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Author Topic: Mandelbulber 1.20  (Read 2858 times)
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Buddhi
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Posts: 895



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« on: December 28, 2013, 09:34:31 AM »

Mandelbulber 1.20

Open source program (GNU GPL) for rendering photo-realistic 3D fractals
Free download (executables and source): http://sourceforge.net/projects/mandelbulber/
Website:       http://www.mandelbulber.com/
User manual: http://wiki.mandelbulber.com/index.php?title=User_Manual

New features in version 1.20:

- OpenCL - added NoDE rendering engine
- OpenCL - added "limits" feature to rendering engine
- OpenCL - added "interior mode"
- OpecCL - added primitive objects
- OpenCL - next trial to fix the problem with -I option for OpenCL compiler (spaces in path were not passed properly). I hope this time it is permanent fix. There is used completely different method to pass include path.
- OpenCL - added setting for delta for deltaDE algorythm
- added HUD for flight path recording
- simplified code and corrected for "limits" and "interior mode"
- fixed bug: NetRender didn't worked under Windows 7 and Windows Vista. Now connection is limited to IPv4 and works properly.
- fixed problem with visibility of 3D cursor during flight path recording
- fixed resource leaks

Example of primitive object - water, used with Monte Carlo DOF


Example of "limits" and "interior mode"


SVN repository: http://mandelbulber.googlecode.com/svn/trunk/
This repository is available from Google Code: http://code.google.com/p/mandelbulber/
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mclarekin
Fractal Senior
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Posts: 1739



« Reply #1 on: December 29, 2013, 12:05:22 AM »

Thanks Buddhi, openCL now runs on my CPU Intel i3 2.13 MHz

For attached example:
Not openCL 39sec,
openCL Full: all shaders 22 sec,
openCL Normal 5 sec (wow)
openCL fast 4 sec compared to 13 sec without openCL

Some minor to major colouring differences

Runs on AMD platform but not on Intel platform (error -11),
OpenCL  Build log:   Compilation started
:318:10: error: cannot combine with previous 'type-name' declaration specifier
:318:15: error: expected identifier or '('
:319:8: error: expected identifier or '('
:320:32: error: expected expression
Compilation failed

whereas all CL CPU demos on Geeks 3D GPU Caps Viewer 1.19 work on the Intel platform, but this is all way beyond my limited knowledge ( I do note there are differences with the openCL extensions between the two platforms)

Lots of crashes with hybrids but oops just read post on hybrids

overall its great when it works. I suspect that when I upgrade my laptop and can use the GPU I may not have any problems.

Thanks again.





* openCL trial 1.jpg (198.78 KB, 900x452 - viewed 276 times.)
« Last Edit: December 29, 2013, 07:22:20 AM by mclarekin, Reason: read to use custom formulas instead of hybrids » Logged
mclarekin
Fractal Senior
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Posts: 1739



« Reply #2 on: December 30, 2013, 11:42:04 AM »

I was wondering if anyone can replicate the attached images. One was rendered without openCL the other using openCL Full mode, device type CPU. I found it interesting and a bit weird with my limited understanding



Mandelbulber 1.2;

image_height 800;

view_point_x 1.7579275248484949;

view_point_y -1.9210011098291331;

view_point_z -1.910784442376507;

angle_alfa -168.08092566700719;

angle_beta 14.19831608970291;

angle_gamma -37.64007796152945;

zoom 1.0000000000000001e-015;

perspective 1.2;

formula 8;

fractal_constant_factor 0.88;

brightness 0.80000000000000004;

ambient_occlusion 2;

ambient_occlusion_quality 3;

glow_intensity 0.10000000000000001;

glow_color_1_R 65535;

glow_color_1_G 1935;

glow_color_1_B 0;

glow_color_2_R 64715;

glow_color_2_G 65535;

glow_color_2_B 0;

background_color_1_G 30069;

background_color_2_R 0;

background_color_2_G 30069;

background_color_3_G 30069;

background_color_3_B 65535;

fog_colour_2_G 30069;

background_color_1_G 30069;

ambient_occlusion_enabled 1;

fast_ambient_occlusion_mode 1;

coloring_random_seed 291327;

coloring_palette_offset 137.30000000000001;

post_SSAO_enabled 0;

post_DOF_focus 129.8140237940022;

post_DOF_radius 10.4;

mandelbox_scale -1.5;

mandelbox_folding_min_radius 0.40999999999999998;

mandelbox_folding_fixed_radius 1.03;

mandelbox_rotation_main_alfa 12.000000000000002;

mandelbox_rotation_main_beta 6.0000000000000009;

mandelbox_rotation_main_gamma 2;

mandelbox_color_Sp1 3;

mandelbox_color_Sp2 1;


