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openspades/Sources/Draw/GLOptimizedVoxelModel.cpp

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/*
Copyright (c) 2013 yvt
This file is part of OpenSpades.
OpenSpades is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenSpades is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenSpades. If not, see <http://www.gnu.org/licenses/>.
*/
#include <set>
#include <Core/Bitmap.h>
#include <Core/BitmapAtlasGenerator.h>
#include <Core/Debug.h>
#include <Core/Exception.h>
#include "CellToTriangle.h"
#include "GLDynamicLightShader.h"
#include "GLImage.h"
#include "GLOptimizedVoxelModel.h"
#include "GLProgram.h"
#include "GLProgramAttribute.h"
#include "GLProgramUniform.h"
#include "GLRenderer.h"
#include "GLShadowMapShader.h"
#include "GLShadowShader.h"
#include "IGLShadowMapRenderer.h"
namespace spades {
namespace draw {
void GLOptimizedVoxelModel::PreloadShaders(spades::draw::GLRenderer *renderer) {
renderer->RegisterProgram("Shaders/OptimizedVoxelModel.program");
renderer->RegisterProgram("Shaders/OptimizedVoxelModelDynamicLit.program");
renderer->RegisterProgram("Shaders/OptimizedVoxelModelShadowMap.program");
renderer->RegisterImage("Gfx/AmbientOcclusion.png");
}
GLOptimizedVoxelModel::GLOptimizedVoxelModel(VoxelModel *m, GLRenderer *r) {
SPADES_MARK_FUNCTION();
renderer = r;
device = r->GetGLDevice();
BuildVertices(m);
GenerateTexture();
program = renderer->RegisterProgram("Shaders/OptimizedVoxelModel.program");
dlightProgram =
renderer->RegisterProgram("Shaders/OptimizedVoxelModelDynamicLit.program");
shadowMapProgram =
renderer->RegisterProgram("Shaders/OptimizedVoxelModelShadowMap.program");
aoImage = (GLImage *)renderer->RegisterImage("Gfx/AmbientOcclusion.png");
buffer = device->GenBuffer();
device->BindBuffer(IGLDevice::ArrayBuffer, buffer);
device->BufferData(IGLDevice::ArrayBuffer,
static_cast<IGLDevice::Sizei>(vertices.size() * sizeof(Vertex)),
vertices.data(), IGLDevice::StaticDraw);
idxBuffer = device->GenBuffer();
device->BindBuffer(IGLDevice::ArrayBuffer, idxBuffer);
device->BufferData(IGLDevice::ArrayBuffer,
static_cast<IGLDevice::Sizei>(indices.size() * sizeof(uint32_t)),
indices.data(), IGLDevice::StaticDraw);
device->BindBuffer(IGLDevice::ArrayBuffer, 0);
origin = m->GetOrigin();
origin -= .5f; // (0,0,0) is center of voxel (0,0,0)
Vector3 minPos = {0, 0, 0};
Vector3 maxPos = {(float)m->GetWidth(), (float)m->GetHeight(), (float)m->GetDepth()};
minPos += origin;
maxPos += origin;
Vector3 maxDiff = {std::max(fabsf(minPos.x), fabsf(maxPos.x)),
std::max(fabsf(minPos.y), fabsf(maxPos.y)),
std::max(fabsf(minPos.z), fabsf(maxPos.z))};
radius = maxDiff.GetLength();
boundingBox.min = minPos;
boundingBox.max = maxPos;
// clean up
numIndices = (unsigned int)indices.size();
std::vector<Vertex>().swap(vertices);
std::vector<uint32_t>().swap(indices);
}
GLOptimizedVoxelModel::~GLOptimizedVoxelModel() {
SPADES_MARK_FUNCTION();
image->Release();
device->DeleteBuffer(idxBuffer);
device->DeleteBuffer(buffer);
}
