Cleanup: split Cycles export into smaller files

1 files changed, 95 insertions, 0 deletions

diff --git a/intern/cycles/blender/blender_volume.cpp b/intern/cycles/blender/blender_volume.cpp
new file mode 100644
index 00000000000..87fb9620725
--- /dev/null
+++ b/intern/cycles/blender/blender_volume.cpp
@@ -0,0 +1,95 @@
+
+/*
+ * Copyright 2011-2013 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "render/colorspace.h"
+#include "render/mesh.h"
+#include "render/object.h"
+
+#include "blender/blender_sync.h"
+#include "blender/blender_util.h"
+
+CCL_NAMESPACE_BEGIN
+
+static void sync_smoke_volume(Scene *scene, BL::Object &b_ob, Mesh *mesh, float frame)
+{
+  BL::FluidDomainSettings b_domain = object_fluid_gas_domain_find(b_ob);
+  if (!b_domain) {
+    return;
+  }
+
+  ImageManager *image_manager = scene->image_manager;
+  AttributeStandard attributes[] = {ATTR_STD_VOLUME_DENSITY,
+                                    ATTR_STD_VOLUME_COLOR,
+                                    ATTR_STD_VOLUME_FLAME,
+                                    ATTR_STD_VOLUME_HEAT,
+                                    ATTR_STD_VOLUME_TEMPERATURE,
+                                    ATTR_STD_VOLUME_VELOCITY,
+                                    ATTR_STD_NONE};
+
+  for (int i = 0; attributes[i] != ATTR_STD_NONE; i++) {
+    AttributeStandard std = attributes[i];
+    if (!mesh->need_attribute(scene, std)) {
+      continue;
+    }
+
+    mesh->volume_isovalue = b_domain.clipping();
+
+    Attribute *attr = mesh->attributes.add(std);
+    VoxelAttribute *volume_data = attr->data_voxel();
+    ImageMetaData metadata;
+    bool animated = false;
+
+    volume_data->manager = image_manager;
+    volume_data->slot = image_manager->add_image(Attribute::standard_name(std),
+                                                 b_ob.ptr.data,
+                                                 animated,
+                                                 frame,
+                                                 INTERPOLATION_LINEAR,
+                                                 EXTENSION_CLIP,
+                                                 IMAGE_ALPHA_AUTO,
+                                                 u_colorspace_raw,
+                                                 metadata);
+  }
+
+  /* Create a matrix to transform from object space to mesh texture space.
+   * This does not work with deformations but that can probably only be done
+   * well with a volume grid mapping of coordinates. */
+  if (mesh->need_attribute(scene, ATTR_STD_GENERATED_TRANSFORM)) {
+    Attribute *attr = mesh->attributes.add(ATTR_STD_GENERATED_TRANSFORM);
+    Transform *tfm = attr->data_transform();
+
+    BL::Mesh b_mesh(b_ob.data());
+    float3 loc, size;
+    mesh_texture_space(b_mesh, loc, size);
+
+    *tfm = transform_translate(-loc) * transform_scale(size);
+  }
+}
+
+void BlenderSync::sync_volume(BL::Object &b_ob, Mesh *mesh)
+{
+  bool old_has_voxel_attributes = mesh->has_voxel_attributes();
+
+  /* Smoke domain. */
+  sync_smoke_volume(scene, b_ob, mesh, b_scene.frame_current());
+
+  /* Tag update. */
+  bool rebuild = (old_has_voxel_attributes != mesh->has_voxel_attributes());
+  mesh->tag_update(scene, rebuild);
+}
+
+CCL_NAMESPACE_END