void SoftwareTransform(
int prim, int vertexCount, u32 vertType, u16 *&inds, int indexType,
const DecVtxFormat &decVtxFormat, int &maxIndex, TransformedVertex *&drawBuffer, int &numTrans, bool &drawIndexed, const SoftwareTransformParams *params, SoftwareTransformResult *result) {
u8 *decoded = params->decoded;
FramebufferManagerCommon *fbman = params->fbman;
TextureCacheCommon *texCache = params->texCache;
TransformedVertex *transformed = params->transformed;
TransformedVertex *transformedExpanded = params->transformedExpanded;
float ySign = 1.0f;
bool throughmode = (vertType & GE_VTYPE_THROUGH_MASK) != 0;
bool lmode = gstate.isUsingSecondaryColor() && gstate.isLightingEnabled();
// TODO: Split up into multiple draw calls for GLES 2.0 where you can't guarantee support for more than 0x10000 verts.
#if defined(MOBILE_DEVICE)
if (vertexCount > 0x10000/3)
vertexCount = 0x10000/3;
#endif
float uscale = 1.0f;
float vscale = 1.0f;
if (throughmode) {
uscale /= gstate_c.curTextureWidth;
vscale /= gstate_c.curTextureHeight;
}
bool skinningEnabled = vertTypeIsSkinningEnabled(vertType);
const int w = gstate.getTextureWidth(0);
const int h = gstate.getTextureHeight(0);
float widthFactor = (float) w / (float) gstate_c.curTextureWidth;
float heightFactor = (float) h / (float) gstate_c.curTextureHeight;
Lighter lighter(vertType);
float fog_end = getFloat24(gstate.fog1);
float fog_slope = getFloat24(gstate.fog2);
// Same fixup as in ShaderManager.cpp
if (my_isinf(fog_slope)) {
// not really sure what a sensible value might be.
fog_slope = fog_slope < 0.0f ? -10000.0f : 10000.0f;
}
if (my_isnan(fog_slope)) {
// Workaround for https://github.com/hrydgard/ppsspp/issues/5384#issuecomment-38365988
// Just put the fog far away at a large finite distance.
// Infinities and NaNs are rather unpredictable in shaders on many GPUs
// so it's best to just make it a sane calculation.
fog_end = 100000.0f;
fog_slope = 1.0f;
}
VertexReader reader(decoded, decVtxFormat, vertType);
if (throughmode) {
for (int index = 0; index < maxIndex; index++) {
// Do not touch the coordinates or the colors. No lighting.
reader.Goto(index);
// TODO: Write to a flexible buffer, we don't always need all four components.
TransformedVertex &vert = transformed[index];
reader.ReadPos(vert.pos);
if (reader.hasColor0()) {
reader.ReadColor0_8888(vert.color0);
} else {
vert.color0_32 = gstate.getMaterialAmbientRGBA();
}
if (reader.hasUV()) {
reader.ReadUV(vert.uv);
vert.u *= uscale;
vert.v *= vscale;
} else {
vert.u = 0.0f;
vert.v = 0.0f;
}
// Ignore color1 and fog, never used in throughmode anyway.
// The w of uv is also never used (hardcoded to 1.0.)
}
} else {
// Okay, need to actually perform the full transform.
for (int index = 0; index < maxIndex; index++) {
reader.Goto(index);
float v[3] = {0, 0, 0};
Vec4f c0 = Vec4f(1, 1, 1, 1);
Vec4f c1 = Vec4f(0, 0, 0, 0);
float uv[3] = {0, 0, 1};
float fogCoef = 1.0f;
// We do software T&L for now
float out[3];
float pos[3];
Vec3f normal(0, 0, 1);
Vec3f worldnormal(0, 0, 1);
reader.ReadPos(pos);
if (!skinningEnabled) {
Vec3ByMatrix43(out, pos, gstate.worldMatrix);
if (reader.hasNormal()) {
reader.ReadNrm(normal.AsArray());
if (gstate.areNormalsReversed()) {
normal = -normal;
}
Norm3ByMatrix43(worldnormal.AsArray(), normal.AsArray(), gstate.worldMatrix);
worldnormal = worldnormal.Normalized();
}
} else {
float weights[8];
reader.ReadWeights(weights);
if (reader.hasNormal())
reader.ReadNrm(normal.AsArray());
// Skinning
Vec3f psum(0, 0, 0);
Vec3f nsum(0, 0, 0);
for (int i = 0; i < vertTypeGetNumBoneWeights(vertType); i++) {
if (weights[i] != 0.0f) {
Vec3ByMatrix43(out, pos, gstate.boneMatrix+i*12);
Vec3f tpos(out);
psum += tpos * weights[i];
if (reader.hasNormal()) {
Vec3f norm;
Norm3ByMatrix43(norm.AsArray(), normal.AsArray(), gstate.boneMatrix+i*12);
nsum += norm * weights[i];
}
}
}
// Yes, we really must multiply by the world matrix too.
Vec3ByMatrix43(out, psum.AsArray(), gstate.worldMatrix);
if (reader.hasNormal()) {
normal = nsum;
if (gstate.areNormalsReversed()) {
normal = -normal;
}
Norm3ByMatrix43(worldnormal.AsArray(), normal.AsArray(), gstate.worldMatrix);
worldnormal = worldnormal.Normalized();
}
}
// Perform lighting here if enabled. don't need to check through, it's checked above.
Vec4f unlitColor = Vec4f(1, 1, 1, 1);
if (reader.hasColor0()) {
reader.ReadColor0(&unlitColor.x);
} else {
unlitColor = Vec4f::FromRGBA(gstate.getMaterialAmbientRGBA());
}
if (gstate.isLightingEnabled()) {
float litColor0[4];
float litColor1[4];
lighter.Light(litColor0, litColor1, unlitColor.AsArray(), out, worldnormal);
// Don't ignore gstate.lmode - we should send two colors in that case
for (int j = 0; j < 4; j++) {
c0[j] = litColor0[j];
}
if (lmode) {
// Separate colors
for (int j = 0; j < 4; j++) {
c1[j] = litColor1[j];
}
} else {
// Summed color into c0 (will clamp in ToRGBA().)
for (int j = 0; j < 4; j++) {
c0[j] += litColor1[j];
}
}
} else {
if (reader.hasColor0()) {
for (int j = 0; j < 4; j++) {
c0[j] = unlitColor[j];
}
} else {
c0 = Vec4f::FromRGBA(gstate.getMaterialAmbientRGBA());
}
if (lmode) {
// c1 is already 0.
