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WIP_stencil_shared_vision.py
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import os
from math import cos, sin, pi
import numpy
from OpenGL.GL import *
from OpenGL.arrays.arraydatatype import ArrayDatatype
from OpenGL.GL.EXT import texture_compression_s3tc
import viewport
import perf_overlay_lib
_DEBUGGING = False
_SHADER_DIR = os.path.abspath(
os.path.join(__file__, "..", "shaders")
)
_DRAW_SHARED_VISION_PATH = os.path.join(
_SHADER_DIR, "stencil_shared_vision_generate_shadow.vert"
)
_DRAW_SHARED_VISION_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER=_DRAW_SHARED_VISION_PATH
)
_DRAW_LINES_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "shared_vision_draw_lines.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "shared_vision_draw_lines.frag")
)
_CLEAR_LINES_MAPS_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_clear.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_clear.frag")
)
_DRAW_LINES_MAPS_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_gen.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_gen.frag")
)
_DRAW_LINES_MAPS_ONE_PASS_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_gen_one_pass.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_gen_one_pass.frag")
)
_DRAW_LIGHTS_BBOX_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_bbox.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_bbox.frag")
)
_DRAW_LIGHTMAP_VIS_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "2d_linemap_plane_blocking_vis_surface.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "constant_col.frag")
)
_DRAW_BAKED_POINTLIGHTS_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "draw_full_screen.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "shared_vision_draw_baked_point_lights.frag")
)
_BAKE_POINTLIGHTS_PROGRAM = viewport.make_permutation_program(
_DEBUGGING,
GL_VERTEX_SHADER = os.path.join(_SHADER_DIR, "shared_vision_bake_point_lights.vert"),
GL_FRAGMENT_SHADER = os.path.join(_SHADER_DIR, "shared_vision_bake_point_lights.frag")
)
DRAW_STENCIL_VERTEX_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(location = 0) uniform float layerId;
void main()
{
gl_Position = vec4(uv, layerId, 1.0);
}
"""
DRAW_DEBUGOFFSET_STENCIL_VERTEX_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(location = 0) uniform float layerId;
layout(location = 1) uniform vec2 debugOffset;
void main()
{
gl_Position = vec4(uv+debugOffset, layerId, 1.0);
}
"""
DRAW_SHAPE_VERTEX_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(location = 0) out vec2 outUv;
layout(location = 0) uniform float layerId;
void main()
{
outUv = uv * 0.5 + 0.5;
gl_Position = vec4(uv, layerId, 1.0);
}
"""
DRAW_SHAPE_FRAGMENT_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(location = 0) out vec4 outCol;
layout(location = 1) uniform vec4 col;
void main()
{
outCol = col;
}
"""
DRAW_TEXTURE_FRAGMENT_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(location = 0) out vec4 outCol;
layout(binding = 0) uniform sampler2DArray inputTexture;
void main()
{
outCol = texture(inputTexture, vec3(uv, 11.));
}
"""
DRAW_FOW_INIT_VERTEX_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(location = 0) out vec2 outUv;
void main()
{
outUv = uv * 0.5 + 0.5;
gl_Position = vec4(uv, 0., 1.0);
}
"""
DRAW_FOW_INIT_FRAGMENT_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(binding = 0) uniform sampler2D inputTexture;
void main()
{
if(texture(inputTexture, uv).x < 0.5) { discard; }
}
"""
DRAW_FOW_HISTORY_FRAGMENT_SHADER_SOURCE = """
#version 460 core
layout(location = 0) in vec2 uv;
layout(location = 0) out float outCol;
void main()
{
outCol = 1.0;
}
"""
def generate_bw_bc1_block(
a, b, c, d,
e, f, g, h,
i, j, k, l,
m, n, o, p):
# value = [0, 3] 0 = black, 3 = white
# https://docs.microsoft.com/en-us/windows/win32/direct3d10/d3d10-graphics-programming-guide-resources-block-compression
# https://www.khronos.org/opengl/wiki/S3_Texture_Compression#:~:text=A%20DXT1%2Dcompressed%20image%20is,internal%20format%20of%20the%20image.
