More MC render chromatic aberation issue

[degriz]

Mandelbulber settings file

version 2.23

only modified parameters

[main_parameters] ambient_occlusion_mode 1; camera 1.54056719126964 -3.08113438253928 1.02704479417976; camera_rotation 26.5650511770779 -16.6015495990203 0; camera_top -0.127775312999988 0.255550625999976 0.95831484749991; constant_DE_threshold true; DE_factor 0.125; DE_thresh 0.00622797720113097; DOF_blur_opacity 1; DOF_enabled true; DOF_focus 6.71161651611328; DOF_max_radius 1000; DOF_MC_CA_camera_dispersion 4; DOF_MC_CA_dispersion_gain 4; DOF_MC_CA_enable true; DOF_MC_global_illumination true; DOF_monte_carlo true; DOF_number_of_passes 2; DOF_radius 1; DOF_samples 800; file_background X:\HDRI\modern_buildings_night_8k.hdr; file_envmap X:\envmap.jpg; file_lightmap X:\lightmap.jpg; flight_last_to_render 99999; formula_1 1112; formula_2 101; formula_3 174; formula_material_id 4; formula_stop_iteration_2 1; formula_stop_iteration_3 256; fov 26.57; frames_per_keyframe 240; hybrid_fractal_enable true; image_height 720; image_proportion 4; image_width 1280; keyframe_last_to_render 0; mat1_is_defined true; mat4_diffuse_gradient 0 d6d6d6 1000 e3e3e3 2000 f1f1f1 3000 e1e1e1 4000 cecece 5000 ededed 6000 bbbbbb 7000 dedede 8000 e2e2e2 9000 bbbbbb; mat4_diffuse_gradient_enable true; mat4_is_defined true; mat4_metallic false; mat4_name multiwhite; mat4_specular 0.25; mat4_specular_color e600 ff00 e500; mat4_specular_width 0.5; mat4_surface_color de00 ec00 e100; mat4_surface_color_gradient 0 d7e0cc 1000 dcebe2 2000 f1ffe4 3000 d3f5dd 4000 bae1cf 5000 eff9df 6000 98cfcb 7000 d3eeda 8000 d4ffd4 9000 bacfa9; MC_soft_shadows_enable true; raytraced_reflections true; reflections_max 1; target -1.45943280873036 2.91886561746072 -0.97295520582024; textured_background true; [fractal_1] analyticDE_enabled_false true; transf_benesi_T1_enabled_false true; transf_function_enabledAz_false true; transf_function_enabledF_false true; transf_function_enabledP_false true; transf_function_enabledx_false true; transf_rotation 0 34.97914 0; transf_rotation_enabled true; transf_scale3D_000 0 1.100149 0; [fractal_2] analyticDE_offset_1 4; transf_addition_constant_111 0.521795 0.521195 2.118361; transf_benesi_T1_enabled_false true; transf_constant_multiplierA_111 2.333458 1.282331 2.06538; transf_function_enabledAy_false true; transf_function_enabledAz_false true; transf_function_enabledF_false true; transf_function_enabledP_false true; transf_function_enabledx_false true; transf_rotation 0 34.97914 0; transf_scale3D_000 0.012544 0 0; transf_scale3D_111 1.198119 1.165467 3.75405; transf_scale_3 8.234197; transf_scaleB_1 1.925307; transf_stop_iterations_P1 3; [fractal_3] analyticDE_enabled_false true; analyticDE_offset_1 4; transf_function_enabledAy_false true; transf_function_enabledAz_false true; transf_scaleA_1 8; [keyframes] frame;main_camera_x;main_camera_y;main_camera_z;main_target_x;main_target_y;main_target_z;main_camera_top_x;main_camera_top_y;main_camera_top_z;fractal1_transf_rotation_x;fractal1_transf_rotation_y;fractal1_transf_rotation_z;fractal1_transf_scale3D_000_x;fractal1_transf_scale3D_000_y;fractal1_transf_scale3D_000_z;fractal1_transf_scale_1;fractal1_analyticDE_scale_1;fractal1_analyticDE_offset_0;fractal0_transf_rotation_x;fractal0_transf_rotation_y;fractal0_transf_rotation_z;fractal0_transf_scale3D_000_x;fractal0_transf_scale3D_000_y;fractal0_transf_scale3D_000_z;fractal0_transf_scale_1;fractal0_analyticDE_offset_0;fractal0_analyticDE_scale_1;fractal0_transf_offset_111_x;fractal0_transf_offset_111_y;fractal0_transf_offset_111_z;fractal1_transf_addition_constant_111_x;fractal1_transf_addition_constant_111_y;fractal1_transf_addition_constant_111_z;fractal1_transf_constant_multiplierA_111_x;fractal1_transf_constant_multiplierA_111_y;fractal1_transf_constant_multiplierA_111_z;fractal1_transf_scale3D_111_x;fractal1_transf_scale3D_111_y;fractal1_transf_scale3D_111_z;fractal1_transf_scale_3;fractal1_transf_addition_constant_0777_x;fractal1_transf_addition_constant_0777_y;fractal1_transf_addition_constant_0777_z;fractal1_transf_offset_200_x;fractal1_transf_offset_200_y;fractal1_transf_offset_200_z;fractal1_transf_scaleB_1;main_fov 0;1.54056719126964;-3.08113438253928;1.02704479417976;-1.45943280873036;2.91886561746072;-0.97295520582024;-0.127775312999988;0.255550625999976;0.95831484749991;0;34.97914;0;0.012544;0;0;1;1;0;0;34.97914;0;0;1.100149;0;1;0;1;1;1;1;0.521795;0.521195;2.118361;2.333458;1.282331;2.06538;1.198119;1.165467;3.75405;8.234197;0.7;0.7;0.7;2;0;0;1.925307;26.57 interpolation;morphAkima;morphAkima;morphAkima;morphAkimaAngle;morphAkima;morphAkima;morphAkima;morphAkima;morphAkimaAngle;morphAkima;morphAkima;morphAkima;morphAkima;morphAkima;morphAkima;morphAkimaAngle;morphAkima;morphAkima;morphAkima;morphAkima;morphAkima;morphAkima

[degriz]

Note bottom corners

[buddhi1980]

It is not a bug but side effect of MC optimization. To reduce this effect you should increase minimum number of MC samples to ensure that everywhere will be calculated enough big number of samples.