void SmokeRenderer::render()
{
switch(mDisplayMode) {
case POINTS:
glColor3f(1.0, 1.0, 1.0);
m_simpleProg->enable();
drawPoints(0, mNumParticles, false);
m_simpleProg->disable();
break;
case SPRITES:
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_COLOR);
glColor4f(1.0, 1.0, 1.0, m_spriteAlpha);
drawPointSprites(m_particleProg, 0, mNumParticles, false);
break;
case VOLUMETRIC:
drawSlices();
compositeResult();
break;
case NUM_MODES:
break;
}
if (m_displayLightBuffer) {
// display light buffer to screen
glViewport(0, 0, m_lightBufferSize, m_lightBufferSize);
glDisable(GL_DEPTH_TEST);
displayTexture(m_lightTexture[m_srcLightTexture]);
glViewport(0, 0, mWindowW, mWindowH);
}
glutReportErrors();
}
void Renderer::display(DisplayMode mode, GLSLProgram *prog)
{
switch (mode)
{
case PARTICLE_POINTS:
glColor3f(1, 1, 1);
glPointSize(m_pointSize);
_drawPoints();
break;
case PARTICLE_FLUID:
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_COLOR);
glColor4f(0.5, 0.5, 0.5, 0.1);
glEnable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE); // don't write depth
glEnable(GL_BLEND);
prog->enable();
//prog->setUniform1f("pointRadius", mParticleRadius);
prog->setUniform1f("pointRadius", 0.5f);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, m_vbo);
glVertexPointer(4, GL_FLOAT, 0, 0);
glEnableClientState(GL_VERTEX_ARRAY);
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, m_indexBuffer);
glDrawElements(GL_POINTS, m_numParticles, GL_UNSIGNED_INT, (void *)(0 * sizeof(unsigned int)));
//glDrawArrays(GL_POINTS, 0, m_numParticles);
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
prog->disable();
glDepthMask(GL_TRUE);
glDisable(GL_BLEND);
default:
case PARTICLE_SPHERES:
//glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_COLOR);
//glColor4f(0.5, 0.5, 0.5, 0.1);
//glEnable(GL_DEPTH_TEST);
//glDepthMask(GL_FALSE); // don't write depth
//glEnable(GL_BLEND);
//prog->enable();
////prog->setUniform1f("pointRadius", mParticleRadius);
//prog->setUniform1f("pointRadius", 1.5f);
//glBindBufferARB(GL_ARRAY_BUFFER_ARB, m_vbo);
//glVertexPointer(4, GL_FLOAT, 0, 0);
//glEnableClientState(GL_VERTEX_ARRAY);
//if (m_colorVBO){
// glBindBufferARB(GL_ARRAY_BUFFER_ARB, m_colorVBO);
// glColorPointer(4, GL_FLOAT, 0, 0);
// glEnableClientState(GL_COLOR_ARRAY);
//}
//if (m_velVbo)
//{
// glBindBufferARB(GL_ARRAY_BUFFER_ARB, m_velVbo);
// glClientActiveTexture(GL_TEXTURE0);
// glTexCoordPointer(4, GL_FLOAT, 0, 0);
// glEnableClientState(GL_TEXTURE_COORD_ARRAY);
//}
//if (m_indexBuffer){
// glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, m_indexBuffer);
// glDrawElements(GL_POINTS, m_numParticles, GL_UNSIGNED_INT, (void *)(0 * sizeof(unsigned int)));
// glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
//}
//glDisableClientState(GL_VERTEX_ARRAY);
//glDisableClientState(GL_COLOR_ARRAY);
//prog->disable();
//glDepthMask(GL_TRUE);
//glDisable(GL_BLEND);
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);
m_imageFbo->Bind();
glViewport(0, 0, m_imageW, m_imageH);
glColor4f(1.0, 1.0, 1.0, 1.0);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
drawpointsprite();
m_imageFbo->Disable();
glActiveTexture(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
//drawPostProcess();
compositeResult();
//m_program->enable();
//glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
//glVertexPointer(4, GL_FLOAT, 0, 0);
//glEnableClientState(GL_VERTEX_ARRAY);
///*glBindBufferARB(GL_ARRAY_BUFFER_ARB, normalVbo);
//glNormalPointer(GL_FLOAT, sizeof(float) * 4, 0);
//glEnableClientState(GL_NORMAL_ARRAY);*/
//glColor3f(1.0, 0.0, 0.0);
//glDrawArrays(GL_TRIANGLES, 0, totalVerts);
//glDisableClientState(GL_VERTEX_ARRAY);
//glDisableClientState(GL_NORMAL_ARRAY);
//glBindBuffer(GL_ARRAY_BUFFER, 0);
//m_program->disable();
// break;
}
}
