Fragment shader error

[ghost]

Hi,

I can't load my 3D volume on my laptop without getting the shader failed error below:

`-------------Error----------------

Fragment shader failed to compile with the following errors:
ERROR: 0:85: error(#132) Syntax error: ")" parse error
ERROR: error(#273) 1 compilation errors. No code generated

-----------Shader---------------

1 : #extension GL_ARB_texture_rectangle : enable
2 : uniform sampler2D lutTex;
3 : uniform sampler2DRect dragTex;
4 : uniform int gridx;
5 : uniform int gridy;
6 : uniform int gridz;
7 : uniform int ncols;
8 : uniform int llod;
9 : uniform int lgridx;
10 : uniform int lgridy;
11 : uniform int lgridz;
12 : uniform int lncols;
13 : uniform bool opshader;
14 : uniform float tfSet;
15 : void main(void)
16 : {
17 : vec2 tc = gl_TexCoord[0].xy;
18 : int lcol = int(tc.x)/lgridx;
19 : int lrow = int(tc.y)/lgridy;
20 : float x = tc.x - float(lcollgridx);
21 : float y = tc.y - float(lrowlgridy);
22 : float z = float(lrowlncols + lcol);
23 : vec3 pos = vec3(x,y,z);
24 : bvec3 pless = lessThan(pos, vec3(1.5,1.5,1.5));
25 : bvec3 pgret = greaterThan(pos, vec3(float(lgridx)-2.5,float(lgridy)-2.5,float(lgridz)-2.5));
26 : if (any(pless) || any(pgret))
27 : { gl_FragColor = vec4(0.0,0.0,0.0,0.0); return; }
28 : float xO = xfloat(llod);
29 : float yO = yfloat(llod);
30 : float zO = zfloat(llod);
31 : int alod = llod-1;
32 : vec4 fcolor = vec4(0.0,0.0,0.0,0.0);
33 : for(int xa=-alod; xa<=alod; xa++)
34 : for(int ya=-alod; ya<=alod; ya++)
35 : for(int za=-alod; za<=alod; za++)
36 : {
37 : float x = xO + xa;
38 : float y = yO + ya;
39 : float z = zO + za;
40 : int row = int(z)/ncols;
41 : int col = int(z) - row*ncols;
42 : row *= gridy;
43 : col = gridx;
44 : tc = vec2(float(col)+x, float(row)+y);
45 : vec2 vg;
46 : vg.x = texture2DRect(dragTex, tc.xy).x;
47 : vec3 sample1, sample2;
48 : float x1 = max(0.0, float(x-1.0));
49 : sample1.x = texture2DRect(dragTex, vec2(float(col)+x1, float(row)+y)).x;
50 : x1 = min(float(gridx-1), float(x+1.0));
51 : sample2.x = texture2DRect(dragTex, vec2(float(col)+x1, float(row)+y)).x;
52 : float y1 = max(0.0, float(y-1.0));
53 : sample1.y = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y1)).x;
54 : y1 = min(float(gridy-1), float(y+1.0));
55 : sample2.y = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y1)).x;
56 : int z1 = int(max(0.0, float(z-1.0)));
57 : row = z1/ncols;
58 : col = z1 - rowncols;
59 : row *= gridy;
60 : col = gridx;
61 : sample1.z = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y)).x;
62 : z1 = int(min(float(gridz-1), float(z+1.0)));
63 : row = z1/ncols;
64 : col = z1 - rowncols;
65 : row *= gridy;
66 : col = gridx;
67 : sample2.z = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y)).x;
68 : vg.y = distance(sample1, sample2);
69 : float val = vg.x;
70 : float grad = vg.y0.125;
71 : vg.y = tfSet + grad;
72 : if (opshader)
73 : {
74 : float alpha = texture2D(lutTex, vg.xy).a;
75 : fcolor += vec4(val, grad, alpha, 1.0);
76 : }
77 : else
78 : {
79 : vec4 clr = texture2D(lutTex, vg.xy);
80 : clr.rgb = clr.a;
81 : clr.a = step(0.01, clr.a);
82 : fcolor += clr;
83 : }
84 : }
85 : gl_FragColor = fcolor/pow(2.0(float)alod+1, 3.0);
86 : }
87 : `

I have been able to open the same volume on another PC. I'm running drishti 2.6.5 on a windows 10 laptop with integrated amd radeon r6 graphics card. I've updated the driver but I still get the same error.

