LibCinder：着色器参数的默认变量名称

Question

我一直在努力 OpenGL guide for libCinder，尤其是着色器部分。

不幸的是，libCinder 不使用 OpenGL 变量名称作为顶点和片段着色器的默认输入。例如，gl_position 被重新映射为 ciPosition。

谁能提供一个列表，其中包含从 OpenGL 到 libCinder 输入变量名称的映射？

Answer 1

这不是最干净的方法，但你可以在源代码中看到它们here:

sDefaultAttribNameToSemanticMap["ciPosition"] = geom::Attrib::POSITION;
sDefaultAttribNameToSemanticMap["ciNormal"] = geom::Attrib::NORMAL;
sDefaultAttribNameToSemanticMap["ciTangent"] = geom::Attrib::TANGENT;
sDefaultAttribNameToSemanticMap["ciBitangent"] = geom::Attrib::BITANGENT;
sDefaultAttribNameToSemanticMap["ciTexCoord0"] = geom::Attrib::TEX_COORD_0;
sDefaultAttribNameToSemanticMap["ciTexCoord1"] = geom::Attrib::TEX_COORD_1;
sDefaultAttribNameToSemanticMap["ciTexCoord2"] = geom::Attrib::TEX_COORD_2;
sDefaultAttribNameToSemanticMap["ciTexCoord3"] = geom::Attrib::TEX_COORD_3;
sDefaultAttribNameToSemanticMap["ciColor"] = geom::Attrib::COLOR;
sDefaultAttribNameToSemanticMap["ciBoneIndex"] = geom::Attrib::BONE_INDEX;
sDefaultAttribNameToSemanticMap["ciBoneWeight"] = geom::Attrib::BONE_WEIGHT;

还有：

sDefaultUniformNameToSemanticMap["ciModelMatrix"] = UNIFORM_MODEL_MATRIX;
sDefaultUniformNameToSemanticMap["ciModelMatrixInverse"] = UNIFORM_MODEL_MATRIX_INVERSE;
sDefaultUniformNameToSemanticMap["ciModelMatrixInverseTranspose"] = UNIFORM_MODEL_MATRIX_INVERSE_TRANSPOSE;
sDefaultUniformNameToSemanticMap["ciViewMatrix"] = UNIFORM_VIEW_MATRIX;
sDefaultUniformNameToSemanticMap["ciViewMatrixInverse"] = UNIFORM_VIEW_MATRIX_INVERSE;
sDefaultUniformNameToSemanticMap["ciModelView"] = UNIFORM_MODEL_VIEW;
sDefaultUniformNameToSemanticMap["ciModelViewInverse"] = UNIFORM_MODEL_VIEW_INVERSE;
sDefaultUniformNameToSemanticMap["ciModelViewInverseTranspose"] = UNIFORM_MODEL_VIEW_INVERSE_TRANSPOSE;
sDefaultUniformNameToSemanticMap["ciModelViewProjection"] = UNIFORM_MODEL_VIEW_PROJECTION;
sDefaultUniformNameToSemanticMap["ciModelViewProjectionInverse"] = UNIFORM_MODEL_VIEW_PROJECTION_INVERSE;
sDefaultUniformNameToSemanticMap["ciProjectionMatrix"] = UNIFORM_PROJECTION_MATRIX;
sDefaultUniformNameToSemanticMap["ciProjectionMatrixInverse"] = UNIFORM_PROJECTION_MATRIX_INVERSE;
sDefaultUniformNameToSemanticMap["ciViewProjection"] = UNIFORM_VIEW_PROJECTION;
sDefaultUniformNameToSemanticMap["ciNormalMatrix"] = UNIFORM_NORMAL_MATRIX;
sDefaultUniformNameToSemanticMap["ciViewportMatrix"] = UNIFORM_VIEWPORT_MATRIX;
sDefaultUniformNameToSemanticMap["ciWindowSize"] = UNIFORM_WINDOW_SIZE;
sDefaultUniformNameToSemanticMap["ciElapsedSeconds"] = UNIFORM_ELAPSED_SECONDS;

LibCinder：着色器参数的默认变量名称

LibCinder: Default Variable Names for Shader Parameters

c++

opengl

cinder