mirrors/bgfx
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'master' of github.com:bkaradzic/bgfx

Browse Source
This commit is contained in:
bkaradzic 2012-10-28 00:00:43 -07:00
commit 6492a17f82
2 changed files with 77 additions and 90 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

149
examples/06-bump/bump.cpp
View File

@ -71,7 +71,7 @@ uint32_t packF4u(float _x, float _y = 0.0f, float _z = 0.0f, float _w = 0.0f)
return packUint32(xx, yy, zz, ww);
}
void unpackF4u(float _result[3], uint32_t _packed)
void unpackF4u(float _result[4], uint32_t _packed)
{
uint8_t unpacked[4];
unpackUint32(unpacked, _packed);
@ -177,13 +177,12 @@ static const bgfx::Memory* loadTexture(const char* _name)
return load(filePath);
}
template<typename Ty>
void calcTangents(const uint16_t* _indices, uint32_t _numIndices, Ty* _vertices, uint16_t _numVertices)
{
float* tangents = new float[6*_numVertices];
memset(tangents, 0, 6*_numVertices*sizeof(float) );
float* tan = tangents;
template<typename Ty>
void calcTangents(const uint16_t* _indices, uint32_t _numIndices, Ty* _vertices, uint16_t _numVertices)
{
float* tangents = new float[6*_numVertices];
memset(tangents, 0, 6*_numVertices*sizeof(float) );
for (uint32_t ii = 0, num = _numIndices/3; ii < num; ++ii)
{
const uint16_t* indices = &_indices[ii*3];
@ -191,67 +190,67 @@ void calcTangents(const uint16_t* _indices, uint32_t _numIndices, Ty* _vertices,
const Ty& v1 = _vertices[indices[1] ];
const Ty& v2 = _vertices[indices[2] ];
const float bax = v1.m_x - v0.m_x;
const float bay = v1.m_y - v0.m_y;
const float baz = v1.m_z - v0.m_z;
const float bau = v1.m_u - v0.m_u;
const float bav = v1.m_v - v0.m_v;
const float cax = v2.m_x - v0.m_x;
const float cay = v2.m_y - v0.m_y;
const float caz = v2.m_z - v0.m_z;
const float cau = v2.m_u - v0.m_u;
const float cav = v2.m_v - v0.m_v;
const float det = (bau * cav - bav * cau);
const float invDet = 1.0f / det;
const float tx = (bax * cav - cax * bav) * invDet;
const float ty = (bay * cav - cay * bav) * invDet;
const float tz = (baz * cav - caz * bav) * invDet;
const float bx = (cax * bau - bax * cau) * invDet;
const float by = (cay * bau - bay * cau) * invDet;
const float bz = (caz * bau - baz * cau) * invDet;
for (uint32_t jj = 0; jj < 3; ++jj)
{
float* tanu = &tangents[indices[jj]*6];
float* tanv = &tanu[3];
tanu[0] += tx;
tanu[1] += ty;
tanu[2] += tz;
tanv[0] += bx;
tanv[1] += by;
tanv[2] += bz;
}
}
for (uint32_t ii = 0; ii < _numVertices; ++ii)
{
Ty& v0 = _vertices[ii];
const float* tanu = &tangents[ii*6];
const float* tanv = &tangents[ii*6 + 3];
float normal[3];
unpackF4u(normal, v0.m_normal);
float ndt = vec3Dot(normal, tanu);
float nxt[3];
vec3Cross(nxt, normal, tanu);
float tmp[3];
tmp[0] = tanu[0] - normal[0] * ndt;
tmp[1] = tanu[1] - normal[1] * ndt;
tmp[2] = tanu[2] - normal[2] * ndt;
float tangent[3];
vec3Norm(tangent, tmp);
float tw = vec3Dot(nxt, tanv) < 0.0f ? -1.0f : 1.0f;
v0.m_tangent = packF4u(tangent[0], tangent[1], tangent[2], tw);
}
const float bax = v1.m_x - v0.m_x;
const float bay = v1.m_y - v0.m_y;
const float baz = v1.m_z - v0.m_z;
const float bau = v1.m_u - v0.m_u;
const float bav = v1.m_v - v0.m_v;
const float cax = v2.m_x - v0.m_x;
const float cay = v2.m_y - v0.m_y;
const float caz = v2.m_z - v0.m_z;
const float cau = v2.m_u - v0.m_u;
const float cav = v2.m_v - v0.m_v;
const float det = (bau * cav - bav * cau);
const float invDet = 1.0f / det;
const float tx = (bax * cav - cax * bav) * invDet;
const float ty = (bay * cav - cay * bav) * invDet;
const float tz = (baz * cav - caz * bav) * invDet;
const float bx = (cax * bau - bax * cau) * invDet;
const float by = (cay * bau - bay * cau) * invDet;
const float bz = (caz * bau - baz * cau) * invDet;
for (uint32_t jj = 0; jj < 3; ++jj)
{
float* tanu = &tangents[indices[jj]*6];
float* tanv = &tanu[3];
tanu[0] += tx;
tanu[1] += ty;
tanu[2] += tz;
tanv[0] += bx;
tanv[1] += by;
tanv[2] += bz;
}
}
for (uint32_t ii = 0; ii < _numVertices; ++ii)
{
Ty& v0 = _vertices[ii];
const float* tanu = &tangents[ii*6];
const float* tanv = &tangents[ii*6 + 3];
float normal[4];
unpackF4u(normal, v0.m_normal);
float ndt = vec3Dot(normal, tanu);
float nxt[3];
vec3Cross(nxt, normal, tanu);
float tmp[3];
tmp[0] = tanu[0] - normal[0] * ndt;
tmp[1] = tanu[1] - normal[1] * ndt;
tmp[2] = tanu[2] - normal[2] * ndt;
float tangent[3];
vec3Norm(tangent, tmp);
float tw = vec3Dot(nxt, tanv) < 0.0f ? -1.0f : 1.0f;
v0.m_tangent = packF4u(tangent[0], tangent[1], tangent[2], tw);
}
}
int _main_(int _argc, char** _argv)
@ -317,8 +316,8 @@ int _main_(int _argc, char** _argv)
bgfx::IndexBufferHandle ibh = bgfx::createIndexBuffer(mem);
// Create texture sampler uniforms.
bgfx::UniformHandle u_texColor = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1iv);
bgfx::UniformHandle u_texNormal = bgfx::createUniform("u_texNormal", bgfx::UniformType::Uniform1iv);
bgfx::UniformHandle u_texColor = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1iv);
bgfx::UniformHandle u_texNormal = bgfx::createUniform("u_texNormal", bgfx::UniformType::Uniform1iv);
uint16_t numLights = 4;
bgfx::UniformHandle u_lightPosRadius = bgfx::createUniform("u_lightPosRadius", bgfx::UniformType::Uniform4fv, numLights);
@ -392,10 +391,10 @@ int _main_(int _argc, char** _argv)
float lightRgbInnerR[4][4] =
{
1.0f, 0.7f, 0.2f, 0.8f,
0.7f, 0.2f, 1.0f, 0.8f,
0.2f, 1.0f, 0.7f, 0.8f,
1.0f, 0.4f, 0.2f, 0.8f,
{ 1.0f, 0.7f, 0.2f, 0.8f },
{ 0.7f, 0.2f, 1.0f, 0.8f },
{ 0.2f, 1.0f, 0.7f, 0.8f },
{ 1.0f, 0.4f, 0.2f, 0.8f },
};
bgfx::setUniform(u_lightRgbInnerR, lightRgbInnerR, numLights);