}
}
float ruv[2] = {0.0f, 0.0f};
if (reader.hasUV())
reader.ReadUV(ruv);
// Perform texture coordinate generation after the transform and lighting - one style of UV depends on lights.
switch (gstate.getUVGenMode()) {
case GE_TEXMAP_TEXTURE_COORDS: // UV mapping
case GE_TEXMAP_UNKNOWN: // Seen in Riviera. Unsure of meaning, but this works.
// We always prescale in the vertex decoder now.
uv[0] = ruv[0];
uv[1] = ruv[1];
uv[2] = 1.0f;
break;
case GE_TEXMAP_TEXTURE_MATRIX:
{
// Projection mapping
Vec3f source;
switch (gstate.getUVProjMode()) {
case GE_PROJMAP_POSITION: // Use model space XYZ as source
source = pos;
break;
case GE_PROJMAP_UV: // Use unscaled UV as source
source = Vec3f(ruv[0], ruv[1], 0.0f);
break;
case GE_PROJMAP_NORMALIZED_NORMAL: // Use normalized normal as source
source = normal.Normalized();
if (!reader.hasNormal()) {
ERROR_LOG_REPORT(G3D, "Normal projection mapping without normal?");
}
break;
case GE_PROJMAP_NORMAL: // Use non-normalized normal as source!
source = normal;
if (!reader.hasNormal()) {
ERROR_LOG_REPORT(G3D, "Normal projection mapping without normal?");
}
break;
}
float uvw[3];
Vec3ByMatrix43(uvw, &source.x, gstate.tgenMatrix);
uv[0] = uvw[0];
uv[1] = uvw[1];
uv[2] = uvw[2];
}
break;
case GE_TEXMAP_ENVIRONMENT_MAP:
// Shade mapping - use two light sources to generate U and V.
{
Vec3f lightpos0 = Vec3f(&lighter.lpos[gstate.getUVLS0() * 3]).Normalized();
Vec3f lightpos1 = Vec3f(&lighter.lpos[gstate.getUVLS1() * 3]).Normalized();
uv[0] = (1.0f + Dot(lightpos0, worldnormal))/2.0f;
uv[1] = (1.0f + Dot(lightpos1, worldnormal))/2.0f;
uv[2] = 1.0f;
}
break;
default:
// Illegal
ERROR_LOG_REPORT(G3D, "Impossible UV gen mode? %d", gstate.getUVGenMode());
break;
}
uv[0] = uv[0] * widthFactor;
uv[1] = uv[1] * heightFactor;
// Transform the coord by the view matrix.
Vec3ByMatrix43(v, out, gstate.viewMatrix);
fogCoef = (v[2] + fog_end) * fog_slope;
// TODO: Write to a flexible buffer, we don't always need all four components.
memcpy(&transformed[index].x, v, 3 * sizeof(float));
transformed[index].fog = fogCoef;
memcpy(&transformed[index].u, uv, 3 * sizeof(float));
transformed[index].color0_32 = c0.ToRGBA();
transformed[index].color1_32 = c1.ToRGBA();
// The multiplication by the projection matrix is still performed in the vertex shader.
// So is vertex depth rounding, to simulate the 16-bit depth buffer.
}
}
// Here's the best opportunity to try to detect rectangles used to clear the screen, and
// replace them with real clears. This can provide a speedup on certain mobile chips.
//
// An alternative option is to simply ditch all the verts except the first and last to create a single
// rectangle out of many. Quite a small optimization though.
// Experiment: Disable on PowerVR (see issue #6290)
// TODO: This bleeds outside the play area in non-buffered mode. Big deal? Probably not.
bool reallyAClear = false;
if (maxIndex > 1 && prim == GE_PRIM_RECTANGLES && gstate.isModeClear()) {
int scissorX2 = gstate.getScissorX2() + 1;
int scissorY2 = gstate.getScissorY2() + 1;
reallyAClear = IsReallyAClear(transformed, maxIndex, scissorX2, scissorY2);
}
if (reallyAClear && gl_extensions.gpuVendor != GPU_VENDOR_POWERVR) { // && g_Config.iRenderingMode != FB_NON_BUFFERED_MODE) {
// If alpha is not allowed to be separate, it must match for both depth/stencil and color. Vulkan requires this.
bool alphaMatchesColor = gstate.isClearModeColorMask() == gstate.isClearModeAlphaMask();
bool depthMatchesStencil = gstate.isClearModeAlphaMask() == gstate.isClearModeDepthMask();
if (params->allowSeparateAlphaClear || (alphaMatchesColor && depthMatchesStencil)) {
result->color = transformed[1].color0_32;
// Need to rescale from a [0, 1] float. This is the final transformed value.
result->depth = ToScaledDepth((s16)(int)(transformed[1].z * 65535.0f));
result->action = SW_CLEAR;
return;
}
}
// This means we're using a framebuffer (and one that isn't big enough.)
if (gstate_c.curTextureHeight < (u32)h && maxIndex >= 2) {
// Even if not rectangles, this will detect if either of the first two are outside the framebuffer.
// HACK: Adding one pixel margin to this detection fixes issues in Assassin's Creed : Bloodlines,
// while still keeping BOF working (see below).
const float invTexH = 1.0f / gstate_c.curTextureHeight; // size of one texel.
bool tlOutside;
bool tlAlmostOutside;
bool brOutside;
// If we're outside heightFactor, then v must be wrapping or clamping. Avoid this workaround.
// If we're <= 1.0f, we're inside the framebuffer (workaround not needed.)