* openCL trial2.jpg (239.72 KB, 900x452 - viewed 251 times.)
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Buddhi
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Posts: 895



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« Reply #3 on: December 30, 2013, 02:44:16 PM »

Thanks for reporting this problem. You were right. There is a difference which should't be. OpenCL code uses fixed_radius parameter in wrong way.
In OCL code for mandelbox there is:

Code:
if (rr < mr2) m = native_divide(scale, mr2);
else if (rr < fr2) m = native_divide(scale,rr);

should be:
Code:
if (rr < mr2) m *= native_divide(fr2, mr2);
else if (rr < fr2) m *= native_divide(fr2, rr);

P.S. Next time when you paste parameters use [ code ]  [ /code ]  (# button in editor menu) or attach it as a text file.
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mclarekin
Fractal Senior
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Posts: 1739



« Reply #4 on: December 31, 2013, 08:04:09 AM »

Thanks for showing the corrected code. It gave me enough confidence to update the cl files myself smiley rather than waiting for the next version release.  A Beer Cup A Beer Cup

Another thought, if Custom Formulas Example 1 is based on the Mandelbox, should it also have m *= native_divide(fr2, mr2) and m *= native_divide(fr2,rr) in the code?
« Last Edit: December 31, 2013, 09:25:23 AM by mclarekin, Reason: another thought added » Logged
Buddhi
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Posts: 895



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« Reply #5 on: December 31, 2013, 10:29:36 AM »

Another thought, if Custom Formulas Example 1 is based on the Mandelbox, should it also have m *= native_divide(fr2, mr2) and m *= native_divide(fr2,rr) in the code?
In every OpenCL script is the same mistake
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Buddhi
Fractal Iambus
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Posts: 895



WWW
« Reply #6 on: January 01, 2014, 07:00:47 PM »

Thanks to quaz0r, now there is also Mandelbulber-OpenCL 1.20 for Windows 64-bit. Download from here: https://sourceforge.net/projects/mandelbulber/files/Mandelbulber%2064-bit%20OpenCL-1.20-Setup.exe/download
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R-TEAM
Forums Freshman
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Posts: 12


« Reply #7 on: January 02, 2014, 02:23:17 AM »

Hi,

now on my CPU on both systems OpenCL runs .... but not on the GPU ... (on both systems)
Have DL the 64 bit version ... Error:
Code:
  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(335): error: identifier
          "float3" is undefined
        float3 shadow = 1.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(338): error: identifier
          "float3" is undefined
        float3 point2;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(418): error: identifier
          "float3" is undefined
  float3 MainSpecular(sClShaderInputData *input)
  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(420): error: identifier
          "float3" is undefined
        float3 specular;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(421): error: identifier
          "float3" is undefined
        float3 half = input->lightVect - input->viewVector;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(431): error: identifier
          "float3" is undefined
  float3 SurfaceColour(__constant sClInConstants *consts, sClShaderInputData *in
put, global cl_float3 *palette)
  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(433): error: identifier
          "float3" is undefined
        float3 surfaceColour = 0.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(480): error: identifier
          "float3" is undefined
  float3 FastAmbientOcclusion2(__constant sClInConstants *consts, sClShaderInput
Data *input)
  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(491): error: identifier
          "float3" is undefined
                float3 pointTemp = input->point + input->normal * scan;
                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(497): error: identifier
          "float3" is undefined
        float3 output = ao;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(770): error: identifier
          "float3" is undefined
  float3 ObjectShader(__constant sClInConstants *consts, sClShaderInputData *inp
ut, float3 *specularOut, global sClInBuff *inBuff)
  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(770): error: identifier
          "float3" is undefined
  float3 ObjectShader(__constant sClInConstants *consts, sClShaderInputData *inp
ut, float3 *specularOut, global sClInBuff *inBuff)

    ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(772): error: identifier
          "float3" is undefined
        float3 output;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(775): error: identifier
          "float3" is undefined
        float3 vn = CalculateNormals(consts, input);
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(776): error: write to < 32
          bits via pointer not allowed unless cl_khr_byte_addressable_store is
          enabled
        input->normal = vn;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(778): error: identifier
          "float3" is undefined
        float3 mainLight = consts->params.mainLightIntensity * consts->params.ma
inLightColour;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(784): error: identifier
          "float3" is undefined
        float3 shade = shadeTemp;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(787): error: identifier
          "float3" is undefined
        float3 shadow = 1.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(791): error: identifier
          "float3" is undefined
        float3 specular = MainSpecular(input) * consts->params.specularIntensity
;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(794): error: identifier
          "float3" is undefined
        float3 colour = SurfaceColour(consts, input, inBuff->palette);
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(797): error: identifier
          "float3" is undefined
        float3 ambient = 0.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(808): error: identifier
          "float3" is undefined
        float3 ambient2 = ambient * consts->params.ambientOcclusionIntensity;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(811): error: identifier
          "float3" is undefined
        float3 auxLights = 0.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(812): error: identifier
          "float3" is undefined
        float3 auxLightsSpecular = 0.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(818): error: identifier
          "float3" is undefined
        float3 fakeLights = 0.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(819): error: identifier
          "float3" is undefined
        float3 fakeLightsSpecular = 0.0f;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(829): error: identifier
          "float3" is undefined
  float3 BackgroundShader(__constant sClInConstants *consts, sClShaderInputData
*input)
  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(831): error: identifier
          "float3" is undefined
        float3 vector = { 0.0f, 0.0f, -1.0f };
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(834): error: identifier
          "float3" is undefined
        float3 colour;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(849): error: identifier
          "float3" is undefined
  float3 VolumetricShader(__constant sClInConstants *consts, sClShaderInputData
*input, global sClInBuff *inBuff, float3 oldPixel)
  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(849): error: identifier
          "float3" is undefined
  float3 VolumetricShader(__constant sClInConstants *consts, sClShaderInputData
*input, global sClInBuff *inBuff, float3 oldPixel)

                                  ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(851): error: identifier
          "float3" is undefined
        float3 output = oldPixel;
        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(863): error: identifier
          "float3" is undefined
    float3 glowColour = (consts->params.glowColour1 * glowN + consts->params.glo
wColour2 * glow);
    ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(888): error: identifier
          "float3" is undefined
                float3 point = input->startPoint + input->viewVector * scan;
                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(889): error: write to < 32
          bits via pointer not allowed unless cl_khr_byte_addressable_store is
          enabled
                input->point = point;
                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(923): error: identifier
          "float3" is undefined
                                        float3 lightDistVect = point - inBuff->l
ights[i].position;
                                        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(952): error: identifier
          "float3" is undefined
                                float3 point2 = point + input->viewVector * step
2 * smallStep;
                                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(958): error: identifier
          "float3" is undefined
                                                float3 lightDistVect = point2 -
inBuff->lights[i].position;
                                                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(990): error: identifier
          "float3" is undefined
                                float3 shadowOutputTemp = MainShadow(consts, inp
ut);
                                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1032): error: identifier
          "float3" is undefined
                        float3 fogTemp = (consts->params.fogColour1 * kn + const
s->params.fogColour2 * k);
                        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1052): error: identifier
          "float3" is undefined
                        float3 newColour = 0.0f;
                        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1061): error: identifier
          "float3" is undefined
                                float3 fogCol = (consts->params.fogColour1 * kn
+ consts->params.fogColour2 * k);
                                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1078): error: identifier
          "float3" is undefined
                                                        float3 shadowOutputTemp
= MainShadow(consts, input);
                                                        ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1151): error: identifier
          "float3" is undefined
                const float3 one = (float3) {1.0f, 0.0f, 0.0f};
                      ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1151): error: identifier
          "float3" is undefined
                const float3 one = (float3) {1.0f, 0.0f, 0.0f};
                                    ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1151): error: expected a
          ";"
                const float3 one = (float3) {1.0f, 0.0f, 0.0f};
                                            ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1152): error: "float3" is
          not a type name
                const float3 ones = 1.0f;
                      ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1155): error: write to <
          32 bits via pointer not allowed unless cl_khr_byte_addressable_store
          is enabled
                rot.m1 = (float3){1.0f, 0.0f, 0.0f};
                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1155): error: expected a
          ";"
                rot.m1 = (float3){1.0f, 0.0f, 0.0f};
                                 ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1156): error: write to <
          32 bits via pointer not allowed unless cl_khr_byte_addressable_store
          is enabled
                rot.m2 = (float3){0.0f, 1.0f, 0.0f};
                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1156): error: expected a
          ";"
                rot.m2 = (float3){0.0f, 1.0f, 0.0f};
                                 ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1157): error: write to <
          32 bits via pointer not allowed unless cl_khr_byte_addressable_store
          is enabled
                rot.m3 = (float3){0.0f, 0.0f, 1.0f};
                ^

