg):

Sources

Libraries and Tools

Assets