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GlslViewer DEFINES
Beside the defines you can pass as an argument using -D[define]
you can relay on the following native defines automatically generated for you. Remember you can always use the defines
commands to have a sense of all the active define flags, their values on each shader/subshader
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GLSLVIEWER <GLSLVIEWER_VERSION_WOUT_DOTS>
: you can use it to tell your shader it's being render in GlslViewer.
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PLATFORM_OSX
: added only on MacOS/OSX platforms. -
PLATFORM_RPI
: added only on RaspberryPi devices. -
PLATFORM_LINUX
: added only in i86 and 64bit Linux platforms. -
PLATFORM_WEBGL
: added only on WASM or WebGL platforms.
The following defines fork and reuse the same shader program in different buffers
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BUFFER_[NUMBER]
: added extra buffer passes through branching subshader. Each time you add auniform sampler2D u_buffer[NUMBER];
, glslViewer will run another version of the same shader code but with the#define BUFFER_[NUMBER]
on top and save the content intou_buffer[NUMBER]
texture buffer. This way you can code different passes with a single source file. Please take a look to this examples to see how this works. -
DOUBLE_BUFFER_[NUMBER]
: added extra double buffer (for PingPong passes) through branching subshader. Each time you add auniform sampler2D u_doubleBuffer[NUMBER];
, glslViewer will run another version of the same shader code but with the#define DOUBLE_BUFFER_[NUMBER]
on top and save the content intou_buffer[NUMBER]
texture buffer. This way you can code different Ping-Pong passes with a single source file. Please take a look to this examples to see how this works. -
PYRAMID_[NUMBER]
: perform Convolution Pyramids to the content of a buffer where the result will be stored asuniform sampler2D u_pyramid[NUMBER]
. Please take a look to this examples to see how this works. For advance use is possible to overwrite the up/down scaling shaders using#ifdef PYRAMID_ALGORITHM
and the uniforms:
uniform sampler2D u_pyramidTex0;
uniform sampler2D u_pyramidTex1;
uniform bool u_pyramidUpscaling;
The following defines fork and reuse the same shader program in different passes
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BACKGROUND
: added a background subshader when rendering a 3D geometry. -
FLOOR
: add a floor geometry and fork the behavior of the shader to render the floor using it -
POSTPROCESSING
: added a post-processing pass where the main scene have been render touniform sampler2D u_scene;
anduniform sampler2D u_sceneDepth;
.
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MODEL_NAME_<NAME>
: only OBJ file import a name. Default isMODEL_NAME_MESH
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MODEL_VERTEX_COLOR
: if the model have a vertex color attribute will be follow by the name of the attribute (Default:a_color
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MODEL_VERTEX_NORMAL: if the model have a vertex normal attribute will be follow by the name of the attribute (Default:
a_normal`) -
MODEL_VERTEX_TEXCOORD
: if the model have a vertex normal attribute will be follow by the name of the attribute (Default:a_texcoord
) -
MODEL_VERTEX_TANGENT
: if the model have a vertex normal attribute will be follow by the name of the attribute (Default:a_tangent
)
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MATERIAL_NAME_[NAME]
: only OBJ file import a name. Default isMATERIAL_NAME_DEFAULT
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MATERIAL_ILLUM
: integer between 0 to 10. Specs from here
0 Color on and Ambient off
1 Color on and Ambient on
2 Highlight on
3 Reflection on and Ray trace on
4 Transparency: Glass on
Reflection: Ray trace on
5 Reflection: Fresnel on and Ray trace on
6 Transparency: Refraction on
Reflection: Fresnel off and Ray trace on
7 Transparency: Refraction on
Reflection: Fresnel on and Ray trace on
8 Reflection on and Ray trace off
9 Transparency: Glass on
Reflection: Ray trace off
10 Casts shadows onto invisible surfaces
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MATERIAL_AMBIENT
: the color asvec3
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MATERIAL_AMBIENTMAP
: the name of asampler2D
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MATERIAL_BASECOLOR
: a color asvec3
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MATERIAL_BASECOLORMAP
: the name of asampler2D
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MATERIAL_SPECULAR
: a color asvec3
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MATERIAL_SPECULARMAP
: the name of asampler2D
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MATERIAL_ROUGHNESS
: a normalize float value -
MATERIAL_ROUGHNESSMAP
: the name of asampler2D
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MATERIAL_METALLIC
: a normalize float value -
MATERIAL_METALLICMAP
: the name of asampler2D
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MATERIAL_SHININESS
: a scallar factor for speculars -
MATERIAL_SHEEN
: a normalize float value -
MATERIAL_SHEENMAP
: the name of asampler2D
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MATERIAL_SPECULAR_HIGHLIGHTMAP
: the name of asampler2D
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MATERIAL_REFLECTIONMAP
: the name of asampler2D
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MATERIAL_CLEARCOAT_THICKNESS
: a normalize float value -
MATERIAL_CLEARCOAT_ROUGHNESS
: a normalize float value -
MATERIAL_ANISOTROPY
: a normalize float value -
MATERIAL_ANISOTROPY_ROTATION
: float value -
MATERIAL_EMISSIVE
: a color asvec3
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MATERIAL_EMISSIVEMAP
: the name of asampler2D
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MATERIAL_NORMALMAP
: the name of asampler2D
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MATERIAL_BUMPMAP
: the name of asampler2D
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MATERIAL_DISPLACEMENTMAP
: the name of asampler2D
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MATERIAL_ALPHAMAP
: the name of asampler2D
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MATERIAL_TRANSMITTANCE
: a color asvec3
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MATERIAL_DISSOLVE
: a normalize float value -
MATERIAL_IOR
: a normalize float value