`simvx.graphics.renderer.color_grading`¶

Color grading pass — LUT-based color correction via compute shader.

Module Contents¶

Compute-based color grading: LUT lookup + brightness/contrast/saturation/temperature.

`generate_neutral_lut`	Generate an identity 3D LUT (no color change).
`generate_warm_lut`	Generate a warm-toned 3D LUT (shifted toward orange/amber).
`generate_cool_lut`	Generate a cool-toned 3D LUT (shifted toward blue/teal).
`generate_vintage_lut`	Generate a vintage/desaturated warm 3D LUT.

`__all__`
`log`

simvx.graphics.renderer.color_grading.generate_neutral_lut(size: int = 32) → numpy.ndarray¶: Generate an identity 3D LUT (no color change).

simvx.graphics.renderer.color_grading.generate_warm_lut(size: int = 32) → numpy.ndarray¶: Generate a warm-toned 3D LUT (shifted toward orange/amber).

simvx.graphics.renderer.color_grading.generate_cool_lut(size: int = 32) → numpy.ndarray¶: Generate a cool-toned 3D LUT (shifted toward blue/teal).

simvx.graphics.renderer.color_grading.generate_vintage_lut(size: int = 32) → numpy.ndarray¶: Generate a vintage/desaturated warm 3D LUT.

class simvx.graphics.renderer.color_grading.ColorGradingPass(engine: Any)¶

Compute-based color grading: LUT lookup + brightness/contrast/saturation/temperature.

Operates in-place on the HDR color image. Apply after fog, before tone mapping.

Initialization

setup(width: int, height: int, color_view: Any) → None¶: Initialize color grading pipeline and upload default neutral LUT.

set_lut(lut_data: numpy.ndarray) → None¶: Upload a new 3D LUT texture. Shape should be (size, size, size, 4) uint8.

render(cmd: Any) → None¶

Dispatch color grading compute shader. Call after fog, before tonemap.

Args: cmd: Active command buffer (outside any render pass).

resize(width: int, height: int, color_view: Any) → None¶: Update descriptors for new dimensions.