bits = 0
for x in (
d, c, b, a,
h, g, f, e,
l, k, j, i,
p, o, n, m
):
bits <<= 2
bits |= x
return numpy.array([
0xffff0000, # colour 1, 2
# bits,
bits
], dtype=numpy.uint32)
def generate_fog_of_war_texture():
# https://technology.riotgames.com/sites/default/files/fow_diagram.png
# A B
# C D
# Corresponds to the following bit address 0bABCD
# Output texture is BC1 64x4 | 4x64 \ 4x4x16
B = 0
W = 1
G = 2
m0000 = generate_bw_bc1_block(
B, B, B, B,
B, B, B, B,
B, B, B, B,
B, B, B, B,
)
m0001 = generate_bw_bc1_block(
B, B, B, B,
B, B, B, B,
B, B, B, G,
B, B, G, W,
)
m0010 = generate_bw_bc1_block(
B, B, B, B,
B, B, B, B,
G, B, B, B,
W, G, B, B,
)
m0011 = generate_bw_bc1_block(
B, B, B, B,
B, B, B, B,
W, W, W, W,
W, W, W, W,
)
m0100 = generate_bw_bc1_block(
B, B, G, W,
B, B, B, G,
B, B, B, B,
B, B, B, B,
)
m0101 = generate_bw_bc1_block(
B, B, W, W,
B, B, W, W,
B, B, W, W,
B, B, W, W,
)
m0110 = generate_bw_bc1_block(
B, B, G, W,
B, B, B, G,
G, B, B, B,
W, G, B, B,
)
m0111 = generate_bw_bc1_block(
W, W, W, W,
W, W, W, W,
W, W, W, G,
W, W, G, B,
)
m1000 = generate_bw_bc1_block(
W, G, B, B,
G, B, B, B,
B, B, B, B,
B, B, B, B,
)
m1001 = generate_bw_bc1_block(
W, G, B, B,
G, B, B, B,
B, B, B, G,
B, B, G, W,
)
m1010 = generate_bw_bc1_block(
W, W, B, B,
W, W, B, B,
W, W, B, B,
W, W, B, B,
)
m1011 = generate_bw_bc1_block(
W, W, G, B,
W, W, W, G,
W, W, W, W,
W, W, W, W,
)
m1100 = generate_bw_bc1_block(
W, W, W, W,
W, W, W, W,
B, B, B, B,
B, B, B, B,
)
m1101 = generate_bw_bc1_block(
W, W, W, W,
W, W, W, W,
G, W, W, W,
B, G, W, W,
)
m1110 = generate_bw_bc1_block(
W, W, W, W,
W, W, W, W,
W, W, W, G,
W, W, G, B,
)
m1111 = generate_bw_bc1_block(
W, W, W, W,
W, W, W, W,
W, W, W, W,
W, W, W, W,
)
return numpy.concatenate((
m0000,
m0001,
m0010,
m0011,
m0100,
m0101,
m0110,
m0111,
m1000,
m1001,
m1010,
m1011,
m1100,
m1101,
m1110,
m1111,
)).tobytes()
LINEMAP_RESOLUTION = 512
FOG_OF_WAR_RESOLUTION = 512
BAKED_LIGHTING_RESOLUTION = 1024
class Renderer(object):
def __init__(self):
self.window = viewport.Window(512, 512)
self.window.on_init = self._init
self.window.on_draw = self._draw
self.window.on_resize = self._resize
self.window.on_drag = self._drag
self.window.on_keypress = self._keypress
self._draw_lines = False
self._two_pass_lightmaps = True
self._fow_debug_offset = [0, 0]
self.timer_overlay = perf_overlay_lib.TimerSamples256Overlay()
self._line_maps_baked = False
self._lights_baked = False
self._written_fov = False
def run(self):
self.window.run()
def _init(self, wnd):
glClearColor(0.0, 0.0, 0.0, 0.0)
glEnable(GL_DEPTH_TEST)
glEnable(GL_STENCIL_TEST)
glDisable(GL_CULL_FACE)
fow_bytes = generate_fog_of_war_texture()
self._fow_image_ptr = ctypes.c_int()
glGenTextures(1, self._fow_image_ptr)
glBindTexture(GL_TEXTURE_2D_ARRAY, self._fow_image_ptr.value)
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE)
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE)
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glCompressedTexImage3D(
GL_TEXTURE_2D_ARRAY,
0,
texture_compression_s3tc.GL_COMPRESSED_RGBA_S3TC_DXT1_EXT,
4,
4,
16,
0,
# len(fow_bytes), # pyopengl omits this
fow_bytes,
)
glBindTexture(GL_TEXTURE_2D_ARRAY, 0)
# Point texture object and depth framebuffer setup
point_lights = numpy.array([
[[-0.6957199824877, 0.7767946228292, 0.3, 1.0], [1.0, 0.0, 0.0, 0.0]],
[[-0.5137166033324, 0.6350419909871, 0.3, 1.0], [0.0, 1.0, 0.0, 0.0]],
[[-0.5959681304506, 0.2675351676927, 0.3, 1.0], [0.0, 0.0, 1.0, 0.0]],
], dtype=numpy.float32)
# Stress test
if False:
import random
point_lights = numpy.array([
[
[random.random() * 2 - 1, random.random() * 2 - 1, random.random() * 0.3, random.random()],
[random.random() * 0.05, random.random() * 0.05, random.random() * 0.05, random.random()]
]
for _ in range(10000)
], dtype=numpy.float32)
self.num_point_lights = len(point_lights)
self._point_lights_ptr = ctypes.c_int()
