112 lines
5.5 KiB
Python
112 lines
5.5 KiB
Python
import bpy
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import lnx.material.shader as shader
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import lnx.material.mat_state as mat_state
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import lnx.material.mat_utils as mat_utils
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import lnx.utils
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if lnx.is_reload(__name__):
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shader = lnx.reload_module(shader)
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lnx.utils = lnx.reload_module(lnx.utils)
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else:
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lnx.enable_reload(__name__)
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def write(vert: shader.Shader, frag: shader.Shader):
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wrd = bpy.data.worlds['Lnx']
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rpdat = lnx.utils.get_rp()
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blend = mat_state.material.lnx_blending
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parse_opacity = blend or mat_utils.is_transluc(mat_state.material)
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is_mobile = rpdat.lnx_material_model == 'Mobile'
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is_shadows = '_ShadowMap' in wrd.world_defs
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is_shadows_atlas = '_ShadowMapAtlas' in wrd.world_defs
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is_single_atlas = '_SingleAtlas' in wrd.world_defs
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frag.add_include_front('std/clusters.glsl')
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frag.add_uniform('vec2 cameraProj', link='_cameraPlaneProj')
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frag.add_uniform('vec2 cameraPlane', link='_cameraPlane')
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frag.add_uniform('vec4 lightsArray[maxLights * 3]', link='_lightsArray')
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frag.add_uniform('sampler2D clustersData', link='_clustersData')
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if is_shadows:
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frag.add_uniform('bool receiveShadow')
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frag.add_uniform('vec2 lightProj', link='_lightPlaneProj', included=True)
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if is_shadows_atlas:
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if not is_single_atlas:
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frag.add_uniform('sampler2DShadow shadowMapAtlasPoint', included=True)
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frag.add_uniform('sampler2D shadowMapAtlasPointTransparent', included=True)
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else:
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frag.add_uniform('sampler2DShadow shadowMapAtlas', top=True)
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frag.add_uniform('sampler2D shadowMapAtlasTransparent', top=True)
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frag.add_uniform('vec4 pointLightDataArray[maxLightsCluster]', link='_pointLightsAtlasArray', included=True)
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else:
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frag.add_uniform('samplerCubeShadow shadowMapPoint[4]', included=True)
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frag.add_uniform('samplerCube shadowMapPointTransparent[4]', included=True)
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if not '_VoxelAOvar' in wrd.world_defs and not '_VoxelGI' in wrd.world_defs or ((parse_opacity or '_VoxelShadow' in wrd.world_defs) and ('_VoxelAOvar' in wrd.world_defs or '_VoxelGI' in wrd.world_defs)):
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vert.add_out('vec4 wvpposition')
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vert.write('wvpposition = gl_Position;')
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# wvpposition.z / wvpposition.w
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frag.write('float viewz = linearize(gl_FragCoord.z, cameraProj);')
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frag.write('int clusterI = getClusterI((wvpposition.xy / wvpposition.w) * 0.5 + 0.5, viewz, cameraPlane);')
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frag.write('int numLights = int(texelFetch(clustersData, ivec2(clusterI, 0), 0).r * 255);')
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frag.write('#ifdef HLSL')
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frag.write('viewz += texture(clustersData, vec2(0.0)).r * 1e-9;') # TODO: krafix bug, needs to generate sampler
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frag.write('#endif')
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if '_Spot' in wrd.world_defs:
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frag.add_uniform('vec4 lightsArraySpot[maxLights * 2]', link='_lightsArraySpot')
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frag.write('int numSpots = int(texelFetch(clustersData, ivec2(clusterI, 1 + maxLightsCluster), 0).r * 255);')
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frag.write('int numPoints = numLights - numSpots;')
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if is_shadows:
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if is_shadows_atlas:
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if not is_single_atlas:
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frag.add_uniform('sampler2DShadow shadowMapAtlasSpot', included=True)
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frag.add_uniform('sampler2D shadowMapAtlasSpotTransparent', included=True)
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else:
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frag.add_uniform('sampler2DShadow shadowMapAtlas', top=True)
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frag.add_uniform('sampler2D shadowMapAtlasTransparent', top=True)
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else:
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frag.add_uniform('sampler2DShadow shadowMapSpot[4]', included=True)
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frag.add_uniform('sampler2D shadowMapSpotTransparent[4]', included=True)
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frag.add_uniform('mat4 LWVPSpotArray[maxLightsCluster]', link='_biasLightWorldViewProjectionMatrixSpotArray', included=True)
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frag.write('for (int i = 0; i < min(numLights, maxLightsCluster); i++) {')
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frag.write('int li = int(texelFetch(clustersData, ivec2(clusterI, i + 1), 0).r * 255);')
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frag.write('direct += sampleLight(')
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frag.write(' wposition,')
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frag.write(' n,')
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frag.write(' vVec,')
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frag.write(' dotNV,')
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frag.write(' lightsArray[li * 3].xyz,') # lp
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frag.write(' lightsArray[li * 3 + 1].xyz,') # lightCol
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frag.write(' albedo,')
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frag.write(' roughness,')
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frag.write(' specular,')
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frag.write(' f0')
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if is_shadows:
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if parse_opacity:
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frag.write('\t, li, lightsArray[li * 3 + 2].x, lightsArray[li * 3 + 2].z != 0.0, opacity != 1.0') # bias
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else:
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frag.write('\t, li, lightsArray[li * 3 + 2].x, lightsArray[li * 3 + 2].z != 0.0, false') # bias
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if '_Spot' in wrd.world_defs:
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frag.write('\t, lightsArray[li * 3 + 2].y != 0.0')
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frag.write('\t, lightsArray[li * 3 + 2].y') # spot size (cutoff)
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frag.write('\t, lightsArraySpot[li * 2].w') # spot blend (exponent)
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frag.write('\t, lightsArraySpot[li * 2].xyz') # spotDir
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frag.write('\t, vec2(lightsArray[li * 3].w, lightsArray[li * 3 + 1].w)') # scale
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frag.write('\t, lightsArraySpot[li * 2 + 1].xyz') # right
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if '_VoxelShadow' in wrd.world_defs:
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frag.write(', voxels, voxelsSDF, clipmaps')
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if '_MicroShadowing' in wrd.world_defs and not is_mobile:
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frag.write('\t, occlusion')
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if '_SSRS' in wrd.world_defs:
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frag.add_uniform('mat4 invVP', '_inverseViewProjectionMatrix')
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frag.add_uniform('vec3 eye', '_cameraPosition')
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frag.add_uniform('sampler2D gbufferD', link='_gbufferD', top=True)
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frag.write(', gbufferD, invVP, eye')
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frag.write(');')
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frag.write('}') # for numLights
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