stk-code_catmod/data/shaders/objectpass_spheremap.frag

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// See http://www.ozone3d.net/tutorials/glsl_texturing_p04.php for ref
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#ifdef Use_Bindless_Texture
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layout(bindless_sampler) uniform sampler2D tex;
#else
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uniform sampler2D tex;
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#endif
in vec3 nor;
out vec4 FragColor;
#stk_include "utils/getPosFromUVDepth.frag"
#stk_include "utils/getLightFactor.frag"
void main() {
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vec3 texc = gl_FragCoord.xyz / vec3(screen, 1.);
vec3 u = getPosFromUVDepth(texc, InverseProjectionMatrix).xyz;
vec3 r = reflect(u, nor);
float m = 2.0 * sqrt(r.x * r.x + r.y * r.y + (r.z + 1.0) * (r.z + 1.0));
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r.y = - r.y;
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vec4 detail0 = texture(tex, r.xy / m + .5);
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#ifdef Use_Bindless_Texture
#ifdef SRGBBindlessFix
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detail0.xyz = pow(detail0.xyz, vec3(2.2));
#endif
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#endif
FragColor = vec4(getLightFactor(detail0.xyz, vec3(1.), 0., 0.), 1.);
}