glCreateTextures(GL_TEXTURE_2D, 1, self._point_lights_ptr)
self._point_lights = self._point_lights_ptr.value
glTextureParameteri(self._point_lights, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE)
glTextureParameteri(self._point_lights, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE)
glTextureParameteri(self._point_lights, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
glTextureParameteri(self._point_lights, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTextureStorage2D(self._point_lights, 1, GL_RGBA16F, 2, self.num_point_lights)
glTextureSubImage2D(
self._point_lights, 0, 0, 0,
2, self.num_point_lights,
GL_RGBA, GL_FLOAT,
point_lights
)
self._point_lights_shadow_plane = viewport.FramebufferTarget(
GL_RGBA16F,
True,
custom_texture_settings={
GL_TEXTURE_WRAP_S: GL_REPEAT,
GL_TEXTURE_WRAP_T: GL_CLAMP_TO_EDGE,
GL_TEXTURE_MIN_FILTER: GL_LINEAR,
GL_TEXTURE_MAG_FILTER: GL_LINEAR,
}
);
self._point_light_shadow_depth = viewport.FramebufferTarget(
GL_DEPTH_COMPONENT32F,
True,
# PCF friendly settings
custom_texture_settings={
GL_TEXTURE_WRAP_S: GL_REPEAT,
GL_TEXTURE_WRAP_T: GL_CLAMP_TO_EDGE,
GL_TEXTURE_MIN_FILTER: GL_LINEAR,
GL_TEXTURE_MAG_FILTER: GL_LINEAR,
GL_TEXTURE_COMPARE_FUNC: GL_LEQUAL,
GL_TEXTURE_COMPARE_MODE: GL_COMPARE_REF_TO_TEXTURE,
}
)
self._point_light_shadow_fb = viewport.Framebuffer(
(self._point_lights_shadow_plane, self._point_light_shadow_depth,),
LINEMAP_RESOLUTION,
self.num_point_lights
)
self.players =[
[-0.704384548584,0.8338315304911],
[-0.2814942390868,0.135869236065],
[0.3361222420398,-0.7242188225105],
[0.7372218132636,0.3643838825913],
[-0.719587913318,-0.5339193806787],
[-0.5247321451927,0.4964138589975],
[-0.1270128376493,0.208134092456]
]
lines_data = numpy.array([
-0.8, 0.8, -0.8, 0.6,
-0.8, 0.6, -0.8, 0.4,
-0.8, 0.4, -0.6, 0.2,
-0.6, 0.6, -0.6, 0.4,
-0.6, 0.4, -0.4, 0.2,
-0.6, 0.4, -0.4550845979179728, 0.4041195074892856,
-0.4, 0.6, -0.4550845979179728, 0.4041195074892856,
-0.6, 0.8, -0.3523147896531834, 0.7417917346450221,
-0.3523147896531834, 0.7417917346450221, -0.16512692459945985, 0.8372208423194695,
-0.16512692459945985, 0.8372208423194695, 0.11014934753836887, 0.8372208423194695,
-0.6, 0.8, -0.6000000000000001, 1.0,
-0.8, 0.8, -0.8, 1.0,
-0.6, 0.2, -0.6899870168089199, 0.07378798092389112,
-0.6899870168089199, 0.07378798092389112, -0.8, 0.2,
-0.8, 0.2, -0.887746417933024, 0.35356291088806213,
-0.887746417933024, 0.35356291088806213, -0.880247239549394, 0.9309996464275795,
-0.880247239549394, 0.9309996464275795, -0.930241762106928, 0.9459980031948397,
-0.930241762106928, 0.9459980031948397, -0.9477398450020649, 0.34856345863230875,
-0.9477398450020649, 0.34856345863230875, -0.9252423098511745, 0.17608235580881654,
-0.9252423098511745, 0.17608235580881654, -0.7552609331555589, 0.00860070524107772,
-0.7552609331555589, 0.00860070524107772, -0.83775189537549, -0.12138505340851061,
-0.83775189537549, -0.12138505340851061, -0.8227535386082299, -0.491344520334262,
-0.8227535386082299, -0.491344520334262, -0.9269466685747265, -0.5956512742156619,
-0.9269466685747265, -0.5956512742156619, -0.9201292336805172, -0.6910953627345904,
-0.9201292336805172, -0.6910953627345904, -0.797415405584752, -0.5592916214465462,
-0.797415405584752, -0.5592916214465462, -0.6474318379121501, -0.7365449286959849,
0.5434601240897526, 0.16422840418542378, 0.5456683846785265, 0.3320562089322359,
-0.6474318379121501, -0.7365449286959849, -0.8, -0.8,
-0.8, -0.8, -0.9396871437734609, -0.9341363891990299,
-0.9396871437734609, -0.9341363891990299, -0.8434533432399988, -0.9549436974224811,
-0.8434533432399988, -0.9549436974224811, -0.7628250238741252, -0.8483062427772933,
-0.7628250238741252, -0.8483062427772933, -0.6, -0.8,
-0.6, -0.8, -0.45591722757821923, -0.8769162915845389,
-0.45591722757821923, -0.8769162915845389, -0.1047939013074794, -0.8743153780566074,
