109 lines
4.4 KiB
Python
109 lines
4.4 KiB
Python
import material.cycles as cycles
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import material.mat_state as mat_state
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import material.mat_utils as mat_utils
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import bpy
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def make(context_id):
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con_voxel = mat_state.data.add_context({ 'name': context_id, 'depth_write': False, 'compare_mode': 'always', 'cull_mode': 'none', 'color_write_red': False, 'color_write_green': False, 'color_write_blue': False, 'color_write_alpha': False })
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wrd = bpy.data.worlds['Arm']
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if '_NoShadows' in wrd.world_defs:
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is_shadows = False
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else:
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is_shadows = True
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vert = con_voxel.make_vert()
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frag = con_voxel.make_frag()
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geom = con_voxel.make_geom()
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tesc = None
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tese = None
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geom.ins = vert.outs
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frag.ins = geom.outs
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vert.add_uniform('mat4 W', '_worldMatrix')
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vert.add_uniform('mat3 N', '_normalMatrix')
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vert.add_out('vec3 wpositionGeom')
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vert.add_out('vec3 wnormalGeom')
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vert.add_include('../../Shaders/compiled.glsl')
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if mat_state.data.is_elem('tex'):
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vert.add_out('vec2 texCoordGeom')
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vert.write('texCoordGeom = tex;')
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vert.write('wpositionGeom = vec3(W * vec4(pos, 1.0)) / voxelgiDimensions.x;')
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vert.write('wnormalGeom = normalize(N * nor);')
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vert.write('gl_Position = vec4(0.0, 0.0, 0.0, 1.0);')
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if is_shadows:
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vert.add_out('vec4 lampPosGeom')
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vert.add_uniform('mat4 LWVP', '_biasLampWorldViewProjectionMatrix')
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vert.write('lampPosGeom = LWVP * vec4(pos, 1.0);')
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geom.add_out('vec3 wposition')
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geom.add_out('vec3 wnormal')
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if is_shadows:
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geom.add_out('vec4 lampPos')
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if mat_state.data.is_elem('tex'):
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geom.add_out('vec2 texCoord')
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geom.write('const vec3 p1 = wpositionGeom[1] - wpositionGeom[0];')
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geom.write('const vec3 p2 = wpositionGeom[2] - wpositionGeom[0];')
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geom.write('const vec3 p = abs(cross(p1, p2));')
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geom.write('for (uint i = 0; i < 3; ++i) {')
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geom.write(' wposition = wpositionGeom[i];')
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geom.write(' wnormal = wnormalGeom[i];')
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if is_shadows:
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geom.write(' lampPos = lampPosGeom[i];')
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if mat_state.data.is_elem('tex'):
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geom.write(' texCoord = texCoordGeom[i];')
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geom.write(' if (p.z > p.x && p.z > p.y) {')
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geom.write(' gl_Position = vec4(wposition.x, wposition.y, 0.0, 1.0);')
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geom.write(' }')
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geom.write(' else if (p.x > p.y && p.x > p.z) {')
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geom.write(' gl_Position = vec4(wposition.y, wposition.z, 0.0, 1.0);')
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geom.write(' }')
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geom.write(' else {')
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geom.write(' gl_Position = vec4(wposition.x, wposition.z, 0.0, 1.0);')
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geom.write(' }')
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geom.write(' EmitVertex();')
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geom.write('}')
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geom.write('EndPrimitive();')
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frag.write('float visibility = 1.0;')
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if is_shadows:
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frag.add_uniform('sampler2D shadowMap')
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#frag.add_uniform('bool receiveShadow')
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frag.add_uniform('float shadowsBias', '_lampShadowsBias')
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# frag.write('if (receiveShadow && lampPos.w > 0.0) {')
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frag.write('if (lampPos.w > 0.0) {')
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frag.write(' vec3 lpos = lampPos.xyz / lampPos.w;')
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frag.write(' if (texture(shadowMap, lpos.xy).r < lpos.z - shadowsBias) visibility = 0.0;')
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frag.write('}')
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frag.add_include('../../Shaders/compiled.glsl')
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frag.add_include('../../Shaders/std/math.glsl')
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frag.write_header('#extension GL_ARB_shader_image_load_store : enable')
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frag.add_uniform('layout(RGBA8) image3D voxels')
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frag.add_uniform('vec3 lightPos', '_lampPosition')
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frag.add_uniform('vec3 lightColor', '_lampColor')
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frag.write('if (!isInsideCube(wposition)) return;')
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frag.write('vec3 basecol;')
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frag.write('float roughness;') #
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frag.write('float metallic;') #
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frag.write('float occlusion;') #
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frag.write_pre = True
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frag.write('mat3 TBN;') # TODO: discard, parse basecolor only
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frag.write_pre = False
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cycles.parse(mat_state.nodes, vert, frag, geom, tesc, tese, parse_opacity=False, parse_displacement=False)
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frag.write('vec3 color = basecol * visibility * lightColor * max(dot(wnormal, normalize(lightPos - wposition * voxelgiDimensions.x)), 0.0) * attenuate(distance(wposition * voxelgiDimensions.x, lightPos));')
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frag.write('vec3 voxel = wposition * 0.5 + vec3(0.5);')
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frag.write('imageStore(voxels, ivec3(voxelgiResolution * voxel), vec4(color, 1.0));') # , alpha
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return con_voxel
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