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playcanvas

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Open-source WebGL/WebGPU 3D engine for the web

playcanvas.com

playcanvas/engine

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declare const _default: "\n\n#if LIGHT_TYPE != DIRECTIONAL\n uniform view_position: vec3f;\n uniform light_radius: f32;\n#endif\n\n#if SHADOW_TYPE == PCSS_32F\n #include \"linearizeDepthPS\"\n#endif\n\n@fragment\nfn fragmentMain(input: FragmentInput) -> FragmentOutput {\n\n #include \"litUserMainStartPS\"\n\n var output: FragmentOutput;\n\n evaluateFrontend();\n\n // using non-standard depth, i.e gl_FragCoord.z\n #ifdef PERSPECTIVE_DEPTH\n var depth: f32 = input.position.z;\n\n #if SHADOW_TYPE == PCSS_32F\n // spot/omni shadows currently use linear depth.\n // TODO: use perspective depth for spot/omni the same way as directional\n #if LIGHT_TYPE != DIRECTIONAL\n depth = linearizeDepthWithParams(depth, camera_params);\n #endif\n #endif\n\n #else\n var depth: f32 = min(distance(uniform.view_position, input.vPositionW) / uniform.light_radius, 0.99999);\n #define MODIFIED_DEPTH\n #endif\n\n #if SHADOW_TYPE == VSM_16F || SHADOW_TYPE == VSM_32F\n #if SHADOW_TYPE == VSM_32F\n var exponent: f32 = 15.0;\n #else\n var exponent: f32 = 5.54;\n #endif\n\n var depth_vsm = 2.0 * depth - 1.0;\n depth_vsm = exp(exponent * depth_vsm);\n output.color = vec4f(depth_vsm, depth_vsm * depth_vsm, 1.0, 1.0);\n #else\n #if SHADOW_TYPE == PCSS_32F\n output.color = vec4f(depth, 0.0, 0.0, 1.0);\n #else\n #ifdef MODIFIED_DEPTH\n // If we end up using modified depth, it needs to be explicitly written to gl_FragDepth\n output.fragDepth = depth;\n #endif\n\n // just the simplest code, color is not written anyway\n output.color = vec4f(1.0);\n #endif\n #endif\n\n #include \"litUserMainEndPS\"\n \n return output;\n}\n"; export default _default;