-0.1047939013074794, -0.8743153780566074, -0.12039938247506783, -0.9367373027269612,
-0.12039938247506783, -0.9367373027269612, -0.026766495469537206, -0.9653473515342067,
-0.026766495469537206, -0.9653473515342067, 0.0, -0.8795172051124702,
0.0, -0.8795172051124702, -0.05797745780471408, -0.7546733557717626,
-0.05797745780471408, -0.7546733557717626, -0.4273071787709738, -0.7702788369393511,
-0.4273071787709738, -0.7702788369393511, -0.627577520421692, -0.5804121494003581,
-0.627577520421692, -0.5804121494003581, -0.37268799468441427, -0.43736190536413067,
-0.37268799468441427, -0.43736190536413067, -0.2244359235923241, -0.46597195417137616,
-0.2244359235923241, -0.46597195417137616, -0.3830916487961399, -0.5622057547048382,
-0.3830916487961399, -0.5622057547048382, -0.3752889082123457, -0.6506368146545062,
-0.3752889082123457, -0.6506368146545062, -0.3102660700140605, -0.6714441228779575,
-0.3102660700140605, -0.6714441228779575, -0.30246332943026627, -0.5856139764562209,
-0.30246332943026627, -0.5856139764562209, -0.011161014301948767, -0.4789765218110332,
-0.011161014301948767, -0.4789765218110332, 0.0, -0.4,
0.0, -0.4, -0.3440779458771688, -0.31771988307928584,
-0.3440779458771688, -0.31771988307928584, -0.6613893962848003, -0.48938017592275884,
-0.6613893962848003, -0.48938017592275884, -0.6899994450920458, -0.12265136848443012,
-0.6899994450920458, -0.12265136848443012, -0.5235409793044358, 0.13743998430871082,
-0.5235409793044358, 0.13743998430871082, -0.3960962164357969, 0.03340344319145445,
-0.3960962164357969, 0.03340344319145445, -0.5729583363351325, -0.1486605037637442,
-0.5729583363351325, -0.1486605037637442, -0.5651555957513383, -0.2839080072161775,
-0.5651555957513383, -0.2839080072161775, -0.48972910344132753, -0.29691257485583455,
-0.48972910344132753, -0.29691257485583455, -0.4689217952178763, -0.16426598493133265,
-0.4689217952178763, -0.16426598493133265, -0.3180688105978547, -0.013413000311310921,
-0.3180688105978547, -0.013413000311310921, -0.09178933366782237, -0.1746696390430583,
-0.09178933366782237, -0.1746696390430583, -0.17761948008955877, -0.2344906501854807,
-0.17761948008955877, -0.2344906501854807, -0.021564668413674392, -0.35153175894239413,
-0.021564668413674392, -0.35153175894239413, 0.08507278623151326, -0.3411281048306685,
0.08507278623151326, -0.3411281048306685, -0.01636284135781158, -0.2500961313530692,
-0.01636284135781158, -0.2500961313530692, 0.09547644034323889, -0.1746696390430583,
0.09547644034323889, -0.1746696390430583, 0.10848100798289592, -0.04462396264648783,
0.10848100798289592, -0.04462396264648783, -0.20622952889680424, 0.06981623258249418,
-0.20622952889680424, 0.06981623258249418, 0.04605908331254217, 0.17125186017181915,
0.04605908331254217, 0.17125186017181915, 0.19171024087670094, 0.11143084902939673,
0.19171024087670094, 0.11143084902939673, 0.27754038729843733, -0.12265136848443012,
0.27754038729843733, -0.12265136848443012, 0.19691206793256374, -0.3437290183585999,
0.19691206793256374, -0.3437290183585999, 0.2203202896839464, -0.6376322470148492,
0.2203202896839464, -0.6376322470148492, 0.1396919703180728, -0.7286642204924485,
0.1396919703180728, -0.7286642204924485, 0.13709105679014139, -0.8977235998079901,
0.39458149605535064, -0.9185309080314413, 0.13709105679014139, -0.8977235998079901,
0.39458149605535064, -0.9185309080314413, 0.6962874652953938, -0.858709896889019,
0.6962874652953938, -0.858709896889019, 0.8445395363874839, -0.7104578257969286,
0.8445395363874839, -0.7104578257969286, 0.8393377093316211, -0.5205911382579358,
0.8393377093316211, -0.5205911382579358, 0.7222966005747078, -0.4529673865317191,
0.7222966005747078, -0.4529673865317191, 0.4, -0.6,
0.4, -0.6, 0.3035495225777514, -0.32812353719101145,
0.3035495225777514, -0.32812353719101145, 0.4335951989743217, -0.1460595902358128,
