class DecalPBR

import h3d.shader.pbr.VolumeDecal

@:directlyUsed@:src({ var output:{ var albedoStrength : Float; var normalStrength : Float; var pbrStrength : Float; var emissiveStrength : Float}; @const var CENTERED:Bool; @const var USE_ALBEDO:Bool; @const var USE_NORMAL:Bool; @param var albedoStrength:Float; @param var normalStrength:Float; @param var pbrStrength:Float; @param var emissiveStrength:Float; @param var normal:Vec3; @param var tangent:Vec3; @param var albedoTexture:Sampler2D; @param var normalTexture:Sampler2D; function __init__vertex() { transformedNormal = (normal * global.modelView.mat3()).normalize(); transformedTangent = vec4((tangent * global.modelView.mat3()).normalize(), 1.); }; function __init__fragment() { { var matrix = camera.inverseViewProj * global.modelViewInverse; var screenPos = projectedPosition.xy / projectedPosition.w; var depth = depthMap.get(screenToUv(screenPos)); var ruv = vec4(screenPos, depth, 1); var wpos = ruv * matrix; var localPos = (wpos.xyz / wpos.w); if (outsideBounds(localPos)) discard; calculatedUV = localPos.xy; fadeFactor = 1 - clamp(pow(max(0.0, abs(localPos.z * 2) - fadeStart) / (fadeEnd - fadeStart), fadePower), 0, 1); if (CENTERED) calculatedUV += 0.5; }; output.albedoStrength = USE_ALBEDO ? albedoStrength * pixelColor.a * fadeFactor : 0.0; output.normalStrength = USE_NORMAL ? normalStrength * pixelColor.a * fadeFactor : 0.0; output.pbrStrength = pbrStrength * pixelColor.a * fadeFactor; output.emissiveStrength = emissiveStrength * pixelColor.a * fadeFactor; }; function fragment() { if (USE_ALBEDO) { var albedo = albedoTexture.get(calculatedUV); pixelColor *= albedo; }; var worldNormal = vec3(0); if (USE_NORMAL || USE_NORMAL_FADE) worldNormal = getWorldNormal(); if (USE_NORMAL) { var worldTangent = cross(worldNormal, vec3(0, 1, 0)); var normal = normalTexture.get(calculatedUV).rgba; var n = worldNormal; var nf = unpackNormal(normal); var tanX = worldTangent.xyz.normalize(); var tanY = n.cross(tanX) * -1; transformedNormal = (nf.x * tanX + nf.y * tanY + nf.z * n).normalize(); }; if (USE_NORMAL_FADE) { normalFade(worldNormal); }; }; })@:build(hxsl.Macros.buildShader())@:autoBuild(hxsl.Macros.buildShader())