void VHParticlesRender::drawSlices()
{
batchSize = pSys->nParts / nSlices;
glClearColor(0.0, 0.0, 0.0, 0.0);
lightFbo->bind();
glClearColor(1.0 - lightColor[0], 1.0 - lightColor[1], 1.0 - lightColor[2], 0.0);
glClear(GL_COLOR_BUFFER_BIT);
imageFbo->bind();
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
/*int at;
glGetIntegerv ( GL_ACTIVE_TEXTURE, &at );
int mm;
glGetIntegerv ( GL_MATRIX_MODE, &mm );
GLfloat texMat[16];
glGetFloatv(GL_TEXTURE_MATRIX, texMat);*/
glActiveTexture(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
//glPushMatrix();
glLoadMatrixf((GLfloat *) shadowMatrix.get_value());
//---
for(int i=0; i<nSlices; i++) {
// draw slice from camera view, sampling light buffer
drawSlice(i);
// draw slice from light view to light buffer, accumulating shadows
drawSliceLightView(i);
if (doBlur) {
blurLightBuffer();
}
}
glActiveTexture(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
//glPopMatrix();
glLoadIdentity();
//GLfloat texMat2[16];
//glGetFloatv(GL_TEXTURE_MATRIX, texMat2);
glMatrixMode(GL_MODELVIEW);
}
// draw particles as slices with shadowing
void SmokeRenderer::drawSlices()
{
m_batchSize = mNumParticles / m_numSlices;
// clear light buffer
m_srcLightTexture = 0;
m_lightFbo->Bind();
m_lightFbo->AttachTexture(GL_TEXTURE_2D, m_lightTexture[m_srcLightTexture], GL_COLOR_ATTACHMENT0_EXT);
glClearColor(1.0 - m_lightColor[0], 1.0 - m_lightColor[1], 1.0 - m_lightColor[2], 0.0);
glClear(GL_COLOR_BUFFER_BIT);
m_lightFbo->Disable();
// clear volume image
m_imageFbo->Bind();
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
m_imageFbo->Disable();
glActiveTexture(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
glLoadMatrixf((GLfloat *) m_shadowMatrix.get_value());
// render slices
if (m_numDisplayedSlices > m_numSlices) m_numDisplayedSlices = m_numSlices;
for(int i=0; i<m_numDisplayedSlices; i++) {
// draw slice from camera view, sampling light buffer
drawSlice(i);
// draw slice from light view to light buffer, accumulating shadows
drawSliceLightView(i);
if (m_doBlur) {
blurLightBuffer();
}
}
glActiveTexture(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
}
