com.gempukku.libgdx.graph.plugin.lighting3d.producer.ApplyNormalMapShaderNodeBuilder Maven / Gradle / Ivy

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package com.gempukku.libgdx.graph.plugin.lighting3d.producer;

import com.badlogic.gdx.utils.JsonValue;
import com.badlogic.gdx.utils.ObjectMap;
import com.badlogic.gdx.utils.ObjectSet;
import com.gempukku.libgdx.graph.shader.GraphShader;
import com.gempukku.libgdx.graph.shader.GraphShaderContext;
import com.gempukku.libgdx.graph.shader.ShaderFieldType;
import com.gempukku.libgdx.graph.shader.builder.CommonShaderBuilder;
import com.gempukku.libgdx.graph.shader.builder.GLSLFragmentReader;
import com.gempukku.libgdx.graph.shader.node.ConfigurationCommonShaderNodeBuilder;
import com.gempukku.libgdx.graph.shader.node.DefaultFieldOutput;
import com.gempukku.libgdx.graph.util.LibGDXCollections;

public class ApplyNormalMapShaderNodeBuilder extends ConfigurationCommonShaderNodeBuilder {
    public ApplyNormalMapShaderNodeBuilder() {
        super(new ApplyNormalMapShaderNodeConfiguration());
    }

    @Override
    protected ObjectMap buildCommonNode(boolean designTime, String nodeId, JsonValue data, ObjectMap inputs, ObjectSet producedOutputs, CommonShaderBuilder commonShaderBuilder, GraphShaderContext graphShaderContext, GraphShader graphShader) {
        commonShaderBuilder.addMainLine("// Apply normal map");
        if (!commonShaderBuilder.containsFunction("applyNormalMap")) {
            commonShaderBuilder.addFunction("applyNormalMap", GLSLFragmentReader.getFragment("applyNormalMap"));
        }

        FieldOutput normal = inputs.get("normal");
        FieldOutput tangent = inputs.get("tangent");
        FieldOutput normalMap = inputs.get("normalMap");
        FieldOutput strength = inputs.get("strength");
        String strengthValue = strength != null ? strength.getRepresentation() : "1.0";

        String name = "result_" + nodeId;

        commonShaderBuilder.addMainLine(ShaderFieldType.Vector3.getShaderType() + " " + name + " = applyNormalMap(" + tangent.getRepresentation() + ", " + normal.getRepresentation() + ", " + normalMap.getRepresentation() + ".xyz, " + strengthValue + ");");
        return LibGDXCollections.singletonMap("output", new DefaultFieldOutput(ShaderFieldType.Vector3, name));
    }
}