void GLOptimizedVoxelModel::GenerateTexture() {
BitmapAtlasGenerator atlasGen;
std::map<Bitmap *, int> idx;
std::vector<IntVector3> poss;
for (size_t i = 0; i < bmps.size(); i++) {
idx[bmps[i]] = static_cast<int>(i);
atlasGen.AddBitmap(bmps[i]);
}
BitmapAtlasGenerator::Result result = atlasGen.Pack();
Handle<Bitmap> bmp(result.bitmap, false);
SPAssert(result.items.size() == bmps.size());
for (size_t i = 0; i < bmps.size(); i++) {
bmps[i]->Release();
}
bmps.clear();
poss.resize(result.items.size());
for (size_t i = 0; i < result.items.size(); i++) {
const BitmapAtlasGenerator::Item &item = result.items[i];
int id = idx[item.bitmap];
poss[id] = IntVector3::Make(item.x, item.y, 0);
}
// move vertices' texture coord
SPAssert(bmpIndex.size() == vertices.size());
for (size_t i = 0; i < bmpIndex.size(); i++) {
int id = (int)bmpIndex[i];
Vertex &v = vertices[i];
IntVector3 p = poss[id];
v.u += p.x;
v.v += p.y;
}
std::vector<uint16_t>().swap(bmpIndex);
image = static_cast<GLImage *>(renderer->CreateImage(bmp));
}
uint8_t GLOptimizedVoxelModel::calcAOID(VoxelModel *m, int x, int y, int z, int ux, int uy,
int uz, int vx, int vy, int vz) {
int v = 0;
if (m->IsSolid(x - ux, y - uy, z - uz))
v |= 1;
if (m->IsSolid(x + ux, y + uy, z + uz))
v |= 1 << 1;
if (m->IsSolid(x - vx, y - vy, z - vz))
v |= 1 << 2;
if (m->IsSolid(x + vx, y + vy, z + vz))
v |= 1 << 3;
if (m->IsSolid(x - ux + vx, y - uy + vy, z - uz + vz))
v |= 1 << 4;
if (m->IsSolid(x - ux - vx, y - uy - vy, z - uz - vz))
v |= 1 << 5;
if (m->IsSolid(x + ux + vx, y + uy + vy, z + uz + vz))
v |= 1 << 6;
if (m->IsSolid(x + ux - vx, y + uy - vy, z + uz - vz))
v |= 1 << 7;
return (uint8_t)v;
}
template <class C> static void FreeClear(C &cntr) {
for (typename C::iterator it = cntr.begin(); it != cntr.end(); ++it) {
delete *it;
}
cntr.clear();
}
class GLOptimizedVoxelModel::SliceGenerator {
public:
// 0 - air
// 1 - unprocessed solid
// 2 - "inside" the processed area, but not connected
// 3 - found holes
uint8_t *slice;
int usize, vsize;
int minU, maxU, minV, maxV;
class Model {
const uint8_t *slice;
int usize, vsize;
public:
Model(const uint8_t *slice, int usize, int vsize)
: slice(slice), usize(usize), vsize(vsize) {}
inline int GetWidth() { return usize; }
inline int GetHeight() { return vsize; }
inline bool operator()(int x, int y) const {
if (x < 0 || y < 0 || x >= usize || y >= vsize)
return false;
return slice[x * vsize + y] != 0;
}
};
std::unique_ptr<c2t::Trianglulator<Model>> triangulator;
uint8_t &Slice(int u, int v) {
SPAssert(u >= 0);
SPAssert(v >= 0);
SPAssert(u < usize);
SPAssert(v < vsize);
return slice[u * vsize + v];
}
uint8_t GetSlice(int u, int v) {
if (u < 0 || v < 0 || u >= usize || v >= vsize)
return 0;
return Slice(u, v);
}
std::vector<c2t::Point> ProcessArea() {
if (triangulator == nullptr) {
triangulator = decltype(triangulator){
new c2t::Trianglulator<Model>(Model(slice, usize, vsize))};
}
return triangulator->Triangulate();
}
};
static IntVector3 ExactPoint(c2t::Point pt) { return IntVector3::Make(pt.x, pt.y, 0); }