0.4335951989743217, -0.1460595902358128, 0.4335951989743217, 0.04640801083111149,
0.5434601240897526, 0.16422840418542378, 0.4335951989743217, 0.04640801083111149,
0.537631740091578, -0.6636413822941633, 0.5350308265636465, -0.7364669610762428,
0.5350308265636465, -0.7364669610762428, 0.6156591459295202, -0.7494715287158997,
0.6156591459295202, -0.7494715287158997, 0.6286637135691772, -0.6532377281824376,
0.6286637135691772, -0.6532377281824376, 0.537631740091578, -0.6636413822941633,
-0.4, 0.2, -0.26084871298336376, 0.22066921720251592,
-0.26084871298336376, 0.22066921720251592, -0.26605054003922657, 0.4417468670766857,
-0.26605054003922657, 0.4417468670766857, -0.4, 0.6,
-0.27905510767888364, 0.6628245169508555, -0.16201399892197033, 0.5145724458587652,
-0.16201399892197033, 0.5145724458587652, -0.13860577717058767, 0.28309114187286977,
-0.13860577717058767, 0.28309114187286977, 0.0, 0.2986966230404582,
0.0, 0.2986966230404582, 0.06946730506392483, 0.44694869413254856,
0.06946730506392483, 0.44694869413254856, -0.01636284135781158, 0.5613888893615305,
-0.01636284135781158, 0.5613888893615305, -0.27905510767888364, 0.6628245169508555,
-0.1464085177543819, 0.7174437010374151, 0.0, 0.6732281710625811,
0.0, 0.6732281710625811, 0.13449014326220998, 0.6940354792860324,
-0.1464085177543819, 0.7174437010374151, -0.047573803692988456, 0.7564574039563863,
-0.047573803692988456, 0.7564574039563863, 0.37117327430396796, 0.7616592310122491,
0.37117327430396796, 0.7616592310122491, 0.5922509241781375, 0.8891039938808881,
0.5922509241781375, 0.8891039938808881, 0.5558381347870978, 0.9463240914953791,
0.5558381347870978, 0.9463240914953791, 0.4205906313346647, 0.9541268320791734,
0.4205906313346647, 0.9541268320791734, 0.29574678199395715, 0.8708975991853682,
0.29574678199395715, 0.8708975991853682, 0.11014934753836887, 0.8372208423194695,
0.13449014326220998, 0.6940354792860324, 0.6, 0.6,
0.6, 0.6, 0.7274984276305706, 0.7252464416212093,
0.7274984276305706, 0.7252464416212093, 0.8809523257785236, 0.7070400469256894,
0.8809523257785236, 0.7070400469256894, 0.9485760775047402, 0.4365450400208229,
0.9485760775047402, 0.4365450400208229, 0.8653468446109351, 0.31430210420804666,
0.8653468446109351, 0.31430210420804666, 0.909562374585769, 0.14784363842043646,
0.909562374585769, 0.14784363842043646, 0.8757504987226608, -0.23969247724134354,
0.8757504987226608, -0.23969247724134354, 0.774314871133336, -0.32812353719101145,
0.774314871133336, -0.32812353719101145, 0.6702783300160797, -0.33072445071894285,
0.6702783300160797, -0.33072445071894285, 0.6260628000412458, -0.29431166132790315,
0.6260628000412458, -0.29431166132790315, 0.7066911194071194, -0.23969247724134354,
0.7066911194071194, -0.23969247724134354, 0.7665121305495417, -0.1486605037637442,
0.7665121305495417, -0.1486605037637442, 0.7535075629098847, 0.11403176255732814,
0.7535075629098847, 0.11403176255732814, 0.6676774164881483, 0.2622838336494185,
0.6676774164881483, 0.2622838336494185, 0.6546728488484913, 0.07241714611042559,
0.6546728488484913, 0.07241714611042559, 0.704090205879188, -0.07843583850959615,
0.704090205879188, -0.07843583850959615, 0.6988883788233251, -0.1694678119871955,
0.563640875370892, -0.20327968785030381, 0.6988883788233251, -0.1694678119871955,
0.563640875370892, -0.20327968785030381, 0.511622604812264, -0.1200504549564987,
0.511622604812264, -0.1200504549564987, 0.5194253453960581, -0.026417567950967967,
0.5194253453960581, -0.026417567950967967, 0.5684412929393573, 0.03552596459056943,
0.5684412929393573, 0.03552596459056943, 0.6, 0.2,
0.6, 0.2, 0.5456683846785265, 0.3320562089322359,
0.7092095515335306, 0.5854019747240594, 0.8, 0.6,
0.8, 0.6, 0.845578802046636, 0.5282148696701765,
0.845578802046636, 0.5282148696701765, 0.8015887212359569, 0.4490327242109539,
0.8015887212359569, 0.4490327242109539, 0.7092095515335306, 0.5854019747240594,