// We buffer that 1.0f a little more with a texel to avoid some false positives.
tlOutside = transformed[0].v <= heightFactor && transformed[0].v > 1.0f + invTexH;
brOutside = transformed[1].v <= heightFactor && transformed[1].v > 1.0f + invTexH;
// Careful: if br is outside, but tl is well inside, this workaround still doesn't make sense.
// We go with halfway, since we overestimate framebuffer heights sometimes but not by much.
tlAlmostOutside = transformed[0].v <= heightFactor && transformed[0].v >= 0.5f;
if (tlOutside || (brOutside && tlAlmostOutside)) {
// Okay, so we're texturing from outside the framebuffer, but inside the texture height.
// Breath of Fire 3 does this to access a render surface at an offset.
const u32 bpp = fbman->GetTargetFormat() == GE_FORMAT_8888 ? 4 : 2;
const u32 prevH = texCache->AttachedDrawingHeight();
const u32 fb_size = bpp * fbman->GetTargetStride() * prevH;
const u32 prevYOffset = gstate_c.curTextureYOffset;
if (texCache->SetOffsetTexture(fb_size)) {
const float oldWidthFactor = widthFactor;
const float oldHeightFactor = heightFactor;
widthFactor = (float) w / (float) gstate_c.curTextureWidth;
heightFactor = (float) h / (float) gstate_c.curTextureHeight;
// We've already baked in the old gstate_c.curTextureYOffset, so correct.
const float yDiff = (float) (prevH + prevYOffset - gstate_c.curTextureYOffset) / (float) h;
for (int index = 0; index < maxIndex; ++index) {
transformed[index].u *= widthFactor / oldWidthFactor;
// Inverse it back to scale to the new FBO, and add 1.0f to account for old FBO.
transformed[index].v = (transformed[index].v / oldHeightFactor - yDiff) * heightFactor;
}
}
}
}
// Step 2: expand rectangles.
drawBuffer = transformed;
numTrans = 0;
drawIndexed = false;
if (prim != GE_PRIM_RECTANGLES) {
// We can simply draw the unexpanded buffer.
numTrans = vertexCount;
drawIndexed = true;
} else {
bool useBufferedRendering = g_Config.iRenderingMode != FB_NON_BUFFERED_MODE;
if (useBufferedRendering)
ySign = -ySign;
float flippedMatrix[16];
if (!throughmode) {
memcpy(&flippedMatrix, gstate.projMatrix, 16 * sizeof(float));
const bool invertedY = useBufferedRendering ? (gstate_c.vpHeight < 0) : (gstate_c.vpHeight > 0);
if (invertedY) {
flippedMatrix[1] = -flippedMatrix[1];
flippedMatrix[5] = -flippedMatrix[5];
flippedMatrix[9] = -flippedMatrix[9];
flippedMatrix[13] = -flippedMatrix[13];
}
const bool invertedX = gstate_c.vpWidth < 0;
if (invertedX) {
flippedMatrix[0] = -flippedMatrix[0];
flippedMatrix[4] = -flippedMatrix[4];
flippedMatrix[8] = -flippedMatrix[8];
flippedMatrix[12] = -flippedMatrix[12];
}
}
//rectangles always need 2 vertices, disregard the last one if there's an odd number
vertexCount = vertexCount & ~1;
numTrans = 0;
drawBuffer = transformedExpanded;
TransformedVertex *trans = &transformedExpanded[0];
const u16 *indsIn = (const u16 *)inds;
u16 *newInds = inds + vertexCount;
u16 *indsOut = newInds;
maxIndex = 4 * vertexCount;
for (int i = 0; i < vertexCount; i += 2) {
const TransformedVertex &transVtxTL = transformed[indsIn[i + 0]];
const TransformedVertex &transVtxBR = transformed[indsIn[i + 1]];
// We have to turn the rectangle into two triangles, so 6 points.
// This is 4 verts + 6 indices.
// bottom right
trans[0] = transVtxBR;
// top right
trans[1] = transVtxBR;
trans[1].y = transVtxTL.y;
trans[1].v = transVtxTL.v;
// top left
trans[2] = transVtxBR;
trans[2].x = transVtxTL.x;
trans[2].y = transVtxTL.y;
trans[2].u = transVtxTL.u;
trans[2].v = transVtxTL.v;
// bottom left
trans[3] = transVtxBR;
trans[3].x = transVtxTL.x;
trans[3].u = transVtxTL.u;
// That's the four corners. Now process UV rotation.
if (throughmode)
RotateUVThrough(trans);
else
RotateUV(trans, flippedMatrix, ySign);
// Triangle: BR-TR-TL
indsOut[0] = i * 2 + 0;
indsOut[1] = i * 2 + 1;
indsOut[2] = i * 2 + 2;
// Triangle: BL-BR-TL
indsOut[3] = i * 2 + 3;
indsOut[4] = i * 2 + 0;
indsOut[5] = i * 2 + 2;
trans += 4;
indsOut += 6;
numTrans += 6;
}
inds = newInds;
drawIndexed = true;
// We don't know the color until here, so we have to do it now, instead of in StateMapping.
// Might want to reconsider the order of things later...
if (gstate.isModeClear() && gstate.isClearModeAlphaMask()) {
result->setStencil = true;
if (vertexCount > 1) {
// Take the bottom right alpha value of the first rect as the stencil value.
