comparison: src/gl/gridprogram.cpp
src/gl/gridprogram.cpp
- changeset 55
- cb81ecb5fb23
- parent 54
- a4055f67b9c7
- child 64
- f99d52b1646b
equal
deleted
inserted
replaced
| 54:a4055f67b9c7 | 55:cb81ecb5fb23 |
|---|---|
| 40 const char fragmentShaderSource[] = R"( | 40 const char fragmentShaderSource[] = R"( |
| 41 #version 330 core | 41 #version 330 core |
| 42 | 42 |
| 43 out vec4 color; | 43 out vec4 color; |
| 44 smooth in vec2 ex_uv; | 44 smooth in vec2 ex_uv; |
| 45 const vec4 lineColor = vec4(1.0, 1.0, 1.0, 0.75); | 45 uniform vec4 gridColor; |
| 46 const float pi = 3.14159265f; | 46 const float pi = 3.14159265f; |
| 47 | 47 |
| 48 void main(void) | 48 void main(void) |
| 49 { | 49 { |
| 50 float dx = fract(ex_uv.y / 0.0001f); | 50 float dx = fract(ex_uv.y / 0.0001f); |
| 56 /* fade the grid towards extreme co-ordinates */ | 56 /* fade the grid towards extreme co-ordinates */ |
| 57 d = (1.0f - 20 * max(abs(ex_uv.x), abs(ex_uv.y))) * d; | 57 d = (1.0f - 20 * max(abs(ex_uv.x), abs(ex_uv.y))) * d; |
| 58 /* add dashes */ | 58 /* add dashes */ |
| 59 d *= (1 + cos(ex_uv.y / 0.00001f * pi)) * 0.5f; | 59 d *= (1 + cos(ex_uv.y / 0.00001f * pi)) * 0.5f; |
| 60 d *= (1 + cos(ex_uv.x / 0.00001f * pi)) * 0.5f; | 60 d *= (1 + cos(ex_uv.x / 0.00001f * pi)) * 0.5f; |
| 61 color = vec4(lineColor.xyz, d); | 61 color = vec4(gridColor.xyz, gridColor.w * d); |
| 62 } | 62 } |
| 63 )"; | 63 )"; |
| 64 | 64 |
| 65 static const glm::vec2 data[] = {{-1, -1}, {-1, 1}, {1, 1}, {1, -1}}; | 65 static const glm::vec2 data[] = {{-1, -1}, {-1, 1}, {1, 1}, {1, -1}}; |
| 66 | 66 |
| 87 this->buffer.allocate(data, countof(data) * sizeof data[0]); | 87 this->buffer.allocate(data, countof(data) * sizeof data[0]); |
| 88 this->vertexArrayObject.create(); | 88 this->vertexArrayObject.create(); |
| 89 this->vertexArrayObject.bind(); | 89 this->vertexArrayObject.bind(); |
| 90 this->program->enableAttributeArray(0); | 90 this->program->enableAttributeArray(0); |
| 91 this->program->setAttributeBuffer(0, GL_FLOAT, 0, 2, 0); | 91 this->program->setAttributeBuffer(0, GL_FLOAT, 0, 2, 0); |
| 92 this->program->setUniformVector("gridColor", this->gridColor); | |
| 92 this->vertexArrayObject.release(); | 93 this->vertexArrayObject.release(); |
| 93 this->buffer.release(); | 94 this->buffer.release(); |
| 94 this->program->release(); | 95 this->program->release(); |
| 95 this->checkForGLErrors(); | 96 this->checkForGLErrors(); |
| 96 } | 97 } |
| 121 this->program->setUniformMatrix("model", newModelMatrix); | 122 this->program->setUniformMatrix("model", newModelMatrix); |
| 122 this->program->release(); | 123 this->program->release(); |
| 123 this->checkForGLErrors(); | 124 this->checkForGLErrors(); |
| 124 } | 125 } |
| 125 | 126 |
| 127 void GridProgram::setGridColor(const QColor& newGridColor) | |
| 128 { | |
| 129 const glm::vec4 vec = gl::colorToVector4(newGridColor); | |
| 130 if (this->isInitialized) | |
| 131 { | |
| 132 this->program->bind(); | |
| 133 this->program->setUniformVector("gridColor", vec); | |
| 134 this->program->release(); | |
| 135 this->checkForGLErrors(); | |
| 136 } | |
| 137 else | |
| 138 { | |
| 139 this->gridColor = vec; | |
| 140 } | |
| 141 } | |
| 142 | |
| 126 void GridProgram::draw() | 143 void GridProgram::draw() |
| 127 { | 144 { |
| 128 this->program->bind(); | 145 this->program->bind(); |
| 129 this->vertexArrayObject.bind(); | 146 this->vertexArrayObject.bind(); |
| 130 glDrawArrays(GL_QUADS, 0, countof(data)); | 147 glDrawArrays(GL_QUADS, 0, countof(data)); |