0.29350328787261243, 0.46882826057575955, 0.2957027919131464, 0.4358356999677501,
0.2957027919131464, 0.4358356999677501, 0.33529386464275773, 0.433636195927216,
0.33529386464275773, 0.433636195927216, 0.3385147229981519, 0.4738969253696431,
0.2957027919131464, 0.4358356999677501, 0.29350328787261243, 0.46882826057575955,
0.3385147229981519, 0.4738969253696431, 0.29350328787261243, 0.46882826057575955,
0.3007526633482028, 0.3773906350299966, 0.33785944567776255, 0.3690116841813863,
0.33785944567776255, 0.3690116841813863, 0.34025343163450833, 0.2181905689064014,
0.34025343163450833, 0.2181905689064014, 0.3139195861103046, 0.2134025969929098,
0.3007526633482028, 0.3773906350299966, 0.3139195861103046, 0.2134025969929098,
0.10683980085179354, 0.2840251827169107, 0.16668944977043837, 0.36542070524626763,
0.16668944977043837, 0.36542070524626763, 0.20259923912162525, 0.3522537824841658,
0.20259923912162525, 0.3522537824841658, 0.21217518294860843, 0.24093343549548643,
0.21217518294860843, 0.24093343549548643, 0.17387140764067574, 0.23016049869013036,
0.17387140764067574, 0.23016049869013036, 0.10683980085179354, 0.2840251827169107,
0.443551169724851, 0.5370401714419458, 0.4820518845461652, 0.42328805946988135,
0.4820518845461652, 0.42328805946988135, 0.5853038015669625, 0.41453789701049176,
0.5853038015669625, 0.41453789701049176, 0.6343047113395442, 0.4792890992099746,
0.6343047113395442, 0.4792890992099746, 0.443551169724851, 0.5370401714419458,
0.1285453211868255, 0.614041601084574, 0.14079554862997093, 0.5492903988850911,
0.14079554862997093, 0.5492903988850911, 0.22654714073198898, 0.5160397815394108,
0.22654714073198898, 0.5160397815394108, 0.2562976930939136, 0.5772909187551378,
0.2562976930939136, 0.5772909187551378, 0.1285453211868255, 0.614041601084574,
], dtype=numpy.float32)
# self.players =[
# [0, -0.5],
# ]
# lines_data = numpy.array([
# 0.030371951072,0.18523100742,-0.6129894535719,-0.3110763618748
# ], dtype=numpy.float32)
# Stress
if False:
import random
self.players = [
[random.random() * 2 - 1, random.random() * 2 - 1]
for _ in range(100)
]
self.num_lines = len(lines_data) // 4
self._line_texture_ptr = ctypes.c_int()
glCreateTextures(GL_TEXTURE_1D, 1, self._line_texture_ptr)
self._line_texture = self._line_texture_ptr.value
glTextureParameteri(self._line_texture, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE)
glTextureParameteri(self._line_texture, GL_TEXTURE_MIN_FILTER, GL_NEAREST )
glTextureParameteri(self._line_texture, GL_TEXTURE_MAG_FILTER, GL_NEAREST )
glTextureStorage1D(
self._line_texture,
1,
GL_RGBA32F,
self.num_lines
)
glTextureSubImage1D(
self._line_texture, 0, 0,
self.num_lines,
GL_RGBA, GL_FLOAT,
lines_data
)
triangle_indicies = numpy.array([
0, 1, 2
], dtype=numpy.uint32)
self.triangle_0 = viewport.StaticGeometry(
(2,),
triangle_indicies,
numpy.array([
0.2, 0.2,
0.6, 0.2,
0.4, 0.4
], dtype=numpy.float32),
)
self.triangle_1 = viewport.StaticGeometry(
(2,),
triangle_indicies,
numpy.array([
0.2-0.1, 0.8,
0.4-0.1, 0,
0.6-0.1, 0.8
], dtype=numpy.float32),
)
self.triangle_both = viewport.StaticGeometry(
(2,),
numpy.array([0, 1, 2,
# 3, 4, 5
]),
numpy.array([
0.2-0.2, 0.2,
0.6-0.2, 0.2,
0.4-0.2, 0.4,
# 0.2-0.2, 0.8,
# 0.4-0.2, 0,
# 0.6-0.2, 0.8
], dtype=numpy.float32),
)
self.triangle_screen = viewport.StaticGeometry(
(2,),
triangle_indicies,
numpy.array([
-4, -1,
1, -1,
1, 4
], dtype=numpy.float32),
)
self._draw_stencil_program = viewport.generate_shader_program(
GL_VERTEX_SHADER=DRAW_STENCIL_VERTEX_SHADER_SOURCE,
)
# Yolo hack for fow history
self._debugoffset_draw_stencil_program = viewport.generate_shader_program(
GL_VERTEX_SHADER=DRAW_DEBUGOFFSET_STENCIL_VERTEX_SHADER_SOURCE,
)
self._draw_shape_program = viewport.generate_shader_program(
GL_VERTEX_SHADER=DRAW_SHAPE_VERTEX_SHADER_SOURCE,
