VertexDef boot_vert_def()
{
boot_vert* proxy = 0;
VertexDef VD = CreateVertexDef(sizeof(boot_vert), 2);
int i = 0;
AddVertexAttribute(VD, i++, VERTEX_POSITION_ATTR, (size_t)&proxy->location, 3, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_UV_ATTR, (size_t)&proxy->uv, 2, GL_FLOAT);
return VD;
}
VertexDef boot_vert_def()
{
boot_vert* proxy = 0;
VertexDef VD = CreateVertexDef(sizeof(boot_vert), 3);
int i = 0;
AddVertexAttribute(VD, i++, VERTEX_POSITION_ATTR, (size_t)&proxy->location, 3, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_NORMAL_ATTR, (size_t)&proxy->normal, 3, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_COLOR_ATTR, (size_t)&proxy->color, 4, GL_FLOAT);
return VD;
}
VertexDef editor_vert_def()
{
editor_vert* proxy = 0;
VertexDef VD = CreateVertexDef(sizeof(editor_vert), 1);
int i = 0;
AddVertexAttribute(VD, i++, VERTEX_POSITION_ATTR, (size_t)&proxy->location, 3, GL_FLOAT);
return VD;
}
tVertexDescription::tVertexDescription( const tMesh& mesh )
{
int offsetInBytes = 0;
int strideInBytes = 0;
// Position attribute
tVertexAttribute attribute = mesh.AttributeCopy(tVertexAttribute::eVAT_Position);
if( attribute.Type() != tVertexAttribute::eVAT_Null )
{
offsetInBytes += AddVertexAttribute(attribute, offsetInBytes, strideInBytes);
}
// Color attribute
attribute = mesh.AttributeCopy(tVertexAttribute::eVAT_Color);
if( attribute.Type() != tVertexAttribute::eVAT_Null )
{
offsetInBytes += AddVertexAttribute(attribute, offsetInBytes, strideInBytes);
}
// Normal attribute
attribute = mesh.AttributeCopy(tVertexAttribute::eVAT_Normal);
if( attribute.Type() != tVertexAttribute::eVAT_Null )
{
offsetInBytes += AddVertexAttribute(attribute, offsetInBytes, strideInBytes);
}
// TexCoord attributes
int numberOfTexCoordAttributes = mesh.NumberOfTextureStages();
for(int i = 0; i < numberOfTexCoordAttributes; ++i)
{
attribute = mesh.AttributeCopy(tVertexAttribute::eVAT_TextureCoord, i);
if( attribute.Type() != tVertexAttribute::eVAT_Null )
{
offsetInBytes += AddVertexAttribute(attribute, offsetInBytes, strideInBytes);
}
}
}
// Depricated.
VertexDef obj_vert_def_depr()
{
obj_vert* proxy = 0;
VertexDef VD = CreateVertexDef(sizeof(obj_vert), 7);
int i = 0;
AddVertexAttribute(VD, i++, VERTEX_POSITION_ATTR, (size_t)&proxy->location, 3, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_NORMAL_ATTR, (size_t)&proxy->normal, 3, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_UV_ATTR, (size_t)&proxy->uv, 2, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_COLOR_ATTR, (size_t)&proxy->diffuse, 3, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR_0, (size_t)&proxy->ambient, 3, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR_1, (size_t)&proxy->specular, 4, GL_FLOAT);
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR_2, (size_t)&proxy->emissive, 4, GL_FLOAT);
return VD;
}
VertexDef obj_vert_def()
{
obj_vert* proxy = 0;
VertexDef VD = CreateVertexDef(sizeof(obj_vert), 7);
int i = 0;
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR, (size_t)&proxy->location, 3, GL_FLOAT, "in_vertex");
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR, (size_t)&proxy->normal, 3, GL_FLOAT, "in_normal");
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR, (size_t)&proxy->uv, 2, GL_FLOAT, "in_uv");
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR, (size_t)&proxy->diffuse, 3, GL_FLOAT, "in_color");
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR, (size_t)&proxy->ambient, 3, GL_FLOAT, "in_ambient");
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR, (size_t)&proxy->specular, 4, GL_FLOAT, "in_specular");
AddVertexAttribute(VD, i++, VERTEX_OTHER_ATTR, (size_t)&proxy->emissive, 4, GL_FLOAT, "in_emissive");
return VD;
}
static void ReadOBJ(const char *filename) {
FILE *fp = fopen(filename, "r");
if (fp == NULL)
sreFatalError("Could not open file %s.", filename);
for (;;) {
char *str = GetWords(fp);
if (str == NULL)
// End of file.
break;
RemoveComments();
if (nu_words == 0)
continue;
int command = - 1;
if (strcmp(words[0], "v") == 0)
command = 0;
else if (strcmp(words[0], "vn") == 0)
command = 1;
else if (strcmp(words[0], "vt") == 0)
command = 2;
else if (strcmp(words[0], "f") == 0)
command = 3;
if (command < 0)
// First word not recognized.
continue;
if (command <= 2) {
// Get up to four coordinates.
float coord[4];
int n = GetCoordinates(1, coord);
if (command == 0)
AddVertexAttribute(SRE_ATTRIBUTE_POSITION, coord, n);
else if (command == 1)
AddVertexAttribute(SRE_ATTRIBUTE_NORMAL, coord, n);
else
AddVertexAttribute(SRE_ATTRIBUTE_TEXCOORDS, coord, n);
}
else {
// Face defition.
BeginFace(4, SRE_POSITION_MASK | SRE_NORMAL_MASK | SRE_TEXCOORDS_MASK);
for (int word_index = 1; word_index < nu_words; word_index++) {
int vertex_index[3];
DecodeOBJFaceIndices(words[word_index], vertex_index);
for (int k = 0; k < 3; k++) {
// Special value INT_MAX means not used; AddFace expects - 1
// for unused attributes.
if (vertex_index[k] == INT_MAX)
vertex_index[k] = - 1;
else {
if (vertex_index[k] > 0)
// Regular index; counting starts at 1 in OBJ files.
vertex_index[k]--;
else if (vertex_index[k] < 0)
// Negative numer is relative index.
vertex_index[k] += nu_attribute_vertices[OBJ_attributes[k]];
else
ModelFileReadError("Vertex index of 0 not allowed in OBJ file");
}
}
AddFaceVertex(OBJ_attributes, vertex_index);
}
EndFace();
}
}
fclose(fp);
}
