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2018-06-28T18:42:52Z

1版をインポートしました

2009年8月17日 (月) 11:01にwiki>Mxによる

2009-08-17T11:01:34Z

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== Freestyle Internals Overview ==

=== File directories ===

{|
|-
| release/scripts/freestyle/
|                              
| where sample style module files are stored
|-
| source/blender/makesdna/
|
| data structure to load and save configurations
|-
| source/blender/freestyle/
|
| core engine
|-
|
| app_blender/
|
|-
|
| geometry/
|
|-
|
| image/
|
|-
|
| python/
|
|-
|
| rendering/
|
|-
|
| scene_graph/
|
|-
|
| stroke/
|
|-
|
| system/
|
|-
|
| view_map/
|
|-
|
| winged_edge/
|
|}

=== Constants ===
DNA_scene_types.h
{|
|-
| R_EDGE_FRS
|      
| render Freestyle strokes toggle button (in 'Output' panel)
|-
| B_FRS_ADD_MODULE
|
| composite strokes in current render layer (in 'Render Layers' panel)
|}

butspace.h
{|
|-
| B_FRS_SELECT_RENDER_LAYER
|      
| render layer selection list
|-
| B_FRS_ADD_MODULE
|
| adding new module to render layer configuration
|-
| B_FRS_SELECT_MODULE_FILE
|
| select module
|}

=== Interface ===

FRS_freestyle.h
<pre>
// (re)initialize Freestyle when .blend file read
void FRS_initialize();

// cleans up Freestyle resources before program quits
void FRS_exit();

// composites Freestyle stroke for the specified Render target
void FRS_add_Freestyle(Render* re);

// panel configuration
void FRS_select_layer( SceneRenderLayer* srl );
void FRS_add_module();
void FRS_delete_module(void *module_index_ptr, void *unused);
void FRS_move_up_module(void *module_index_ptr, void *unused);
void FRS_move_down_module(void *module_index_ptr, void *unused);
void FRS_set_module_path(void *module_index_ptr, void *unused);
</pre>

FRS_freestyle_config.h
<pre>
void FRS_add_freestyle_config( SceneRenderLayer* srl );
void FRS_free_freestyle_config( SceneRenderLayer* srl );
</pre>

Configuration information is stored in SceneRenderLayer(DNA_scene_types.h) structure for loading/saving.

DNA_freestyle_types.h
<pre>
typedef struct FreestyleModuleConfig {
struct FreestyleModuleConfig *next, *prev;

char module_path[256];
short is_displayed;
short pad[3];

} FreestyleModuleConfig;
</pre>

<pre>
typedef struct FreestyleConfig {
ListBase modules;

int flags;
float sphere_radius;
float dkr_epsilon;
int pad;

} FreestyleConfig;
</pre>

=== Pipeline ===

initialization:
# toggle 'Freestyle' button on
# for each render layer where you want Freestyle strokes rendered, toggle 'FrSt' on
# configure each render layer's configuration

when clicking "Render"
do_render_3d (pipeline.c)
<pre>
if 'Freestyle' button pressed and internal renderer selected
strokes added (calling FRS_add_Freestyle)
</pre>

FRS_add_Freestyle (FRS_freestyle.cpp)
<pre>
init view and camera (based on information from the scene)
used during for view map calculation
stored in:
- freestyle_viewpoint[3]: camera position
- freestyle_mv[4][4]: modelview matrix
- freestyle_proj[4][4]: projection matrix
- freestyle_viewport[4]: viewport

for each render layers
if ( render layer is enabled
and 'FrSt' layer option toggled on
and render layer has at least one enabled style module
)
{
prepare rendering
clear canvas
load mesh
add style modules
set parameters
compute view map

render strokes in independent image
composite strokes image into render layer
}
</pre>

=== Freestyle engine implementation (TODO) ===

View map calculation

=== Python API implementation (TODO) ===

Directors

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Yamyam: 1版 をインポートしました

2009年8月17日 (月) 11:01にwiki>Mxによる

Yamyam: 1版をインポートしました