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playcanvas

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PlayCanvas WebGL game engine

playcanvas.com

playcanvas/engine

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declare const _default: "\nattribute particle_vertexData: vec4f; // XYZ = world pos, W = life\nattribute particle_vertexData2: vec4f; // X = angle, Y = scale, Z = alpha, W = velocity.x\nattribute particle_vertexData3: vec4f; // XYZ = particle local pos, W = velocity.y\nattribute particle_vertexData4: f32; // particle id\n\n// type depends on useMesh property. Start with X = velocity.z, Y = particle ID and for mesh particles proceeds with Z = mesh UV.x, W = mesh UV.y\n#ifndef USE_MESH\n attribute particle_vertexData5: vec2f;\n#else\n attribute particle_vertexData5: vec4f;\n#endif\n\nuniform matrix_viewProjection: mat4x4f;\nuniform matrix_model: mat4x4f;\n\n#ifndef VIEWMATRIX\n #define VIEWMATRIX\n uniform matrix_view: mat4x4f;\n#endif\n\nuniform matrix_normal: mat3x3f;\nuniform matrix_viewInverse: mat4x4f;\n\nuniform numParticles: f32;\nuniform lifetime: f32;\nuniform stretch: f32;\nuniform seed: f32;\nuniform wrapBounds: vec3f;\nuniform emitterScale: vec3f;\nuniform faceTangent: vec3f;\nuniform faceBinorm: vec3f;\n\n#ifdef PARTICLE_GPU\n var internalTex0: texture_2d<f32>;\n var internalTex0Sampler: sampler;\n var internalTex1: texture_2d<f32>;\n var internalTex1Sampler: sampler;\n var internalTex2: texture_2d<f32>;\n var internalTex2Sampler: sampler;\n#endif\nuniform emitterPos: vec3f;\n\nvarying texCoordsAlphaLife: vec4f;\n\nstruct RotateResult {\n rotatedVec: vec2f,\n matrix: mat2x2f\n}\n\nfn rotateWithMatrix(quadXY: vec2f, pRotation: f32) -> RotateResult {\n let c = cos(pRotation);\n let s = sin(pRotation);\n let m = mat2x2f(vec2f(c, s), vec2f(-s, c));\n return RotateResult(m * quadXY, m);\n}\n\n\nfn billboard(InstanceCoords: vec3f, quadXY: vec2f) -> vec3f {\n let pos = -uniform.matrix_viewInverse[0].xyz * quadXY.x + -uniform.matrix_viewInverse[1].xyz * quadXY.y;\n return pos;\n}\n\nfn customFace(InstanceCoords: vec3f, quadXY: vec2f) -> vec3f {\n let pos = uniform.faceTangent * quadXY.x + uniform.faceBinorm * quadXY.y;\n return pos;\n}\n\n@vertex\nfn vertexMain(input: VertexInput) -> VertexOutput {\n var output: VertexOutput;\n\n var particlePos = input.particle_vertexData.xyz;\n let inPos = particlePos;\n let vertPos = input.particle_vertexData3.xyz;\n var inVel = vec3f(input.particle_vertexData2.w, input.particle_vertexData3.w, input.particle_vertexData5.x);\n\n let id = floor(input.particle_vertexData4);\n let rndFactor = fract(sin(id + 1.0 + uniform.seed));\n let rndFactor3 = vec3f(rndFactor, fract(rndFactor*10.0), fract(rndFactor*100.0));\n\n #ifdef LOCAL_SPACE\n let modelRotation = mat3x3f(uniform.matrix_model[0].xyz, uniform.matrix_model[1].xyz, uniform.matrix_model[2].xyz);\n inVel = modelRotation * inVel;\n #endif\n let velocityV = safeNormalize((mat3x3f(uniform.matrix_view[0].xyz, uniform.matrix_view[1].xyz, uniform.matrix_view[2].xyz) * inVel).xy);\n\n let quadXY = vertPos.xy;\n\n #ifdef USE_MESH\n output.texCoordsAlphaLife = vec4f(input.particle_vertexData5.zw, input.particle_vertexData2.z, input.particle_vertexData.w);\n #else\n output.texCoordsAlphaLife = vec4f(quadXY * -0.5 + 0.5, input.particle_vertexData2.z, input.particle_vertexData.w);\n #endif\n var rotMatrix: mat2x2f;\n\n let inAngle = input.particle_vertexData2.x;\n var particlePosMoved = vec3f(0.0);\n let meshLocalPos = input.particle_vertexData3.xyz;\n"; export default _default;