Here’s a KaleidoscopicIFS render done with openCL using the Monte Carlo Global illumination feature. I tried to keep a low DOF (depth of field) and use of simple materials in order to keep all clean and fast to render.
It took around 35 mins to render at 2K and nearly 3 hours at 4K resolution.
#Uncheck MC DOF in order to have fast previews
# Mandelbulber settings file
# version 2.15
# only modified parameters
[main_parameters]
ambient_occlusion_enabled true;
ambient_occlusion_mode 0;
basic_fog_color 9500 da00 ff00;
basic_fog_visibility 34,64230728149414;
camera -10,07948807139239 7,571793595179874 1,548455577435824;
camera_distance_to_target 6,770585989952087;
camera_rotation -129,0451602443074 -7,223314939833332 -6,106664988409952e-13;
camera_top 0,09765355346404889 -0,07920581295561839 0,9920636182674395;
DE_factor 0,8;
detail_level 1,111111111111111;
DOF_blur_opacity 2;
DOF_enabled true;
DOF_focus 9,252423286437988;
DOF_number_of_passes 2;
DOF_radius 7;
file_lightmap /usr/share/mandelbulber2/textures/lightmap2.jpg;
flight_last_to_render 0;
fog_color_1 3300 6a00 7500;
fog_color_2 6c00 9b00 ac00;
fog_color_3 fb00 ff00 e100;
formula_1 10;
fov 0,7;
glow_color_1 4f00 5600 5f00;
glow_color_2 6200 b000 f300;
glow_enabled false;
glow_intensity 0,8;
image_height 540;
image_proportion 4;
image_width 960;
keyframe_last_to_render 0;
mat1_coloring_palette_offset 5,79;
mat1_coloring_saturation 0,74;
mat1_is_defined true;
mat1_reflectance 0,2;
mat1_specular 1,7;
mat1_specular_metallic 1,3;
mat1_specular_metallic_width 0,85;
mat1_specular_width 0,06;
mat1_surface_color_palette 3c4952 75743c 5f9041 0f282c deb247 695e30 0e2034 c5c182 a59f91 605863;
primitive_plane_1_enabled true;
primitive_plane_1_rotation 47,54 30,08 -24,64;
raytraced_reflections true;
target -4,862847000831835 3,340628601848595 0,6971428337956067;
view_distance_max 1331,370849898476;
volumetric_fog_colour_1_distance 4,111457030100332;
volumetric_fog_colour_2_distance 8,222914060200663;
volumetric_fog_density 4;
volumetric_fog_distance_factor 8,222914060200663;
[fractal_1]
IFS_abs_x true;
IFS_abs_y true;
IFS_abs_z true;
IFS_direction_1 0,1 0 0;
IFS_direction_2 0 0 0;
IFS_direction_5 1 -1 0;
IFS_direction_6 1 0 -1;
IFS_direction_7 0 1 -1;
IFS_distance_0 2,1;
IFS_distance_2 1,1;
IFS_distance_5 0,8;
IFS_distance_7 0,1;
IFS_enabled_0 true;
IFS_enabled_1 true;
IFS_enabled_2 true;
IFS_enabled_5 true;
IFS_enabled_6 true;
IFS_enabled_7 true;
IFS_menger_sponge_mode true;
IFS_offset 1 0 -0,1;
IFS_rotation 159,78 175,43 -23,75;
IFS_rotation_enabled true;
IFS_rotations_0 -7 0 0;
IFS_rotations_1 0 5 0;
IFS_rotations_2 5 5 -77;
IFS_rotations_5 5 0 0;
IFS_rotations_6 -6 -11 -5;
IFS_rotations_7 3 -9 -3;
IFS_scale -1,5;