static int64_t DoubledTriangleArea(IntVector3 v1, IntVector3 v2, IntVector3 v3) {
int64_t x1 = v1.x, y1 = v1.y;
int64_t x2 = v2.x, y2 = v2.y;
int64_t x3 = v3.x, y3 = v3.y;
return (x1 - x3) * (y2 - y1) - (x1 - x2) * (y3 - y1);
}
void GLOptimizedVoxelModel::EmitSlice(uint8_t *slice, int usize, int vsize, int sx, int sy,
int sz, int ux, int uy, int uz, int vx, int vy,
int vz, int mx, int my, int mz, bool flip,
VoxelModel *model) {
SPADES_MARK_FUNCTION();
int minU = -1, minV = -1, maxU = -1, maxV = -1;
for (int u = 0; u < usize; u++) {
for (int v = 0; v < vsize; v++) {
if (slice[u * vsize + v]) {
if (minU == -1 || u < minU)
minU = u;
if (maxU == -1 || u > maxU)
maxU = u;
if (minV == -1 || v < minV)
minV = v;
if (maxV == -1 || v > maxV)
maxV = v;
}
}
}
if (minU == -1) {
// no face
return;
}
int nx, ny, nz;
nx = uy * vz - uz * vy;
ny = uz * vx - ux * vz;
nz = ux * vy - uy * vx;
if (!flip) {
nx = -nx;
ny = -ny;
nz = -nz;
}
SliceGenerator generator;
generator.slice = slice;
generator.usize = usize;
generator.vsize = vsize;
generator.minU = minU;
generator.maxU = maxU;
generator.minV = minV;
generator.maxV = maxV;
int tu = minU - 1, tv = minV - 1;
int bw = (maxU - minU) + 3, bh = (maxV - minV) + 3;
int bId = static_cast<int>(bmps.size());
Bitmap *bmp = new Bitmap(bw, bh);
bmps.push_back(bmp);
{
uint32_t *pixels = bmp->GetPixels();
IntVector3 p1 = {mx, my, mz};
IntVector3 uu = {ux, uy, uz};
IntVector3 vv = {vx, vy, vz};
IntVector3 nn = {nx, ny, nz};
p1 += uu * tu;
p1 += vv * tv;
for (int y = 0; y < bh; y++) {
IntVector3 p2 = p1;
for (int x = 0; x < bw; x++) {
IntVector3 p3 = p2;
int u = x + tu, v = y + tv;
if (u < 0 || v < 0 || u >= usize || v >= vsize || !slice[u * vsize + v]) {
if ((v >= 0 && v < vsize) && u > 0 && slice[(u - 1) * vsize + (v)]) {
u--;
p3 -= uu;
} else if ((v >= 0 && v < vsize) && u < usize - 1 &&
slice[(u + 1) * vsize + (v)]) {
u++;
p3 += uu;
} else if ((u >= 0 && u < usize) && v > 0 &&
slice[(u)*vsize + (v - 1)]) {
v--;
p3 -= vv;
} else if ((u >= 0 && u < usize) && v < vsize - 1 &&
slice[(u)*vsize + (v + 1)]) {
v++;
p3 += vv;
} else if (u > 0 && v > 0 && slice[(u - 1) * vsize + (v - 1)]) {
u--;
v--;
p3 -= uu;
p3 -= vv;
} else if (u > 0 && v < vsize - 1 && slice[(u - 1) * vsize + (v + 1)]) {
u--;
v++;
p3 -= uu;
p3 += vv;
} else if (u < usize - 1 && v > 0 && slice[(u + 1) * vsize + (v - 1)]) {
u++;
v--;
p3 += uu;
p3 -= vv;
} else if (u < usize - 1 && v < vsize - 1 &&
slice[(u + 1) * vsize + (v + 1)]) {
u++;
v++;
p3 += uu;
p3 += vv;
} else {
*(pixels++) = 0x00ff00ff;
p2 += uu;
continue;
}
}
SPAssert(model->IsSolid(p3.x, p3.y, p3.z));
uint32_t col = model->GetColor(p3.x, p3.y, p3.z);
col &= 0xffffff;
// add AOID
p3 += nn;
SPAssert(!model->IsSolid(p3.x, p3.y, p3.z));
uint8_t aoId = calcAOID(model, p3.x, p3.y, p3.z, ux, uy, uz, vx, vy, vz);
col |= ((uint8_t)aoId) << 24;
*(pixels++) = col;
p2 += uu;
}
p1 += vv;
}
}
// TODO: optimize scan range
auto polys = generator.ProcessArea();
for (std::size_t i = 0; i < polys.size(); i += 3) {
uint32_t idx = (uint32_t)vertices.size();
