float* GLQuadRenderer::createTextureBuffer(const Group& group) const
{
FloatBuffer* fbuffer = NULL;
switch(texturingMode)
{
case TEXTURE_2D :
fbuffer = dynamic_cast<FloatBuffer*>(group.createBuffer(TEXTURE_BUFFER_NAME,FloatBufferCreator(8),TEXTURE_2D,false));
if (!group.getModel()->isEnabled(PARAM_TEXTURE_INDEX))
{
float t[8] = {1.0f,0.0f,0.0f,0.0f,0.0f,1.0f,1.0f,1.0f};
for (size_t i = 0; i < group.getParticles().getNbReserved() << 3; ++i)
fbuffer->getData()[i] = t[i & 7];
}
break;
case TEXTURE_3D :
fbuffer = dynamic_cast<FloatBuffer*>(group.createBuffer(TEXTURE_BUFFER_NAME,FloatBufferCreator(12),TEXTURE_3D,false));
float t[12] = {1.0f,0.0f,0.0f,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f,1.0f,1.0f,0.0f};
for (size_t i = 0; i < group.getParticles().getNbReserved() * 12; ++i)
fbuffer->getData()[i] = t[i % 12];
break;
}
return fbuffer->getData();
}
void GLLineTrailRenderer::createBuffers(const Group& group)
{
FloatBuffer* fVertexBuffer = dynamic_cast<FloatBuffer*>(group.createBuffer(VERTEX_BUFFER_NAME,FloatBufferCreator((nbSamples + 2) * 3),nbSamples,true));
FloatBuffer* fColorBuffer = dynamic_cast<FloatBuffer*>(group.createBuffer(COLOR_BUFFER_NAME,FloatBufferCreator((nbSamples + 2) << 2),nbSamples,true));
FloatBuffer* fValueBuffer = dynamic_cast<FloatBuffer*>(group.createBuffer(VALUE_BUFFER_NAME,FloatBufferCreator(nbSamples),nbSamples,true));
vertexIterator = vertexBuffer = fVertexBuffer->getData();
colorIterator = colorBuffer = fColorBuffer->getData();
valueIterator = valueBuffer = fValueBuffer->getData();
// Fills the buffers with correct values
for (size_t i = 0; i < group.getNbParticles(); ++i)
{
const Particle& particle = group.getParticle(i);
init(particle,particle.getAge());
}
// Resets the iterators at the beginning after the init
vertexIterator = vertexBuffer;
colorIterator = colorBuffer;
valueIterator = valueBuffer;
}
void GLQuadRenderer::createBuffers(const Group& group)
{
FloatBuffer* fBuffer = dynamic_cast<FloatBuffer*>(group.createBuffer(GPU_BUFFER_NAME,FloatBufferCreator(28),0,false));
gpuIterator = gpuBuffer = fBuffer->getData();
if (texturingMode != TEXTURE_NONE)
textureIterator = textureBuffer = createTextureBuffer(group);
}
void GLLineRenderer::createBuffers(const Group& group)
{
FloatBuffer* fBuffer = dynamic_cast<FloatBuffer*>(group.createBuffer(GPU_BUFFER_NAME,FloatBufferCreator(14),0,false));
gpuIterator = gpuBuffer = fBuffer->getData();
}