Thanks,
Nathan

[AjayLimaye]

Hi Nathan, Make sure that the program is running on the discrete graphics card rather than the integrated one. Cheers, Ajay

…

On Sun, 14 Jul. 2019, 8:48 am nsutemire, ***@***.***> wrote: Hi, I can't load my 3D volume on my laptop without getting the shader failed error below: `-------------Error---------------- Fragment shader failed to compile with the following errors: ERROR: 0:85: error(#132) Syntax error: ")" parse error ERROR: error(#273) 1 compilation errors. No code generated -----------Shader--------------- 1 : #extension GL_ARB_texture_rectangle : enable 2 : uniform sampler2D lutTex; 3 : uniform sampler2DRect dragTex; 4 : uniform int gridx; 5 : uniform int gridy; 6 : uniform int gridz; 7 : uniform int ncols; 8 : uniform int llod; 9 : uniform int lgridx; 10 : uniform int lgridy; 11 : uniform int lgridz; 12 : uniform int lncols; 13 : uniform bool opshader; 14 : uniform float tfSet; 15 : void main(void) 16 : { 17 : vec2 tc = gl_TexCoord[0].xy; 18 : int lcol = int(tc.x)/lgridx; 19 : int lrow = int(tc.y)/lgridy; 20 : float x = tc.x - float(lcol *lgridx); 21 : float y = tc.y - float(lrow*lgridy); 22 : float z = float(lrow *lncols + lcol); 23 : vec3 pos = vec3(x,y,z); 24 : bvec3 pless = lessThan(pos, vec3(1.5,1.5,1.5)); 25 : bvec3 pgret = greaterThan(pos, vec3(float(lgridx)-2.5,float(lgridy)-2.5,float(lgridz)-2.5)); 26 : if (any(pless) || any(pgret)) 27 : { gl_FragColor = vec4(0.0,0.0,0.0,0.0); return; } 28 : float xO = x*float(llod); 29 : float yO = y *float(llod); 30 : float zO = z*float(llod); 31 : int alod = llod-1; 32 : vec4 fcolor = vec4(0.0,0.0,0.0,0.0); 33 : for(int xa=-alod; xa<=alod; xa++) 34 : for(int ya=-alod; ya<=alod; ya++) 35 : for(int za=-alod; za<=alod; za++) 36 : { 37 : float x = xO + xa; 38 : float y = yO + ya; 39 : float z = zO + za; 40 : int row = int(z)/ncols; 41 : int col = int(z) - row*ncols; 42 : row *= gridy; 43 : col *= gridx; 44 : tc = vec2(float(col)+x, float(row)+y); 45 : vec2 vg; 46 : vg.x = texture2DRect(dragTex, tc.xy).x; 47 : vec3 sample1, sample2; 48 : float x1 = max(0.0, float(x-1.0)); 49 : sample1.x = texture2DRect(dragTex, vec2(float(col)+x1, float(row)+y)).x; 50 : x1 = min(float(gridx-1), float(x+1.0)); 51 : sample2.x = texture2DRect(dragTex, vec2(float(col)+x1, float(row)+y)).x; 52 : float y1 = max(0.0, float(y-1.0)); 53 : sample1.y = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y1)).x; 54 : y1 = min(float(gridy-1), float(y+1.0)); 55 : sample2.y = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y1)).x; 56 : int z1 = int(max(0.0, float(z-1.0))); 57 : row = z1/ncols; 58 : col = z1 - row*ncols; 59 : row *= gridy; 60 : col *= gridx; 61 : sample1.z = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y)).x; 62 : z1 = int(min(float(gridz-1), float(z+1.0))); 63 : row = z1/ncols; 64 : col = z1 - row*ncols; 65 : row *= gridy; 66 : col *= gridx; 67 : sample2.z = texture2DRect(dragTex, vec2(float(col)+x, float(row)+y)).x; 68 : vg.y = distance(sample1, sample2); 69 : float val = vg.x; 70 : float grad = vg.y*0.125; 71 : vg.y = tfSet + grad; 72 : if (opshader) 73 : { 74 : float alpha = texture2D(lutTex, vg.xy).a; 75 : fcolor += vec4(val, grad, alpha, 1.0); 76 : } 77 : else 78 : { 79 : vec4 clr = texture2D(lutTex, vg.xy); 80 : clr.rgb *= clr.a; 81 : clr.a = step(0.01, clr.a); 82 : fcolor += clr; 83 : } 84 : } 85 : gl_FragColor = fcolor/pow(2.0*(float)alod+1, 3.0); 86 : } 87 : ` I have been able to open the same volume on another PC. I'm running drishti 2.6.5 on a windows 10 laptop with integrated amd radeon r6 graphics card. I've updated the driver but I still get the same error. Thanks, Nathan — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#34?email_source=notifications&email_token=ABMVVLVXUR35PJC45DVLG5TP7JLVJA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4G7BVG5A>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABMVVLVXDQPEZ3BHSURQZPDP7JLVJANCNFSM4IDDTDFA> .

