Function FrustumCulling

engine/render/src/render/render.cpp:755–808

    }

    static void FrustumCulling(HRenderContext context, const dmIntersection::Frustum& frustum, uint32_t frustum_hash)
    {
        DM_PROFILE("FrustumCulling");

        uint32_t num_entries = context->m_RenderList.Size();
        if (num_entries == 0)
            return;

        BatchIterator<RenderListEntry*> iter(num_entries, context->m_RenderList.Begin(), RenderListEntryEqFn);
        while(iter.Next())
        {
            RenderListEntry* batch_start = iter.Begin();
            uint32_t batch_length = iter.Length();

            const RenderListDispatch* d = &context->m_RenderListDispatch[batch_start->m_Dispatch];
            if (!d->m_VisibilityFn)
            {
                SetVisibility(batch_length, batch_start, dmRender::VISIBILITY_FULL, FRUSTUM_HASH_UNINITIALIZED);
            }
            else
            {
                RenderListVisibilityParams params;
                params.m_Frustum = &frustum;
                params.m_UserData = d->m_UserData;

                uint32_t i =0;
                while(i < batch_length)
                {
                    // Skip over already calculated entries
                    while(i < batch_length && batch_start[i].m_FrustumHash == frustum_hash)
                    {
                        i++;
                    }

                    // Calculate start/end of entries to calculate culling for
                    uint32_t sub_batch_start = i;
                    while(i < batch_length && batch_start[i].m_FrustumHash != frustum_hash)
                    {
                        // Update hash here since we are already looping over the entries
                        batch_start[i].m_FrustumHash = frustum_hash;
                        i++;
                    }

                    // Execute culling for this sub-batch if > 0
                    params.m_Entries = batch_start + sub_batch_start;
                    params.m_NumEntries = i - sub_batch_start;
                    if (params.m_NumEntries > 0)
                    {
                        d->m_VisibilityFn(params);
                    }
                }
            }
        }
    }

    void SetTextureBindingByHash(dmRender::HRenderContext render_context, dmhash_t sampler_hash, dmGraphics::HTexture texture)
    {