// Technically, each rect could individually fill its stencil, but most of the
// time they use the same one.
result->stencilValue = transformed[indsIn[1]].color0[3];
} else {
result->stencilValue = 0;
}
}
}
result->action = SW_DRAW_PRIMITIVES;
}
BlenderMeshExample(int argc, const char* argv[])
: prog()
, camera_matrix(prog, "CameraMatrix")
, light_position(prog, "LightPosition")
, camera_position(prog, "CameraPosition")
, face_normals(prog, "FaceNormals")
, element_count(0)
{
using namespace oglplus;
VertexShader vs;
vs.Source(
"#version 330\n"
"uniform mat4 CameraMatrix, ProjectionMatrix;"
"uniform vec3 LightPosition, CameraPosition;"
"mat4 Matrix = ProjectionMatrix * CameraMatrix;"
"in vec3 Position;"
"in vec3 Normal;"
"out vec3 vertNormal;"
"out vec3 vertLightDir;"
"out vec3 vertViewDir;"
"void main(void)"
"{"
" vertNormal = Normal;"
" vertLightDir = LightPosition - Position;"
" vertViewDir = CameraPosition - Position;"
" gl_Position = Matrix * vec4(Position, 1.0);"
"}"
);
vs.Compile();
prog.AttachShader(vs);
GeometryShader gs;
gs.Source(
"#version 330\n"
"layout (triangles) in;"
"layout (triangle_strip, max_vertices=3) out;"
"uniform bool FaceNormals;"
"in vec3 vertNormal[3];"
"in vec3 vertLightDir[3];"
"in vec3 vertViewDir[3];"
"out vec3 geomNormal;"
"out vec3 geomLightDir;"
"out vec3 geomViewDir;"
"void main(void)"
"{"
" vec3 fn;"
" if(FaceNormals)"
" {"
" vec3 p0 = gl_in[0].gl_Position.xyz;"
" vec3 p1 = gl_in[1].gl_Position.xyz;"
" vec3 p2 = gl_in[2].gl_Position.xyz;"
" fn = normalize(cross(p1-p0, p2-p0));"
" }"
" for(int v=0; v!=3; ++v)"
" {"
" gl_Position = gl_in[v].gl_Position;"
" if(FaceNormals) geomNormal = fn;"
" else geomNormal = vertNormal[v];"
" geomLightDir = vertLightDir[v];"
" geomViewDir = vertViewDir[v];"
" EmitVertex();"
" }"
" EndPrimitive();"
"}"
);
gs.Compile();
prog.AttachShader(gs);
FragmentShader fs;
fs.Source(
"#version 330\n"
"in vec3 geomNormal;"
"in vec3 geomLightDir;"
"in vec3 geomViewDir;"
"out vec3 fragColor;"
"void main(void)"
"{"
" vec3 LightColor = vec3(1.0, 1.0, 1.0);"
" vec3 MatColor = vec3(0.5, 0.5, 0.5);"
" vec3 LightRefl = reflect(-geomLightDir, geomNormal);"
" float Ambient = 0.3;"
" float Diffuse = max(dot("
" normalize(geomNormal),"
" normalize(geomLightDir)"
" ), 0.0);"
" float Contour = pow((1.0 - max(dot("
" normalize(geomNormal),"
" normalize(geomViewDir)"
" )-0.1, 0.0))*1.05, 4.0);"
" float Specular = pow(clamp(dot("
" normalize(geomViewDir),"
" normalize(LightRefl)"
" )+0.005, 0.0, 0.98), 64.0);"
" fragColor = MatColor * LightColor * (Contour + Diffuse + Ambient)+"
" LightColor * Specular;"
"}"
);
fs.Compile();
prog.AttachShader(fs);
prog.Link();
prog.Use();
gl.PrimitiveRestartIndex(0);
// vectors with vertex position and normals
// the values at index 0 is unused
// 0 is used as primitive restart index
std::vector<GLfloat> pos_data(3, 0.0);
std::vector<GLfloat> nml_data(3, 0.0);
// index offset starting at 1
GLuint index_offset = 1;
// vectors with vertex indices
std::vector<GLuint> idx_data(1, 0);
// open an input stream
std::ifstream input(argc>1? argv[1]: "./test.blend");
// check if we succeeded
if(!input.good())
throw std::runtime_error("Error opening file for reading");
// parse the input stream
imports::BlendFile blend_file(input);
// get the file's global block
auto glob_block = blend_file.StructuredGlobalBlock();
// get the default scene
auto scene_data = blend_file[glob_block.curscene];
//
// get the pointer to the first object in the scene
auto object_link_ptr = scene_data.Field<void*>("base.first").Get();
// and go through the whole list of objects
while(object_link_ptr)
{
// for each list element open the linked list block
auto object_link_data = blend_file[object_link_ptr];
// get the pointer to its object
auto object_ptr = object_link_data.Field<void*>("object").Get();
// open the object block (if any)
if(object_ptr) try
{
auto object_data = blend_file[object_ptr];
// get the data pointer
auto object_data_ptr = object_data.Field<void*>("data").Get();
// open the data block (if any)
if(object_data_ptr)
{
auto object_data_data = blend_file[object_data_ptr];
// if it is a mesh
if(object_data_data.StructureName() == "Mesh")
{
// get the object matrix field
auto object_obmat_field = object_data.Field<float>("obmat");
// make a transformation matrix
Mat4f obmat(
object_obmat_field.Get(0, 0),
object_obmat_field.Get(0, 4),
object_obmat_field.Get(0, 8),
object_obmat_field.Get(0,12),
object_obmat_field.Get(0, 1),
object_obmat_field.Get(0, 5),
object_obmat_field.Get(0, 9),
object_obmat_field.Get(0,13),
object_obmat_field.Get(0, 2),
object_obmat_field.Get(0, 6),
object_obmat_field.Get(0,10),
object_obmat_field.Get(0,14),
object_obmat_field.Get(0, 3),
object_obmat_field.Get(0, 7),
object_obmat_field.Get(0,11),
object_obmat_field.Get(0,15)
);
// the number of vertices
std::size_t n_verts = 0;
// get the vertex block pointer
auto vertex_ptr = object_data_data.Field<void*>("mvert").Get();
// open the vertex block (if any)
if(vertex_ptr)
{
auto vertex_data = blend_file[vertex_ptr];
// get the number of vertices in the block
n_verts = vertex_data.BlockElementCount();
// get the vertex coordinate and normal fields
auto vertex_co_field = vertex_data.Field<float>("co");
auto vertex_no_field = vertex_data.Field<short>("no");
// make two vectors of position and normal data
std::vector<GLfloat> ps(3 * n_verts);
std::vector<GLfloat> ns(3 * n_verts);
for(std::size_t v=0; v!=n_verts; ++v)
{
// (transpose y and z axes)
// get the positional coordinates
Vec4f position(
vertex_co_field.Get(v, 0),
vertex_co_field.Get(v, 1),
vertex_co_field.Get(v, 2),
1.0f
);
Vec4f newpos = obmat * position;
ps[3*v+0] = newpos.x();
ps[3*v+1] = newpos.z();
