@animech-public/playcanvas
Version:
PlayCanvas WebGL game engine
2 lines (1 loc) • 1.32 kB
JavaScript
var e="\nuniform highp sampler2D uSceneDepthMap;\n#ifndef SCREENSIZE\n#define SCREENSIZE\nuniform vec4 uScreenSize;\n#endif\n#ifndef VIEWMATRIX\n#define VIEWMATRIX\nuniform mat4 matrix_view;\n#endif\n#ifndef LINEARIZE_DEPTH\n#ifndef CAMERAPLANES\n#define CAMERAPLANES\nuniform vec4 camera_params;\n#endif\n#define LINEARIZE_DEPTH\n#ifdef GL2\nfloat linearizeDepth(float z) {\n\tif (camera_params.w == 0.0)\n\t\treturn (camera_params.z * camera_params.y) / (camera_params.y + z * (camera_params.z - camera_params.y));\n\telse\n\t\treturn camera_params.z + z * (camera_params.y - camera_params.z);\n}\n#else\n#ifndef UNPACKFLOAT\n#define UNPACKFLOAT\nfloat unpackFloat(vec4 rgbaDepth) {\n\tconst vec4 bitShift = vec4(1.0 / (256.0 * 256.0 * 256.0), 1.0 / (256.0 * 256.0), 1.0 / 256.0, 1.0);\n\treturn dot(rgbaDepth, bitShift);\n}\n#endif\n#endif\n#endif\nfloat getLinearScreenDepth(vec2 uv) {\n\t#ifdef GL2\n\t\treturn linearizeDepth(texture2D(uSceneDepthMap, uv).r);\n\t#else\n\t\treturn unpackFloat(texture2D(uSceneDepthMap, uv)) * camera_params.y;\n\t#endif\n}\n#ifndef VERTEXSHADER\nfloat getLinearScreenDepth() {\n\tvec2 uv = gl_FragCoord.xy * uScreenSize.zw;\n\treturn getLinearScreenDepth(uv);\n}\n#endif\nfloat getLinearDepth(vec3 pos) {\n\treturn -(matrix_view * vec4(pos, 1.0)).z;\n}\n";export{e as default};