/**
 * Parses custom WGSL shader source to extract @property and @texture metadata.
 *
 * Expected comment format:
 *   /// @property name: type = (default values)
 *   /// @texture name
 *
 * Supported property types: float, vec2, vec3, vec4
 * Max 8 @texture declarations per shader.
 */
export interface CustomPropertyDef {
    name: string;
    type: 'float' | 'vec2' | 'vec3' | 'vec4';
    default: number[];
    byteOffset: number;
    floatCount: number;
}
export interface CustomTextureDef {
    name: string;
    bindingIndex: number;
    samplerBindingIndex: number;
}
export interface CustomShaderDescriptor {
    properties: CustomPropertyDef[];
    textures: CustomTextureDef[];
    uniformBufferSize: number;
    fragmentSource: string;
    /** Vertex displacement code (lines between /// @vertex and @fragment fn). Null if no vertex section. */
    vertexSource: string | null;
    /** If true, shader is opaque: depth write enabled, backface culling, drawn with opaque objects. */
    opaque: boolean;
}
export declare const MAX_CUSTOM_TEXTURES = 8;
export declare function parseCustomShader(wgslSource: string): CustomShaderDescriptor;
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