WebMay 3, 2024 · 3 Answers Sorted by: 44 What causes branching in GLSL depends on the GPU model and OpenGL driver version. Most GPUs seem to have a form of "select one of two values" operation that has no branching cost: n = (a==b) ? x : y; and sometimes even things like: if (a==b) { n = x; m = y; } else { n = y; m = x; } WebThere are two forms of the index which can be selected by clicking at the top of the navigation bar on the left side: a traditional flat index combining the API commands and GLSL functions, and an accordion-style index with separate sections for commands and functions. The flat index also includes per-letter section links.
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WebAug 9, 2011 · Each component is compared to 0.2 using the built-in function greaterThan, and the result is stored in the bool vector toDiscard. The greaterThan function compares the two vectors component-wise, and stores the Boolean results in the corresponding components of the return value. WebGLSL greaterThan man page GLSL 4.20.8 specification, section 8.7 Vector Relational Functions. ... Because of language incompatibilities between C++ and GLSL, GLM defines the function not but not_ instead. Template Parameters. vecType: Boolean vector types. See Also GLSL not man page dust mite mattress cover reviews
greaterThan - GLSL 4 - docs.gl
WebgreaterThanEqual — perform a component-wise greater-than-or-equal comparison of two vectors. Declaration. bvec greaterThanEqual(vec x, vec y); bvec greaterThanEqual(ivec x, ivec y); bvec greaterThanEqual(uvec x, uvec y); Parameters. x. Specifies the first vector to be used in the comparison operation. y. Specifies the second vector to be used ... Web// GLSL的函数是支持重载的。 函数可以同名但其参数类型或者参数个数不同即可 float noise (in vec2 pt, in float value) { return snoise (pt) * 0.5 + value; } void main () { float r = noise (gl_FragCoord.xy * 0.01); float g = noise (gl_FragCoord.xy * 0.01 + 100.0); float b = noise (gl_FragCoord.xy * 0.01 + 300.0); gl_FragColor = vec4 (r, g, b, 1); } 4.2内置函数 角和三 … WebThe above code can be 2 or 3 move instructions, depending on the compiler and the GPU's capabilities. Newer GPUs can handle setting different parts of gl_FragColor, but older … dust mite pillow covers 4 pack