import { mat4 } from "gl-matrix";
/**
 * Renderer which exposes certain methods to set WebGL state and update matrices.
 */
export interface RendererWithExposedMethods {
    /**
     * Updates MVP matrix.
     *
     * @param tx Translation x component.
     * @param ty Translation y component.
     * @param tz Translation z component.
     * @param rx Rotation x component.
     * @param ry Rotation y component.
     * @param rz Rotation z component.
     * @param sx Scale x component.
     * @param sy Scale y component.
     * @param sz Scale z component.
     */
    calculateMVPMatrix(tx: number, ty: number, tz: number, rx: number, ry: number, rz: number, sx: number, sy: number, sz: number): void;
    /**
     * Binds OpenGL texture to texture unit.
     *
     * @param textureUnit Texture unit id.
     * @param textureID   Texture id.
     * @param uniformID   Shader uniform.
     */
    setTexture2D(textureUnit: number, texture: WebGLTexture, uniform: WebGLUniformLocation): void;
    /**
     * Get MVP matrix.
     *
     * @return MVP matrix.
     */
    getMVPMatrix(): mat4;
    /**
     * Returns orthographic matrix to render to off-screen targets.
     *
     * @return Orthographic matrix.
     */
    getOrthoMatrix(): mat4;
    /**
     * Checks for OpenGL ES errors.
     *
     * @param op Message to log.
     */
    checkGlError(operation: string): void;
    /**
     * Unbinds all currently bound OpenGL ES buffers.
     */
    unbindBuffers(): void;
    /**
     * Get model matrix.
     *
     * @return Model matrix.
     */
    getModelMatrix(): mat4;
    /**
     * Get view matrix.
     *
     * @return View matrix.
     */
    getViewMatrix(): mat4;
    /**
     * Get projection matrix.
     *
     * @return Projection matrix.
     */
    getProjectionMatrix(): mat4;
    /** Getter for current WebGL context. */
    gl: WebGLRenderingContext | WebGL2RenderingContext;
}