[Wencke1]

Hi erveryone.
I do have the same problem with the same error code.
I updated the driver but still the same problem. I am running drishti 2.6.5 on a windows 10 PC with a Radeon Pro WX7100 graphics card.
Cheers
Wencke

[Wencke1]

Hi everyone,
I found a solution which workes for me.
I use drishdi 2.6.4 now, and this works with my setting without a problem.
Cheers
Wencke

[AjayLimaye]

Hi Wencke, How did you solve the problem? Cheers, Ajay

…

On Tue, 8 Oct. 2019, 2:16 am Wencke1, ***@***.***> wrote: Hi everyone, I found a solution which workes for me. I use drishdi 2.6.4 now, and this works with my setting without a problem. Cheers Wencke — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#34?email_source=notifications&email_token=ABMVVLXMCZI2LAMTJPPBSELQNNHDVA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEAQW6BA#issuecomment-539062020>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABMVVLQVMJHCGP4V4ZHTIYDQNNHDVANCNFSM4IDDTDFA> .

[Wencke1]

Hi Ajay, sorry to dissappoint you, I just tryed an older version of Drishti (2.6.4 instaed of 2.6.5) and now it runs fiine.Cheers, Wencke

[pavel-perina]

Hi.
Very similar error, I may try to update driver. This one came as with Windows 10 1903.

Radeon RX 570 Series AMD Radeon Graphics Processor (0x67DF)
driver version: 22.19.162.4
driver date: 2017-04-24

OpenGL info:
ATI Technologies Inc.
Radeon RX 570 Series
3.2.13474 Core Profile Forward-Compatible Context 22.19.162.4
-------------Error----------------

Fragment shader failed to compile with the following errors:
ERROR: 0:69: error(#132) Syntax error: ")" parse error
ERROR: error(#273) 1 compilation errors. No code generated

-----------Shader---------------

1 : #extension GL_ARB_texture_rectangle : enable
2 : uniform sampler2D lutTex;
3 : uniform sampler2DRect dragTex;
4 : uniform int gridx;
5 : uniform int gridy;
6 : uniform int gridz;
7 : uniform int ncols;
8 : uniform int llod;
9 : uniform int lgridx;
10 : uniform int lgridy;
11 : uniform int lgridz;
12 : uniform int lncols;
13 : uniform bool opshader;
14 : uniform float tfSet;
15 : void main(void)
16 : {
17 : vec2 tc = gl_TexCoord[0].xy;
18 : int lcol = int(tc.x)/lgridx;
19 : int lrow = int(tc.y)/lgridy;
20 : float x = tc.x - float(lcollgridx);
21 : float y = tc.y - float(lrowlgridy);
22 : float z = float(lrowlncols + lcol);
23 : vec3 pos = vec3(x,y,z);
24 : bvec3 pless = lessThan(pos, vec3(1.5,1.5,1.5));
25 : bvec3 pgret = greaterThan(pos, vec3(float(lgridx)-2.5,float(lgridy)-2.5,float(lgridz)-2.5));
26 : if (any(pless) || any(pgret))
27 : { gl_FragColor = vec4(0.0,0.0,0.0,0.0); return; }
28 : float xO = xfloat(llod);
29 : float yO = yfloat(llod);
30 : float zO = zfloat(llod);
31 : int alod = llod-1;
32 : vec4 fcolor = vec4(0.0,0.0,0.0,0.0);
33 : for(int xa=-alod; xa<=alod; xa++)
34 : for(int ya=-alod; ya<=alod; ya++)
35 : for(int za=-alod; za<=alod; za++)
36 : {
37 : float x = xO + xa;
38 : float y = yO + ya;
39 : float z = zO + za;
40 : int row = int(z)/ncols;
41 : int col = int(z) - row*ncols;
42 : row = gridy;
43 : col = gridx;
44 : tc = vec2(float(col)+x, float(row)+y);
45 : vec2 vg;
46 : vg.x = texture2DRect(dragTex, tc.xy).x;
47 : int h0 = int(65535.0vg.x);
48 : int h1 = h0 / 256;
49 : h0 = int(mod(float(h0),256.0));
50 : float fh0 = float(h0)/256.0;
51 : float fh1 = float(h1)/256.0;
52 : vg.xy = vec2(fh0, fh1);
53 : float val = vg.x;
54 : float grad = vg.y0.125;
55 : vg.y = tfSet + grad;
56 : if (opshader)
57 : {
58 : float alpha = texture2D(lutTex, vg.xy).a;
59 : fcolor += vec4(val, grad, alpha, 1.0);
60 : }
61 : else
62 : {
63 : vec4 clr = texture2D(lutTex, vg.xy);
64 : clr.rgb = clr.a;
65 : clr.a = step(0.01, clr.a);
66 : fcolor += clr;
67 : }
68 : }
69 : gl_FragColor = fcolor/pow(2.0(float)alod+1, 3.0);
70 : }
71 :