GL_FRAGMENT_SHADER=DRAW_SHAPE_FRAGMENT_SHADER_SOURCE,
)
self._draw_texture_program = viewport.generate_shader_program(
GL_VERTEX_SHADER=DRAW_SHAPE_VERTEX_SHADER_SOURCE,
GL_FRAGMENT_SHADER=DRAW_TEXTURE_FRAGMENT_SHADER_SOURCE,
)
# Frame buffer for on screen visibility
self._shared_vis_fb_col = viewport.FramebufferTarget(GL_RGB32F, True)
# depth24_s8 on mobile
self._shared_vis_fb_depth = viewport.FramebufferTarget(GL_DEPTH32F_STENCIL8, True)
self._shared_vis_fb = viewport.Framebuffer(
(self._shared_vis_fb_col, self._shared_vis_fb_depth),
wnd.width,
wnd.height
)
self._draw_fow_init_program = viewport.generate_shader_program(
GL_VERTEX_SHADER=DRAW_FOW_INIT_VERTEX_SHADER_SOURCE,
GL_FRAGMENT_SHADER=DRAW_FOW_INIT_FRAGMENT_SHADER_SOURCE,
)
self._draw_fow_history_program = viewport.generate_shader_program(
GL_VERTEX_SHADER=DRAW_FOW_INIT_VERTEX_SHADER_SOURCE,
GL_FRAGMENT_SHADER=DRAW_FOW_HISTORY_FRAGMENT_SHADER_SOURCE,
)
# Frame buffer which records the shared visibility on an entire grid per update
# depth24_s8 on mobile
self._fow_fb_depth = viewport.FramebufferTarget(GL_DEPTH32F_STENCIL8, True)
self._fow_fb = viewport.Framebuffer(
(self._fow_fb_depth,),
FOG_OF_WAR_RESOLUTION,
FOG_OF_WAR_RESOLUTION
)
# Frame buffer which records the shared visibility history
self._fow_history_fb_col = viewport.FramebufferTarget(GL_R8, True)
self._fow_history_fb = viewport.Framebuffer(
(
viewport.ProxyFramebufferTarget(self._fow_fb_depth),
self._fow_history_fb_col
),
FOG_OF_WAR_RESOLUTION,
FOG_OF_WAR_RESOLUTION
)
# Clear the initial history, although this should probably be uploaded
# in the future
with self._fow_history_fb.bind():
glClear(GL_COLOR_BUFFER_BIT)
# Framebuffer for baked direct lighting
self._baked_lighting_col = viewport.FramebufferTarget(
GL_RGB10_A2,
# GL_RGBA16F,
True,
custom_texture_settings={
GL_TEXTURE_WRAP_S: GL_CLAMP_TO_EDGE,
GL_TEXTURE_WRAP_T: GL_CLAMP_TO_EDGE,
GL_TEXTURE_MIN_FILTER: GL_LINEAR,
GL_TEXTURE_MAG_FILTER: GL_LINEAR,
})
self._baked_lighting_fb = viewport.Framebuffer(
(self._baked_lighting_col,),
BAKED_LIGHTING_RESOLUTION,
BAKED_LIGHTING_RESOLUTION
)
glClearColor(0.5, 0.5, 0.5, 0.0)
glViewport(0, 0, wnd.width, wnd.height)
def _generate_line_maps(self):
glViewport(0, 0, LINEMAP_RESOLUTION, self.num_point_lights)
with self._point_light_shadow_fb.bind():
glDepthFunc(GL_ALWAYS)
glUseProgram(_CLEAR_LINES_MAPS_PROGRAM.get())
glBindVertexArray(viewport.get_dummy_vao())
glDrawArrays(GL_TRIANGLES, 0, 3)
glDepthFunc(GL_LESS)
glUseProgram(_DRAW_LINES_MAPS_PROGRAM.get(APPLY_BIAS=1))
glBindTextureUnit(0, self._line_texture)
glBindTextureUnit(1, self._point_lights)
glUniform1i(0, 0)
glUniform2f(1, 1.0 / self.num_point_lights, 0.5 / LINEMAP_RESOLUTION)
glBindVertexArray(viewport.get_dummy_vao())
glDrawArraysInstanced(
GL_LINES,
0,
2 * 2 * self.num_lines, # 2 * 2 * lineCount
self.num_point_lights # pointLightCount
)
def _bake_lights(self, region=None):
# Render lights into a single texture
glViewport(0, 0, BAKED_LIGHTING_RESOLUTION, BAKED_LIGHTING_RESOLUTION)
glClearColor(0.0, 0.0, 0.0, 0.0)
if region:
glEnable(GL_SCISSOR_TEST)
glScissor(region[0], region[1], region[2], region[3])
with self._baked_lighting_fb.bind():
glClear(GL_COLOR_BUFFER_BIT)
glEnable(GL_BLEND)
glBlendFunc(GL_ONE, GL_ONE)
glUseProgram(_BAKE_POINTLIGHTS_PROGRAM.get())
glUniform1f(0, 1.0/self.num_point_lights)
glBindTextureUnit(0, self._point_lights)
glBindTextureUnit(1, self._point_lights_shadow_plane.value)
glBindVertexArray(viewport.get_dummy_vao())
glDrawArrays(GL_TRIANGLES, 0, 6 * self.num_point_lights)
glBlendFunc(GL_ONE, GL_ZERO)
glDisable(GL_BLEND)
if region:
glDisable(GL_SCISSOR_TEST)
def _apply_lighting(self):
# glStencilFunc(GL_ALWAYS, 0, 0xFF)
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE)
glDepthMask(GL_FALSE)
glDisable(GL_DEPTH_TEST)
glEnable(GL_BLEND)
glBlendFunc(GL_ONE, GL_ONE)