18
premake/premake4.lua
View File

@ -153,6 +153,7 @@ configuration { "mingw" }
defines { "WIN32" }
includedirs { BX_DIR .. "include/compat/mingw" }
buildoptions {
"-std=c++0x",
"-U__STRICT_ANSI__",
"-Wunused-value",
"-fdata-sections",
@ -163,11 +164,6 @@ configuration { "mingw" }
"-Wl,--gc-sections",
}
configuration { "*.cpp", "mingw" }
buildoptions {
"-std=c++0x"
}
configuration { "x32", "mingw" }
targetdir (BGFX_BUILD_DIR .. "win32_mingw" .. "/bin")
objdir (BGFX_BUILD_DIR .. "win32_mingw" .. "/obj")
@ -182,6 +178,7 @@ configuration { "x64", "mingw" }
configuration { "linux" }
buildoptions {
"-std=c++0x",
"-U__STRICT_ANSI__",
"-Wunused-value",
"-mfpmath=sse", -- force SSE to get 32-bit and 64-bit builds deterministic.
@ -191,11 +188,6 @@ configuration { "linux" }
"-Wl,--gc-sections",
}
configuration { "*.cpp", "linux" }
buildoptions {
"-std=c++0x"
}
configuration { "linux", "x32" }
targetdir (BGFX_BUILD_DIR .. "linux32_gcc" .. "/bin")
objdir (BGFX_BUILD_DIR .. "linux32_gcc" .. "/obj")
@ -225,6 +217,7 @@ configuration { "nacl" }
defines { "_BSD_SOURCE=1", "_POSIX_C_SOURCE=199506", "_XOPEN_SOURCE=600" }
includedirs { BX_DIR .. "include/compat/nacl" }
buildoptions {
"-std=c++0x",
"-U__STRICT_ANSI__",
"-pthread",
"-fno-stack-protector",
@ -240,11 +233,6 @@ configuration { "nacl" }
"-Wl,--gc-sections",
}
configuration { "*.cpp", "nacl" }
buildoptions {
"-std=c++0x"
}
configuration { "x32", "nacl" }
targetdir (BGFX_BUILD_DIR .. "nacl-x86" .. "/bin")
objdir (BGFX_BUILD_DIR .. "nacl-x86" .. "/obj")