Welcome to Fractal Forums

Fractal Software => Bug Reporting => Topic started by: taurus on August 23, 2017, 01:10:04 AM



Title: alpha 6 start fails
Post by: taurus on August 23, 2017, 01:10:04 AM
Any idea on win 10?

Title: Re: alpha 6 start fails
Post by: mclarekin on August 23, 2017, 02:19:38 AM
 I have just tried win10 and it installs and works OK on both Intel and AMD GPUs, but openCL still crashes on Intel  CPU.

Title: Re: alpha 6 start fails
Post by: taurus on August 23, 2017, 09:53:49 AM
Quote from: mclarekin on August 23, 2017, 02:19:38 AM
Intel and AMD GPUs, but openCL still crashes on Intel  CPU.
What about Nvidia?

Title: Re: alpha 6 start fails
Post by: Kyzia on August 23, 2017, 12:50:50 PM
Quote from: taurus on August 23, 2017, 01:10:04 AM
Any idea on win 10?


If I had to guess on the cause of that error message, the space in "Program Files" is not being correctly escaped.  

Try running it from a directory that doesn't have a space in the name.

Edit : My copy of Alpha6 is in a directory that doesn't contain a space.  If I rename the directory to contain a space, and then run it, the program will start, but will throw an error when I select 'Render'

Title: Re: alpha 6 start fails
Post by: taurus on August 23, 2017, 07:28:44 PM
Quote from: Kyzia on August 23, 2017, 12:50:50 PM
If I had to guess on the cause of that error message, the space in "Program Files" is not being correctly escaped.

Good guess. From my software storage directory (without spaces) it starts fine.
But I encountered several other issues, I'll report later.
One frequent thing is, that it stops redrawing sometimes. Within animations as well as from hitting render button. Only restarting the program can solve (like some time in the past)
I can see no pattern when it occurs - seems arbitrary.

Title: Re: alpha 6 start fails
Post by: Buddhi on August 23, 2017, 07:42:32 PM
Thanks for reporting the problem and quick diagnose. I will check the code and add needed quotation marks to solve this problem.

Title: Re: alpha 6 start fails
Post by: Kyzia on August 23, 2017, 07:44:21 PM
I've encountered occasional failure to redraw as well.  Not very frequent, and no discernible pattern, but in both Alpha 6 and Alpha 5 (I didn't use any of the previous Alphas).

Title: Re: alpha 6 start fails
Post by: Buddhi on August 23, 2017, 07:59:18 PM
This problem with spaces in file path is related to nvidia driver. It works properly with Intel and AMD. Fortunately there is workaround for it. I will try to implement it as soon as possible.

https://forums.khronos.org/showthread.php/8478-Putting-a-space-in-path-supplied-to-clBuildProgram()

Title: Re: alpha 6 start fails
Post by: mclarekin on August 23, 2017, 10:54:40 PM
Quote
I've encountered occasional failure to redraw as well

This has been an issue for some time (and an alternate problem is the progress bar not updating).  If you then change zoom setting  the image will be refreshed, but restarting program is the only way to get rid of the problem.

It seems really random, I have not had this problem at all lately.

