38 lines
No EOL
1.5 KiB
GLSL
38 lines
No EOL
1.5 KiB
GLSL
#include "../sampler.glsl"
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/*
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contributors: Patricio Gonzalez Vivo
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description: turns alpha to zero if it's outside the texture normalize coordinates
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use: <vec4> sampleZero(<SAMPLER_TYPE> tex, <vec2> st);
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options:
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- SAMPLER_FNC(TEX, UV)
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license:
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
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*/
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#ifndef FNC_SAMPLEZERO
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#define FNC_SAMPLEZERO
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vec4 sampleZero(SAMPLER_TYPE tex, vec2 st) {
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return SAMPLER_FNC( tex, st ) * vec4(1.0,1.0,1.0, (st.x <= 0.0 || st.x >= 1.0 || st.y <= 0.0 || st.y >= 1.0)? 0.0 : 1.0);
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}
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vec4 sampleZero(SAMPLER_TYPE tex, vec2 st, float pad) {
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return SAMPLER_FNC( tex, st ) * vec4(1.0,1.0,1.0, (st.x <= pad || st.x >= 1.0-pad || st.y <= pad || st.y >= 1.0 - pad)? 0.0 : 1.0);
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}
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vec4 sampleZero(SAMPLER_TYPE tex, vec2 st, vec2 pad) {
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return SAMPLER_FNC( tex, st ) * vec4(1.0,1.0,1.0, (st.x <= pad.x || st.x >= 1.0-pad.x || st.y <= pad.y || st.y >= 1.0 - pad.y)? 0.0 : 1.0);
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}
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vec4 sampleZero(SAMPLER_TYPE tex, vec2 st, vec4 pad) {
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return SAMPLER_FNC( tex, st ) * vec4(1.0,1.0,1.0, (st.x <= pad.x || st.x >= pad.z || st.y <= pad.y || st.y >= pad.w)? 0.0 : 1.0);
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}
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#ifdef STR_AABB
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vec4 sampleZero(SAMPLER_TYPE tex, vec2 st, AABB pad) {
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return SAMPLER_FNC( tex, st ) * vec4(1.0,1.0,1.0, (st.x <= pad.min.x || st.x >= pad.max.x || st.y <= pad.min.y || st.y >= pad.max.y)? 0.0 : 1.0);
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}
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#endif
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#endif |