Tonemaps
2 days ago
- #shaders
- #HDR
- #tonemapping
- Shaders typically use 8-bit 'unorm' color values ranging from 0.0 to 1.0.
- 6-bit color demonstration shows limitations in blending and color accuracy.
- Sun shader example illustrates overexposure issues with clamped color values.
- Tonemapping techniques (ACES, Hable, Unreal, Tanh) help maintain color accuracy.
- HDR rendering allows colors beyond the 0 to 1 range for better lighting effects.
- HDR surfaces (surface_rgba16float) are useful for multi-pass effects like bloom.
- Tonemapping and HDR surfaces solve overexposure and washed-out color issues.
- Additional resources include Photoshop blendmodes and 2D global illumination.