ScOptionsGlsl

Options for the GLSL compiler

struct ScOptionsGlsl {

uint ver;

bool es;

bool forceTemporary;

bool vulkanSemantics;

bool separateShaderObjects;

bool flattenMultidimensionalArrays;

bool enable420PackExtension;

bool vertFixupClipspace;

bool vertFlipY;

bool vertSupportNonzeroBaseInstance;

GlslPrecision fragDefaultFloatPrecision;

GlslPrecision fragDefaultIntPrecision;

}

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Variables

enable420PackExtension bool enable420PackExtension;: For older desktop GLSL targets than version 420, the GL_ARB_shading_language_420pack extensions is used to be able to support layout(binding) on UBOs and samplers. If disabled on older targets, binding decorations will be stripped.
es bool es;: Emit the OpenGL ES shading language instead of desktop OpenGL.
flattenMultidimensionalArrays bool flattenMultidimensionalArrays;: Flattens multidimensional arrays, e.g. float fooa b c into single-dimensional arrays, e.g. float foo[a * b * c]. This function does not change the actual SPIRType of any object. Only the generated code, including declarations of interface variables are changed to be single array dimension.
forceTemporary bool forceTemporary;: Debug option to always emit temporary variables for all expressions.
fragDefaultFloatPrecision GlslPrecision fragDefaultFloatPrecision;: Add precision mediump float in ES targets when emitting GLES source.
fragDefaultIntPrecision GlslPrecision fragDefaultIntPrecision;: Add precision highp int in ES targets when emitting GLES source.
separateShaderObjects bool separateShaderObjects;: If true, gl_PerVertex is explicitly redeclared in vertex, geometry and tessellation shaders. The members of gl_PerVertex is determined by which built-ins are declared by the shader. This option is ignored in ES versions, as redeclaration in ES is not required, and it depends on a different extension (EXT_shader_io_blocks) which makes things a bit more fuzzy.
ver uint ver;: The shading language version. Corresponds to #version $VALUE.
vertFixupClipspace bool vertFixupClipspace;: GLSL: In vertex shaders, rewrite [0, w] depth (Vulkan/D3D style) to [-w, w] depth (GL style).
vertFlipY bool vertFlipY;: Inverts gl_Position.y or equivalent.
vertSupportNonzeroBaseInstance bool vertSupportNonzeroBaseInstance;: If true, the backend will assume that InstanceIndex will need to apply a base instance offset. Set to false if you know you will never use base instance functionality as it might remove some internal uniforms.
vulkanSemantics bool vulkanSemantics;: If true, Vulkan GLSL features are used instead of GL-compatible features. Mostly useful for debugging SPIR-V files.

ScOptionsGlsl

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Variables

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