使用Vukan 模糊的核心代码如下,可参考 ImageProcessor.cpp boolImageProcessor::blur(floatradius,intoutputIndex){RET_CHECK(1.0f<=radius&&radius<=25.0f);//高斯模糊配置,在后文 GLSL 同样 适用constexprfloate=2.718281828459045f;constexprfloatpi=3.1415926535897932f;floatsigma=0.4f*radius+0.6f;floatcoeff1=1.0f...
*/ if (lowering(DIV_TO_MUL_RCP) && (ir->type->is_float() || ir->type->is_double())) div_to_mul_rcp(div_expr); ir_expression *const floor_expr = new(ir) ir_expression(ir_unop_floor, x->type, div_expr); if (lowering(DOPS_TO_DFRAC) && ir->type->is_double()) dfloor...
GLSL着色器语言的基本使用，以及如何通过编写自定义的着色器程序来实现图片的转场效果。
const glsl_type *type) { ir_variable *x = in_var(type, "x"); ir_variable *i = out_var(type, "i"); MAKE_SIG(type, avail, 2, x, i); ir_variable *t = body.make_temp(type, "t"); body.emit(assign(t, expr(ir_unop_trunc, x))); body.emit(assign(i, t)); body.emit...
return expr; } @@ -15695,17 +15699,22 @@ string CompilerGLSL::type_to_glsl_constructor(const SPIRType &type) // depend on a specific object's use of that type. string CompilerGLSL::type_to_glsl(const SPIRType &type, uint32_t id) ...
#include<metal_stdlib>#include<simd/simd.h>usingnamespacemetal;float4sample(consttexture2d<float>t,float2uv) {constexprsamplers(filter::nearest);returnt.sample(s,uv); }float4sample(consttexture2d<float>t,float2uv,constsamplers) {returnt.sample(s,uv); }structgpuc{// float4 sample(texture2d,...
Lower them to arithmetic and bit manipulation expressions. v2: - Rewrite using ir_builder. [for idr] - In lowering packHalf2x16, don't truncate subnormal float16 values to zero. And round to even rather than to zero. [for stereotype441] ...
virtual void emit_push_constant_block(const SPIRVariable &var); virtual void emit_uniform(const SPIRVariable &var); virtual std::string unpack_expression_type(std::string expr_str, const SPIRType &type, uint32_t physical_type_id, bool packed_type, bool row_major); virtual bool built...
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SPIRV-Cross is a practical tool and library for performing reflection on SPIR-V and disassembling SPIR-V back to high level languages. - SPIRV-Cross/spirv_glsl.hpp at main · AlexOct/SPIRV-Cross