[pavel-perina]

Actually, I guess bug is in (float)alod which should be float(alod) ... and i forgot if shaders allow implicit conversions, maybe there should be 1.0 instead of 1

[pavel-perina]

I patched executable to fix the previous error and got another one.
Obviously it was never tested on AMD GPUs.

-------------Error----------------

Fragment shader failed to compile with the following errors:
ERROR: 0:22: error(#160) Cannot convert from: "float" to: "highp int"
ERROR: error(#273) 1 compilation errors. No code generated

-----------Shader---------------

1 : #extension GL_ARB_texture_rectangle : enable
2 : uniform sampler2DRect lightTex;
3 : uniform int gridx;
4 : uniform int gridy;
5 : uniform int gridz;
6 : uniform int ncols;
7 : uniform float llod;
8 : uniform int lgridx;
9 : uniform int lgridy;
10 : uniform int lncols;
11 : void main(void)
12 : {
13 : vec2 tc = gl_TexCoord[0].xy;
14 : int col = int(tc.x)/gridx;
15 : int row = int(tc.y)/gridy;
16 : float x = tc.x - float(colgridx);
17 : float y = tc.y - float(rowgridy);
18 : float z = float(rowncols + col);
19 : float xO = xfloat(llod);
20 : float yO = yfloat(llod);
21 : float zO = zfloat(llod);
22 : int alod = llod-1;
23 : vec4 fcolor = vec4(0.0,0.0,0.0,0.0);
24 : for(int xa=-alod; xa<=alod; xa++)
25 : for(int ya=-alod; ya<=alod; ya++)
26 : for(int za=-alod; za<=alod; za++)
27 : {
28 : float x = xO + xa;
29 : float y = yO + ya;
30 : float z = zO + za;
31 : int lrow = int(z)/lncols;
32 : int lcol = int(z) - lrow*lncols;
33 : lrow *= lgridy;
34 : lcol = lgridx;
35 : vec2 ltc = vec2(float(lcol)+x, float(lrow)+y);
36 : fcolor += vec4(texture2DRect(lightTex, ltc).rgb, 1.0);
37 : }
38 : gl_FragColor = fcolor/pow(2.0float(alod)+1, 3.0);
39 : }
40 :

[AjayLimaye]

Hi Tim, Try drishti.exe from Drishti_PerpetualBeta https://cloudstor.aarnet.edu.au/plus/s/ykqMmmikfXxHxKC Cheers, Ajay

