LogalDeveloper/Minecraft-Overviewer
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converted lighting mode into a primitive

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This commit is contained in:
Aaron Griffith
2012-01-08 22:31:41 -05:00
parent c93715ebfa
commit ae88b6e27b
4 changed files with 127 additions and 161 deletions
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21
overviewer_core/rendermodes.py
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@@ -93,9 +93,20 @@ class DepthTinting(RenderPrimitive):
self._depth_colors = depth_colors
return depth_colors
# Render 3 blending masks for lighting
# first is top (+Z), second is left (-X), third is right (+Y)
def generate_facemasks():
class Lighting(RenderPrimitive):
name = "lighting"
options = {
"strength": ("how dark to make the shadows, from 0.0 to 1.0", 1.0),
"night": ("whether to use nighttime skylight settings", False),
"color": ("whether to use colored light", False),
}
@property
def facemasks(self):
facemasks = getattr(self, "_facemasks", None)
if facemasks:
return facemasks
white = Image.new("L", (24,24), 255)
top = Image.new("L", (24,24), 0)
@@ -122,5 +133,5 @@ def generate_facemasks():
for x,y in [(13,11), (17,9), (21,7)]:
right.putpixel((x,y), 0)
return (top, left, right)
facemasks = generate_facemasks()
self._facemasks = (top, left, right)
return self._facemasks

151
overviewer_core/src/rendermode-lighting.c → overviewer_core/src/primitives/lighting.c
View File