IntVector3 pt1 = ExactPoint(polys[i + 0]);
IntVector3 pt2 = ExactPoint(polys[i + 1]);
IntVector3 pt3 = ExactPoint(polys[i + 2]);
// degenerate triangle
if (DoubledTriangleArea(pt1, pt2, pt3) == 0)
continue;
Vertex vtx;
vtx.nx = nx;
vtx.ny = ny;
vtx.nz = nz;
vtx.x = sx + (int)pt1.x * ux + (int)pt1.y * vx;
vtx.y = sy + (int)pt1.x * uy + (int)pt1.y * vy;
vtx.z = sz + (int)pt1.x * uz + (int)pt1.y * vz;
vtx.u = (int)pt1.x - tu;
vtx.v = (int)pt1.y - tv;
vertices.push_back(vtx);
vtx.x = sx + (int)pt2.x * ux + (int)pt2.y * vx;
vtx.y = sy + (int)pt2.x * uy + (int)pt2.y * vy;
vtx.z = sz + (int)pt2.x * uz + (int)pt2.y * vz;
vtx.u = (int)pt2.x - tu;
vtx.v = (int)pt2.y - tv;
vertices.push_back(vtx);
vtx.x = sx + (int)pt3.x * ux + (int)pt3.y * vx;
vtx.y = sy + (int)pt3.x * uy + (int)pt3.y * vy;
vtx.z = sz + (int)pt3.x * uz + (int)pt3.y * vz;
vtx.u = (int)pt3.x - tu;
vtx.v = (int)pt3.y - tv;
vertices.push_back(vtx);
if (!flip) {
indices.push_back(idx + 2);
indices.push_back(idx + 1);
indices.push_back(idx);
} else {
indices.push_back(idx);
indices.push_back(idx + 1);
indices.push_back(idx + 2);
}
bmpIndex.push_back(bId);
bmpIndex.push_back(bId);
bmpIndex.push_back(bId);
}
}
void GLOptimizedVoxelModel::BuildVertices(spades::VoxelModel *model) {
SPADES_MARK_FUNCTION();
SPAssert(vertices.empty());
SPAssert(indices.empty());
int w = model->GetWidth();
int h = model->GetHeight();
int d = model->GetDepth();
std::vector<uint8_t> slice;
// x-slice
slice.resize(h * d);
std::fill(slice.begin(), slice.end(), 0);
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
for (int z = 0; z < d; z++) {
uint8_t &s = slice[y * d + z];
if (x == 0)
s = model->IsSolid(x, y, z) ? 1 : 0;
else
s = (model->IsSolid(x, y, z) && !model->IsSolid(x - 1, y, z)) ? 1 : 0;
}
}
EmitSlice(slice.data(), h, d, x, 0, 0, 0, 1, 0, 0, 0, 1, x, 0, 0, false, model);
for (int y = 0; y < h; y++) {
for (int z = 0; z < d; z++) {
uint8_t &s = slice[y * d + z];
if (x == w - 1)
s = model->IsSolid(x, y, z) ? 1 : 0;
else
s = (model->IsSolid(x, y, z) && !model->IsSolid(x + 1, y, z)) ? 1 : 0;
}
}
EmitSlice(slice.data(), h, d, x + 1, 0, 0, 0, 1, 0, 0, 0, 1, x, 0, 0, true, model);
}
// y-slice
slice.resize(w * d);
std::fill(slice.begin(), slice.end(), 0);
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
for (int z = 0; z < d; z++) {
uint8_t &s = slice[x * d + z];
if (y == 0)
s = model->IsSolid(x, y, z) ? 1 : 0;
else
s = (model->IsSolid(x, y, z) && !model->IsSolid(x, y - 1, z)) ? 1 : 0;
}
}
EmitSlice(slice.data(), w, d, 0, y, 0, 1, 0, 0, 0, 0, 1, 0, y, 0, true, model);
for (int x = 0; x < w; x++) {
for (int z = 0; z < d; z++) {
uint8_t &s = slice[x * d + z];
if (y == h - 1)
s = model->IsSolid(x, y, z) ? 1 : 0;
else
s = (model->IsSolid(x, y, z) && !model->IsSolid(x, y + 1, z)) ? 1 : 0;
}
}
EmitSlice(slice.data(), w, d, 0, y + 1, 0, 1, 0, 0, 0, 0, 1, 0, y, 0, false, model);
}
// z-slice
slice.resize(w * h);
std::fill(slice.begin(), slice.end(), 0);
for (int z = 0; z < d; z++) {
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