ps[3*v+2] =-newpos.y();
// get the normals
Vec4f normal(
vertex_no_field.Get(v, 0),
vertex_no_field.Get(v, 1),
vertex_no_field.Get(v, 2),
0.0f
);
Vec4f newnorm = obmat * normal;
ns[3*v+0] = newnorm.x();
ns[3*v+1] = newnorm.z();
ns[3*v+2] =-newnorm.y();
}
// append the values
pos_data.insert(pos_data.end(), ps.begin(), ps.end());
nml_data.insert(nml_data.end(), ns.begin(), ns.end());
}
// get the face block pointer
auto face_ptr = object_data_data.Field<void*>("mface").Get();
// open the face block (if any)
if(face_ptr)
{
auto face_data = blend_file[face_ptr];
// get the number of faces in the block
std::size_t n_faces = face_data.BlockElementCount();
// get the vertex index fields of the face
auto face_v1_field = face_data.Field<int>("v1");
auto face_v2_field = face_data.Field<int>("v2");
auto face_v3_field = face_data.Field<int>("v3");
auto face_v4_field = face_data.Field<int>("v4");
// make a vector of index data
std::vector<GLuint> is(5 * n_faces);
for(std::size_t f=0; f!=n_faces; ++f)
{
// get face vertex indices
int v1 = face_v1_field.Get(f);
int v2 = face_v2_field.Get(f);
int v3 = face_v3_field.Get(f);
int v4 = face_v4_field.Get(f);
is[5*f+0] = v1+index_offset;
is[5*f+1] = v2+index_offset;
is[5*f+2] = v3+index_offset;
is[5*f+3] = v4?v4+index_offset:0;
is[5*f+4] = 0; // primitive restart index
}
// append the values
idx_data.insert(idx_data.end(), is.begin(), is.end());
}
// get the poly block pointer
auto poly_ptr = object_data_data.TryGet<void*>("mpoly", nullptr);
// and the loop block pointer
auto loop_ptr = object_data_data.TryGet<void*>("mloop", nullptr);
// open the poly and loop blocks (if we have both)
if(poly_ptr && loop_ptr)
{
auto poly_data = blend_file[poly_ptr];
auto loop_data = blend_file[loop_ptr];
// get the number of polys in the block
std::size_t n_polys = poly_data.BlockElementCount();
// get the fields of poly and loop
auto poly_loopstart_field = poly_data.Field<int>("loopstart");
auto poly_totloop_field = poly_data.Field<int>("totloop");
auto loop_v_field = loop_data.Field<int>("v");
// make a vector of index data
std::vector<GLuint> is;
for(std::size_t f=0; f!=n_polys; ++f)
{
int ls = poly_loopstart_field.Get(f);
int tl = poly_totloop_field.Get(f);
for(int l=0; l!=tl; ++l)
{
int v = loop_v_field.Get(ls+l);
is.push_back(v+index_offset);
}
is.push_back(0); // primitive restart index
}
// append the values
idx_data.insert(idx_data.end(), is.begin(), is.end());
}
index_offset += n_verts;
}
}
}
catch(...)
{ }
// and get the pointer to the nex block
object_link_ptr = object_link_data.Field<void*>("next").Get();
}
meshes.Bind();
positions.Bind(Buffer::Target::Array);
{
Buffer::Data(Buffer::Target::Array, pos_data);
VertexAttribArray attr(prog, "Position");
attr.Setup<GLfloat>(3);
attr.Enable();
}
normals.Bind(Buffer::Target::Array);
{
Buffer::Data(Buffer::Target::Array, nml_data);
VertexAttribArray attr(prog, "Normal");
attr.Setup<GLfloat>(3);
attr.Enable();
}
indices.Bind(Buffer::Target::ElementArray);
Buffer::Data(Buffer::Target::ElementArray, idx_data);
element_count = idx_data.size();
// find the extremes of the mesh(es)
GLfloat min_x = pos_data[3], max_x = pos_data[3];
GLfloat min_y = pos_data[4], max_y = pos_data[4];
GLfloat min_z = pos_data[5], max_z = pos_data[5];
for(std::size_t v=1, vn=pos_data.size()/3; v!=vn; ++v)
{
GLfloat x = pos_data[v*3+0];
GLfloat y = pos_data[v*3+1];
GLfloat z = pos_data[v*3+2];
if(min_x > x) min_x = x;
if(min_y > y) min_y = y;
if(min_z > z) min_z = z;
if(max_x < x) max_x = x;
if(max_y < y) max_y = y;
if(max_z < z) max_z = z;
}
// position the camera target
camera_target = Vec3f(
(min_x + max_x) * 0.5,
(min_y + max_y) * 0.5,
(min_z + max_z) * 0.5
);
// and calculate a good value for camera distance
camera_distance = 1.1*Distance(camera_target, Vec3f(min_x, min_y, min_z))+1.0;
gl.ClearColor(0.17f, 0.22f, 0.17f, 0.0f);
gl.ClearDepth(1.0f);
gl.Enable(Capability::DepthTest);
gl.Enable(Capability::PrimitiveRestart);
}
void CollisionOutline_Impl::calculate_penetration_depth( std::vector< CollidingContours > & collision_info )
{
// Figure out the pen-depth
for(std::vector<CollidingContours>::iterator it = collision_info.begin(); it != collision_info.end(); ++it)
{
CollidingContours &cc = (*it);
if(cc.points.size() % 2 != 0)
{
std::cout << "ERROR: we have an uneven number of collisionpoints: " << cc.points.size() << "\n";
for(std::vector<CollisionPoint>::iterator pit = cc.points.begin(); pit != cc.points.end(); ++pit)
{
CollisionPoint &p1 = (*pit);
std::cout << "\tLineSegment1:"
<< "(" << cc.contour1->get_points()[p1.contour1_line_start].x
<< "," << cc.contour1->get_points()[p1.contour1_line_start].y << ") - "
<< "(" << cc.contour1->get_points()[p1.contour1_line_end].x
<< "," << cc.contour1->get_points()[p1.contour1_line_end].y << ")\n";
std::cout << "\tLineSegment2:"
<< "(" << cc.contour2->get_points()[p1.contour2_line_start].x
<< "," << cc.contour2->get_points()[p1.contour2_line_start].y << ") - "
<< "(" << cc.contour2->get_points()[p1.contour2_line_end].x
<< "," << cc.contour2->get_points()[p1.contour2_line_end].y << ")\n";
std::cout << "\tColPoint: ("<<p1.point.x<<","<<p1.point.y<<")\n";
std::cout << "\tColNormal: ("<<p1.normal.x<<","<<p1.normal.y<<")\n";
std::cout << "\tis_entry: " << p1.is_entry <<"\n";
std::cout << "\tcontour1_line_start: "<<p1.contour1_line_start<<", "
<<"contour1_line_end: "<<p1.contour1_line_end<<",\n"
<<"\tcontour2_line_start: "<<p1.contour2_line_start<<", "
<<"contour2_line_end: "<<p1.contour2_line_end <<"\n";
}
std::cout << "RORRE\n";
continue;
}
// First calculate one common normal for the whole thing
// FIXME: oposing normals might generate (0,0) as normal, and that can not be right.
