void TBRendererGL::BeginPaint(int render_target_w, int render_target_h)
{
#ifdef TB_RUNTIME_DEBUG_INFO
dbg_bitmap_validations = 0;
#endif
TBRendererBatcher::BeginPaint(render_target_w, render_target_h);
g_current_texture = (GLuint)-1;
g_current_batch = nullptr;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
Ortho2D(0, (GLfloat)render_target_w, (GLfloat)render_target_h, 0);
glMatrixMode(GL_MODELVIEW);
glViewport(0, 0, render_target_w, render_target_h);
glScissor(0, 0, render_target_w, render_target_h);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
}
void MainWindow::OnDisplay()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_rc->PushModelView();
gun->Draw();
camera.ApplyTransform(m_rc);
skybox->Draw();
static int viewLoc = mainShader->GetUniformLocation("View");
Matrix44f view = m_rc->GetModelView();
mainShader->Use();
glUniformMatrix4fv(viewLoc, 1, FALSE, view.data);
int drawCalls = sponza->Draw();
WCHAR buf[20] = L"";
StringCchPrintfW(buf, 20, L"Meshes: %d", drawCalls);
text->SetText(buf);
glEnable(GL_BLEND);
glDisable(GL_CULL_FACE);
if (fShowMuzzleFlash) {
m_rc->PushModelView();
m_rc->SetModelView(Matrix44f::Identity());
muzzle_flash->Draw();
m_rc->PopModelView();
}
m_rc->PushModelView();
m_rc->PushProjection();
float viewport[4] = { };
glGetFloatv(GL_VIEWPORT, viewport);
m_rc->SetProjection(Ortho2D(0, viewport[2], viewport[3], 0));
m_rc->SetModelView(Matrix44f::Identity());
crosshair->location = Vector3f(viewport[2]*0.5f, viewport[3]*0.5f, 0);
crosshair->Draw();
m_rc->PopModelView();
m_rc->PopProjection();
glEnable(GL_CULL_FACE);
glDisable(GL_BLEND);
text->Draw(10, 10);
m_rc->PopModelView();
}
void Text2D::Draw(int x, int y)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
font->fontTexture.Bind();
rc->PushProjection();
rc->PushModelView();
float viewport[4] = { };
glGetFloatv(GL_VIEWPORT, viewport);
rc->SetProjection(Ortho2D(0, viewport[2], viewport[3], 0));
rc->SetModelView(Translate((float)x, (float)y, 0));
if (!GLEW_ARB_shader_objects)
drawFixed(x, y);
else
{
glEnableVertexAttribArray(AttribsLocations.Vertex);
glEnableVertexAttribArray(AttribsLocations.TexCoord);
prog->Use();
prog->Uniform("Color", 1, font.color.data);
vertices.AttribPointer(AttribsLocations.Vertex, 3, GL_FLOAT);
texCoords.AttribPointer(AttribsLocations.TexCoord, 2, GL_FLOAT);
vertices.DrawArrays(GL_TRIANGLES, 0, numVerts);
glDisableVertexAttribArray(AttribsLocations.Vertex);
glDisableVertexAttribArray(AttribsLocations.TexCoord);
}
glDisable(GL_BLEND);
rc->PopModelView();
rc->PopProjection();
}
void MainWindow::OnDisplay()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_rc->PushModelView();
mainShader->Uniform("Mode", 1);
gun->Draw();
camera.ApplyTransform(m_rc);
skybox->Draw();
Matrix44f view = m_rc->GetModelView();
mainShader->UniformMatrix("View", 1, false, view.data);
mainShader->Uniform("Mode", 3);
for (int i = 0; i < numTargets; i++)
targets[i].model->Draw();
terrainShader->Use();
terrainShader->UniformMatrix("View", 1, false, view.data);
tex_ground->Bind();
tex_grass->Bind();
tex_rocks->Bind();
terrain->Draw();
glEnable(GL_BLEND);
glDisable(GL_CULL_FACE);
glEnableVertexAttribArray(bottomPosLoc);
glEnableVertexAttribArray(topPosLoc);
glVertexAttribDivisor(bottomPosLoc, 1);
glVertexAttribDivisor(topPosLoc, 1);
grass_pos[0]->AttribPointer(bottomPosLoc, 3, GL_FLOAT);
grass_pos[1]->AttribPointer(topPosLoc, 3, GL_FLOAT);
grassShader->Use();
grass_mesh->DrawInstanced(grassInstanceCount);
glVertexAttribDivisor(bottomPosLoc, 0);
glVertexAttribDivisor(topPosLoc, 0);
glDisableVertexAttribArray(bottomPosLoc);
glDisableVertexAttribArray(topPosLoc);
if (fShowMuzzleFlash) {
m_rc->PushModelView();
m_rc->SetModelView(Matrix44f::Identity());
mainShader->Uniform("Mode", 2);
muzzle_flash->Draw();
m_rc->PopModelView();
}
m_rc->PushModelView();
m_rc->PushProjection();
float viewport[4] = { };
glGetFloatv(GL_VIEWPORT, viewport);
m_rc->SetProjection(Ortho2D(0, viewport[2], viewport[3], 0));
m_rc->SetModelView(Matrix44f::Identity());
mainShader->Uniform("Mode", 2);
crosshair->location = Vector3f(viewport[2]*0.5f, viewport[3]*0.5f, 0);
crosshair->Draw();
m_rc->PopModelView();
m_rc->PopProjection();
glEnable(GL_CULL_FACE);
glDisable(GL_BLEND);
m_rc->PopModelView();
}
