1.1 --- a/src/demo.cc	Fri Apr 13 15:43:45 2012 +0300
     1.2 +++ b/src/demo.cc	Sat Apr 14 00:54:11 2012 +0300
     1.3 @@ -1,3 +1,4 @@
     1.4 +#include <assert.h>
     1.5  #include <GL/glew.h>
     1.6  #include "demo.h"
     1.7  #include "sdr.h"
     1.8 @@ -19,18 +20,23 @@
     1.9  	vol->create(SZ, SZ, SZ);
    1.10  	volray_setvolume(vol);
    1.11  
    1.12 -	glGenFramebuffers(1, &fbo);
    1.13 -	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
    1.14 -	glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
    1.15 +	assert(glGenFramebuffersEXT);
    1.16 +	assert(glBindFramebufferEXT);
    1.17 +	assert(glFramebufferTexture3DEXT);
    1.18 +	assert(glCheckFramebufferStatusEXT);
    1.19 +
    1.20 +	glGenFramebuffersEXT(1, &fbo);
    1.21 +	glBindFramebufferEXT(GL_FRAMEBUFFER, fbo);
    1.22 +	glFramebufferTexture3DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
    1.23  			vol->get_texture(), 0, 0);
    1.24  
    1.25 -	unsigned int stat = glCheckFramebufferStatus(GL_FRAMEBUFFER);
    1.26 +	unsigned int stat = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER);
    1.27  	if(stat != GL_FRAMEBUFFER_COMPLETE) {
    1.28  		printf("incomplete framebuffer: %u\n", stat);
    1.29  		delete vol;
    1.30  		return false;
    1.31  	}
    1.32 -	glBindFramebuffer(GL_FRAMEBUFFER, 0);
    1.33 +	glBindFramebufferEXT(GL_FRAMEBUFFER, 0);
    1.34  
    1.35  	return true;
    1.36  }
    1.37 @@ -44,11 +50,11 @@
    1.38  	glPushAttrib(GL_VIEWPORT_BIT);
    1.39  	glViewport(0, 0, SZ, SZ);
    1.40  
    1.41 -	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
    1.42 +	glBindFramebufferEXT(GL_FRAMEBUFFER, fbo);
    1.43  	bind_program(sdr_mballs);
    1.44  
    1.45  	for(int i=0; i<SZ; i++) {
    1.46 -		glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
    1.47 +		glFramebufferTexture3DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
    1.48  				vol->get_texture(), 0, i);
    1.49  
    1.50  		float z = (float)i / (float)SZ;
    1.51 @@ -66,7 +72,7 @@
    1.52  	}
    1.53  
    1.54  	bind_program(0);
    1.55 -	glBindFramebuffer(GL_FRAMEBUFFER, 0);
    1.56 +	glBindFramebufferEXT(GL_FRAMEBUFFER, 0);
    1.57  
    1.58  	glPopAttrib();
    1.59  }