…

On Thu, Oct 10, 2019 at 6:31 PM Pavel Peřina ***@***.***> wrote: I patched executable to fix the previous error and got another one. Obviously it was never tested on AMD GPUs. -------------Error---------------- Fragment shader failed to compile with the following errors: ERROR: 0:22: error(#160) Cannot convert from: "float" to: "highp int" ERROR: error(#273) 1 compilation errors. No code generated -----------Shader--------------- 1 : #extension GL_ARB_texture_rectangle : enable 2 : uniform sampler2DRect lightTex; 3 : uniform int gridx; 4 : uniform int gridy; 5 : uniform int gridz; 6 : uniform int ncols; 7 : uniform float llod; 8 : uniform int lgridx; 9 : uniform int lgridy; 10 : uniform int lncols; 11 : void main(void) 12 : { 13 : vec2 tc = gl_TexCoord[0].xy; 14 : int col = int(tc.x)/gridx; 15 : int row = int(tc.y)/gridy; 16 : float x = tc.x - float(col *gridx); 17 : float y = tc.y - float(row*gridy); 18 : float z = float(row *ncols + col); 19 : float xO = x*float(llod); 20 : float yO = y *float(llod); 21 : float zO = z*float(llod); 22 : int alod = llod-1; 23 : vec4 fcolor = vec4(0.0,0.0,0.0,0.0); 24 : for(int xa=-alod; xa<=alod; xa++) 25 : for(int ya=-alod; ya<=alod; ya++) 26 : for(int za=-alod; za<=alod; za++) 27 : { 28 : float x = xO + xa; 29 : float y = yO + ya; 30 : float z = zO + za; 31 : int lrow = int(z)/lncols; 32 : int lcol = int(z) - lrow*lncols; 33 : lrow *= lgridy; 34 : lcol *= lgridx; 35 : vec2 ltc = vec2(float(lcol)+x, float(lrow)+y); 36 : fcolor += vec4(texture2DRect(lightTex, ltc).rgb, 1.0); 37 : } 38 : gl_FragColor = fcolor/pow(2.0*float(alod)+1, 3.0); 39 : } 40 : — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#34?email_source=notifications&email_token=ABMVVLSSL6MLFAAOZ244P5DQN3K4DA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEA3F7DI#issuecomment-540434317>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABMVVLVPTCFM7VXHEPF4XRTQN3K4DANCNFSM4IDDTDFA> .

[pavel-perina]

Hi Ajay. That executable file in cloud root directory that is few hours old works (at least basic features of default and hi-res renderers). Thank you. Pavel

…

On Mon, Oct 14, 2019 at 3:02 AM AjayLimaye ***@***.***> wrote: Hi Tim, Try drishti.exe from Drishti_PerpetualBeta https://cloudstor.aarnet.edu.au/plus/s/ykqMmmikfXxHxKC Cheers, Ajay On Thu, Oct 10, 2019 at 6:31 PM Pavel Peřina ***@***.***> wrote: > I patched executable to fix the previous error and got another one. > Obviously it was never tested on AMD GPUs. > > -------------Error---------------- > > Fragment shader failed to compile with the following errors: > ERROR: 0:22: error(#160) Cannot convert from: "float" to: "highp int" > ERROR: error(#273) 1 compilation errors. No code generated > > -----------Shader--------------- > > 1 : #extension GL_ARB_texture_rectangle : enable > 2 : uniform sampler2DRect lightTex; > 3 : uniform int gridx; > 4 : uniform int gridy; > 5 : uniform int gridz; > 6 : uniform int ncols; > 7 : uniform float llod; > 8 : uniform int lgridx; > 9 : uniform int lgridy; > 10 : uniform int lncols; > 11 : void main(void) > 12 : { > 13 : vec2 tc = gl_TexCoord[0].xy; > 14 : int col = int(tc.x)/gridx; > 15 : int row = int(tc.y)/gridy; > 16 : float x = tc.x - float(col > *gridx); 17 : float y = tc.y - float(row*gridy); > 18 : float z = float(row > *ncols + col); 19 : float xO = x*float(llod); > 20 : float yO = y > *float(llod); 21 : float zO = z*float(llod); > 22 : int alod = llod-1; > 23 : vec4 fcolor = vec4(0.0,0.0,0.0,0.0); > 24 : for(int xa=-alod; xa<=alod; xa++) > 25 : for(int ya=-alod; ya<=alod; ya++) > 26 : for(int za=-alod; za<=alod; za++) > 27 : { > 28 : float x = xO + xa; > 29 : float y = yO + ya; > 30 : float z = zO + za; > 31 : int lrow = int(z)/lncols; > 32 : int lcol = int(z) - lrow*lncols; > 33 : lrow *= lgridy; > 34 : lcol > > > > *= lgridx; 35 : vec2 ltc = vec2(float(lcol)+x, float(lrow)+y); 36 : fcolor > += vec4(texture2DRect(lightTex, ltc).rgb, 1.0); 37 : } 38 : gl_FragColor = > fcolor/pow(2.0*float(alod)+1, 3.0); > 39 : } > 40 : > > — > You are receiving this because you commented. > Reply to this email directly, view it on GitHub > < #34?email_source=notifications&email_token=ABMVVLSSL6MLFAAOZ244P5DQN3K4DA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEA3F7DI#issuecomment-540434317 >, > or unsubscribe > < https://github.com/notifications/unsubscribe-auth/ABMVVLVPTCFM7VXHEPF4XRTQN3K4DANCNFSM4IDDTDFA > > . > — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#34?email_source=notifications&email_token=ADE3EUWOLBR46DZ3NX75JWDQOPALNA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEBDEURY#issuecomment-541477447>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADE3EUTXDO2ER4JMEPR2SSTQOPALNANCNFSM4IDDTDFA> .