Vec4f normal;
unsigned int cp;
for(cp = 0; cp < cc.points.size(); cp+=2)
{
std::vector<Pointf> c1points;
std::vector<Pointf> c2points;
int firstpoint = cp;
if(!cc.points[firstpoint].is_entry)
firstpoint++;
CollisionPoint p1 = cc.points[firstpoint % cc.points.size()];
CollisionPoint p2 = cc.points[(firstpoint+1) % cc.points.size()];
normal.x += -(p1.point - p2.point).y;
normal.y += (p1.point - p2.point).x;
}
normal.normalize3();
cc.penetration_normal = Pointf(normal.x, normal.y);
// Now look at each and every overlapping region
cc.penetration_depth = 0.0;
for(unsigned int cp2 = 0; cp2 < cc.points.size(); cp2+=2)
{
std::vector<Pointf> c1points;
std::vector<Pointf> c2points;
int firstpoint = cp2;
if(!cc.points[firstpoint].is_entry)
firstpoint++;
CollisionPoint p1 = cc.points[firstpoint % cc.points.size()];
CollisionPoint p2 = cc.points[(firstpoint+1) % cc.points.size()];
// Get points inside on c1
c1points.push_back(p2.point - p1.point);
c1points.push_back(p1.point - p1.point);
for(int p4 = p1.contour1_line_end; p4 != p2.contour1_line_end; p4 = ((p4+1) % cc.contour1->get_points().size()))
{
c1points.push_back(cc.contour1->get_points()[p4] - p1.point);
//c1points.push_back(cc.contour1->points[p]);
}
// Get points inside on c2
c2points.push_back(p2.point - p1.point);
c2points.push_back(p1.point - p1.point);
for(int p6 = p2.contour2_line_end; p6 != p1.contour2_line_end; p6 = ((p6+1) % cc.contour2->get_points().size()))
{
c2points.push_back(cc.contour2->get_points()[p6] - p1.point);
//c2points.push_back(cc.contour2->points[p]);
}
// Calculate the penetration-depth of this overlap
float c1maxdepth = FLT_MAX;
float c2maxdepth = FLT_MIN;
for(unsigned int p5 = 0; p5 < c1points.size(); p5++)
{
// The dotproduct is the projection onto an other vector
float newdepth = c1points[p5].x * normal.x + c1points[p5].y * normal.y;
if(newdepth < c1maxdepth)
{
cc.contour1_deep_point = c1points[p5] + p1.point;
c1maxdepth = newdepth;
}
}
for(unsigned int p = 0; p < c2points.size(); p++)
{
// The dotproduct is the projection onto an other vector
float newdepth = c2points[p].x * normal.x + c2points[p].y * normal.y;
if(newdepth > c2maxdepth)
{
cc.contour2_deep_point = c2points[p] + p1.point;
c2maxdepth = newdepth;
}
}
cc.penetration_depth = max(cc.penetration_depth, c2maxdepth - c1maxdepth);
}
//NONO: maxpendepth = std::min(maxpendepth, 40.0f);
}
}
SmartTextureObjectData createPyramidNormalMap( const math::Vec2ui& size
, const math::Vec2ui& pyramidTiles
, float pyramidHeight ) //Depth of a pyramid in texel space
{
SmartTextureObjectData texture = new TextureObjectData;
unsigned int texWidth = size[0];
unsigned int texHeight = size[1];
texture->m_size = size;
texture->m_data.resize(size[0] * size[1]);
//Texel lengths in texture space
Vec2f incr( 1.0f / texWidth, 1.0f / texHeight );
//Dimensions of one pyramid
unsigned int pyramidIX = texWidth / pyramidTiles[0];
unsigned int pyramidIY = texHeight / pyramidTiles[1];
//Calculate all four occurring normals of the pyramid ahead of time
Vec4f wNormalLeft = Vec4f( -pyramidHeight, 0.0f, 0.5f * incr[0] * pyramidIX, 0.0f);
Vec4f wNormalRight = Vec4f( pyramidHeight, 0.0f, 0.5f * incr[0] * pyramidIX, 0.0f);
Vec4f wNormalTop = Vec4f( 0.0f, pyramidHeight, 0.5f * incr[1] * pyramidIY, 0.0f);
Vec4f wNormalBottom = Vec4f( 0.0f, -pyramidHeight, 0.5f * incr[1] * pyramidIY, 0.0f);
//Normalize our normals
wNormalLeft.normalize();
wNormalRight.normalize();
wNormalTop.normalize();
wNormalBottom.normalize();
//Clamp our normals to [0, 1]
wNormalLeft = 0.5f*wNormalLeft + Vec4f(0.5f, 0.5f, 0.5f, 0.0f);
wNormalRight = 0.5f*wNormalRight + Vec4f(0.5f, 0.5f, 0.5f, 0.0f);
wNormalTop = 0.5f*wNormalTop + Vec4f(0.5f, 0.5f, 0.5f, 0.0f);
wNormalBottom = 0.5f*wNormalBottom + Vec4f(0.5f, 0.5f, 0.5f, 0.0f);
for(unsigned int iy = 0; iy < texHeight; iy++)
{
//Get our vertical texel position relative to the center of the current pyramid tile
int iyrel = iy % pyramidIY - pyramidIY / 2;
for(unsigned int ix = 0; ix < texWidth; ix++)
{
//Get our horizontal texel position relative to the center of the current pyramid tile
int ixrel = ix % pyramidIX - pyramidIX / 2;
unsigned int curTexel = iy * texWidth + ix;
//Assign the appropriate normal according to what face of the pyramid we're on
if( iyrel > abs(ixrel) )
{
texture->m_data[curTexel] = wNormalTop;
}
else if( iyrel > ixrel )
{
texture->m_data[curTexel] = wNormalLeft;
}
else if( iyrel > -ixrel )
{
texture->m_data[curTexel] = wNormalRight;
}
else
{
texture->m_data[curTexel] = wNormalBottom;
}
}
}
return texture;
}