glUseProgram(_DRAW_BAKED_POINTLIGHTS_PROGRAM.get(VS_OUTPUT_UV=0))
glBindTextureUnit(0, self._baked_lighting_col.value)
glBindVertexArray(viewport.get_dummy_vao())
glDrawArrays(GL_TRIANGLES, 0, 3)
glBlendFunc(GL_ONE, GL_ZERO)
glDisable(GL_BLEND)
glEnable(GL_DEPTH_TEST)
glDepthMask(GL_TRUE)
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)
def _draw(self, wnd):
# FOW update
glViewport(0, 0, FOG_OF_WAR_RESOLUTION, FOG_OF_WAR_RESOLUTION)
with self._fow_fb.bind():
# Set the depth to 0 for any previously visible cells, causing
# the depth test to fail on subsequent occlusion draws
glStencilMask(0xFF)
glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)
if self._written_fov:
glUseProgram(self._draw_fow_init_program)
glBindTextureUnit(0, self._fow_history_fb_col.value)
self.triangle_screen.draw()
else:
glDisable(GL_DEPTH_TEST)
# Draw occlusion
# Dont write to depth
glDepthMask(GL_FALSE)
glUseProgram(_DRAW_SHARED_VISION_PROGRAM.get(NO_WORLD_TO_CLIP=1))
glBindTextureUnit(0, self._line_texture)
glStencilOp(GL_KEEP, GL_KEEP, GL_INCR)
glBindVertexArray(viewport.get_dummy_vao())
# Increment the value by one for each draw call thats occluded
for i, player in enumerate(self.players):
# Only accept pixels which were previously covered
glStencilFunc(GL_EQUAL, i, 0xFF)
depth = 1.0 - (i + 1) / (len(self.players) + 1)
glUniform3f(0, player[0], player[1], depth)
glDrawArrays(GL_TRIANGLES, 0, self.num_lines * 9)
if not self._written_fov:
glEnable(GL_DEPTH_TEST)
glDepthMask(GL_TRUE)
# FOW write back to history
with self._fow_history_fb.bind():
# Update any new pixels which arent occluded by all players
# and use the setting of depth=0 to filer excessive writes
glUseProgram(self._draw_fow_history_program)
glStencilFunc(GL_NOTEQUAL, len(self.players), 0xFF)
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP)
self.triangle_screen.draw()
self._written_fov = True
# Generate light shadow maps
if not self._line_maps_baked:
self._generate_line_maps()
self._line_maps_baked = True
# Bake lights
if not self._lights_baked:
self._bake_lights()
self._lights_baked = True
# Per character shared visibility
# Framebuffer really isnt needed here, could just draw directly the GL_BACK
# it should use the FOW grid in some mildly intelligent way to account for previously seen areas
glViewport(0, 0, wnd.width, wnd.height)
glClearColor(0.5, 0.5, 0.5, 0.0)
with self._shared_vis_fb.bind():
# Draw occlusion
glStencilMask(0xFF)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)
# Don't write to colour or depth
glDepthMask(GL_FALSE)
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)
glUseProgram(_DRAW_SHARED_VISION_PROGRAM.get(NO_WORLD_TO_CLIP=1))
# glStencilFunc(GL_ALWAYS, 1, 0xFF)
# glStencilOp(GL_KEEP, GL_KEEP, GL_INCR)
glBindTextureUnit(0, self._line_texture)
glBindVertexArray(viewport.get_dummy_vao())
# Increment on stencil + depth pass
# We could disable depth testing here.
glStencilOp(GL_KEEP, GL_KEEP, GL_INCR)
# Increment the value by one for each draw call thats occluded
for i, player in enumerate(self.players):
# Only accept pixels which were previously covered
glStencilFunc(GL_EQUAL, i, 0xFF)
depth = 1.0 - (i + 1) / (len(self.players) + 1)
glUniform3f(0, player[0], player[1], depth)
glDrawArrays(GL_TRIANGLES, 0, self.num_lines * 9)
# Renable colour + depth writeback
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)
glDepthMask(GL_TRUE)
# Only draw things not occluded by all players
# Draw texture version (so we can see the FOW texture array)
if True:
glUseProgram(self._draw_texture_program)
glBindTextureUnit(0, self._fow_history_fb_col.value)
# Draw solid col
else:
glUseProgram(self._draw_shape_program)
glUniform4f(1, 0, 1, 0, 1)
glStencilFunc(GL_NOTEQUAL, len(self.players), 0xFF)
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP)
glUniform1f(0, 0)
self.triangle_screen.draw()
# Apply lighting
self._apply_lighting()