[AjayLimaye]

Problem is we don't have any machines with AMD card (which apply stricter rules) to test. Hence these errors keep popping up. Cheers, Ajay On Tue, Oct 15, 2019 at 1:08 AM Pavel Peřina <notifications@github.com> wrote:

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Hi Ajay. That executable file in cloud root directory that is few hours old works (at least basic features of default and hi-res renderers). Thank you. Pavel On Mon, Oct 14, 2019 at 3:02 AM AjayLimaye ***@***.***> wrote: > Hi Tim, > Try drishti.exe from Drishti_PerpetualBeta > https://cloudstor.aarnet.edu.au/plus/s/ykqMmmikfXxHxKC > > Cheers, > Ajay > > On Thu, Oct 10, 2019 at 6:31 PM Pavel Peřina ***@***.***> > wrote: > > > I patched executable to fix the previous error and got another one. > > Obviously it was never tested on AMD GPUs. > > > > -------------Error---------------- > > > > Fragment shader failed to compile with the following errors: > > ERROR: 0:22: error(#160) Cannot convert from: "float" to: "highp int" > > ERROR: error(#273) 1 compilation errors. No code generated > > > > -----------Shader--------------- > > > > 1 : #extension GL_ARB_texture_rectangle : enable > > 2 : uniform sampler2DRect lightTex; > > 3 : uniform int gridx; > > 4 : uniform int gridy; > > 5 : uniform int gridz; > > 6 : uniform int ncols; > > 7 : uniform float llod; > > 8 : uniform int lgridx; > > 9 : uniform int lgridy; > > 10 : uniform int lncols; > > 11 : void main(void) > > 12 : { > > 13 : vec2 tc = gl_TexCoord[0].xy; > > 14 : int col = int(tc.x)/gridx; > > 15 : int row = int(tc.y)/gridy; > > 16 : float x = tc.x - float(col > > *gridx); 17 : float y = tc.y - float(row*gridy); > > 18 : float z = float(row > > *ncols + col); 19 : float xO = x*float(llod); > > 20 : float yO = y > > *float(llod); 21 : float zO = z*float(llod); > > 22 : int alod = llod-1; > > 23 : vec4 fcolor = vec4(0.0,0.0,0.0,0.0); > > 24 : for(int xa=-alod; xa<=alod; xa++) > > 25 : for(int ya=-alod; ya<=alod; ya++) > > 26 : for(int za=-alod; za<=alod; za++) > > 27 : { > > 28 : float x = xO + xa; > > 29 : float y = yO + ya; > > 30 : float z = zO + za; > > 31 : int lrow = int(z)/lncols; > > 32 : int lcol = int(z) - lrow*lncols; > > 33 : lrow *= lgridy; > > 34 : lcol > > > > > > > > *= lgridx; 35 : vec2 ltc = vec2(float(lcol)+x, float(lrow)+y); 36 : > fcolor > > += vec4(texture2DRect(lightTex, ltc).rgb, 1.0); 37 : } 38 : gl_FragColor > = > > fcolor/pow(2.0*float(alod)+1, 3.0); > > 39 : } > > 40 : > > > > — > > You are receiving this because you commented. > > Reply to this email directly, view it on GitHub > > < > #34?email_source=notifications&email_token=ABMVVLSSL6MLFAAOZ244P5DQN3K4DA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEA3F7DI#issuecomment-540434317 > >, > > or unsubscribe > > < > https://github.com/notifications/unsubscribe-auth/ABMVVLVPTCFM7VXHEPF4XRTQN3K4DANCNFSM4IDDTDFA > > > > . > > > > — > You are receiving this because you commented. > Reply to this email directly, view it on GitHub > < #34?email_source=notifications&email_token=ADE3EUWOLBR46DZ3NX75JWDQOPALNA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEBDEURY#issuecomment-541477447 >, > or unsubscribe > < https://github.com/notifications/unsubscribe-auth/ADE3EUTXDO2ER4JMEPR2SSTQOPALNANCNFSM4IDDTDFA > > . > — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#34?email_source=notifications&email_token=ABMVVLRNGWHZJGRZ3BFI5V3QOR4OBA5CNFSM4IDDTDFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEBE3AUY#issuecomment-541700179>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABMVVLT54RXH5RWOUOWXT2TQOR4OBANCNFSM4IDDTDFA> .