1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "SmoothHeightMeshDrawer.h"
#include "Game/Camera.h"
#include "Sim/Misc/SmoothHeightMesh.h"
#include "Rendering/GL/RenderDataBuffer.hpp"
SmoothHeightMeshDrawer* SmoothHeightMeshDrawer::GetInstance() {
static SmoothHeightMeshDrawer drawer;
return &drawer;
}
void SmoothHeightMeshDrawer::Draw(float yoffset) {
if (!drawEnabled)
return;
glAttribStatePtr->PolygonMode(GL_FRONT_AND_BACK, GL_LINE);
const float quadSize = 4.0f * smoothGround.GetResolution();
const unsigned int numQuadsX = smoothGround.GetFMaxX() / quadSize;
const unsigned int numQuadsZ = smoothGround.GetFMaxY() / quadSize;
const SColor quadColor = {0.0f, 1.0f, 0.0f, 1.0f};
GL::RenderDataBufferC* buffer = GL::GetRenderBufferC();
Shader::IProgramObject* shader = buffer->GetShader();
shader->Enable();
shader->SetUniformMatrix4x4<float>("u_movi_mat", false, camera->GetViewMatrix());
shader->SetUniformMatrix4x4<float>("u_proj_mat", false, camera->GetProjectionMatrix());
for (unsigned int zq = 0; zq <= numQuadsZ; zq++) {
for (unsigned int xq = 0; xq <= numQuadsX; xq++) {
const float x = xq * quadSize;
const float z = zq * quadSize;
const float h1 = smoothGround.GetHeightAboveWater(x, z ) + yoffset;
const float h2 = smoothGround.GetHeightAboveWater(x + quadSize, z ) + yoffset;
const float h3 = smoothGround.GetHeightAboveWater(x + quadSize, z + quadSize) + yoffset;
const float h4 = smoothGround.GetHeightAboveWater(x, z + quadSize) + yoffset;
buffer->SafeAppend({{x, h1, z }, quadColor}); // tl
buffer->SafeAppend({{x + quadSize, h2, z }, quadColor}); // tr
buffer->SafeAppend({{x + quadSize, h3, z + quadSize}, quadColor}); // br
buffer->SafeAppend({{x + quadSize, h3, z + quadSize}, quadColor}); // br
buffer->SafeAppend({{x, h4, z + quadSize}, quadColor}); // bl
buffer->SafeAppend({{x, h1, z }, quadColor}); // tl
}
}
buffer->Submit(GL_TRIANGLES);
shader->Disable();
glAttribStatePtr->PolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
|