uint8_t &s = slice[x * h + y];
if (z == 0)
s = model->IsSolid(x, y, z) ? 1 : 0;
else
s = (model->IsSolid(x, y, z) && !model->IsSolid(x, y, z - 1)) ? 1 : 0;
}
}
EmitSlice(slice.data(), w, h, 0, 0, z, 1, 0, 0, 0, 1, 0, 0, 0, z, false, model);
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
uint8_t &s = slice[x * h + y];
if (z == d - 1)
s = model->IsSolid(x, y, z) ? 1 : 0;
else
s = (model->IsSolid(x, y, z) && !model->IsSolid(x, y, z + 1)) ? 1 : 0;
}
}
EmitSlice(slice.data(), w, h, 0, 0, z + 1, 1, 0, 0, 0, 1, 0, 0, 0, z, true, model);
}
printf("%d vertices emit\n", (int)indices.size());
}
void GLOptimizedVoxelModel::Prerender(std::vector<client::ModelRenderParam> params) {
SPADES_MARK_FUNCTION();
RenderSunlightPass(params);
}
void
GLOptimizedVoxelModel::RenderShadowMapPass(std::vector<client::ModelRenderParam> params) {
SPADES_MARK_FUNCTION();
device->Enable(IGLDevice::CullFace, true);
device->Enable(IGLDevice::DepthTest, true);
shadowMapProgram->Use();
static GLShadowMapShader shadowMapShader;
shadowMapShader(renderer, shadowMapProgram, 0);
static GLProgramUniform modelOrigin("modelOrigin");
modelOrigin(shadowMapProgram);
modelOrigin.SetValue(origin.x, origin.y, origin.z);
// setup attributes
static GLProgramAttribute positionAttribute("positionAttribute");
static GLProgramAttribute normalAttribute("normalAttribute");
positionAttribute(shadowMapProgram);
normalAttribute(shadowMapProgram);
device->BindBuffer(IGLDevice::ArrayBuffer, buffer);
device->VertexAttribPointer(positionAttribute(), 4, IGLDevice::UnsignedByte, false,
sizeof(Vertex), (void *)0);
if (normalAttribute() != -1) {
device->VertexAttribPointer(normalAttribute(), 3, IGLDevice::Byte, false,
sizeof(Vertex), (void *)8);
}
device->BindBuffer(IGLDevice::ArrayBuffer, 0);
device->EnableVertexAttribArray(positionAttribute(), true);
if (normalAttribute() != -1)
device->EnableVertexAttribArray(normalAttribute(), true);
device->BindBuffer(IGLDevice::ElementArrayBuffer, idxBuffer);
for (size_t i = 0; i < params.size(); i++) {
const client::ModelRenderParam &param = params[i];
// frustrum cull
float rad = radius;
rad *= param.matrix.GetAxis(0).GetLength();
if (param.depthHack)
continue;
if (!renderer->GetShadowMapRenderer()->SphereCull(param.matrix.GetOrigin(), rad)) {
continue;
}
Matrix4 modelMatrix = param.matrix;
static GLProgramUniform modelMatrixU("modelMatrix");
modelMatrixU(shadowMapProgram);
modelMatrixU.SetValue(modelMatrix);
modelMatrix.m[12] = 0.f;
modelMatrix.m[13] = 0.f;
modelMatrix.m[14] = 0.f;
static GLProgramUniform modelNormalMatrix("modelNormalMatrix");
modelNormalMatrix(shadowMapProgram);
modelNormalMatrix.SetValue(modelMatrix);
device->DrawElements(IGLDevice::Triangles, numIndices, IGLDevice::UnsignedInt,
(void *)0);
}
device->BindBuffer(IGLDevice::ElementArrayBuffer, 0);
device->EnableVertexAttribArray(positionAttribute(), false);
if (normalAttribute() != -1)
device->EnableVertexAttribArray(normalAttribute(), false);
device->ActiveTexture(0);
device->BindTexture(IGLDevice::Texture2D, 0);
}
void
