ilikecats/stk-code_catmod
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Use a non-hardcoded values for mat4 array (max 1024)

Browse Source 
Also cull mesh that doesn't have enough space to be rendered
This commit is contained in:
Benau
2016-12-11 15:50:53 +08:00
parent f6490b6fa6
commit e9b68a8a1f
7 changed files with 27 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/graphics/shared_gpu_objects.cpp
View File

@@ -21,6 +21,7 @@
#include "graphics/central_settings.hpp"
#include "matrix4.h"
#include <algorithm>
GLuint SharedGPUObjects::m_billboard_vbo;
GLuint SharedGPUObjects::m_sky_tri_vbo;
@@ -34,6 +35,7 @@ GLuint SharedGPUObjects::m_ui_vao;
GLuint SharedGPUObjects::m_quad_buffer;
GLuint SharedGPUObjects::m_quad_vbo;
GLuint SharedGPUObjects::m_skinning_ubo;
int SharedGPUObjects::m_max_mat4_size = 1024;
bool SharedGPUObjects::m_has_been_initialised = false;
/** Initialises m_full_screen_quad_vbo.
@@ -178,8 +180,11 @@ void SharedGPUObjects::initSkinningUBO()
irr::core::matrix4 m;
glGenBuffers(1, &m_skinning_ubo);
glBindBuffer(GL_UNIFORM_BUFFER, m_skinning_ubo);
glBufferData(GL_UNIFORM_BUFFER, 1000 * 16 * sizeof(float), 0,
GL_STREAM_DRAW);
int max_size = 0;
glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &max_size);
max_size = std::min(max_size, 65536);
m_max_mat4_size = max_size / 16 / sizeof(float);
glBufferData(GL_UNIFORM_BUFFER, max_size, 0, GL_STREAM_DRAW);
// Reserve a identity matrix for non moving mesh in animated model used by
// vertex shader calculation
glBufferSubData(GL_UNIFORM_BUFFER, 0, 16 * sizeof(float), m.pointer());