Title: Re: alpha 6 start fails
Post by: taurus on August 24, 2017, 04:24:03 AM
This one completely ignores reflectance. Sometimes Mandelbulber crashes after loading it. I left the file paths in, although they are not in use.
Code:
# Mandelbulber settings file
# version 2.11
# only modified parameters
[main_parameters]
ambient_occlusion 2;
ambient_occlusion_enabled true;
ambient_occlusion_quality 5;
antialiasing_enabled true;
antialiasing_size 3;
background_rotation -49,6 65 -109,87;
bailout 4096;
camera 0,008112028925547812 0,03173938516055841 -0,479182271608214;
camera_distance_to_target 0,4000000000000002;
camera_rotation -5,950759715609089 -1,1891439250041 90;
camera_top 0,9946113603847808 -0,1036737275954501 6,121713073667159e-17;
contrast 1,2;
DE_factor 0,5;
detail_level 1,25;
file_background C:Users	aurusmandelbulber	exturesDH211SN.jpg;
file_lightmap C:Users	aurusmandelbulber	exturesDH211SN.jpg;
flight_last_to_render 0;
fog_color_1 0000 1600 1900;
fog_color_2 4c00 7800 7e00;
fog_color_3 d900 f100 f400;
formula_1 8;
formula_2 91;
formula_iterations_1 16;
formula_material_id 2;
formula_stop_iteration_1 350;
formula_stop_iteration_2 350;
gamma 1,3;
glow_color_1 0000 0f00 1200;
glow_color_2 6a00 7400 7e00;
glow_intensity 1,62181;
hdr true;
hybrid_fractal_enable true;
image_height 960;
image_width 1280;
julia_c -20 0 0;
julia_mode true;
keyframe_last_to_render 0;
limit_max 0,5 15 15;
limit_min -15 -1 -15;
limits_enabled true;
main_light_alpha -75,95999999999999;
main_light_beta 69,44;
mat1_coloring_palette_offset 8,76;
mat1_coloring_speed 5;
mat1_fractal_coloring_sphere_radius 0,01;
mat1_is_defined true;
mat1_specular 1,5;
mat1_specular_width 0,3;
mat1_surface_color_palette 4f1f09 6d3a1d dda067 7a9e84 304e4c 153135 304e4c 7b9f85 dda067 6c391c;
mat2_is_defined true;
mat2_reflectance 0,8;
mat2_specular 3;
mat2_specular_width 0,2;
mat2_surface_color 2d00 2d00 2d00;
mat2_use_colors_from_palette false;
N 350;
raytraced_reflections true;
reflections_max 3;
repeat_from 2;
shadows_cone_angle 5;
smoothness 3;
target 0,04957258882781527 0,4294982469584309 -0,4874834663325667;
use_default_bailout false;
volumetric_fog_colour_1_distance 0,2;
volumetric_fog_colour_2_distance 0,4;
volumetric_fog_distance_factor 0,3;
volumetric_fog_enabled true;
[fractal_1]
IFS_rotation_enabled true;
mandelbox_color 0,03 0,05 0;
mandelbox_color_Sp1 0,1;
mandelbox_color_Sp2 0,5;
mandelbox_folding_limit 0,5;
mandelbox_folding_min_radius 0;
mandelbox_folding_value 1;
mandelbox_scale 1;
[fractal_2]
IFS_abs_x true;
IFS_abs_y true;
IFS_abs_z true;
IFS_direction_5 1 -1 0;
IFS_direction_6 1 0 -1;
IFS_direction_7 0 1 -1;
IFS_distance_5 0,5;
IFS_distance_6 0,5;
IFS_distance_7 0,5;
IFS_enabled_5 true;
IFS_enabled_6 true;
IFS_enabled_7 true;
IFS_rotation 45 0 0;
IFS_rotation_enabled true;
IFS_scale 3;
mandelbox_rotation_main 12,5 0 0;
mandelbox_scale -1;
transf_addition_constant 0,5 0,5 0,5;
transf_addition_constantA_000 0,5 0 0;
transf_constant_multiplier_111 0,5000000000000001 0,5000000000000001 0,5000000000000001;
transf_function_enabledz_false true;
transf_int_A 5;
transf_int_B 20;
transf_offset_0005 0,1;
transf_offsetA_0 0,1;
transf_offsetB_0 0,9999999999999999;
transf_rotation 26,57 45 -69,2;
transf_stop_iterations_P1 5;
transf_stop_iterations_S 10;
[fractal_3]
IFS_rotation_enabled true;
[fractal_4]
IFS_rotation_enabled true;


Theese reproducible error messages, I get with this particular parameter.
Code:
# Mandelbulber settings file
# version 2.11
# only modified parameters
[main_parameters]
ambient_occlusion_enabled true;
ambient_occlusion_quality 5;
bailout 1024;
camera -1,459508749047711 -3,496355658690785 -0,423733652939966;
camera_distance_to_target 1,413734197616577;
camera_rotation 109,9101763269014 -70,93418056338591 109,8084656622376;
camera_top -0,01925350009803546 0,9936678512884969 -0,1106955466569293;
DE_factor 0,5312652587890625;
detail_level 2;
dont_add_c_constant_1 true;
flight_last_to_render 0;
formula_1 8;
formula_2 8;
formula_iterations_1 20;
formula_iterations_2 100;
formula_iterations_3 100;
formula_iterations_4 100;
hybrid_fractal_enable true;
image_height 768;
image_width 1024;
julia_c 0 12 0;
julia_mode true;
keyframe_last_to_render 0;
limit_max 10 10 0;
mat1_is_defined true;
mat1_reflectance 0,5;
raytraced_reflections true;
reflections_max 2;
smoothness 5;
target -1,89370785436383 -3,653620770077761 -1,759915977023663;
use_default_bailout false;
volumetric_fog_colour_1_distance 0,3;
volumetric_fog_colour_2_distance 0,5;
volumetric_fog_distance_factor 0,7;
volumetric_fog_enabled true;
[fractal_1]
mandelbox_folding_min_radius 0;
mandelbox_folding_value 1,99;
mandelbox_scale -1;
[fractal_2]
mandelbox_folding_min_radius 0;
mandelbox_folding_value 4;
[fractal_4]
transf_addition_constant 0 12 0;