C:\Users\xxx~1\AppData\Local\Temp\OCL4329.tmp.cl(1157): error: expected a
          ";"
                rot.m3 = (float3){0.0f, 0.0f, 1.0f};
                                 ^

Error limit reached.
100 errors detected in the compilation of "C:\Users\xxx~1\AppData\Local\Temp\
OCL4329.tmp.cl".
Compilation terminated.

Internal error: clc compiler invocation failed.

ERROR: Program::build() (-11)

Regards
R-TEAM
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hobold
Fractal Bachius
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Posts: 573


« Reply #8 on: January 02, 2014, 02:37:48 AM »

OpenCL 1.0 did not support "float3" type. That was added in version 1.1 later. Can you find out the OpenCL version that your GPU (or the device driver, respectively) supports?
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R-TEAM
Forums Freshman
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Posts: 12


« Reply #9 on: January 02, 2014, 03:06:21 AM »

Hi,

OpenCL1.0

Regards
R-TEAM
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KBeezie
Alien
***
Posts: 28


« Reply #10 on: January 02, 2014, 09:22:16 AM »

Can't seem to get the ATI card selected when I enable OpenCL, no matter what I set for Platform/Device it keeps selecting the primary Nvidia card and resetting Platform/Device to 1/0. Was working in 1.9.

Edit: Seems to do it if I do 0/0 (didn't think zero was a possible option for platform since 1 was default)
« Last Edit: January 02, 2014, 09:24:20 AM by KBeezie » Logged
mclarekin
Fractal Senior
******
Posts: 1739



« Reply #11 on: January 02, 2014, 09:42:34 AM »

@ quaz0r. A big thanks as always. 64bit is considerably faster. A Beer Cup A Beer Cup

@ Hobold. Thanks for pointing me in the right direction. I now see that even though the platform is 1.2, my GPU device can only handle 1.0. A Beer Cup A Beer Cup
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Buddhi
Fractal Iambus
***
Posts: 895



WWW
« Reply #12 on: January 02, 2014, 09:44:17 AM »

Can't seem to get the ATI card selected when I enable OpenCL, no matter what I set for Platform/Device it keeps selecting the primary Nvidia card and resetting Platform/Device to 1/0. Was working in 1.9.

Edit: Seems to do it if I do 0/0 (didn't think zero was a possible option for platform since 1 was default)

Platform #1 was last saved value (default is 0). You must set it before (e.g. when you used 1.19). Program saves setting when application is closed, so for you default was 1  grin
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Buddhi
Fractal Iambus
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Posts: 895



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« Reply #13 on: January 02, 2014, 09:49:15 AM »

@ Hobold. Thanks for pointing me in the right direction. I now see that even though the platform is 1.2, my GPU device can only handle 1.0. A Beer Cup A Beer Cup

If it looks like your GFX card doesn't support OpenCL 1.1, try to upgrade drivers. Sometimes it is not a matter of card but software. It is worth to try.
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R-TEAM
Forums Freshman
**
Posts: 12


« Reply #14 on: January 02, 2014, 05:59:36 PM »

Hi,

Hint -> it would be nice to pointing , that the GPU musst handle OpenCL V1.1 or higher at last ....(if this not changed)

So bug reports/errors that come from this side can be closed smiley

Regards
R-TEAM
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