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OpenGL2: Interleave vertex data for static MD3s.

This commit is contained in:
SmileTheory 2014-10-15 03:42:29 -07:00
parent 05e07311ba
commit 541d3a40c2
3 changed files with 132 additions and 83 deletions
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12
code/renderergl2/tr_glsl.c
View File

@ -1512,12 +1512,12 @@ void GLSL_VertexAttribPointers(uint32_t attribBits)
newFrame = glState.vertexAttribsNewFrame;
if (glState.vertexAnimation)
{
extraOffsets[ATTR_INDEX_POSITION] = newFrame * vao->size_xyz;
extraOffsets[ATTR_INDEX_POSITION2] = oldFrame * vao->size_xyz;
extraOffsets[ATTR_INDEX_NORMAL] = newFrame * vao->size_normal;
extraOffsets[ATTR_INDEX_NORMAL2] = oldFrame * vao->size_normal;
extraOffsets[ATTR_INDEX_TANGENT] = newFrame * vao->size_normal;
extraOffsets[ATTR_INDEX_TANGENT2] = oldFrame * vao->size_normal;
extraOffsets[ATTR_INDEX_POSITION] = newFrame * vao->frameSize;
extraOffsets[ATTR_INDEX_POSITION2] = oldFrame * vao->frameSize;
extraOffsets[ATTR_INDEX_NORMAL] = newFrame * vao->frameSize;
extraOffsets[ATTR_INDEX_NORMAL2] = oldFrame * vao->frameSize;
extraOffsets[ATTR_INDEX_TANGENT] = newFrame * vao->frameSize;
extraOffsets[ATTR_INDEX_TANGENT2] = oldFrame * vao->frameSize;
}
// this may not be bound if we're using VAOs

3
code/renderergl2/tr_local.h
View File

@ -125,8 +125,7 @@ typedef struct vao_s
int vertexesSize; // amount of memory data allocated for all vertices in bytes
vaoAttrib_t attribs[VAO_MAX_ATTRIBS];
uint32_t size_xyz;
uint32_t size_normal;
uint32_t frameSize; // bytes to skip per frame when doing vertex animation
uint32_t indexesIBO;
int indexesSize; // amount of memory data allocated for all triangles in bytes

