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https://github.com/nzp-team/fteqw.git
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b7784f41d9
Stripped obsolete vk_nv_dedicated_allocation extension. Misc fixes for warnings. Linux now defaults to using ~/.local/share/fte instead of ~/.fte for greater consistency. Other misc linux tweaks. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5267 fc73d0e0-1445-4013-8a0c-d673dee63da5
36 lines
730 B
GLSL
36 lines
730 B
GLSL
!!cvarf ffov
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!!samps reflectcube
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#include "sys/defs.h"
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//stereographic view rendering, for high fovs that are still playable.
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layout(location=0) varying vec2 texcoord;
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#ifdef VERTEX_SHADER
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//uniform float cvar_ffov;
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void main()
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{
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texcoord = v_texcoord.xy;
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//make sure the ffov cvar actually does something meaningful
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texcoord *= cvar_ffov / 90.0;
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gl_Position = ftetransform();
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}
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#endif
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#ifdef FRAGMENT_SHADER
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void main()
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{
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vec3 tc;
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vec2 d;
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vec2 ang;
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d = texcoord;
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//compute the 2d->3d projection
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float div = 1.0 + d.x*d.x + d.y*d.y;
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tc.x = 2.0*d.x/div;
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tc.y = -2.0*d.y/div;
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tc.z = -(-1.0 + d.x*d.x + d.y*d.y)/div;
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gl_FragColor = textureCube(s_reflectcube, tc);
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}
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#endif
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