def gourad(render, **kwargs):
u, v, w = kwargs['baryCoords']
ta, tb, tc = kwargs['texCoords']
na, nb, nc = kwargs['normals']
b, g, r = kwargs['color']
b /= 255
g /= 255
r /= 255
if render.active_texture:
tx = ta.x * u + tb.x * v + tc.x * w
ty = ta.y * u + tb.y * v + tc.y * w
texColor = render.active_texture.getColor(tx, ty)
b *= texColor[0] / 255
g *= texColor[1] / 255
r *= texColor[2] / 255
nx = na[0] * u + nb[0] * v + nc[0] * w
ny = na[1] * u + nb[1] * v + nc[1] * w
nz = na[2] * u + nb[2] * v + nc[2] * w
normal = V3(nx, ny, nz)
intesity = dot(normal, render.light)
b *= intesity
g *= intesity
r *= intesity
if intesity > 0:
return r, g, b
else:
return 0, 0, 0
def toon(render, **kwargs):
u, v, w = kwargs['baryCoords']
ta, tb, tc = kwargs['texCoords']
na, nb, nc = kwargs['normals']
b, g, r = kwargs['color']
b /= 255
g /= 255
r /= 255
if render.active_texture:
tx = ta.x * u + tb.x * v + tc.x * w
ty = ta.y * u + tb.y * v + tc.y * w
texColor = render.active_texture.getColor(tx, ty)
b *= texColor[0] / 255
g *= texColor[1] / 255
r *= texColor[2] / 255
nx = na[0] * u + nb[0] * v + nc[0] * w
ny = na[1] * u + nb[1] * v + nc[1] * w
nz = na[2] * u + nb[2] * v + nc[2] * w
normal = V3(nx, ny, nz)
intesity = dot(normal, render.light)
if intesity > 0 and intesity < 0.2:
b *= 0.2
g *= 0.2
r *= 0.2
elif intesity >= 0.2 and intesity < 0.4:
b *= 0.4
g *= 0.4
r *= 0.4
elif intesity >= 0.4 and intesity < 0.6:
b *= 0.6
g *= 0.6
r *= 0.6
elif intesity >= 0.6 and intesity < 0.8:
b *= 0.8
g *= 0.8
r *= 0.8
elif intesity >= 0.8 and intesity < 1:
b *= 1
g *= 1
r *= 1
if intesity > 0:
return r, g, b
else:
return 0, 0, 0
def zBufferFade(render, **kwargs):
u, v, w = kwargs['baryCoords']
ta, tb, tc = kwargs['texCoords']
na, nb, nc = kwargs['normals']
b, g, r = kwargs['color']
pixel = kwargs['pixel']
xyZbuffer = pixel.z
b /= 255
g /= 255
r /= 255
if render.active_texture:
tx = ta.x * u + tb.x * v + tc.x * w
ty = ta.y * u + tb.y * v + tc.y * w
texColor = render.active_texture.getColor(tx, ty)
b *= texColor[0] / 255
g *= texColor[1] / 255
r *= texColor[2] / 255
nx = na[0] * u + nb[0] * v + nc[0] * w
ny = na[1] * u + nb[1] * v + nc[1] * w
nz = na[2] * u + nb[2] * v + nc[2] * w
normal = V3(nx, ny, nz)
intesity = dot(normal, render.light)
b *= xyZbuffer
g *= xyZbuffer
r *= xyZbuffer
if xyZbuffer >= 0:
return r, g, b
else:
return 0, 0, 0
def normalMap(render, **kwargs):
A, B, C = kwargs['verts']
u, v, w = kwargs['baryCoords']
ta, tb, tc = kwargs['texCoords']
na, nb, nc = kwargs['normals']
b, g, r = kwargs['color']
b /= 255
g /= 255
r /= 255
tx = ta.x * u + tb.x * v + tc.x * w
ty = ta.y * u + tb.y * v + tc.y * w
if render.active_texture:
texColor = render.active_texture.getColor(tx, ty)
b *= texColor[0] / 255
g *= texColor[1] / 255
r *= texColor[2] / 255
nx = na[0] * u + nb[0] * v + nc[0] * w
ny = na[1] * u + nb[1] * v + nc[1] * w
nz = na[2] * u + nb[2] * v + nc[2] * w
normal = V3(nx, ny, nz)
if render.active_normalMap:
texNormal = render.active_normalMap.getColor(tx, ty)
texNormal = V3((texNormal[2] / 255) * 2 - 1,
(texNormal[1] / 255) * 2 - 1,
(texNormal[0] / 255) * 2 - 1)
texNormal = norm(texNormal)
edge1 = sub(B, A)
edge2 = sub(C, A)
deltaUV1 = subV2(tb, ta)
deltaUV2 = subV2(tc, ta)
tangent = [0, 0, 0]
f = 1 / (deltaUV1[0] * deltaUV2[1] - deltaUV2[0] * deltaUV1[1])
tangent[0] = f * (deltaUV2[1] * edge1[0] - deltaUV1[1] * edge2[0])
tangent[1] = f * (deltaUV2[1] * edge1[1] - deltaUV1[1] * edge2[1])
tangent[2] = f * (deltaUV2[1] * edge1[2] - deltaUV1[1] * edge2[2])
tangent = V3(tangent[0], tangent[1], tangent[2])
tangent = sub(tangent, mul(normal, dot(tangent, normal)))
tangent = norm(tangent)
bitangent = cross(normal, tangent)
bitangent = norm(bitangent)
#para convertir de espacio global a espacio tangente
tangentMatrix = [[tangent[0], bitangent[0], normal[0]],
[tangent[1], bitangent[1], normal[1]],
[tangent[2], bitangent[2], normal[2]]]
light = render.light
light = matXvect(tangentMatrix, light)
light = V3(light[0][0], light[0][1], light[0][2])
light = norm(light)
intensity = dot(texNormal, light) #v3
else:
intensity = dot(normal, render.light)
b *= intensity
g *= intensity
r *= intensity
if intensity > 0:
return r, g, b
else:
return 0, 0, 0