void ShaderProgramGl::setUniform(const string &name, const Vec4f &value){
assertGl();
glUniform4fvARB(getLocation(name), 1, value.ptr());
assertGl();
}
inline float PlaneDistance(Vec4f plane, Vec3f p)
{
return dot(plane.AsVec3(), p) + plane[3];
}
ref_ptr<Group> VBSPGeometry::createGeometry()
{
ref_ptr<Group> rootGroup;
ref_ptr<Geode> geode;
ref_ptr<Geometry> geometry;
Vec4f color;
ref_ptr<Vec4Array> colorArray;
// Create the root group (we'll attach everything to this group and
// return it)
rootGroup = new Group();
// Create a geode for the geometries
geode = new Geode();
rootGroup->addChild(geode.get());
// See if there are any regular (non-displaced) faces to render
if (primitive_set->size() > 0)
{
// Create a geometry object for the regular surfaces
geometry = new Geometry();
// Add the vertex attributes
geometry->setVertexArray(vertex_array.get());
geometry->setNormalArray(normal_array.get(), Array::BIND_PER_VERTEX);
geometry->setTexCoordArray(0, texcoord_array.get());
// Add an overall color
color.set(1.0, 1.0, 1.0, 1.0);
colorArray = new Vec4Array(1, &color);
geometry->setColorArray(colorArray.get(), Array::BIND_OVERALL);
// Add our primitive set to the geometry
geometry->addPrimitiveSet(primitive_set.get());
// Add the geometry to the geode
geode->addDrawable(geometry.get());
// Now, stripify the geode to convert the POLYGON primitives to
// triangle strips
osgUtil::TriStripVisitor tsv;
geode->accept(tsv);
tsv.stripify();
}
// Now do the same for the displacement surfaces (if any)
if (disp_primitive_set->size() > 0)
{
// Create a geometry object for the regular surfaces
geometry = new Geometry();
// Add the vertex attributes
geometry->setVertexArray(disp_vertex_array.get());
geometry->setNormalArray(disp_normal_array.get(), Array::BIND_PER_VERTEX);
geometry->setColorArray(disp_vertex_attr_array.get(), Array::BIND_PER_VERTEX);
geometry->setTexCoordArray(0, disp_texcoord_array.get());
geometry->setTexCoordArray(1, disp_texcoord_array.get());
// Add our primitive set to the geometry
geometry->addPrimitiveSet(disp_primitive_set.get());
// Add the geometry to the geode
geode->addDrawable(geometry.get());
}
// Return the root group
return rootGroup;
}
void Shader::uniformF(const std::string &name, const Vec4f &v)
{
glf->glUniform4f(uniform(name), v.x(), v.y(), v.z(), v.w());
}
static inline void changeGenFunc( GLenum oldfunc,
Node *oldbeacon,
GLenum coord,
GLenum gen,
GLenum func,
const Vec4f &plane,
Node *beacon,
Matrix &cameraMat,
UInt32 eyeMode,
Matrix &eyeMatrix)
{
#if !defined(OSG_OGL_COREONLY) || defined(OSG_CHECK_COREONLY)
if(beacon != NULL)
{
Matrix beaconMat;
beacon->getToWorld(beaconMat);
beaconMat.multLeft(cameraMat);
glPushMatrix();
glLoadMatrixf(beaconMat.getValues());
glTexGenfv(coord,
GL_EYE_PLANE,
const_cast<GLfloat *>(plane.getValues()));
glTexGeni(coord, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
glPopMatrix();
if(oldfunc == GL_NONE && oldbeacon == NULL)
glEnable(gen);
}
else if(func == GL_EYE_LINEAR)
{
glPushMatrix();
switch(eyeMode)
{
case TexGenChunk::EyeModelViewIdentity:
glLoadIdentity();
break;
case TexGenChunk::EyeModelViewStored:
glLoadMatrixf(eyeMatrix.getValues());
break;
case TexGenChunk::EyeModelViewCamera:
glLoadMatrixf(cameraMat.getValues());
break;
default:
break;
}
glTexGenfv(coord,
GL_EYE_PLANE,
const_cast<GLfloat *>(plane.getValues()));
glTexGeni(coord, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
glPopMatrix();
if(oldfunc == GL_NONE && oldbeacon == NULL)
glEnable(gen);
}
else if(func != GL_NONE)
{
glTexGeni(coord, GL_TEXTURE_GEN_MODE, func);
if(func == GL_OBJECT_LINEAR)
{
glTexGenfv(coord,
GL_OBJECT_PLANE,
const_cast<GLfloat *>(plane.getValues()));
}
if(oldfunc == GL_NONE && oldbeacon == NULL)
glEnable(gen);
}
else if(oldfunc != GL_NONE || oldbeacon != NULL)
{
glDisable(gen);
}
#endif
}
void PhysicsPlaneGeom::setParams(const Vec4f &value )
{
PhysicsPlaneGeomPtr tmpPtr(*this);
dGeomPlaneSetParams(tmpPtr->id, value.x(), value.y(), value.z(), value.w());
PhysicsPlaneGeomBase::setParams(value);
}
void mitk::VtkModel::DrawOpenGLGroup(int group, bool)
{
using sofa::core::loader::Material;
using sofa::defaulttype::ResizableExtVector;
using sofa::defaulttype::Vec4f;
const VecCoord& vertices = this->getVertices();
const ResizableExtVector<Deriv>& normals = this->getVnormals();
const ResizableExtVector<Triangle>& triangles = this->getTriangles();
const ResizableExtVector<Quad>& quads = this->getQuads();
FaceGroup faceGroup;
if (group == -1)
{
faceGroup.nbt = triangles.size();
faceGroup.nbq = quads.size();
}
else
{
faceGroup = groups.getValue()[group];