GLOptimizedVoxelModel::RenderSunlightPass(std::vector<client::ModelRenderParam> params) {
SPADES_MARK_FUNCTION();
bool mirror = renderer->IsRenderingMirror();
device->ActiveTexture(0);
aoImage->Bind(IGLDevice::Texture2D);
device->TexParamater(IGLDevice::Texture2D, IGLDevice::TextureMinFilter,
IGLDevice::Linear);
device->ActiveTexture(1);
image->Bind(IGLDevice::Texture2D);
device->TexParamater(IGLDevice::Texture2D, IGLDevice::TextureMinFilter,
IGLDevice::Nearest);
device->TexParamater(IGLDevice::Texture2D, IGLDevice::TextureMagFilter,
IGLDevice::Nearest);
device->Enable(IGLDevice::CullFace, true);
device->Enable(IGLDevice::DepthTest, true);
program->Use();
static GLShadowShader shadowShader;
shadowShader(renderer, program, 2);
static GLProgramUniform fogDistance("fogDistance");
fogDistance(program);
fogDistance.SetValue(renderer->GetFogDistance());
static GLProgramUniform fogColor("fogColor");
fogColor(program);
Vector3 fogCol = renderer->GetFogColorForSolidPass();
fogCol *= fogCol; // linearize
fogColor.SetValue(fogCol.x, fogCol.y, fogCol.z);
static GLProgramUniform aoUniform("ambientOcclusionTexture");
aoUniform(program);
aoUniform.SetValue(0);
static GLProgramUniform modelOrigin("modelOrigin");
modelOrigin(program);
modelOrigin.SetValue(origin.x, origin.y, origin.z);
static GLProgramUniform texScale("texScale");
texScale(program);
texScale.SetValue(1.f / image->GetWidth(), 1.f / image->GetHeight());
static GLProgramUniform modelTexture("modelTexture");
modelTexture(program);
modelTexture.SetValue(1);
static GLProgramUniform sunLightDirection("sunLightDirection");
sunLightDirection(program);
Vector3 sunPos = MakeVector3(0, -1, -1);
sunPos = sunPos.Normalize();
sunLightDirection.SetValue(sunPos.x, sunPos.y, sunPos.z);
static GLProgramUniform viewOriginVector("viewOriginVector");
viewOriginVector(program);
const auto &viewOrigin = renderer->GetSceneDef().viewOrigin;
viewOriginVector.SetValue(viewOrigin.x, viewOrigin.y, viewOrigin.z);
// setup attributes
static GLProgramAttribute positionAttribute("positionAttribute");
static GLProgramAttribute textureCoordAttribute("textureCoordAttribute");
static GLProgramAttribute normalAttribute("normalAttribute");
positionAttribute(program);
textureCoordAttribute(program);
normalAttribute(program);
device->BindBuffer(IGLDevice::ArrayBuffer, buffer);
device->VertexAttribPointer(positionAttribute(), 4, IGLDevice::UnsignedByte, false,
sizeof(Vertex), (void *)0);
device->VertexAttribPointer(textureCoordAttribute(), 2, IGLDevice::UnsignedShort, false,
sizeof(Vertex), (void *)4);
device->VertexAttribPointer(normalAttribute(), 3, IGLDevice::Byte, false,
sizeof(Vertex), (void *)8);
device->BindBuffer(IGLDevice::ArrayBuffer, 0);
device->EnableVertexAttribArray(positionAttribute(), true);
device->EnableVertexAttribArray(textureCoordAttribute(), true);
device->EnableVertexAttribArray(normalAttribute(), true);
device->BindBuffer(IGLDevice::ElementArrayBuffer, idxBuffer);
for (size_t i = 0; i < params.size(); i++) {
const client::ModelRenderParam &param = params[i];