@@ -15,9 +15,37 @@
* with the Overviewer. If not, see <http://www.gnu.org/licenses/>.
*/
#include "overviewer.h"
#include "../overviewer.h"
#include <math.h>
typedef struct {
PyObject *facemasks_py;
PyObject *facemasks[3];
/* extra data, loaded off the chunk class */
PyObject *skylight, *blocklight;
PyObject *left_skylight, *left_blocklight;
PyObject *right_skylight, *right_blocklight;
PyObject *up_left_skylight, *up_left_blocklight;
PyObject *up_right_skylight, *up_right_blocklight;
/* light color image, loaded if color_light is True */
PyObject *lightcolor;
/* can be overridden in derived rendermodes to control lighting
arguments are data, skylight, blocklight, return RGB */
void (*calculate_light_color)(void *, unsigned char, unsigned char, unsigned char *, unsigned char *, unsigned char *);
/* can be set to 0 in derived modes to indicate that lighting the chunk
* sides is actually important. Right now, this is used in cave mode
*/
int skip_sides;
float strength;
int color;
int night;
} RenderPrimitiveLighting;
/* figures out the color from a given skylight and blocklight,
used in lighting calculations */
static void
@@ -35,7 +63,7 @@ static void
calculate_light_color_fancy(void *data,
unsigned char skylight, unsigned char blocklight,
unsigned char *r, unsigned char *g, unsigned char *b) {
RenderModeLighting *mode = (RenderModeLighting *)(data);
RenderPrimitiveLighting *mode = (RenderPrimitiveLighting *)(data);
unsigned int index;
PyObject *color;
@@ -70,7 +98,7 @@ static void
calculate_light_color_fancy_night(void *data,
unsigned char skylight, unsigned char blocklight,
unsigned char *r, unsigned char *g, unsigned char *b) {
RenderModeLighting *mode = (RenderModeLighting *)(data);
RenderPrimitiveLighting *mode = (RenderPrimitiveLighting *)(data);
unsigned int index;
PyObject *color;
@@ -95,7 +123,7 @@ calculate_light_color_fancy_night(void *data,
*/
inline unsigned char
estimate_blocklevel(RenderModeLighting *self, RenderState *state,
estimate_blocklevel(RenderPrimitiveLighting *self, RenderState *state,
int x, int y, int z, int *authoratative) {
/* placeholders for later data arrays, coordinates */
@@ -185,7 +213,7 @@ estimate_blocklevel(RenderModeLighting *self, RenderState *state,
}
inline void
get_lighting_color(RenderModeLighting *self, RenderState *state,
get_lighting_color(RenderPrimitiveLighting *self, RenderState *state,
int x, int y, int z,
unsigned char *r, unsigned char *g, unsigned char *b) {
@@ -273,7 +301,10 @@ get_lighting_color(RenderModeLighting *self, RenderState *state,
if (block == 10 || block == 11) {
/* lava blocks should always be lit! */
return 0.0f;
*r = 255;
*g = 255;
*b = 255;
return;
}
self->calculate_light_color(self, MIN(skylevel, 15), MIN(blocklevel, 15), r, g, b);
@@ -281,7 +312,7 @@ get_lighting_color(RenderModeLighting *self, RenderState *state,
/* does per-face occlusion checking for do_shading_with_mask */
inline int
rendermode_lighting_is_face_occluded(RenderState *state, int skip_sides, int x, int y, int z) {
lighting_is_face_occluded(RenderState *state, int skip_sides, int x, int y, int z) {
/* first, check for occlusion if the block is in the local chunk */
if (x >= 0 && x < 16 && y >= 0 && y < 16 && z >= 0 && z < 128) {
unsigned char block = getArrayByte3D(state->blocks, x, y, z);
@@ -315,52 +346,41 @@ rendermode_lighting_is_face_occluded(RenderState *state, int skip_sides, int x,
/* shades the drawn block with the given facemask, based on the
lighting results from (x, y, z) */
static inline void
do_shading_with_mask(RenderModeLighting *self, RenderState *state,
do_shading_with_mask(RenderPrimitiveLighting *self, RenderState *state,
int x, int y, int z, PyObject *mask) {
unsigned char r, g, b;
float comp_shade_strength;
float comp_strength;
/* check occlusion */
if (rendermode_lighting_is_face_occluded(state, self->skip_sides, x, y, z))
if (lighting_is_face_occluded(state, self->skip_sides, x, y, z))
return;
get_lighting_color(self, state, x, y, z, &r, &g, &b);
comp_shade_strength = 1.0 - self->shade_strength;
comp_strength = 1.0 - self->strength;
r += (255 - r) * comp_shade_strength;
g += (255 - g) * comp_shade_strength;
b += (255 - b) * comp_shade_strength;
r += (255 - r) * comp_strength;
g += (255 - g) * comp_strength;
b += (255 - b) * comp_strength;
tint_with_mask(state->img, r, g, b, 255, mask, state->imgx, state->imgy, 0, 0);
}
static int
rendermode_lighting_start(void *data, RenderState *state, PyObject *options) {
RenderModeLighting* self;
lighting_start(void *data, RenderState *state, PyObject *support) {
RenderPrimitiveLighting* self;
self = (RenderPrimitiveLighting *)data;
/* first, chain up */
int ret = rendermode_normal.start(data, state, options);
if (ret != 0)
return ret;
/* don't skip sides by default */
self->skip_sides = 0;
self = (RenderModeLighting *)data;
/* skip sides by default */
self->skip_sides = 1;
self->shade_strength = 1.0;
if (!render_mode_parse_option(options, "shade_strength", "f", &(self->shade_strength)))
if (!render_mode_parse_option(support, "strength", "f", &(self->strength)))
return 1;
if (!render_mode_parse_option(support, "night", "i", &(self->night)))
return 1;
if (!render_mode_parse_option(support, "color", "i", &(self->color)))
return 1;
self->night = 0;
if (!render_mode_parse_option(options, "night", "i", &(self->night)))
return 1;
self->color_light = 0;
if (!render_mode_parse_option(options, "color_light", "i", &(self->color_light)))
return 1;
self->facemasks_py = PyObject_GetAttrString(state->support, "facemasks");
self->facemasks_py = PyObject_GetAttrString(support, "facemasks");
// borrowed references, don't need to be decref'd
self->facemasks[0] = PyTuple_GetItem(self->facemasks_py, 0);
self->facemasks[1] = PyTuple_GetItem(self->facemasks_py, 1);
@@ -383,12 +403,12 @@ rendermode_lighting_start(void *data, RenderState *state, PyObject *options) {
self->calculate_light_color = calculate_light_color;
}
if (self->color_light) {
self->lightcolor = PyObject_CallMethod(state->textures, "loadLightColor", "");
if (self->color) {
self->lightcolor = PyObject_CallMethod(state->textures, "load_light_color", "");
if (self->lightcolor == Py_None) {
Py_DECREF(self->lightcolor);
self->lightcolor = NULL;
self->color_light = 0;
self->color = 0;
} else {
if (self->night) {
self->calculate_light_color = calculate_light_color_fancy_night;
@@ -404,8 +424,8 @@ rendermode_lighting_start(void *data, RenderState *state, PyObject *options) {
}
static void
rendermode_lighting_finish(void *data, RenderState *state) {
RenderModeLighting *self = (RenderModeLighting *)data;
lighting_finish(void *data, RenderState *state) {
RenderPrimitiveLighting *self = (RenderPrimitiveLighting *)data;
Py_DECREF(self->facemasks_py);
@@ -419,32 +439,14 @@ rendermode_lighting_finish(void *data, RenderState *state) {
Py_DECREF(self->up_left_blocklight);
Py_DECREF(self->up_right_skylight);
Py_DECREF(self->up_right_blocklight);
/* now chain up */
rendermode_normal.finish(data, state);
}
static int
rendermode_lighting_occluded(void *data, RenderState *state, int x, int y, int z) {
/* no special occlusion here */
return rendermode_normal.occluded(data, state, x, y, z);
}
static int
rendermode_lighting_hidden(void *data, RenderState *state, int x, int y, int z) {
/* no special hiding here */
return rendermode_normal.hidden(data, state, x, y, z);
}
static void
rendermode_lighting_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
RenderModeLighting* self;
lighting_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light) {
RenderPrimitiveLighting* self;
int x, y, z;
/* first, chain up */
rendermode_normal.draw(data, state, src, mask, mask_light);
self = (RenderModeLighting *)data;
self = (RenderPrimitiveLighting *)data;
x = state->x, y = state->y, z = state->z;
if ((state->block == 9) || (state->block == 79)) { /* special case for water and ice */
@@ -473,22 +475,11 @@ rendermode_lighting_draw(void *data, RenderState *state, PyObject *src, PyObject
}
}
const RenderModeOption rendermode_lighting_options[] = {
{"shade_strength", "how dark to make the shadows, from 0.0 to 1.0 (default: 1.0)"},
{"night", "whether to use nighttime skylight settings (default: False)"},
{"color_light", "whether to use colored light (default: False)"},
{NULL, NULL}
};
RenderModeInterface rendermode_lighting = {
"lighting", "Lighting",
"draw shadows from the lighting data",
rendermode_lighting_options,
&rendermode_normal,
sizeof(RenderModeLighting),
rendermode_lighting_start,
rendermode_lighting_finish,
rendermode_lighting_occluded,
rendermode_lighting_hidden,
rendermode_lighting_draw,
RenderPrimitiveInterface primitive_lighting = {
"lighting", sizeof(RenderPrimitiveLighting),
lighting_start,
lighting_finish,
NULL,
NULL,
lighting_draw,
};