160
code/renderergl2/tr_model.c
View File

@ -665,68 +665,122 @@ static qboolean R_LoadMD3(model_t * mod, int lod, void *buffer, int bufferSize,
surf = mdvModel->surfaces;
for (i = 0; i < mdvModel->numSurfaces; i++, vaoSurf++, surf++)
{
vec3_t *verts;
vec2_t *texcoords;
uint32_t *normals;
uint32_t offset_xyz, offset_st, offset_normal, offset_tangent;
uint32_t stride_xyz, stride_st, stride_normal, stride_tangent;
uint32_t dataSize, dataOfs;
uint8_t *data;
if (mdvModel->numFrames > 1)
{
// vertex animation, store texcoords first, then position/normal/tangents
offset_st = 0;
offset_xyz = surf->numVerts * sizeof(vec2_t);
offset_normal = offset_xyz + sizeof(vec3_t);
offset_tangent = offset_normal + sizeof(uint32_t);
stride_st = sizeof(vec2_t);
stride_xyz = sizeof(vec3_t) + sizeof(uint32_t);
#ifdef USE_VERT_TANGENT_SPACE
uint32_t *tangents;
stride_xyz += sizeof(uint32_t);
#endif
stride_normal = stride_tangent = stride_xyz;
byte *data;
int dataSize;
int ofs_xyz, ofs_normal, ofs_st;
dataSize = offset_xyz + surf->numVerts * mdvModel->numFrames * stride_xyz;
}
else
{
// no animation, interleave everything
offset_xyz = 0;
offset_st = offset_xyz + sizeof(vec3_t);
offset_normal = offset_st + sizeof(vec2_t);
offset_tangent = offset_normal + sizeof(uint32_t);
#ifdef USE_VERT_TANGENT_SPACE
int ofs_tangent;
stride_xyz = offset_tangent + sizeof(uint32_t);
#else
stride_xyz = offset_normal + sizeof(uint32_t);
#endif
stride_st = stride_normal = stride_tangent = stride_xyz;
dataSize = 0;
dataSize = surf->numVerts * stride_xyz;
}
ofs_xyz = dataSize;
dataSize += surf->numVerts * mdvModel->numFrames * sizeof(*verts);
ofs_normal = dataSize;
dataSize += surf->numVerts * mdvModel->numFrames * sizeof(*normals);
#ifdef USE_VERT_TANGENT_SPACE
ofs_tangent = dataSize;
dataSize += surf->numVerts * mdvModel->numFrames * sizeof(*tangents);
#endif
ofs_st = dataSize;
dataSize += surf->numVerts * sizeof(*texcoords);
data = ri.Malloc(dataSize);
dataOfs = 0;
verts = (void *)(data + ofs_xyz);
normals = (void *)(data + ofs_normal);
#ifdef USE_VERT_TANGENT_SPACE
tangents = (void *)(data + ofs_tangent);
#endif
texcoords = (void *)(data + ofs_st);
if (mdvModel->numFrames > 1)
{
st = surf->st;
for ( j = 0 ; j < surf->numVerts ; j++, st++ ) {
memcpy(data + dataOfs, &st->st, sizeof(st->st));
dataOfs += sizeof(st->st);
}
v = surf->verts;
for ( j = 0; j < surf->numVerts * mdvModel->numFrames ; j++, v++ )
{
#ifdef USE_VERT_TANGENT_SPACE
vec3_t nxt;
vec4_t tangent;
#endif
uint32_t *p;
VectorCopy(v->xyz, verts[j]);
// xyz
memcpy(data + dataOfs, &v->xyz, sizeof(v->xyz));
dataOfs += sizeof(v->xyz);
// normal
p = (uint32_t *)(data + dataOfs);
*p = R_VaoPackNormal(v->normal);
dataOfs += sizeof(uint32_t);
normals[j] = R_VaoPackNormal(v->normal);
#ifdef USE_VERT_TANGENT_SPACE
CrossProduct(v->normal, v->tangent, nxt);
VectorCopy(v->tangent, tangent);
tangent[3] = (DotProduct(nxt, v->bitangent) < 0.0f) ? -1.0f : 1.0f;
tangents[j] = R_VaoPackTangent(tangent);
// tangent
p = (uint32_t *)(data + dataOfs);
*p = R_VaoPackTangent(tangent);
dataOfs += sizeof(uint32_t);
#endif
}
}
else
{
v = surf->verts;
st = surf->st;
for ( j = 0 ; j < surf->numVerts ; j++, st++ ) {
texcoords[j][0] = st->st[0];
texcoords[j][1] = st->st[1];
for ( j = 0; j < surf->numVerts; j++, v++, st++ )
{
#ifdef USE_VERT_TANGENT_SPACE
vec3_t nxt;
vec4_t tangent;
#endif
uint32_t *p;
// xyz
memcpy(data + dataOfs, &v->xyz, sizeof(v->xyz));
dataOfs += sizeof(v->xyz);
// st
memcpy(data + dataOfs, &st->st, sizeof(st->st));
dataOfs += sizeof(st->st);
// normal
p = (uint32_t *)(data + dataOfs);
*p = R_VaoPackNormal(v->normal);
dataOfs += sizeof(uint32_t);
#ifdef USE_VERT_TANGENT_SPACE
CrossProduct(v->normal, v->tangent, nxt);
VectorCopy(v->tangent, tangent);
tangent[3] = (DotProduct(nxt, v->bitangent) < 0.0f) ? -1.0f : 1.0f;
// tangent
p = (uint32_t *)(data + dataOfs);
*p = R_VaoPackTangent(tangent);
dataOfs += sizeof(uint32_t);
#endif
}
}
vaoSurf->surfaceType = SF_VAO_MDVMESH;
@ -774,27 +828,23 @@ static qboolean R_LoadMD3(model_t * mod, int lod, void *buffer, int bufferSize,
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT2 ].normalized = GL_TRUE;
vaoSurf->vao->attribs[ATTR_INDEX_TEXCOORD ].normalized = GL_FALSE;
vaoSurf->vao->attribs[ATTR_INDEX_POSITION ].offset = ofs_xyz;
vaoSurf->vao->attribs[ATTR_INDEX_POSITION ].stride = sizeof(*verts);
vaoSurf->vao->attribs[ATTR_INDEX_POSITION2 ].offset = ofs_xyz;
vaoSurf->vao->attribs[ATTR_INDEX_POSITION2 ].stride = sizeof(*verts);
vaoSurf->vao->attribs[ATTR_INDEX_POSITION ].offset = offset_xyz;
vaoSurf->vao->attribs[ATTR_INDEX_POSITION2 ].offset = offset_xyz;
vaoSurf->vao->attribs[ATTR_INDEX_TEXCOORD ].offset = offset_st;
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL ].offset = offset_normal;
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL2 ].offset = offset_normal;
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT ].offset = offset_tangent;
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT2 ].offset = offset_tangent;
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL ].offset = ofs_normal;
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL ].stride = sizeof(*normals);
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL2 ].offset = ofs_normal;
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL2 ].stride = sizeof(*normals);
vaoSurf->vao->attribs[ATTR_INDEX_POSITION ].stride = stride_xyz;
vaoSurf->vao->attribs[ATTR_INDEX_POSITION2 ].stride = stride_xyz;
vaoSurf->vao->attribs[ATTR_INDEX_TEXCOORD ].stride = stride_st;
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL ].stride = stride_normal;
vaoSurf->vao->attribs[ATTR_INDEX_NORMAL2 ].stride = stride_normal;
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT ].stride = stride_tangent;
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT2 ].stride = stride_tangent;
#ifdef USE_VERT_TANGENT_SPACE
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT ].offset = ofs_tangent;
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT ].stride = sizeof(*tangents);
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT2 ].offset = ofs_tangent;
vaoSurf->vao->attribs[ATTR_INDEX_TANGENT2 ].stride = sizeof(*tangents);
#endif
vaoSurf->vao->attribs[ATTR_INDEX_TEXCOORD ].offset = ofs_st;
vaoSurf->vao->attribs[ATTR_INDEX_TEXCOORD ].stride = sizeof(*st);
vaoSurf->vao->size_xyz = sizeof(*verts) * surf->numVerts;
vaoSurf->vao->size_normal = sizeof(*normals) * surf->numVerts;
vaoSurf->vao->frameSize = stride_xyz * surf->numVerts;
Vao_SetVertexPointers(vaoSurf->vao);