if (mirror && param.depthHack)
continue;
// frustrum cull
float rad = radius;
rad *= param.matrix.GetAxis(0).GetLength();
if (!renderer->SphereFrustrumCull(param.matrix.GetOrigin(), rad)) {
continue;
}
static GLProgramUniform customColor("customColor");
customColor(program);
customColor.SetValue(param.customColor.x, param.customColor.y, param.customColor.z);
Matrix4 modelMatrix = param.matrix;
static GLProgramUniform projectionViewModelMatrix("projectionViewModelMatrix");
projectionViewModelMatrix(program);
projectionViewModelMatrix.SetValue(renderer->GetProjectionViewMatrix() *
modelMatrix);
static GLProgramUniform viewModelMatrix("viewModelMatrix");
viewModelMatrix(program);
viewModelMatrix.SetValue(renderer->GetViewMatrix() * modelMatrix);
static GLProgramUniform modelMatrixU("modelMatrix");
modelMatrixU(program);
modelMatrixU.SetValue(modelMatrix);
modelMatrix.m[12] = 0.f;
modelMatrix.m[13] = 0.f;
modelMatrix.m[14] = 0.f;
static GLProgramUniform modelNormalMatrix("modelNormalMatrix");
modelNormalMatrix(program);
modelNormalMatrix.SetValue(modelMatrix);
if (param.depthHack) {
device->DepthRange(0.f, 0.1f);
}
device->DrawElements(IGLDevice::Triangles, numIndices, IGLDevice::UnsignedInt,
(void *)0);
if (param.depthHack) {
device->DepthRange(0.f, 1.f);
}
}
device->BindBuffer(IGLDevice::ElementArrayBuffer, 0);
device->EnableVertexAttribArray(positionAttribute(), false);
device->EnableVertexAttribArray(textureCoordAttribute(), false);
device->EnableVertexAttribArray(normalAttribute(), false);
device->ActiveTexture(1);
device->BindTexture(IGLDevice::Texture2D, 0);
device->ActiveTexture(0);
device->BindTexture(IGLDevice::Texture2D, 0);
}
void
GLOptimizedVoxelModel::RenderDynamicLightPass(std::vector<client::ModelRenderParam> params,
std::vector<GLDynamicLight> lights) {
SPADES_MARK_FUNCTION();
bool mirror = renderer->IsRenderingMirror();
device->ActiveTexture(0);
aoImage->Bind(IGLDevice::Texture2D);
device->TexParamater(IGLDevice::Texture2D, IGLDevice::TextureMinFilter,
IGLDevice::Linear);
device->ActiveTexture(1);
image->Bind(IGLDevice::Texture2D);
device->TexParamater(IGLDevice::Texture2D, IGLDevice::TextureMinFilter,
IGLDevice::Nearest);
device->TexParamater(IGLDevice::Texture2D, IGLDevice::TextureMagFilter,
IGLDevice::Nearest);
device->Enable(IGLDevice::CullFace, true);
device->Enable(IGLDevice::DepthTest, true);
dlightProgram->Use();
static GLDynamicLightShader dlightShader;
static GLProgramUniform fogDistance("fogDistance");
fogDistance(dlightProgram);
fogDistance.SetValue(renderer->GetFogDistance());
static GLProgramUniform modelOrigin("modelOrigin");
modelOrigin(dlightProgram);
modelOrigin.SetValue(origin.x, origin.y, origin.z);
static GLProgramUniform texScale("texScale");
texScale(dlightProgram);
texScale.SetValue(1.f / image->GetWidth(), 1.f / image->GetHeight());
static GLProgramUniform modelTexture("modelTexture");
modelTexture(dlightProgram);
modelTexture.SetValue(1);
static GLProgramUniform viewOriginVector("viewOriginVector");
viewOriginVector(dlightProgram);