}
Material material = faceGroup.materialId != -1
? materials.getValue()[faceGroup.materialId]
: this->material.getValue();
if (material.useTexture && material.activated)
{
m_Textures[faceGroup.materialId]->Load(m_VtkRenderer);
glEnable(GL_TEXTURE_2D);
glTexCoordPointer(2, GL_FLOAT, 0, reinterpret_cast<const GLvoid*>(vertices.size() * sizeof(VecCoord::value_type) + normals.size() * sizeof(Deriv)));
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
}
Vec4f ambient = material.useAmbient ? material.ambient : Vec4f();
Vec4f diffuse = material.useDiffuse ? material.diffuse : Vec4f();
Vec4f specular = material.useSpecular ? material.specular : Vec4f();
Vec4f emissive = material.useEmissive ? material.emissive : Vec4f();
float shininess = material.useShininess ? std::min(material.shininess, 128.0f) : 45.0f;
if (shininess == 0.0f)
{
specular.clear();
shininess = 1.0f;
}
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, ambient.ptr());
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diffuse.ptr());
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, specular.ptr());
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, emissive.ptr());
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shininess);
if (faceGroup.nbt != 0)
glDrawElements(GL_TRIANGLES, faceGroup.nbt * 3, GL_UNSIGNED_INT, reinterpret_cast<const GLvoid*>(faceGroup.tri0 * sizeof(Triangle)));
if (faceGroup.nbq != 0)
glDrawElements(GL_QUADS, faceGroup.nbq * 4, GL_UNSIGNED_INT, reinterpret_cast<const GLvoid*>(triangles.size() * sizeof(Triangle) + faceGroup.quad0 * sizeof(Quad)));
if (material.useTexture && material.activated)
{
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_TEXTURE_2D);
m_Textures[faceGroup.materialId]->PostRender(m_VtkRenderer);
}
}
void Render::RenderScene(Camera* pCamera, Scene* pScene,
Texture* pRenderColor, Texture* pRenderDepth) {
if(m_multiPass && m_pSlicedQuaxol && m_pOverdrawQuaxol
&& pRenderDepth && pRenderColor) {
// 1st pass of color, depth to ([eyefbo,colorfbo], [eyedepth,depthfbo])
glDisable(GL_BLEND);
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GEQUAL, 0.2f);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
glDepthMask(GL_TRUE);
WasGLErrorPlusPrint();
m_pSlicedQuaxol->StartUsing();
// TODO: calc this from the block size and the w near and far
// currently tuned for -40 near, 40 far, 10 blocksize
static Vec4f sliceRange(0.456f, 0.556f, 0.0f, 0.0f);
GLuint hSliceShaderRange = m_pSlicedQuaxol->getUniform("sliceRange");
if(hSliceShaderRange != -1) {
glUniform4fv(hSliceShaderRange, 1, sliceRange.raw());
WasGLErrorPlusPrint();
}
m_pSlicedQuaxol->StopUsing();
//float savedWnear = pCamera->_wNear;
//float savedWfar = pCamera->_wFar;
//float savedWratio = pCamera->_wScreenSizeRatio;
//static float sliceAmount = 0.334f;
//float wRange = pCamera->_wFar - pCamera->_wNear;
//float wPreNear = (1.0f - sliceAmount) * 0.5f * wRange;
//pCamera->SetWProjection(savedWnear + wPreNear, savedWfar - wPreNear, 1.0f /*ratio*/);
pScene->RenderQuaxols(pCamera, m_pSlicedQuaxol);
pScene->RenderGroundPlane(pCamera);
//pCamera->SetWProjection(savedWnear, savedWfar, savedWratio);
// 2nd pass of depth - offset <= color blend to (overdrawfbo)
glBindFramebuffer(GL_FRAMEBUFFER, m_overdrawColor->m_framebuffer_id);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, m_overdrawColor->m_texture_id, 0);
//glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
// GL_TEXTURE_2D, m_overdrawDepth->m_texture_id, 0); // waste?
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
// good opportunity to do order independent alpha
// but first the stupid way
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glDisable(GL_ALPHA_TEST);
glDisable(GL_DEPTH_TEST);
glDepthFunc(GL_ALWAYS);
glDepthMask(GL_FALSE);
WasGLErrorPlusPrint();
m_pOverdrawQuaxol->StartUsing();
GLuint hOverdrawShaderRange = m_pOverdrawQuaxol->getUniform("sliceRange");
if(hOverdrawShaderRange != -1) {
glUniform4fv(hOverdrawShaderRange, 1, sliceRange.raw());
}
m_pOverdrawQuaxol->StopUsing();
GLint hDepthTex = m_pOverdrawQuaxol->getUniform("texDepth");
if(hDepthTex != -1) {
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, pRenderDepth->GetTextureID());
WasGLErrorPlusPrint();
//glUniform1i(hDepthTex, 1);
//WasGLErrorPlusPrint();
}
pScene->RenderQuaxols(pCamera, m_pOverdrawQuaxol);
//// 3rd additive fullscreen render overlay
//// with capped blending to ([eyefbo,bb])
//RenderCompose(pCamera, pRenderColor, m_overdrawColor);
// restore depth mask
glDepthMask(GL_TRUE);
} else {
pScene->RenderEverything(pCamera);
}
}