33
overviewer_core/src/rendermodes.h
View File

@@ -117,39 +117,6 @@ typedef struct {
} RenderModeOverlay;
extern RenderModeInterface rendermode_overlay;
/* LIGHTING */
typedef struct {
/* inherits from normal render mode */
RenderModeNormal parent;
PyObject *facemasks_py;
PyObject *facemasks[3];
/* extra data, loaded off the chunk class */
PyObject *skylight, *blocklight;
PyObject *left_skylight, *left_blocklight;
PyObject *right_skylight, *right_blocklight;
PyObject *up_left_skylight, *up_left_blocklight;
PyObject *up_right_skylight, *up_right_blocklight;
/* light color image, loaded if color_light is True */
PyObject *lightcolor;
/* can be overridden in derived rendermodes to control lighting
arguments are data, skylight, blocklight, return RGB */
void (*calculate_light_color)(void *, unsigned char, unsigned char, unsigned char *, unsigned char *, unsigned char *);
/* can be set to 0 in derived modes to indicate that lighting the chunk
* sides is actually important. Right now, this is used in cave mode
*/
int skip_sides;
float shade_strength;
int color_light;
int night;
} RenderModeLighting;
extern RenderModeInterface rendermode_lighting;
/* exposed so it can be used in other per-face occlusion checks */
int rendermode_lighting_is_face_occluded(RenderState *state, int skip_sides, int x, int y, int z);

35
overviewer_core/textures.py
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@@ -56,8 +56,11 @@ class Textures(object):
def __getstate__(self):
# we must get rid of the huge image lists, and other images
attributes = self.__dict__.copy()
for attr in ['terrain_images', 'blockmap', 'biome_grass_texture', 'watertexture', 'lavatexture']:
for attr in ['terrain_images', 'blockmap', 'biome_grass_texture', 'watertexture', 'lavatexture', 'lightcolor']:
try:
del attributes[attr]
except KeyError:
pass
return attributes
def __setstate__(self, attrs):
# regenerate textures, if needed
@@ -246,6 +249,18 @@ class Textures(object):
self.lavatexture = lavatexture
return lavatexture
def load_light_color(self):
"""Helper function to load the light color texture."""
if hasattr(self, "lightcolor"):
return self.lightcolor
try:
lightcolor = list(_load_image("light_normal.png").getdata())
except Exception:
logging.warning("Light color image could not be found.")
lightcolor = None
self.lightcolor = lightcolor
return lightcolor
def _split_terrain(self, terrain):
"""Builds and returns a length 256 array of each 16x16 chunk
of texture.
@@ -650,24 +665,6 @@ def getBiomeData(worlddir, chunkX, chunkY):
currentBiomeData = data
return data
##
## Color Light
##
lightcolor = None
lightcolor_checked = False
def loadLightColor():
global lightcolor, lightcolor_checked
if not lightcolor_checked:
lightcolor_checked = True
try:
lightcolor = list(_load_image("light_normal.png").getdata())
except Exception:
logging.warning("Light color image could not be found.")
lightcolor = None
return lightcolor
##
## The other big one: @material and associated framework
##