const auto &viewOrigin = renderer->GetSceneDef().viewOrigin;
viewOriginVector.SetValue(viewOrigin.x, viewOrigin.y, viewOrigin.z);
// setup attributes
static GLProgramAttribute positionAttribute("positionAttribute");
static GLProgramAttribute textureCoordAttribute("textureCoordAttribute");
static GLProgramAttribute normalAttribute("normalAttribute");
positionAttribute(dlightProgram);
textureCoordAttribute(dlightProgram);
normalAttribute(dlightProgram);
device->BindBuffer(IGLDevice::ArrayBuffer, buffer);
device->VertexAttribPointer(positionAttribute(), 4, IGLDevice::UnsignedByte, false,
sizeof(Vertex), (void *)0);
device->VertexAttribPointer(textureCoordAttribute(), 2, IGLDevice::UnsignedShort, false,
sizeof(Vertex), (void *)4);
device->VertexAttribPointer(normalAttribute(), 3, IGLDevice::Byte, false,
sizeof(Vertex), (void *)8);
device->BindBuffer(IGLDevice::ArrayBuffer, 0);
device->EnableVertexAttribArray(positionAttribute(), true);
device->EnableVertexAttribArray(textureCoordAttribute(), true);
device->EnableVertexAttribArray(normalAttribute(), true);
device->BindBuffer(IGLDevice::ElementArrayBuffer, idxBuffer);
for (size_t i = 0; i < params.size(); i++) {
const client::ModelRenderParam &param = params[i];
if (mirror && param.depthHack)
continue;
// frustrum cull
float rad = radius;
rad *= param.matrix.GetAxis(0).GetLength();
if (!renderer->SphereFrustrumCull(param.matrix.GetOrigin(), rad)) {
continue;
}
static GLProgramUniform customColor("customColor");
customColor(dlightProgram);
customColor.SetValue(param.customColor.x, param.customColor.y, param.customColor.z);
Matrix4 modelMatrix = param.matrix;
static GLProgramUniform projectionViewModelMatrix("projectionViewModelMatrix");
projectionViewModelMatrix(dlightProgram);
projectionViewModelMatrix.SetValue(renderer->GetProjectionViewMatrix() *
modelMatrix);
static GLProgramUniform viewModelMatrix("viewModelMatrix");
viewModelMatrix(dlightProgram);
viewModelMatrix.SetValue(renderer->GetViewMatrix() * modelMatrix);
static GLProgramUniform modelMatrixU("modelMatrix");
modelMatrixU(dlightProgram);
modelMatrixU.SetValue(modelMatrix);
modelMatrix.m[12] = 0.f;
modelMatrix.m[13] = 0.f;
modelMatrix.m[14] = 0.f;
static GLProgramUniform modelNormalMatrix("modelNormalMatrix");
modelNormalMatrix(dlightProgram);
modelNormalMatrix.SetValue(modelMatrix);
if (param.depthHack) {
device->DepthRange(0.f, 0.1f);
}
for (size_t i = 0; i < lights.size(); i++) {
if (!lights[i].SphereCull(param.matrix.GetOrigin(), rad))
continue;
dlightShader(renderer, dlightProgram, lights[i], 2);
device->DrawElements(IGLDevice::Triangles, numIndices, IGLDevice::UnsignedInt,
(void *)0);
}
if (param.depthHack) {
device->DepthRange(0.f, 1.f);
}
}
device->BindBuffer(IGLDevice::ElementArrayBuffer, 0);
device->EnableVertexAttribArray(positionAttribute(), false);
device->EnableVertexAttribArray(textureCoordAttribute(), false);
device->EnableVertexAttribArray(normalAttribute(), false);
device->ActiveTexture(0);
}
}
}
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