42 lines
769 B
Plaintext
42 lines
769 B
Plaintext
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uniform float u1[4];
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float index_by_literal() {
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return u1[0];
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}
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uniform float u2[4];
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float index_by_loop() {
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float sum = 0;
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for (int i = 3; i >= 0; --i) {
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sum += u2[i];
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}
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return sum;
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}
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uniform float u3[4];
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float index_by_complex_loop() {
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float prod = 1;
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for (int i = 0; i < 4; ++i) {
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prod *= u3[i < 2 ? 0 : i];
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}
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return prod;
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}
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uniform float u4[16];
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float index_out_of_bounds_checked() {
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float sum = 0;
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for (float f = -2.3; f < 17.0; f += 3.7) {
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if (f > 0 && f < 16) {
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sum -= u4[int(f)];
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}
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}
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return sum;
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}
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float4 main() {
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return float4(
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index_by_literal(),
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index_by_loop(),
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index_by_complex_loop(),
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index_out_of_bounds_checked());
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}
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