@tolokoban/tgd/lib/dist/painter/segments/segments.vert.d.ts

ToloGameDev library for WebGL2

export declare const VERT = "#version 300 es\n\nprecision highp float;\n\nuniform mat4 uniModelViewMatrix;\nuniform mat4 uniProjectionMatrix;\nuniform float uniMinRadius;\n\n//===================\n// Vertex attributes\n//-------------------\n\n// Position of the vertex, relative to\n// the current center and assuming a\n// radius of 1.\nin vec3 POSITION;\n// What tip is your center: 0 (base) or 1 (tip).\nin float attTip;\n// Normals of the tube that represents the segment.\nin vec3 NORMAL;\n\n//=====================\n// Instance attributes\n//---------------------\n\n// Coords and radius of base.\nin vec4 attXYZR0;\n// Coords and radius of tip.\nin vec4 attXYZR1;\n// The color is taken from a texture.\nin vec2 attUV0;\nin vec2 attUV1;\n\nvoid main() {\n    vec3 pos = POSITION;\n    vec4 xyzr = mix(attXYZR0, attXYZR1, attTip);\n    vec3 center = xyzr.xyz;\n    float radius = max(\n        xyzr.w,\n        uniMinRadius * (uniProjectionMatrix * uniModelViewMatrix * vec4(center, 1)).w\n    );\n    vec3 dir = attXYZR1.xyz - attXYZR0.xyz;\n    float len = length(dir);\n    if (len == 0.0) {\n        // Just a sphere\n        pos *= radius;\n        pos += center.xyz;\n        varNormal = NORMAL;\n    } else {\n        // Full capsule\n        vec3 Z = dir / len;\n        vec3 v = abs(Z.z) > 0.7 ? vec3(1,0,0) : vec3(0,0,1);\n        vec3 Y = cross(v, Z);\n        vec3 X = cross(Y, Z);\n        mat3 mat = mat3(X, Y, Z);\n        pos *= radius;\n        pos = mat * pos + center.xyz;\n        varNormal = mat * NORMAL;\n    }\n    gl_Position = uniProjectionMatrix * uniModelViewMatrix * vec4(pos, 1);\n}";
//# sourceMappingURL=segments.vert.d.ts.map