38 lines
844 B
Text
38 lines
844 B
Text
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//======= Copyright (c) 2015-2020 Vera Visions LLC. All rights reserved. =======
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//
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// Purpose:
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//
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// Blending terrain and masking its edges for a smooth transition into alpha.
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//==============================================================================
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!!ver 110
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!!samps diffuse
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#include "sys/defs.h"
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varying vec2 tex1_c;
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varying vec2 tex2_c;
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varying vec4 vex_color;
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#ifdef VERTEX_SHADER
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void main ( void )
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{
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tex1_c = v_texcoord + vec2(e_time * 0.25, e_time * 0.25);
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tex2_c = v_texcoord * 0.5 + vec2(e_time * 0.1, e_time * 0.2);
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vex_color = v_colour;
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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 ( void )
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{
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vec3 diffuse_f = texture2D( s_diffuse, tex1_c ).rgb * vex_color.a;
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diffuse_f *= texture2D( s_diffuse, tex2_c ).rgb * vex_color.a;
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gl_FragColor = vec4(diffuse_f, 1.0);
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}
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#endif
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