/**
Callback that occurs when glut thinks its time to redraw the window.
*/
void handleDisplay()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
// update the light position
glLightfv(GL_LIGHT0, GL_POSITION, lightPosition0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
setCamera();
// draw the light source
drawLightSource();
// draw the wall background
drawBackdropGeometry();
// draw scene objects
glColor3f(0.0,0.0,1.0);
drawScene();
// calc and draw shadows
if (shadowsOn && light0On)
{
calculateShadows(floorPlane);
drawShadows();
calculateShadows(wallPlane);
drawShadows();
}
glFlush();
glutSwapBuffers();
}
void LightView::draw(const Rect& dest, const Rect& src)
{
g_painter->saveAndResetState();
m_lightbuffer->bind();
g_painter->setCompositionMode(Painter::CompositionMode_Replace);
drawGlobalLight(m_globalLight);
g_painter->setBlendEquation(m_blendEquation);
g_painter->setCompositionMode(Painter::CompositionMode_Add);
for(const LightSource& source : m_lightMap)
drawLightSource(source.center, source.color, source.radius);
m_lightbuffer->release();
g_painter->setCompositionMode(Painter::CompositionMode_Light);
m_lightbuffer->draw(dest, src);
g_painter->restoreSavedState();
}
void drawQuad(){
glActiveTexture(GL_TEXTURE0);
glEnable(GL_TEXTURE_2D);
// Pass information to our shader to our shader
int texture_location = glGetUniformLocation(myShaderManager->program,"brick_image");
glUniform1i(texture_location,0);
glBindTexture(GL_TEXTURE_2D,myShaderManager->layer1ID);
glActiveTexture(GL_TEXTURE1);
glEnable(GL_TEXTURE_2D);
glUniform1i(glGetUniformLocation(myShaderManager->program,"bump_image"),1);
glBindTexture(GL_TEXTURE_2D,myShaderManager->layer2ID);
// Pass in the shader program id, which is 'program'
glBegin(GL_QUADS);
glTexCoord2f(0,0);
glVertex3f(-1,1,0);
glTexCoord2f(1,0);
glVertex3f(-1,-1,0);
glTexCoord2f(1,1);
glVertex3f(1,-1,0);
glTexCoord2f(0,1);
glVertex3f(1,1,0);
glEnd();
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, 0);
glDisable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
glDisable(GL_TEXTURE_2D);
drawLightSource();
}
void MyViz::ambientOcclusion_voxel(GLsizei nf, Eigen::Matrix4f transformMatrix)
{
voxelize_3Dtexture(transformMatrix, nf);
program_occusionDrawer_3DTexture.use();
voxelImage.bind();
GLuint loc_voxelImageTex = glGetUniformLocation(program_occusionDrawer_3DTexture.m_program_obj, "voxelImage");
glUniform1i(loc_voxelImageTex, 0);
//setup parameter
program_occusionDrawer_3DTexture.setParameter(shaderAttrib::fv3, (void*)&Parameter::getInstance()->lightPosition, "lightPosition");
program_occusionDrawer_3DTexture.setParameter(shaderAttrib::i1, (void*)&Parameter::getInstance()->OctreeLevel, "maxLevel");
program_occusionDrawer_3DTexture.setParameter(shaderAttrib::f1, (void*)&Parameter::getInstance()->distance_weight, "weight");
program_occusionDrawer_3DTexture.setParameter(shaderAttrib::mat4x4, (void*)&transformMatrix, "transform");
draw(nf);
// draw_mesh(nf);
program_occusionDrawer_3DTexture.unuse();
drawLightSource();
}