Some others with reflections work.

Title: Re: alpha 6 start fails
Post by: Buddhi on August 24, 2017, 08:11:40 AM
About ignoring reflectance value. You have used material #2 to set appearance of the fractal. Existing OpenCL rendering engine still can use only material #1. Selection of materials will be implemented in next months.

Second problem is probably related to issue with graphics drivers under Windows. This fractal is slow for rendering so calculation of one rectangle probably takes more than 2 seconds. Graphics drives has the timeout which causes this problem. Timeout can be changed by editing Widows registry.
Try to use this solution: https://stackoverflow.com/a/17187135/6455535




Title: Re: alpha 6 start fails
Post by: taurus on August 24, 2017, 04:07:04 PM
Quote from: Buddhi on August 24, 2017, 08:11:40 AM
About ignoring reflectance value. You have used material #2 to set appearance of the fractal. Existing OpenCL rendering engine still can use only material #1. Selection of materials will be implemented in next months.

Ok. That's due to the alpha satus.

Quote from: Buddhi on August 24, 2017, 08:11:40 AM
Second problem is probably related to issue with graphics drivers under Windows. This fractal is slow for rendering so calculation of one rectangle probably takes more than 2 seconds. Graphics drives has the timeout which causes this problem. Timeout can be changed by editing Widows registry.
Try to use this solution: https://stackoverflow.com/a/17187135/6455535

The error occurs on compiling openCL, before the calculation. So far, I can see no change after setting timeout to 4sec. As several other timeouts are 5sec by default, I hesitate to go further. Or maybe changes take place after next restart. Especially other parameters with iter fog and volumetric light show the same behaviour. I'll keep you up to date.
Many thanks for the effort on this alpha. It is a step in the right direction!

Title: Re: alpha 6 start fails
Post by: Buddhi on August 24, 2017, 04:08:28 PM
Change of registry takes effect after restart of Windows.

Title: Re: alpha 6 start fails
Post by: Buddhi on August 24, 2017, 04:14:37 PM
I will do more trials under Windows (normally I run under Linux), to be sure that this problem is related to the timeout.

Title: Re: alpha 6 start fails
Post by: Buddhi on August 24, 2017, 05:32:23 PM
I have just recreated this issue under Windows 10 with nVidia GTX 1050. When I used your settings I got exactly the same errors. Then I added folowing registry entry:

Code:
KeyPath   : HKEY_LOCAL_MACHINESystemCurrentControlSetControlGraphicsDrivers
KeyValue  : TdrDelay
ValueType : REG_DWORD
ValueData : Number of seconds to delay. I have set 60 seconds.

(https://snag.gy/cfxgdB.jpg)

Restart of Windows was needed to apply this change. After restart all "heavy" setting files are rendered properly. Of course during rendering Windows is almost not refreshing screen and mouse cursor, but rendering works.

This problem only exists under Windows. Linux works much better with long OpenCL computations.

Title: Re: alpha 6 start fails
Post by: taurus on August 24, 2017, 05:35:39 PM
great to hear!  :dink:
Usually I restart my machine not more than once a week, but I'll speed it up this time

Title: Re: alpha 6 start fails
Post by: taurus on August 25, 2017, 09:50:00 AM
After a restart, all parameters I tried are working fine with a timeout setting of four seconds. That's not that harsh and should be enough for most cases... O0

Title: Re: alpha 6 start fails
Post by: taurus on August 25, 2017, 03:31:17 PM
One last note. The leading edge of gpu single precision vs CPU has melted in full mode to less than 1:5 on my machine (i7 6770k, GTX960). This suggests, that there won't remain a significant advantage on consumer cards, when it comes to double precision calculations.



Powered by SMF 1.1.21 | SMF © 2015, Simple Machines