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Just making a brief commit and thats all to add onto dj's lighting engine improvements because I heard about the PR, in mine I * allowed all Vtx objects to be manipulated/retrieved * updated lighting engine demo to be an SM64 night mode with a flashlight * Fixed longterm bug where lighting bugs out unless you spawn a light * Added new default LE mode LE_MODE_AFFECT_ALL_SHADED_AND_COLORED which also affects vertex colored surfaces
51 lines
No EOL
1.3 KiB
Lua
51 lines
No EOL
1.3 KiB
Lua
-- special thanks to Coolio for figuring out worldspace shading
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--- @param dest Vec3f
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--- @param rotate Vec3f
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--- Rotates `dest` around the Z, Y, and X axes
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local function vec3f_rotate_zyx(dest, rotate)
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local v = { x = dest.x, y = dest.y, z = dest.z }
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local sx = sins(rotate.x)
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local cx = coss(rotate.x)
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local sy = sins(rotate.y)
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local cy = coss(rotate.y)
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local sz = sins(rotate.z)
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local cz = coss(rotate.z)
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-- Rotation around Z axis
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local xz = v.x * cz - v.y * sz
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local yz = v.x * sz + v.y * cz
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local zz = v.z
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-- Rotation around Y axis
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local xy = xz * cy + zz * sy
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local yy = yz
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local zy = -xz * sy + zz * cy
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-- Rotation around X axis
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dest.x = xy
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dest.y = yy * cx - zy * sx
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dest.z = yy * sx + zy * cx
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return dest
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end
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local LIGHTING_OFFSET = { x = 0x28 / 0xFF, y = 0x28 / 0xFF, z = 0x28 / 0xFF }
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function shading_update()
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local l = gLakituState
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local pitch = calculate_pitch(l.pos, l.focus)
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local yaw = calculate_yaw(l.pos, l.focus)
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local roll = l.roll
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local lightingDir = gVec3fOne()
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vec3f_rotate_zyx(lightingDir, { x = -pitch, y = -yaw, z = roll })
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vec3f_sub(lightingDir, LIGHTING_OFFSET)
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set_lighting_dir(0, lightingDir.x)
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set_lighting_dir(1, lightingDir.y)
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set_lighting_dir(2, lightingDir.z)
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end |