def mapSceneLighting(scn, progressCallback = None):
"""
Create a lightmap for a scene with one or multiple lights.
"""
def progress(prog):
if (progressCallback is not None):
progressCallback(prog)
else:
pass
humanRot = gui3d.app.selectedHuman.getRotation()
def calcLightPos(light):
return tuple(
matrix.transform3(
matrix.rotx(-humanRot[0]) *
matrix.roty(-humanRot[1]) *
matrix.rotz(-humanRot[2]),
light.position))
lnum = float(len(scn.lights))
if (lnum>0): # Add up all the lightmaps.
lmap = mapLighting(calcLightPos(scn.lights[0]),
lambda p: progress(p/lnum)).data
i = 1.0
for light in scn.lights[1:]:
lmap = image_operations.mixData(
lmap, mapLighting(calcLightPos(light),
lambda p: progress((i+p)/lnum)).data,1,1)
i += 1.0
return mh.Image(data = image_operations.normalizeData(lmap))
else: # If the scene has no lights, return an empty lightmap.
return mh.Image(data = np.zeros((1024, 1024, 1), dtype=np.uint8))
def mapSceneLighting(scn, object=None, res=(1024, 1024), border=1):
"""
Create a lightmap for a scene with one or multiple lights.
This happens by adding the lightmaps produced by each light,
plus the scene ambience.
"""
if object is None:
object = G.app.selectedHuman
objrot = G.app.modelCamera.getRotation()
def calcLightPos(light):
return tuple(
matrix.transform3(
matrix.rotx(-objrot[0]) * matrix.roty(-objrot[1]) *
matrix.rotz(-objrot[2]), light.position))
def getLightmap(light):
lmap = mapLighting(calcLightPos(light), object.mesh, res, border)
return image_operations.Image(data=lmap.data * light.color.values)
progress = Progress(1 + len(scn.lights))
# Ambience
lmap = image_operations.colorAsImage(
(scn.environment.ambience * object.material.diffuseColor).values, None,
*res)
if (object.material.shaderConfig['ambientOcclusion']
and not object.material.aoMapTexture is None):
aomap = image_operations.Image(data=object.material.aoMapTexture)
aomap = image_operations.resized(aomap, *lmap.size)
lmap = image_operations.multiply(
lmap,
image_operations.mix(aomap, image_operations.getWhite(lmap),
object.material.aoMapIntensity))
progress.step()
# Lights
if (scn.lights):
amb = lmap
lmap = getLightmap(scn.lights[0]).data
progress.step()
for light in scn.lights[1:]:
lmap = image_operations.mixData(lmap,
getLightmap(light).data, 1, 1)
progress.step()
lmap = image_operations.Image(data=lmap)
if len(scn.lights) > 1:
lmap = image_operations.normalize(lmap)
# Ambience calculation function: lmap = lmap + (1 - lmap) * amb
lmap = image_operations.mix(
lmap, image_operations.multiply(image_operations.invert(lmap),
amb), 1, 1)
return lmap
def mapSceneLighting(scn, object = None, res = (1024, 1024), border = 1):
"""
Create a lightmap for a scene with one or multiple lights.
This happens by adding the lightmaps produced by each light,
plus the scene ambience.
"""
if object is None:
object = G.app.selectedHuman
objrot = G.app.modelCamera.getRotation()
def calcLightPos(light):
return tuple(
matrix.transform3(
matrix.rotx(-objrot[0]) *
matrix.roty(-objrot[1]) *
matrix.rotz(-objrot[2]),
light.position))
def getLightmap(light):
lmap = mapLighting(calcLightPos(light), object.mesh, res, border)
return image_operations.Image(data = lmap.data * light.color.values)
progress = Progress(1 + len(scn.lights))
# Ambience
lmap = image_operations.colorAsImage(
(scn.environment.ambience * object.material.diffuseColor).values, None, *res)
if (object.material.shaderConfig['ambientOcclusion']
and not object.material.aoMapTexture is None):
aomap = image_operations.Image(data = object.material.aoMapTexture)
aomap = image_operations.resized(aomap, *lmap.size)
lmap = image_operations.multiply(lmap, image_operations.mix(
aomap, image_operations.getWhite(lmap), object.material.aoMapIntensity))
progress.step()
# Lights
if scn.lights:
amb = lmap
lmap = getLightmap(scn.lights[0]).data
progress.step()
for light in scn.lights[1:]:
lmap = image_operations.mixData(lmap, getLightmap(light).data, 1, 1)
progress.step()
lmap = image_operations.Image(data = lmap)
if len(scn.lights) > 1:
lmap = image_operations.normalize(lmap)
# Ambience calculation function: lmap = lmap + (1 - lmap) * amb
lmap = image_operations.mix(
lmap, image_operations.multiply(
image_operations.invert(lmap), amb), 1, 1)
return lmap
