Node: add .construct() and some architectural changes

[sunag]

Description

Use ShaderNode with analyze() to optimization brought some other challenges. The current approach use ShaderNode directly in the .generate() stage, ignoring the previous stage analyze(). It caused some bugs and bad optimization for non-inline codes. To solve this, I worked on a process to .construct() the shader struct before .analyze() and .generate().

I'm working to make the same thing to ComputeNode.

"shader nodes" in this case it would be the nodes created at the time of the renderer for calculating the lighting.

NormalMapNode added on .generate() stage
-> no cache has created

// FLOW -> TransformedNormalView
TransformedNormalView = normalize( ( ( ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).x ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).x ) ) ) * vec3<f32>( ( vec3<f32>( ( ( ( textureSample( nodeUniform8, nodeUniform8_sampler, nodeVary1 ) * vec4<f32>( vec3<f32>( 2.0 ), 1.0 ) ) - vec4<f32>( vec3<f32>( 1.0 ), 1.0 ) ).xy * NodeUniforms.nodeUniform9 ), ( ( textureSample( nodeUniform8, nodeUniform8_sampler, nodeVary1 ) * vec4<f32>( vec3<f32>( 2.0 ), 1.0 ) ) - vec4<f32>( vec3<f32>( 1.0 ), 1.0 ) ).z ).x * ( ( ( f32( isFront ) * 2.0 ) - 1.0 ) * inverseSqrt( max( dot( ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).x ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).x ) ) ), ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).x ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).x ) ) ) ), dot( ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).y ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).y ) ) ), ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).y ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).y ) ) ) ) ) ) ) ) ) ) + ( ( ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).y ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).y ) ) ) * vec3<f32>( ( vec3<f32>( ( ( ( textureSample( nodeUniform8, nodeUniform8_sampler, nodeVary1 ) * vec4<f32>( vec3<f32>( 2.0 ), 1.0 ) ) - vec4<f32>( vec3<f32>( 1.0 ), 1.0 ) ).xy * NodeUniforms.nodeUniform9 ), ( ( textureSample( nodeUniform8, nodeUniform8_sampler, nodeVary1 ) * vec4<f32>( vec3<f32>( 2.0 ), 1.0 ) ) - vec4<f32>( vec3<f32>( 1.0 ), 1.0 ) ).z ).y * ( ( ( f32( isFront ) * 2.0 ) - 1.0 ) * inverseSqrt( max( dot( ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).x ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).x ) ) ), ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).x ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).x ) ) ) ), dot( ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).y ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).y ) ) ), ( ( cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) ) * vec3<f32>( dpdx( nodeVary1.xy ).y ) ) + ( cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) ) * vec3<f32>( dpdy( nodeVary1.xy ).y ) ) ) ) ) ) ) ) ) ) + ( normalize( nodeVary4 ) * vec3<f32>( vec3<f32>( ( ( ( textureSample( nodeUniform8, nodeUniform8_sampler, nodeVary1 ) * vec4<f32>( vec3<f32>( 2.0 ), 1.0 ) ) - vec4<f32>( vec3<f32>( 1.0 ), 1.0 ) ).xy * NodeUniforms.nodeUniform9 ), ( ( textureSample( nodeUniform8, nodeUniform8_sampler, nodeVary1 ) * vec4<f32>( vec3<f32>( 2.0 ), 1.0 ) ) - vec4<f32>( vec3<f32>( 1.0 ), 1.0 ) ).z ).z ) ) ) ) );

NormalMapNode added on .construct() stage
-> cache working done

// FLOW -> TransformedNormalView
nodeVar7 = cross( dpdy( nodeVary3.xyz.xyz ), normalize( nodeVary4 ) );
nodeVar8 = dpdx( nodeVary1.xy );
nodeVar9 = cross( normalize( nodeVary4 ), dpdx( nodeVary3.xyz.xyz ) );
nodeVar10 = dpdy( nodeVary1.xy );
nodeVar11 = ( ( nodeVar7 * vec3<f32>( nodeVar8.x ) ) + ( nodeVar9 * vec3<f32>( nodeVar10.x ) ) );
nodeVar12 = ( ( textureSample( nodeUniform8, nodeUniform8_sampler, nodeVary1 ) * vec4<f32>( vec3<f32>( 2.0 ), 1.0 ) ) - vec4<f32>( vec3<f32>( 1.0 ), 1.0 ) );
nodeVar13 = ( ( nodeVar7 * vec3<f32>( nodeVar8.y ) ) + ( nodeVar9 * vec3<f32>( nodeVar10.y ) ) );
nodeVar14 = ( ( ( f32( isFront ) * 2.0 ) - 1.0 ) * inverseSqrt( max( dot( nodeVar11, nodeVar11 ), dot( nodeVar13, nodeVar13 ) ) ) );
TransformedNormalView = normalize( ( ( nodeVar11 * vec3<f32>( ( vec3<f32>( ( nodeVar12.xy * NodeUniforms.nodeUniform9 ), nodeVar12.z ).x * nodeVar14 ) ) ) + ( ( nodeVar13 * vec3<f32>( ( vec3<f32>( ( nodeVar12.xy * NodeUniforms.nodeUniform9 ), nodeVar12.z ).y * nodeVar14 ) ) ) + ( normalize( nodeVary4 ) * vec3<f32>( vec3<f32>( ( nodeVar12.xy * NodeUniforms.nodeUniform9 ), nodeVar12.z ).z ) ) ) ) );

This contribution is funded by Google via Igalia