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glgsg: send fog parameters to GLSL shaders

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Closes #438
This commit is contained in:
Brian Lach 2018-11-05 21:16:33 +01:00 committed by rdb
parent b13c4fb8d1
commit da05ef1f5c
1 changed files with 72 additions and 0 deletions
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72
panda/src/glstuff/glShaderContext_src.cxx
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@ -1145,6 +1145,78 @@ reflect_uniform(int i, char *name_buffer, GLsizei name_buflen) {
}
return;
}
if (size > 4 && noprefix.substr(0, 4) == "Fog.") {
Shader::ShaderMatSpec bind;
bind._id = arg_id;
bind._func = Shader::SMF_first;
bind._arg[0] = nullptr;
bind._dep[0] = Shader::SSD_general | Shader::SSD_fog;
bind._part[1] = Shader::SMO_identity;
bind._arg[1] = nullptr;
bind._dep[1] = Shader::SSD_NONE;
if (noprefix == "Fog.color") {
bind._part[0] = Shader::SMO_attr_fogcolor;
if (param_type == GL_FLOAT_VEC3) {
bind._piece = Shader::SMP_row3x3;
} else if (param_type == GL_FLOAT_VEC4) {
bind._piece = Shader::SMP_row3;
} else {
GLCAT.error()
<< "p3d_Fog.color should be vec3 or vec4\n";
return;
}
} else if (noprefix == "Fog.density") {
bind._part[0] = Shader::SMO_attr_fog;
if (param_type == GL_FLOAT) {
bind._piece = Shader::SMP_row3x1;
} else {
GLCAT.error()
<< "p3d_Fog.density should be float\n";
return;
}
} else if (noprefix == "Fog.start") {
bind._part[0] = Shader::SMO_attr_fog;
if (param_type == GL_FLOAT) {
bind._piece = Shader::SMP_cell13;
} else {
GLCAT.error()
<< "p3d_Fog.start should be float\n";
return;
}
} else if (noprefix == "Fog.end") {
bind._part[0] = Shader::SMO_attr_fog;
if (param_type == GL_FLOAT) {
bind._piece = Shader::SMP_cell14;
} else {
GLCAT.error()
<< "p3d_Fog.end should be float\n";
return;
}
} else if (noprefix == "Fog.scale") {
bind._part[0] = Shader::SMO_attr_fog;
if (param_type == GL_FLOAT) {
bind._piece = Shader::SMP_cell15;
} else {
GLCAT.error()
<< "p3d_Fog.scale should be float\n";
return;
}
}
_shader->_mat_spec.push_back(bind);
_shader->_mat_deps |= bind._dep[0];
return;
}
if (noprefix == "LightModel.ambient") {
Shader::ShaderMatSpec bind;
bind._id = arg_id;