LogalDeveloper/Minecraft-Overviewer
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created a distinct 'hidden' function

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This commit is contained in:
Aaron Griffith
2011-09-07 17:16:43 -04:00
parent 43629e928b
commit bc138ac859
10 changed files with 145 additions and 68 deletions
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21
overviewer_core/src/rendermodes.h
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@@ -62,12 +62,30 @@ struct _RenderModeInterface {
/* may return non-zero on error, last arg is options */
int (*start)(void *, RenderState *, PyObject *);
void (*finish)(void *, RenderState *);
/* returns non-zero to skip rendering this block */
/* returns non-zero to skip rendering this block because it's not visible */
int (*occluded)(void *, RenderState *, int, int, int);
/* returns non-zero to skip rendering this block because the user doesn't
* want it visible */
int (*hidden)(void *, RenderState *, int, int, int);
/* last two arguments are img and mask, from texture lookup */
void (*draw)(void *, RenderState *, PyObject *, PyObject *, PyObject *);
};
/* A quick note about the difference between occluded and hidden:
*
* Occluded should be used to tell the renderer that a block will not be
* visible in the final image because other blocks will be drawn on top of
* it. This is a potentially *expensive* check that should be used rarely,
* usually only once per block. The idea is this check is expensive, but not
* as expensive as drawing the block itself.
*
* Hidden is used to tell the renderer not to draw the block, usually because
* the current rendermode depends on those blocks being hidden to do its
* job. For example, cave mode uses this to hide non-cave blocks. This check
* should be *cheap*, as it's potentially called many times per block. For
* example, in lighting mode it is called at most 4 times per block.
*/
/* wrapper for passing around rendermodes */
struct _RenderMode {
void *mode;
@@ -79,6 +97,7 @@ struct _RenderMode {
RenderMode *render_mode_create(const char *mode, RenderState *state);
void render_mode_destroy(RenderMode *self);
int render_mode_occluded(RenderMode *self, int x, int y, int z);
int render_mode_hidden(RenderMode *self, int x, int y, int z);
void render_mode_draw(RenderMode *self, PyObject *img, PyObject *mask, PyObject *mask_light);
/* helper function for reading in rendermode options