3dsmax - Converting coordinates system for FBX model in OpenGL -

-

i load fbx models using autodesk fbx sdk2013.the models rotated 90 degrees on x-axis default.

the sdk supplies method :

fbxaxissystem::opengl.convertscene(scene);

to perform axis conversion.but doesn't work.calling changes nothing.moreover,it seems fbx exporter uses opengl right hand sytem default,at least says on import:

     fbxaxissystem fbxaxis = scene->getglobalsettings().getaxissystem();              if (fbxaxis != fbxaxissystem::opengl)             {                       //....             }

returns false. don't understand;if opengl (right handed system,why models have z axis up? sdk bug?

i found solution.someone here said convertscene() doesn't affect vertices array sets node global/local matrices.with these can transform node geometry or vertices.

so here how done:

    fbxmatrix globaltransform = mesh->getnode()->getscene()->getevaluator()->getnodeglobaltransform( mesh->getnode()); dvec4 c0 =  glm::make_vec4((double*)  globaltransform.getcolumn(0).buffer()); dvec4 c1 =  glm::make_vec4((double*) globaltransform.getcolumn(1).buffer()); dvec4 c2 =  glm::make_vec4((double*) globaltransform.getcolumn(2).buffer()); dvec4 c3 =  glm::make_vec4((double*) globaltransform.getcolumn(3).buffer()); glm::mat4 convertmatr =mat4(c0,c1,c2,c3); convertmatr = inverse(convertmatr); //need inverse otherwise model upside down

then use convertmatr transform mesh's vertices.hope helpful autodesk forum not responsive.


Comments

Post a Comment

Popular posts from this blog

css - Which browser returns the correct result for getBoundingClientRect of an SVG element? -

-
this svg contains rect overflows svg element: <svg id='svg' width='10' height='10'> <rect x='-10' y='-10' width='30' height='30'/> </svg> chrome 28 , opera 12 return getboundingclientrect() svg element width , height of 10. firefox 23 reports width , height of 30. correct? jsfiddle the relevant spec cssom , delegates svg spec if svg element not "have associated css layout box". haven't found definition of "having associated css layout box", correct result seem hinge on definition, getbbox returns 30x30 rect in browsers. this firefox bug fixed now, fix in firefox nightlies , should make through firefox 33 released on 14 october 2014. see bug 530985 details.
Read more

gcc - Calling fftR4() in c from assembly -

-
i trying asm fft implementation www.embeddedsignals.com work. running make gives error: undefined reference fftr4(short*, short*, int) at top of asm have .syntax unified .thumb .global fftr4 .type fftr4, %function and there #define's associate c functions arguments registers followed macros fftr4 function uses. after that, fftr4 called .thumb_func fftr4: stmfd sp!, {r4-r11, lr} mov tmp0, #0 // bit reversed counter mov tmp1, #0 .word 0xf3a2fa92 //rbit r3,r2 //rbit r,n lsl r,#3 and c code follows: void fftr4(short *y, short *x, int n); short x[512]; short y[512]; int i; void loop() { (i=0;i<512;i++) x[i]=0; (i=0;i<512;i=i+8) { x[i+0]=16384; x[i+2]=16384; x[i+4]=-16384; x[i+6]=-16384;} fftr4(y, x, 256); serialusb.println(y[128]); serialusb.println(y[129]); serialusb.println(y[384]); serialusb.println(y[385]); // expected results: //y[128]is 8191; y[129] -8190 y[...
Read more

.htaccess - Matching full URL in RewriteCond -

-
i'm trying block post access site (and return 403), except 2 ip's , 1 url ( http://mydomain.com/about-us/contact-us/ ). here's have: rewritecond %{request_method} post rewritecond %{remote_addr} !=1.2.3.4 rewritecond %{remote_addr} !=4.3.2.1 rewritecond %{request_uri} !^http://mydomain.com/about-us/contact-us/$ rewriterule ^ / [f] these rules allowing access ip properly, contact page still not accessible. i'm not sure i'm using request_uri correctly? i've tried variations relative urls rewritecond %{request_uri} !^/about-us/contact-us$ , rewritecond %{request_uri} !^/about-us/contact-us/$ without luck. what doing wrong please? it looks me rule on file name specific. if relax bit, should work. made few other esthetic tweaks. give try: rewritecond %{request_method} post rewritecond %{remote_addr} !^1.2.3.4 rewritecond %{remote_addr} !^4.3.2.1 rewritecond %{request_uri} !about-us/contact-us rewriterule ^ - [f]
Read more